A directory of where to buy chemicals in the USA, including: distributors, industrial manufacturers, bulk supplies and wholesalers of raw ingredients & finished goods.
ABC-type (ATP-binding cassette-type) ATPase, characterized by the presence of two similar ATP-binding domains. Does not undergo phosphorylation during the transport process. A yeast enzyme that exports some heavy metals, especially Cd2+, from the cytosol into the vacuole. Group: Enzymes. Enzyme Commission Number: EC 7.2.2.2 (Formerly EC 3.6.3.46). Storage: Store it at +4 ?C for short term. For long term storage, store it at -20 ?C?-80 ?C. Form: Liquid or lyophilized powder. EXWM-4684; cadmium-transporting ATPase; EC 3.6.3.46. Cat No: EXWM-4684.
Cadonilimab (AK104) is a humanized tetravalent IgG1 bispecific antibody targeting PD1/CTLA4. Cadonilimab blocks both PD-1 and CTLA-4 pathways, thereby relieving their corresponding immunosuppressive effects and reversing tumor specific T cell exhaustion. Cadonilimab significantly downregulates Fc-mediated effector functions, including antibody-dependent cell-mediated cytotoxicity (ADCC), antibody-dependent cellular phagocytosis (ADCP), complement dependent cytotoxicity (CDC). Cadonilimab can be used for research of metastatic cervical cancer, as well as other malignancies such as gastric cancer, GEJ adenocarcinoma and non-small cell lung cancer (NSCLC)[1][2][3][4]. Uses: Scientific research. Category: Signaling pathways. Alternative Names: AK104. CAS No. 2394841-59-7. Pack Sizes: 1 mg; 5 mg; 10 mg. Product ID: HY-P99117.
cADP-Ribose (cADPR) Ammonium Salt
Cyclic ADP-ribose ammonium is a potent calcium-mobilized second messenger synthesized from NAD+ by ADP-ribosyl cyclase. It increases cytosolic calcium mainly by Ryanodine receptor-mediated release from endoplasmic reticulum and extracellular influx through the opening of TRPM2 channels. Synonyms: cADP-Ribose Ammonium Salt; cADPR Ammonium Salt; cyclic ADP-ribose ammonium salt; Cyclic Adenosine Diphosphate Ribose ammonium salt; Cyclic adenosine 5'-diphosphate ribose ammonium salt. Grade: 90%. Molecular formula: C15H21N5O13P2.x(NH3). Mole weight: 541.30 (free base).
Cadrofloxacin
Cadrofloxacin (Caderofloxacin, CS-940) is a novel fluoroquinolone antimicrobial agent. Category: Active pharmaceutical ingredients. CAS No. 153808-85-6. Product ID: API153808856. Molecular formula: C19H20F3N3O4. Mole weight: 411.38.
CADY
CADY is a secondary amphiphilic peptide that has been shown to efficiently deliver short nucleic acids, especially siRNA, but cannot deliver any peptides, even short negatively charged peptides. Synonyms: Ac-Gly-Leu-Trp-Arg-Ala-Leu-Trp-Arg-Leu-Leu-Arg-Ser-Leu-Trp-Arg-Leu-Leu-Trp-Arg-Ala-cysteamide. Grade: >98%. Molecular formula: C132H205N41O26S. Mole weight: 2814.41.
Caenacin-1
Caenacin-1 was found in Caenorhabditis elegans. It has antifungal activity.
Caenacin-5
Caenacin-5 was found in Caenorhabditis elegans. It has antifungal activity.
Caerin 11
Caerin 11 was found in Litoria peronii. It has antibacterial activity.
Caerin-1.1
Caerin-1.1 was found in Litoria gilleni. Caerin-1.1 is an antibacterial and antiviral peptide that adopts an alpha helical conformation which can disrupt bacterial membranes. Each caerin displays a different antimicrobial specificity.
Caerin-1.10
Caerin-1.10 was found in Litoria rothii. Caerin-1.10 is an antibacterial peptide with wide spectrum of activity.
Caerin 1.11
Caerin 1.11 was produced by Litoria eucnemis. Caerin 1.11 is a cationic amphipathic alpha-helical antimicrobial peptide with weak or no activity against both Gram-positive and Gram-negative bacteria. It is weakly active against E.coli (MIC=25 μM), E.cloacae (MIC=50 μM), K.pneumoniae (MIC=25 μM), and S.haemolyticus (MIC=50 μM).
Caerin 1.12
Caerin 1.12 is originally isolated from Litoria caerulea. It has antibacterial activity.
Caerin-1.1.2
Caerin-1.1.2 has antibacterial activity. The source of Caerin-1.1.2 is Litoria caerulea. Grade: >97% by HPLC. Molecular formula: C107H178N30O26. Mole weight: 2300.74.
Caerin 1.13
Caerin 1.13 is originally isolated from Litoria caerulea. It has antibacterial activity.
Caerin 1.14
Caerin 1.14 is originally isolated from Litoria caerulea. It has antibacterial activity.
Caerin 1.15
Caerin 1.15 is originally isolated from Litoria caerulea. It has antibacterial activity.
Caerin-1.17
Caerin-1.17 was found in Litoria gracilenta. Caerin-1.17 shows significant activity against Gram-positive organisms, but is less effective against Gram-negative organisms. Grade: >95% by HPLC. Molecular formula: C124H206N32O29. Mole weight: 2609.15.
Caerin-1.18
Caerin-1.18 was found in Litoria gracilenta. It shows significant activity against Gram-positive organisms, but is less effective against Gram-negative organisms. Grade: >96% by HPLC.
Caerin-1.19
Caerin-1.19 was found in Litoria gracilenta. Caerin-1.19 shows significant activity against Gram-positive organisms, but is less effective against Gram-negative organisms.
Caerin-1.2
Caerin 1.2 was found in Litoria caerula. Caerin 1.2 is an antibacterial peptide that adopts an alpha helical conformation which can disrupt bacterial membranes. Each caerin displays a different antimicrobial specificity.
Caerin 1.20
Caerin 1.20 has antibacterial activity. The source of Caerin 1.20 is the skin secretions, hybrid between female Litoria splendida and male Litoria caerulea, Australia. Grade: >98% by HPLC. Molecular formula: C124H201N33O28. Mole weight: 2602.12.
Caerin 1.3
Caerin 1.3 was found in Litoria caerula. Caerin 1.3 is an antibacterial peptide that adopts an alpha helical conformation which can disrupt bacterial membranes. Each caerin displays a different antimicrobial specificity.
Caerin-1.4
Caerin-1.4 was found in Litoria gilleni. Caerin-1.4 is an antibacterial and antiviral peptide that adopts an alpha helical conformation which can disrupt bacterial membranes. Each caerin displays a different antimicrobial specificity.
Caerin 1.5
Caerin 1.5 was found in Litoria caerula. Caerin 1.5 is an antibacterial peptide that adopts an alpha helical conformation which can disrupt bacterial membranes. Each caerin displays a different antimicrobial specificity.
Caerin-1.6
Caerin 1.6 was found in Litoria chloris. Caerin 1.6 is an antimicrobial peptide that adopts an alpha helical conformation which can disrupt bacterial membranes.
Caerin-1.7
Caerin 1.7 was found in Litoria chloris. Caerin 1.7 is an antimicrobial peptide that adopts an alpha helical conformation which can disrupt bacterial membranes.
Caerin-1.8
Caerin 1.8 was found in Litoria chloris. Caerin 1.8 is an antimicrobial peptide that adopts an alpha helical conformation which can disrupt bacterial membranes.
Caerin 1.9
Caerin 1.9 was found in Litoria chloris. Caerin 1.9 is an antimicrobial peptide that adopts an alpha helical conformation which can disrupt bacterial membranes. Synonyms: Caerin 1.9; NH2-Gly-Leu-Phe-Gly-Val-Leu-Gly-Ser-Ile-Ala-Lys-His-Val-Leu-Pro-His-Val-Val-Pro-Val-Ile-Ala-Glu-Lys-Leu-NH2. Molecular formula: C124H206N32O28. Mole weight: 2593.2.
Caerin 21
Caerin 21 was found in Litoria peronii. It has antibacterial activity.
Caerin-2.1
Caerin 2.1 was found in Litoria splendida. Caerin 2.1 is an antimicrobial peptide that adopts an alpha helical conformation which can disrupt bacterial membranes. Each caerin displays a different antimicrobial specificity.
Caerin-2.2
Caerin 2.2 was found in Litoria gilleni. Caerin 2.2 is an antimicrobial peptide that adopts an alpha helical conformation which can disrupt bacterial membranes. Each caerin displays a different antimicrobial specificity.
Caerin-2.4
Caerin 2.4 was found in Litoria caerula. Caerin 2.4 is an antibacterial peptide that adopts an alpha helical conformation which can disrupt bacterial membranes. Each caerin displays a different antimicrobial specificity.
Caerin-2.5
Caerin 2.5 was found in Litoria gilleni. Caerin 2.5 is an antimicrobial peptide that adopts an alpha helical conformation which can disrupt bacterial membranes. Each caerin displays a different antimicrobial specificity.
Caerin 2.6
Caerin 2.6 was isolated from Hybrid between female Litoria splendida and male Litoria caerulea. It has antibacterial activity.
Caerin 2.7
Caerin 2.7 was isolated from Hybrid between female Litoria splendida and male Litoria caerulea. It has antibacterial activity.
Caerin-3.2
Caerin 3.2 was found in Litoria caerula. Caerin 3.2 is an antibacterial peptide that adopts an alpha helical conformation which can disrupt bacterial membranes. Each caerin displays a different antimicrobial specificity.
Caerin-3.3
Caerin 3.3 was found in Litoria caerula. Caerin 3.3 is an antibacterial peptide that adopts an alpha helical conformation which can disrupt bacterial membranes. Each caerin displays a different antimicrobial specificity.
Caerin-3.4
Caerin 3.4 was found in Litoria caerula. Caerin 3.4 is an antibacterial peptide that adopts an alpha helical conformation which can disrupt bacterial membranes. Each caerin displays a different antimicrobial specificity.
Caerin-3.5
Caerin-3.5 was found in Litoria gracilenta. It shows significant activity against Gram-positive organisms, but is less effective against Gram-negative organisms.
Caerin-4.1
Caerin 4.1 was found in Litoria caerula. Caerin 4.1 is an antibacterial peptide that adopts an alpha helical conformation which can disrupt bacterial membranes. Each caerin displays a different antimicrobial specificity. Grade: >97% by HPLC. Molecular formula: C104H175N29O31. Mole weight: 2327.67.
Caerin-4.2
Caerin 4.2 was found in Litoria caerula. Caerin 4.2 is an antibacterial peptide that adopts an alpha helical conformation which can disrupt bacterial membranes. Each caerin displays a different antimicrobial specificity.
Caerin-4.3
Caerin 4.3 was found in Litoria caerula. Caerin 4.3 is an antibacterial peptide that adopts an alpha helical conformation which can disrupt bacterial membranes. Each caerin displays a different antimicrobial specificity.
Caerulein
Caerulein is a decapeptide and a potent cholecystokinin receptor agonist. Caerulein is a safe and effective cholecystokinetic agent with a direct spasmogenic effect on the gallbladder muscle and bile ducts[1]. Uses: Scientific research. Category: Induced disease models products. Alternative Names: Ceruletide; Cerulein; FI-6934. CAS No. 17650-98-5. Pack Sizes: 100 μg; 500 μg; 1 mg; 5 mg; 10 mg; 25 mg; 50 mg; 100 mg. Product ID: HY-A0190.
Caerulein (Cerulein, FI-6934)
Caerulein (Ceruletide, Cerulein, FI-6934), a cholecystokinin (CCK) receptor agonist, is a safe and effective cholecystokinetic agent and small bowel and exocrine pancreatic stimulant. Caerulein (FI-6934) can be used to induce animal models of acute pancreatitis. Group: Inhibitors. Alternative Names: Ceruletide, Cerulein. CAS No. 17650-98-5. Pack Sizes: 5mg. Product ID: S9690. Formula: C58H73N13O21S2. Storage Conditions: 3 years -20°C powder.
United States; Europe
Caerulein, desulfated
Caerulein, desulfated is the desulfurated form of Caerulein. Caerulein, a CCK agonist, could be used in paralytic ileus and diagnostic aid in pancreatic malfunction. Synonyms: 4-Desulfocaerulein; H-Pyr-Gln-Asp-Tyr-Thr-Gly-Trp-Met-Asp-Phe-NH2; L-pyroglutamyl-L-glutaminyl-L-alpha-aspartyl-L-tyrosyl-L-threonyl-glycyl-L-tryptophyl-L-methionyl-L-alpha-aspartyl-L-phenylalaninamide; Pyr-QDYTGWMDF-NH2. Grade: >97% by HPLC. CAS No. 20994-83-6. Molecular formula: C58H73N13O18S. Mole weight: 1272.34.
Caerulein precursor-related fragment Ea
The source of Caerulein precursor-related fragment Ea is Rana esculenta. This peptide has no sequence similarity with antimicrobial peptides isolated from other species of ranid frogs. It potently and selectively inhibits the growth of the Gram-positive bacterium Escherichia coli (minimal inhibitory concentration (MIC<5 microM)). Synonyms: CPRF-Ea.
Caerulein precursor-related fragment Eb
The source of Caerulein precursor-related fragment Eb is Rana esculenta. This peptide has no sequence similarity with antimicrobial peptides isolated from other species of ranid frogs. It potently and selectively inhibits the growth of the Gram-positive bacterium Escherichia coli (minimal inhibitory concentration (MIC<5 microM)). Synonyms: CPRF-Eb.
Caerulein precursor-related fragment Ec
The source of Caerulein precursor-related fragment Ec is Rana esculenta. This peptide has no sequence similarity with antimicrobial peptides isolated from other species of ranid frogs. It potently and selectively inhibits the growth of the Gram-positive bacterium Escherichia coli (minimal inhibitory concentration (MIC<5 microM)). Synonyms: CPRF-Ec.
Caerulomycin
Caerulomycin is an antibiotic produced by Streptomyces caerleus and Nocadi-opsis cirriefficiens. It is mainly resistant to Gram-positive bacteria, yeast and mold (weak). Synonyms: Caerulomycin A. Grade: ≥98% by HPLC. CAS No. 21802-37-9. Molecular formula: C12H11N3O2. Mole weight: 229.23.
Caerulomycin A
Caerulomycin A is an orally active immunomodulator and antimicrobial agent. Caerulomycin A targets Smad3, STAT1 and GATA-3. Caerulomycin A downregulates GATA-3 expression, inhibits Th2 cell differentiation and Th2 cytokine production, reduces IgE levels, and alleviates pulmonary inflammatory responses and eosinophil infiltration. Caerulomycin A ameliorates collagen-induced arthritis symptoms, reduces joint inflammation and synovitis, and decreases the levels of proinflammatory cytokines in joints. Caerulomycin A inhibits the growth of some filamentous fungi, yeasts and specific bacteria. Caerulomycin A can be used in research related to arthritis and asthma[1][2][3]. Uses: Scientific research. Category: Signaling pathways. Alternative Names: Cerulomycin; Caerulomycin. CAS No. 21802-37-9. Pack Sizes: 10 mM * 1 mL in DMSO; 1 mg; 5 mg; 10 mg; 25 mg; 50 mg; 100 mg. Product ID: HY-114495.
Caesalpine A
Caesalpine A is extracted from the seeds of Caesalpinia minax. CAS No. 1616757-59-5. Molecular formula: C23H32O7. Mole weight: 420.50.
Caesalpine B
Caesalpine B is extracted from the seeds of Caesalpinia minax. Synonyms: Caesalpinin F1. CAS No. 1616757-60-8. Molecular formula: C23H30O7. Mole weight: 418.48.
Caf1-IN-1
Caf1-IN-1 (Compound 8j) is inhibitor for ribonuclease Caf1 with an IC50 of 0.59 μM. Caf1-IN-1 is also a weak inhibitor for poly(A)-specific ribonuclease (PARN) with IC50 of 23.9 μM[1]. Uses: Scientific research. Category: Signaling pathways. CAS No. 1807775-88-7. Pack Sizes: 5 mg; 10 mg. Product ID: HY-158970.
Cafedrine
Cafedrine is a medication that acts as a vasopressor and cardiac stimulant. It is used primarily to treat hypotension (low blood pressure) and shock. Cafedrine acts by stimulating the release of norepinephrine (noradrenaline) from nerve endings and also by directly stimulating alpha-adrenergic receptors in blood vessels. This results in vasoconstriction (narrowing of blood vessels), which increases blood pressure. Synonyms: (-)-Cafedrine; 7-(2-(beta-Hydroxy-alpha-methylphenethylamino)ethyl)theophylline; Brn 0583473; L-Cafedrine; 3,7-Dihydro-7-[2-[[(1S,2R)-2-hydroxy-1-methyl-2-phenylethyl]amino]ethyl]-1,3-dimethyl-1H-purine-2,6-dione; 7-[2-(β-Hydroxy-α-methylphenethylamino)ethyl]-3,7-dihydro-1,3-dimethyl-1H-purine-2,6-dione; Cafedrin. Grade: ≥95%. CAS No. 58166-83-9. Molecular formula: C18H23N5O3. Mole weight: 357.41.
Cafedrine hydrochloride
Cafedrine hydrochloride is a medication that acts as a vasopressor and cardiac stimulant. It is used primarily to treat hypotension (low blood pressure) and shock. Cafedrine acts by stimulating the release of norepinephrine (noradrenaline) from nerve endings and also by directly stimulating alpha-adrenergic receptors in blood vessels. This results in vasoconstriction (narrowing of blood vessels), which increases blood pressure. Synonyms: (-)-Cafedrine hydrochloride; 7-(2-(beta-Hydroxy-alpha-methylphenethylamino)ethyl)theophylline hydrochloride; Brn 0583473 hydrochloride; L-Cafedrine hydrochloride; 3,7-Dihydro-7-[2-[[(1S,2R)-2-hydroxy-1-methyl-2-phenylethyl]amino]ethyl]-1,3-dimethyl-1H-purine-2,6-dione hydrochloride; 7-[2-(β-Hydroxy-α-methylphenethylamino)ethyl]-3,7-dihydro-1,3-dimethyl-1H-purine-2,6-dione hydrochloride; Cafedrin hydrochloride; Cafedrine HCl; Akrinor; L-Net. Grade: ≥95%. CAS No. 3039-97-2. Molecular formula: C18H23N5O3.ClH. Mole weight: 393.87.
Cafelkibart
HY-P990908 is an CCR8-targeting IgG1κ type chimeric antibody, the recommed isotype control is Human IgG1 kappa, Isotype Control (HY-P99001)[1]. Uses: Scientific research. Category: Signaling pathways. Alternative Names: LM-108. CAS No. 2851855-89-3. Pack Sizes: 1 mg; 5 mg; 10 mg; 25 mg; 50 mg; 100 mg. Product ID: HY-P990908.
Cafenstrole
Cafenstrole. Group: Biochemicals. Grades: Highly Purified. CAS No. 125306-83-4. Pack Sizes: 5mg, 10mg, 25mg, 50mg. Molecular Formula: C16H22N4O3S. US Biological Life Sciences.
Worldwide
Cafestol
Cafestol is an orally active diterpenoid and an inhibitor of ERK2. Cafestol has elevated blood lipids, anti-inflammatory, anti-angiogenic and anti-diabetic activities. In addition, Cafestol induces tumor cell apoptosis and autophagy, which can be used in the study of cancer[1][2][3][4]. Uses: Scientific research. Category: Signaling pathways. CAS No. 469-83-0. Pack Sizes: 10 mM * 1 mL in DMSO; 1 mg; 5 mg; 10 mg; 25 mg; 50 mg; 100 mg. Product ID: HY-N6257.
This enzyme belongs to the family of oxidoreductases, specifically those acting on single donors with O2 as oxidant and incorporation of two atoms of oxygen into the substrate (oxygenases). The oxygen incorporated need not be derived from O2. The systematic name of this enzyme class is 3,4-dihydroxy-trans-cinnamate:oxygen 3,4-oxidoreductase (decyclizing). This enzyme participates in phenylpropanoid biodegradation. Group: Enzymes. Synonyms: 3,4-dihydroxy-trans-cinnamate:oxygen 3,4-oxidoreductase (decyclizing). Enzyme Commission Number: EC 1.13.11.22. CAS No. 37256-61-4. Storage: Store it at +4 ?C for short term. For long term storage, store it at -20 ?C?-80 ?C. Form: Liquid or lyophilized powder. EXWM-0541; caffeate 3,4-dioxygenase; EC 1.13.11.22; 37256-61-4; 3,4-dihydroxy-trans-cinnamate:oxygen 3,4-oxidoreductase (decyclizing). Cat No: EXWM-0541.
caffeate CoA-transferase
The enzyme, isolated from the bacterium Acetobacterium woodii, catalyses an energy-saving CoA loop for caffeate activation. In addition to caffeate, the enzyme can utilize 4-coumarate or ferulate as CoA acceptor. Group: Enzymes. Synonyms: CarA. Enzyme Commission Number: EC 2.8.3.23. Storage: Store it at +4 ?C for short term. For long term storage, store it at -20 ?C?-80 ?C. Form: Liquid or lyophilized powder. EXWM-3419; caffeate CoA-transferase; EC 2.8.3.23; CarA. Cat No: EXWM-3419.
caffeate O-methyltransferase
3,4-Dihydroxybenzaldehyde and catechol can act as acceptors, but more slowly. Group: Enzymes. Synonyms: caffeate methyltransferase; caffeate 3-O-methyltransferase; S-adenosyl-L-methionine:caffeic acid-O-methyltransferase. Enzyme Commission Number: EC 2.1.1.68. CAS No. 50936-45-3. Storage: Store it at +4 ?C for short term. For long term storage, store it at -20 ?C?-80 ?C. Form: Liquid or lyophilized powder. EXWM-1969; caffeate O-methyltransferase; EC 2.1.1.68; 50936-45-3; caffeate methyltransferase; caffeate 3-O-methyltransferase; S-adenosyl-L-methionine:caffeic acid-O-methyltransferase. Cat No: EXWM-1969.
Caffeic acid
Caffeic acid is a hydroxycinnamic acid, a naturally occurring organic compound. It is an inhibitor of both TRPV1 ion channel and 5-Lipoxygenase (5-LOX). Uses: Antioxidant activity; antineoplastic activity; anti-hiv activity; hepatotropic activity; choleretic activity. Synonyms: 3-(3,4-Dihydroxyphenyl)-2-propenoic Acid; 3,4-Dihydroxycinnamic Acid; 3,4-Dihydroxybenzeneacrylic Acid; 4-(2-Carboxyethenyl)-1,2-dihydroxybenzene; NSC 57197; NSC 623438; 3-(3,4-Dihydroxy-phenyl)-acrylic acid. Grade: ≥98%. CAS No. 331-39-5. Molecular formula: C9H8O4. Mole weight: 180.16.
Caffeic acid
Caffeic acid. CAS No. 501-16-6. Cenik is your partner of choice for specialised chemicals. We don't just provide products - we supply solutions to your technical and regulatory specifications.
Caffeic acid
Caffeic acid is an inhibitor of both TRPV1 ion channel and 5-Lipoxygenase (5-LO). Uses: Scientific research. Category: Signaling pathways. CAS No. 331-39-5. Pack Sizes: 10 mM * 1 mL in DMSO; 5 g; 10 g; 25 g. Product ID: HY-N0172.
Caffeic Acid
Caffeic Acid. Synonyms: 3,4-Dihydroxybenzeneacrylic acid, 3,4-Dihydroxycinnamic acid, 3-(3,4-Dihydroxyphenyl)-2-propenoic acid. CAS No. 331-39-5. Pack Sizes: 2, 5, 25 g in poly bottle. Product ID: CDC10-0037. Molecular formula: C9H8O4. Category: Antioxidant Cosmetic Chemicals. Product Keywords: Cosmetic Ingredients; Antioxidant Cosmetic Chemicals; Caffeic Acid; CDC10-0037; 331-39-5; C9H8O4; 3,4-Dihydroxybenzeneacrylic acid, 3,4-Dihydroxycinnamic acid, 3-(3,4-Dihydroxyphenyl)-2-propenoic acid; 206-361-2; MFCD00004392; 331-39-5. Purity: ≥98.0% (HPLC). EC Number: 206-361-2. Physical State: Powder. Solubility: Soluble in DMSO (40 mg/mL), ethanol (25 mg/mL warm), DMF (~7 mg/mL), PBS, PH 7.2 (~0.65 mg/mL), hot water, ethyl acetate, Chloroform Hexane, and methanol. Application: Caffeic acid has been used as a standard of phenolic acid in the study to determine the total phenolic acid content in vegetables after subjecting to alkaline and acid hydrolysis. It has also been used to determine its antioxidant activity by various assay methods. Boiling Point: ~416.8° C at 760 mmHg (Predicted). Melting Point: 211-213 °C (dec.) (lit.). Density: ~1.5 g/cm3 (Predicted). Product Description: Caffeic acid exists in its free and ester form. It is considered as the predominant polyphenol, contributing to the hydroxycinnamic acid content in various fruits. Coffee is one of the major source of caffeic acid.