A directory of where to buy chemicals in the USA, including: distributors, industrial manufacturers, bulk supplies and wholesalers of raw ingredients & finished goods.
2,3,4,5,6-Pentabromobenzyl Alcohol is used in the synthesis of precursor flame suppressing polymers. Group: Biochemicals. Grades: Highly Purified. CAS No. 79415-41-1. Pack Sizes: 100mg, 500mg. Molecular Formula: C7H3Br5O, Molecular Weight: 502.62. US Biological Life Sciences.
Worldwide
2,3,4,5,6-Pentabromophenol
2,3,4,5,6-Pentabromophenol is used in the synthesis of alkyltrichlorosilane surface modifiers for biomedical applications. Also used in the synthesis of flame retardant polymers. Group: Biochemicals. Alternative Names: Pentabromophenol; 2,3,4,5,6-Pentabromophenol; Bromophenasic Acid; Flammex 5BP; NSC 5717; Pentabromophenol; Perbromophenol. Grades: Highly Purified. CAS No. 608-71-9. Pack Sizes: 5g. US Biological Life Sciences.
Worldwide
2,3,4,5,6-Pentabromotoluene
2,3,4,5,6-Pentabromotoluene is a brominated flame retardant. It is considered as an air pollutant. Group: Biochemicals. Grades: Highly Purified. CAS No. 87-83-2. Pack Sizes: 10g, 50g. Molecular Formula: C7H3Br5. US Biological Life Sciences.
Worldwide
2,3,4,5,6-Pentabromotoluene
Pentabromotoluene is a colorless powder. Insoluble in water. (NTP, 1992). Alternative Names: Pentabromotoluene. CAS No. 87-83-2. Molecular formula: C7H3Br5. Mole weight: 486.62. Purity: 98%+. IUPAC Name: 1,2,3,4,5-Pentabromo-6-methylbenzene. SMILES: CC1=C(C(=C(C(=C1Br)Br)Br)Br)Br. InChI: InChI=1S/C7H3Br5/c1-2-3(8)5(10)7(12)6(11)4(2)9/h1H3.
2,3,4,5,6-Pentabromotoluene-13C6
2,3,4,5,6-Pentabromotoluene-13C6 is the labeled analogous of 2,3,4,5,6-Pentabromotoluene (P237880) which is a brominated flame retardant. It is considered as an air pollutant. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 1mg, 5mg. Molecular Formula: C13C6H3Br5, Molecular Weight: 492.57. US Biological Life Sciences.
Worldwide
2,3,4,5,6-Pentachloroanisole
2,3,4,5,6-Pentachloroanisole is a pesticide. One of the new POPs under the Stockholm Convention. Group: Biochemicals. Grades: Highly Purified. CAS No. 1825-21-4. Pack Sizes: 100mg, 250mg. Molecular Formula: C7H3Cl5O. US Biological Life Sciences.
Worldwide
2,3,4,5,6-Pentachlorobenzoic acid
2,3,4,5,6-Pentachlorobenzoic acid. Alternative Names: pentachloro-benzoicaci;pentachlorobenzoicacid;perchlorobenzoicacid. CAS No. 1012-84-6. Product ID: ACM1012846. Molecular formula: C7HO2Cl5. Mole weight: 294.34664. Alfa Chemistry - ISO 9001:32057 Certified.
2,3,4,5,6-Pentafluoro(allylbenzene)
2,3,4,5,6-Pentafluoro(allylbenzene). Alternative Names: Allylpentafluorobenzene. CAS No. 1736-60-3. Purity: 98.0%(GC). Product ID: ACM-MO-1736603A. Molecular formula: C9H5F5. Mole weight: 208.13 g/mol. Alfa Chemistry - ISO 9001:32057 Certified.
2,3,4,5,6-Pentafluorobenzyl bromide
2,3,4,5,6-Pentafluorobenzyl bromide. CAS No. 1765-40-8. Product ID: ACM1765408. Molecular formula: C9H11NO. Mole weight: 260.99. Alfa Chemistry - ISO 9001:32057 Certified.
2,3,4,5,6-Pentafluoro-L-phenylalanine is used in the studies of fluorine containing dipeptides used in the diagnosis of cancer and other related conditions. Alternative Names: H-Phe(F5)-OH; (S)-2-Amino-3-(perfluorophenyl)propanoic acid. Grades: ≥ 98%. CAS No. 34702-59-5. Molecular formula: C9H6F5NO2. Mole weight: 255.15.
2,3,4,5,6-Pentafluorostyrene
Copolymers of 2,3,4,5,6-Pentafluorostyrene and N-phenylmaleimide were synthesized by free radical polymerization. Diblock copolymers of D,L-lactide and pentafluorostyrene with narrow molecular weight distributions have been reported. Fluorinated and photocrosslinkable liquid prepolymers have been synthesized for flexible optical waveguides, the prepolymers are photocurable to afford flexible and transparent films. Phase copolymers consisting of poly(methylmethacrylate) (p-MMA)/n-butylacrylate (nBA) and poly(nBA) / pentafluorostyrene (p-PFS)have been prepared. Alternative Names: PENTAFLUOROSTYRENE; 2',3',4',5',6'-PENTAFLUOROSTYRENE; 2,3,4,5,6-PENTAFLUOROSTYRENE; 2,3,4,5,6-PENTAFLUOROVINYLBENZENE; 1,2,3,4,5-Pentafluoro-6-vinylbenzene; Styrene, 2,3,4,5,6-pentafluoro-; Vinylpentafluorobenzene; 2,3,4,5,6-PENTAFLUOROSTYRENE, 98%, STAB. WITH. Grades: 97.0(GC). CAS No. 653-34-9. Molecular formula: C8H3F5. Mole weight: 194.1014.
2,3,4,5,6-Pentafluorostyrene, ≥98%,stabilized with TBC
2,3,4,5,6-Pentafluorostyrene, ≥98%,stabilized with TBC. CAS No. 653-34-9. Molecular formula: C8H3F5. Mole weight: 194.1g/mol. IUPAC Name: 1-ethenyl-2,3,4,5,6-pentafluorobenzene. SMILES: C=CC1=C(C(=C(C(=C1F)F)F)F)F. InChI: InChI=1S/C8H3F5/c1-2-3-4(9)6(11)8(13)7(12)5(3)10/h2H,1H2.
2,3,4,5,6-Pentafluorostyrene (stabilized with TBC)
2,3,4,5,6-Pentafluorostyrene (stabilized with TBC). CAS No. 653-34-9. Molecular formula: C8H3F5. Mole weight: 194.1g/mol. IUPAC Name: 1-ethenyl-2,3,4,5,6-pentafluorobenzene. SMILES: C=CC1=C(C(=C(C(=C1F)F)F)F)F. InChI: InChI=1S/C8H3F5/c1-2-3-4(9)6(11)8(13)7(12)5(3)10/h2H,1H2.
2,3',4,5',6-Pentakis(dihydrogen phosphate)[1,1'-biphenyl]-2,3',4,5',6-pentol. Group: Biochemicals. Grades: Highly Purified. CAS No. 943545-68-4. Pack Sizes: 5mg. Molecular Formula: C12H15O20P5, Molecular Weight: 634.1. US Biological Life Sciences.
Worldwide
2,3,4,5,6-Penta-O-acetyl-D-galactononitrile
2,3,4,5,6-Penta-O-acetyl-D-galactononitrile, a chemical compound of immense importance in the field of biomedicine, stands as a pivotal entity in the pursuit of academic excellence. Within the realm of scientific exploration, it reigns supreme, offering itself as a beacon of hope and innovation. It finds its purpose in the realms of medicinal research, dedicated to unlocking the secrets of targeted malady combatants. CAS No. 35439-42-0. Molecular formula: C16H21NO10. Mole weight: 387.34.
2,3,4,5-Benzazepin-2-one 7-oxoacetic Acid
2,3,4,5-Benzazepin-2-one 7-oxoacetic Acid is a derivative of 4,5-Dihydro-1-benzoazepin-2(3H)-one (D448475), which is used as a reactant in the preparation of tetracyclic quinoxaline butyrophenones for the treatment of neuropsychiatric and neurological disorders. Group: Biochemicals. Grades: Highly Purified. CAS No. 1094543-96-0. Pack Sizes: 10mg, 100mg. Molecular Formula: C12H11NO4, Molecular Weight: 233.22. US Biological Life Sciences.
Worldwide
2,3,4,5-Dianhydro Rosuvastatin Methyl Ester
2,3,4,5-Dianhydro Rosuvastatin Methyl Ester is an impurity of Rosuvastatin (R700500, Ca Salt); a selective, competitive HMG-CoA reductase inhibitor and antilipemic agent. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 1mg, 2.5mg. Molecular Formula: C23H26FN3O4S, Molecular Weight: 459.53. US Biological Life Sciences.
2,3:4,5-Di-O-isopropylidene-1,6-di-O-benzyl-D-myo-inositol is a pivotal substance widely employed in the biomedical sector, showcasing remarkable antiviral potential against diverse viral strains. It can be used in the research of combating influenza, HIV, and herpesvirus infections. This particular product exhibits its mechanism of action via viral replication inhibition and fortifying immune responses. Molecular formula: C26H32O6. Mole weight: 440.53.
2,3:4,5-Di-O-isopropylidene-1-O-methacryloyl-b-D-fructopyranose is a novel compound with potential anti-diabetic properties. This product selectively reduces glucose levels, potentially beneficial for the research of type-2 diabetes. CAS No. 122444-90-0. Molecular formula: C16H24O7. Mole weight: 328.36.
2,3:4,5-Di-O-isopropylidene-6-oxo-D-talonic acid methyl ester is a vital ingredient in the biomedicine industry. This compound is commonly used in the formulation of medications to treat a variety of diseases. It has demonstrated remarkable effectiveness in managing diverse conditions such as cancer, diabetes, and cardiovascular disorders.
2,3:4,5-Di-O-isopropylidene-b-D-fructopyranose sulfonyl chloride is a highly intricate and multifaceted chemical, holding immense significance in the realm of biomedicine. This compound finds extensive utility as a reagent and manifests its indispensability in the synthesis of diverse pharmaceutical compounds and medicinal agents. By virtue of its unique sulfonyl chloride component, this compound assumes paramount importance in the formulation of tailored medications, thereby augmenting their efficacy in combating a broad spectrum of afflictions. Alternative Names: β-D-Fructopyranose, 2,3:4,5-bis-O-(1-methylethylidene)-, 1-chlorosulfate; β-D-Fructopyranose, 2,3:4,5-bis-O-(1-methylethylidene)-, chlorosulfate; 2,3:4,5-Bis-O-(1-methylethylidene)-β-D-fructopyranose sulfonyl chloride. CAS No. 150609-95-3. Molecular formula: C12H19ClO8S. Mole weight: 358.79.
2,3:4,5-Di-O-isopropylidene- β-D-fructopyranose-O-(L-threonine) is an intermediate in the synthesis of N-(1-Deoxy-D-fructos-1-yl)?-L-threonine (D235910). N-(1-Deoxy-D-fructos-1-yl)?-L-threonine is an amadori compound formed in food. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 2.5mg, 5mg. Molecular Formula: C16H27NO8. US Biological Life Sciences.
2,3:4,5-Di-O-isopropylidene-β-D-fructopyranose-O-(L-threonine) is an intermediate in the synthesis of N-(1-Deoxy-D-fructos-1-yl)-L-threonine. N-(1-Deoxy-D-fructos-1-yl)-L-threonine is an amadori compound formed in food. Alternative Names: (2S,3R)-3-Hydroxy-2-((((3aS,5aR,8aR,8bS)-2,2,7,7-tetramethyltetrahydro-3aH-bis([1,3]dioxolo)[4,5-b:4',5'-d]pyran-3a-yl)methyl)amino)butanoic Acid. Molecular formula: C16H27NO8. Mole weight: 361.39.
2,3:4,5-Di-O-isopropylidene-β-D-fructopyranose Val-His is an intermediate in the synthesis of Fructose Val-His, a substrate in the kinetic reaction of fructosylpeptide oxidases of Coniochaeta and Eupenicillium terrenum with glycated protein molecules. Molecular formula: C23H36N4O8. Mole weight: 496.55.
2,3:4,5-Di-O-isopropylidene-D-arabinose
2,3:4,5-Di-O-isopropylidene-D-arabinose, a compound of utmost importance in the biomedical sector, exhibits exceptional potential for advancing antiviral therapeutics and diabetes treatments. Remarkably, it demonstrates considerable efficacy in impeding viral duplication and ameliorating blood glucose profiles. Renowned for its unparalleled purity and ready availability, this compound serves as an invaluable asset to both scientific researchers and pharmaceutical enterprises in their tireless endeavors to combat viral pathogens and effectively address diabetes. Alternative Names: (4S)-2,2-Dimethyl-5β-[(4R)-2,2-dimethyl-1,3-dioxolane-4β-yl]-1,3-dioxolane-4α-carbaldehyde; (4R,4'R,5S)-2,2,2',2'-Tetramethyl-[4,4'-bi(1,3-dioxolane)]-5-carbaldehyde; D-Arabinose, 2,3:4,5-bis-O-(1-methylethylidene)-; 2-O,3-O:4-O,5-O-Diisopropylidene-D-arabino-pentose; 2,3:4,5-Diisopropylidene-D-arabinose. Grades: ≥95%. CAS No. 13039-93-5. Molecular formula: C11H18O5. Mole weight: 230.26.
2,3:4,5-Di-O-isopropylidene-D-arabitol
2,3:4,5-Di-O-isopropylidene-D-arabitol, a pivotal compound in the biomedical industry, holds immense significance in the realm of drug synthesis and therapy development for a plethora of diseases. The multifaceted chemical attributes possessed by this compound render it an impeccable contender for drug formulation and advancement. Alternative Names: D-Arabinitol diacetonide. CAS No. 19139-74-3. Molecular formula: C11H20O5. Mole weight: 232.27.
2,3:4,5-Di-O-isopropylidene-D-gulonic acid methyl ester is a pharmaceutical intermediate that can play a vital role in drug synthesis. Notably, it is often used in the research and development of certain antiviral drugs targeting diseases such as influenza and Hepatitis C. Alternative Names: D-Gulonic acid, 2,3:4,5-bis-O-(1-methylethylidene)-, methyl ester; Methyl 2,3:4,5-bis-O-(1-methylethylidene)-D-gulonate. CAS No. 1714993-08-4. Molecular formula: C13H22O7. Mole weight: 290.31.
2,3:4,5-Di-O-Isopropylidene-D-gulose
2,3:4,5-Di-O-isopropylidene-D-gulose is an essential compound in the biomedical industry. It is used in the synthesis of various drugs targeting diseases such as diabetes and cancer. With its unique structure and properties, this compound plays a crucial role in the development of innovative pharmaceutical treatments. Alternative Names: D-Gulose, 2,3:4,5-bis-O-(1-methylethylidene)-; 2,3:4,5-Bis-O-(1-methylethylidene)-D-gulose. CAS No. 1714994-91-8. Molecular formula: C12H20O6. Mole weight: 260.29.
2,3:4,5-Di-O-Isopropylidene-D-idonic acid methyl ester, a potent biomedical compound, demonstrates significant therapeutic potential. By specifically aiming at abnormal carbohydrate metabolism, particularly in cases of diabetes, this compound offers effective disease management. Acting as a metabolic regulator, it aids in glucose level control within the body. Its extensive utilization within the biomedicine industry highlights its profound ability to facilitate the development of innovative drugs targeting diabetes and associated illnesses. Alternative Names: methyl (4R,4'S,5S,5'R)-5'-(hydroxymethyl)-2,2,2',2'-tetramethyl-[4,4'-bi(1,3-dioxolane)]-5-carboxylate. Molecular formula: C13H22O7. Mole weight: 290.31.
2,3:4,5-Di-O-isopropylidene-D-talitol
2,3:4,5-Di-O-isopropylidene-D-talitol, an essential biomedicine, is specifically employed in the therapeutic management of glycogen storage diseases (GSDs). Its pivotal role lies in serving as a proficient stabilizer for enzymes intricately associated with glycogen metabolism, thereby facilitating the maintenance of glucose homeostasis. By facilitating the normative breakdown of glycogen, fortifying energy production, and averting metabolic complexities, this product impeccably assists in the effective management of GSDs. Alternative Names: 2,3:4,5-Bis-O-(1-methylethylidene)-D-talitol. Molecular formula: C12H22O6. Mole weight: 262.30.
2,3:4,5-Di-O-isopropylidene-D-talonic acid methyl ester is a key component extensively utilized in the biomedical industry. With its potent pharmacological properties, this compound has demonstrated significant potential in the treatment of cancer, particularly in targeting malignant cells and inhibiting tumor growth. Its structural attributes allow for effective delivery and precise action, assisting in the development of promising anticancer therapies. Alternative Names: methyl (4S,4'S,5S,5'R)-5'-(hydroxymethyl)-2,2,2',2'-tetramethyl-[4,4'-bi(1,3-dioxolane)]-5-carboxylate. Molecular formula: C13H22O7. Mole weight: 290.31.
2,3:4,5-Di-O-isopropylidene-L-arabitol
2,3:4,5-Di-O-isopropylidene-L-arabitol is a highly regarded intermediate employed in the biomedical sector. It can be used in the research of pharmacological interventions targeting pathologies, encompassing cancer, diabetes, and cardiovascular afflictions. CAS No. 84709-35-3. Molecular formula: C11H20O5. Mole weight: 232.27.
2,3:4,5-Di-O-isopropylidene-N2-[(phenylmethoxy)carbonyl]-β-D-fructopyranosyl-L-lysine tert-Butyl Ester is an intermediate in the synthesis of ε-N-Deoxyfructosyllysine Dihydrochloride, a sugar-amino acid with potential antioxidant and anti-inflammatory properties. Molecular formula: C30H46N2O9. Mole weight: 578.69.
2,3,4,5-Tetrabromobenzoic Acid is an in vitro metabolite of the flame retardant 2-Ethylhexyl 2,3,4,5-Tetrabromobenzoate (E918780) in human and rat tissues. Group: Biochemicals. Grades: Highly Purified. CAS No. 27581-13-1. Pack Sizes: 5mg, 10mg. Molecular Formula: C7H2Br4O2. US Biological Life Sciences.
Worldwide
2,3,4,5-Tetrabromobenzoic Acid-13C6
2,3,4,5-Tetrabromobenzoic Acid-13C6 is an isotope labelled analog of 2,3,4,5-Tetrabromobenzoic Acid. 2,3,4,5-Tetrabromobenzoic Acid is an in vitro metabolite of the flame retardant 2-Ethylhexyl 2,3,4,5-Tetrabromobenzoate (E918780) in human and rat tissues. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 250ug, 2.5mg. Molecular Formula: C13C6H2Br4O2, Molecular Weight: 443.66. US Biological Life Sciences.
Worldwide
2,3,4,5-Tetrachloro-6-fluoropyridine
2,3,4,5-Tetrachloro-6-fluoropyridine. Alternative Names: 2,3,4,5-Tetrachloro-6-fluoropyridine;3,4,5,6-Tetrachloro-2-fluoropyridine. CAS No. 17717-16-7. Purity: 96%. Product ID: ACM17717167. Molecular formula: C5Cl4FN. Mole weight: 234.870603 [g/mol]. IUPAC Name: 2,3,4,5-tetrachloro-6-fluoropyridine. Alfa Chemistry - ISO 9001:32057 Certified.
2,3,4,5-tetrachloro-6-methoxy-phenol
2,3,4,5-tetrachloro-6-methoxy-phenol. CAS No. 97331-56-1. Molecular formula: C7H4Cl4O2. Mole weight: 261.9175.
2,3,4,5-Tetrachlorotoluene
2,3,4,5-Tetrachlorotoluene is a tetra-chlorinated derivative of toluene that is often used as a reference standard. Group: Biochemicals. Grades: Highly Purified. CAS No. 1006-32-2. Pack Sizes: 10mg, 25mg. Molecular Formula: C7H4Cl4. US Biological Life Sciences.
Worldwide
2,3,4,5-Tetradehydro alfuzosin hydrochloride
2,3,4,5-Tetradehydro alfuzosin hydrochloride. Group: Biochemicals. Alternative Names: N-[3-[ (4-Amino-6, 7-dimethoxy-2-quinazolinyl) methylamino]propyl]-2-furancarboxamide hydrochloride; Alfuzosin impurity A. Grades: Highly Purified. CAS No. 98902-29-5. Pack Sizes: 10mg, 25mg, 50mg, 100mg, 250mg. Molecular Formula: C19H24ClN5O4. US Biological Life Sciences.
2, 3, 4, 5-Tetrafluoro-α - [ [ [ (1S) -2-hydroxy-1-methylethyl] amino] methylene] - β-oxo-benzenepropanoic Acid Ethyl Ester is used in the synthesis of the drug Levofloxacin (L360000), which is a S-(-) form of Ofloxacin (O245750), an antibiotic used against gram-negative organisms. Group: Biochemicals. Grades: Highly Purified. CAS No. 110548-02-2. Pack Sizes: 100mg, 500mg. Molecular Formula: C15H15F4NO4, Molecular Weight: 349.28. US Biological Life Sciences.
2, 3, 4, 5-Tetrafluoro-α - [ [ [ (1S) -2-hydroxy-1-methylethyl] amino] methylene] - β-oxo-benzenepropanoic Acid Methyl Ester is used in the synthesis of the drug Levofloxacin (L360000), which is a S-(-) form of Ofloxacin (O245750), an antibiotic used against gram-negative organisms. Group: Biochemicals. Grades: Highly Purified. CAS No. 1213269-48-7. Pack Sizes: 100mg, 500mg. Molecular Formula: C14H13F4NO4, Molecular Weight: 335.25. US Biological Life Sciences.
2,3,4,5-Tetrafluorobenzoic acid. Alternative Names: 2,3,4,5-tetrafluoro benzoic acid;F0293-0125;2-H-C6F4COOH;2,3,3,4,5,5,6-HEPTACHLOROBIPHENYL;2,3,4,5-Tetrafluorobenzoic Acid. CAS No. 1201-31-6. Product ID: ACM1201316-2. Molecular formula: C7H2F4O2. Alfa Chemistry - ISO 9001:32057 Certified.
2,3,4,5-Tetrafluorobenzoic acid
Tetrafluorobenzoic acid. CAS No. 1201-31-6.
Pennsylvania PA
2,3,4,5-Tetrafluorobenzoic Acid
2,3,4,5-Tetrafluorobenzoic Acid is used in the synthesis of diterpenoid analogs as antitumor compounds. Also used in the synthesis of novel quinoline lactones. Group: Biochemicals. Alternative Names: 2,3,4,5-Tetrafluorobenzoic Acid; 3,4,5,6-Tetrafluorobenzoic Acid; NSC 168728. Grades: Highly Purified. CAS No. 1201-31-6. Pack Sizes: 5g. US Biological Life Sciences.
Worldwide
2,3,4,5-Tetrafluorobenzoic acid ethyl ester
2,3,4,5-Tetrafluorobenzoic acid ethyl ester. Group: Biochemicals. Grades: Highly Purified. CAS No. 122894-73-9. Pack Sizes: 25g, 50g, 100g. US Biological Life Sciences.
Worldwide
2,3,4,5-Tetrafluorobenzotrifluoride
2,3,4,5-Tetrafluorobenzotrifluoride. Alternative Names: 2,3,4,5-TETRAFLUOROBENZOTRIFLUORIDE; ALPHA,ALPHA,ALPHA,2,3,4,5-HEPTAFLUOROTOLUENE; ALPHA,ALPHA,ALPHA,2,3,4,5-HEPTAFLUORTOLUOL; à,à,à,2,3,4,5-heptafluorotoluene; 2,3,4,5-Tetrafluorobenzotrifluoride 99%; 2,3,4,5-Tetrafluorobenzotrifluoride99%; 2,3,4,5-Tetrafluor. CAS No. 654-53-5. Molecular formula: C7HF7. Mole weight: 218.07.
2,3,4,5-Tetrahydro-1,5-methano-1H-3-benzazepine-7,8-diamine is one of Varenicline impurities. Varenicline is a nicotinic receptor partial agonist. It's a prescription drug used to treat cigarette addiction. Alternative Names: 1,2,3,4-tetrahydro-1,5-Methano-1H-3-benzazepine-7,8-diamine; 2,3,4,5-Tetrahydro-1,5-methano-1H-3-benzazepine-7,8-diamine. Grades: > 98%. CAS No. 808120-35-6. Molecular formula: C11H15N3. Mole weight: 189.26.
2,3,4,5-Tetrahydro-1,5-methano-1H-3-benzazepine-7,8-diamine is a diamino deprotected impurity used for the preparation of varenicline. Group: Biochemicals. Grades: Highly Purified. CAS No. 808120-35-6. Pack Sizes: 25mg, 50mg. Molecular Formula: C11H15N3, Molecular Weight: 189.26. US Biological Life Sciences.