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4-(Diphenylmethyl)-1-piperazineethanol dihydrochloride≥ 96.5% (HPLC). Group: Biochemicals. Grades: Reagent Grade. CAS No. 108983-83-1. Pack Sizes: 250mg, 1g. US Biological Life Sciences.
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4- (Diphenylphosphino) benzoic Acid
4- (Diphenylphosphino) benzoic Acid. Group: Biochemicals. Grades: Highly Purified. CAS No. 2129-31-9. Pack Sizes: 500mg, 1g, 2g, 5g, 10g. US Biological Life Sciences.
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4-(Dodecyloxy)-phenol
4-(Dodecyloxy)-phenol. Group: Biochemicals. Grades: Highly Purified. CAS No. 13037-87-1. Pack Sizes: 25g, 50g, 100g, 250g, 500g. US Biological Life Sciences.
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4-epi-Emtricitabine 4-Acetamide 5-O-Benzoyl
4-epi-Emtricitabine 4-Acetamide 5-O-Benzoyl is an protected intermediate in the synthesis of ent-Emtricitabine (E525005), a reverse transcriptase inhibitor that is effective antiviral agent against HIV, HBV, and other viruses replicating in a similar manner. Group: Biochemicals. Alternative Names: trans-N-[1-[2-[(Benzoyloxy)methyl]-1,3-oxathiolan-5-yl]-5-fluoro-1,2-dihydro-2-oxo-4-pyrimidinyl]acetamide 1,3-Oxathiolane Acetamide Derivative; N-[1-[(2R,5R)-2-[(benzoyloxy)methyl]-1,3-oxathiolan-5-yl]-5-fluoro-1,2-dihydro-2-oxo-4-pyrimidinyl]acetamide. Grades: Highly Purified. CAS No. 150796-39-7. Pack Sizes: 2.5mg. US Biological Life Sciences.
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4- (Ethoxycarbonyl) phenylboronic acid
4- (Ethoxycarbonyl) phenylboronic acid. Group: Biochemicals. Alternative Names: 4-Borono-benzoic acid 1-ethyl ester; p-Borono-benzoic acid 1-ethyl ester; 4-Carboethoxybenzene Boronic acid. Grades: Highly Purified. CAS No. 4334-88-7. Pack Sizes: 5g, 10g, 25g, 50g, 100g. Molecular Formula: C9H11BO4. US Biological Life Sciences.
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4-[Ethyl (Methyl) amino]benzaldehyde
4-[Ethyl (Methyl) amino]benzaldehyde. Group: Biochemicals. Grades: Highly Purified. CAS No. 64693-47-6. Pack Sizes: 500mg, 1g, 2g, 5g. US Biological Life Sciences.
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4-Fluoroacetophenone
4-Fluoroacetophenone is an intermediate used for the synthetic preparation of various pharmaceutical good and agricultural products. Group: Biochemicals. Alternative Names: 1-(4-Fluorophenyl)ethan-1-one; 1-(4-Fluorophenyl)ethanone; 1-Acetyl-4-fluorobenzene; 4-Acetylfluorobenzene; 4-Acetylphenyl Fluoride; 4-Fluorophenyl Methyl Ketone; 4-Fluorophenylethanal; 4'-Fluoroacetophenone; Methyl 4-Fluorophenyl Ketone; NSC 30635; p-Fluoroacetophenone; p-Fluorohypnone; p-Fluorophenyl Methyl Ketone. Grades: Highly Purified. CAS No. 403-42-9. Pack Sizes: 1g. US Biological Life Sciences.
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4-(Fmoc-2-aminoethyl)-benzoic acid
4-(Fmoc-2-aminoethyl)-benzoic acid. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 250mg, 500mg, 1g, 2g. US Biological Life Sciences.
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4-(Fmoc-2-aminoethyl)-benzoic acid 98+% (HPLC)
4-(Fmoc-2-aminoethyl)-benzoic acid 98+% (HPLC). Group: Biochemicals. Grades: Reagent Grade. Pack Sizes: 1g, 2.5g. US Biological Life Sciences.
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4-(Fmoc-4-aminophenyl)butanoic acid
4-(Fmoc-4-aminophenyl)butanoic acid. Group: Biochemicals. Grades: Highly Purified. CAS No. 186320-14-9. Pack Sizes: 250mg, 500mg, 1g. US Biological Life Sciences.
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4-(Fmoc-4-aminophenyl)butanoic acid ≥97% (HPLC)
4-(Fmoc-4-aminophenyl)butanoic acid ≥97% (HPLC). Group: Biochemicals. Grades: Reagent Grade. Pack Sizes: 100mg, 250mg, 1g. US Biological Life Sciences.
May be coupled via the hydroxy succinimido ester for haptenation of biological carriers. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 10mg. US Biological Life Sciences.
A metabolite of Aceclofenac. Group: Biochemicals. Alternative Names: 2-[ (2, 6-Dichloro-4-hydroxyphenyl) amino]benzeneacetic Acid Carboxymethyl Ester. Grades: Highly Purified. CAS No. 229308-90-1. Pack Sizes: 1mg. US Biological Life Sciences.
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4-Hydroxyacetophenone Oxime
Paracetamol (Acetaminophen) impurity. Group: Biochemicals. Alternative Names: 1-(4-Hydroxyphenyl)ethanone Oxime; 1-(4-Hydroxyphenyl)-1-ethanone Oxime; 1-(4-Hydroxyphenyl)ethanone Oxime; NSC 77904; p-Hydroxyacetophenone Oxime. Grades: Highly Purified. CAS No. 34523-34-7. Pack Sizes: 25mg. US Biological Life Sciences.
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4-Hydroxy Diclofenac
A metabolite of Diclofenac, a nonsteroidal anti-inflammatory compound an cyclooxygenase (COX) inhibitor. Group: Biochemicals. Grades: Highly Purified. CAS No. 64118-84-9. Pack Sizes: 1mg. US Biological Life Sciences.
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4-Hydroxy Diclofenac-13C6 (contain 3% unlabeled)
13C Labeled Diclofenac Sodium Salt is a known nonsteroidal anti-inflammatory compound and cyclooxygenase (COX) inhibitor. Group: Biochemicals. Alternative Names: 2-[ (2, 6-Dichloro-4-hydroxyphenyl)amino] (benzene-13C6)acetic Acid. Grades: Highly Purified. Pack Sizes: 1mg. US Biological Life Sciences.
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4-Hydroxy Flurbiprofen
A metabolite of Flurbiprofen, an anti-inflammatory used as an analgesic. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 5mg. US Biological Life Sciences.
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4-(Hydroxymethyl)-1,3-dioxolan-2-one
4-(Hydroxymethyl)-1,3-dioxolan-2-one. Group: Biochemicals. Grades: Highly Purified. CAS No. 931-40-8. Pack Sizes: 25g, 50g, 100g, 250g. Molecular Formula: C4H6O4, Molecular Weight: 118.09. US Biological Life Sciences.
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4-(Hydroxymethyl)-1H-indazole
4-(Hydroxymethyl)-1H-indazole. Group: Biochemicals. Alternative Names: 1H-Indazole-4-methanol. Grades: Highly Purified. CAS No. 709608-85-5. Pack Sizes: 50mg, 100mg, 250mg, 500mg, 1g. US Biological Life Sciences.
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4-(Hydroxymethyl)-1H-indazole ≥95% (HPLC)
4-(Hydroxymethyl)-1H-indazole ≥95% (HPLC). Group: Biochemicals. Grades: Reagent Grade. Pack Sizes: 100mg, 250mg, 1g, 2.5g. US Biological Life Sciences.
4-(Hydroxymethyl)-1H-pyrrole-3-carboxylic Acid Benzyl Ester is an impurity in the synthesis of Clavulanic Acid (C563750), an β-lactamase inhibitor that is added to amoxicillin (A634235) to increase its effectiveness. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 10mg. US Biological Life Sciences.
Intermediate of dipicolinate based chromophores. Can be used in the preparation of polyaminopolycarboxyl ate ligands, useful for their luminescence properties, and in the preparation of a lanthanide tags, designed for site-specific labeling of proteins. Group: Biochemicals. Alternative Names: 4-(Hydroxymethyl)-2,6-pyridinedicarboxylic Acid Dimethyl Ester; Dimethyl 4-(Hydroxymethyl)-2,6-pyridinedicarboxylate. Grades: Highly Purified. CAS No. 852936-60-8. Pack Sizes: 25mg. US Biological Life Sciences.
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4-(Hydroxymethyl)-2-deoxycytidine-d3
Labeled 4-(Hydroxymethyl)-2-deoxycytidine, a modified pyrimidine that is capable of producing interstrand cross-links in duplex DNA. 4-(Hydroxymethyl)-2-deoxycytidine can be analyzed to quantify DNA hydroxymethylation levels in biological samples. Group: Biochemicals. Alternative Names: 2'-deoxy-5- (hydroxymethyl) cytidine-d3; 5- (Hydroxymethyl) deoxycytidine-d3. Grades: Highly Purified. Pack Sizes: 1mg. US Biological Life Sciences.
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4-(Hydroxymethyl)-2-pyrrolidinone
4-(Hydroxymethyl)-2-pyrrolidinone. Group: Biochemicals. Alternative Names: 4-(Hydroxymethyl)-2-pyrrolidin-2-one. Grades: Highly Purified. CAS No. 64320-89-4. Pack Sizes: 250mg, 500mg, 1g, 2g, 5g. Molecular Formula: C5H9NO2. US Biological Life Sciences.
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4-(Hydroxymethyl)-3-methoxyphenoxyacetic acid
4-(Hydroxymethyl)-3-methoxyphenoxyacetic acid. Group: Biochemicals. Alternative Names: HMPA. Grades: Highly Purified. CAS No. 83590-77-6. Pack Sizes: 500mg, 1g, 2g. US Biological Life Sciences.
4-(Hydroxymethyl)-5-methyl-3-phenylisoxazole ≥97% (HPLC). Group: Biochemicals. Grades: Reagent Grade. Pack Sizes: 1g, 5g, 25g. US Biological Life Sciences.
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4-(Hydroxymethyl)benzoic Acid
4-(Hydroxymethyl)benzoic Acid. Group: Biochemicals. Alternative Names: 4-Carboxybenzyl Alcohol; p-(Hydroxymethyl)benzoic Acid; p-Carboxybenzyl Alcohol; α-Hydroxy-p-toluic Acid; α-Hydroxy-p-toluic Acid; 4-(hydroxymethyl)benzoic Acid; Eprosartan Related Compound E. Grades: Highly Purified. CAS No. 3006-96-0. Pack Sizes: 100mg. Molecular Formula: C8H8O3, Molecular Weight: 152.15. US Biological Life Sciences.
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4-(Hydroxymethyl)benzoic acid 99+% (HPLC)
4-(Hydroxymethyl)benzoic acid 99+% (HPLC). Group: Biochemicals. Grades: Reagent Grade. Pack Sizes: 1g, 5g, 25g, 100g, 250g. US Biological Life Sciences.
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4-(Hydroxymethyl)benzyl Methanethiosulfonate
Reacts specifically and rapidly with thiols to form mixed disulfides. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 10mg. US Biological Life Sciences.
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4- (Hydroxymethyl) cyclohexanone
4- (Hydroxymethyl) cyclohexanone. Group: Biochemicals. Grades: Highly Purified. CAS No. 38580-68-6. Pack Sizes: 50mg, 100mg, 250mg, 500mg, 1g. US Biological Life Sciences.
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4- (Hydroxymethyl) cyclohexanone 98+% (GC)
4- (Hydroxymethyl) cyclohexanone 98+% (GC). Group: Biochemicals. Grades: GC. Pack Sizes: 100mg, 250mg, 1g, 5g. US Biological Life Sciences.
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4- (Hydroxymethyl) imidazole HCl
4- (Hydroxymethyl) imidazole HCl. Group: Biochemicals. Alternative Names: 4-Imidazolemethanol HCl. Grades: Highly Purified. CAS No. 32673-41-9. Pack Sizes: 1g, 2g, 5g, 10g, 25g. Molecular Formula: C4H6N2O·HCl. US Biological Life Sciences.
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4- (Hydroxymethyl) phenoxyacetic acid
4- (Hydroxymethyl) phenoxyacetic acid. Group: Biochemicals. Alternative Names: HMP; HMPA Linker. Grades: Highly Purified. CAS No. 68858-21-9. Pack Sizes: 10g, 25g, 50g, 100g, 250g. US Biological Life Sciences.
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4- (Hydroxymethyl) phenoxyacetic acid 98+%
4- (Hydroxymethyl) phenoxyacetic acid 98+%. Group: Biochemicals. Grades: Reagent Grade. CAS No. 68858-21-9. Pack Sizes: 5g, 25g, 100g, 250g. US Biological Life Sciences.
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4- (Hydroxymethyl) phenylacetic acid
4- (Hydroxymethyl) phenylacetic acid. Group: Biochemicals. Grades: Highly Purified. CAS No. 73401-74-8. Pack Sizes: 2g, 5g, 10g, 25g. US Biological Life Sciences.
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4- (Hydroxymethyl) phenylacetic acid ≥97% (HPLC)
4- (Hydroxymethyl) phenylacetic acid ≥97% (HPLC). Group: Biochemicals. Grades: Reagent Grade. CAS No. 73401-74-8. Pack Sizes: 1g, 5g, 25g. US Biological Life Sciences.
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4- (Hydroxymethyl) phenylboronic acid
4- (Hydroxymethyl) phenylboronic acid. Group: Biochemicals. Alternative Names: (4-Boronophenyl)methanol. Grades: Highly Purified. CAS No. 59016-93-2. Pack Sizes: 10g, 25g, 50g, 100g. US Biological Life Sciences.
4- hydroxyphenyl acetonitri le. Group: Biochemicals. Grades: Highly Purified. CAS No. 14191-95-8. Pack Sizes: 10g, 25g, 50g, 100g. Molecular Formula: C?H?NO, Melting Point: 67-70°C. US Biological Life Sciences.
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4- hydroxyphenyl carvedilol-d3 (M4-d3)
A metabolite of Carvedilol which is a multiple-action, neurohormonal antagonist that is used in the treatment of hypertension. Group: Biochemicals. Alternative Names: M4-d3. Grades: Highly Purified. Pack Sizes: 1mg. US Biological Life Sciences.
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4- hydroxyphenyl carvedilol (M4)
A metabolite of Carvedilol which is a multiple-action, neurohormonal antagonist that is used in the treatment of hypertension. Group: Biochemicals. Alternative Names: M4. Grades: Highly Purified. Pack Sizes: 5mg. US Biological Life Sciences.
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4-Hydroxy Pyrimethanil
4-Hydroxy Pyrimethanil is a metabolite of the pesticide Pyrimethanil. Group: Biochemicals. Alternative Names: 2-(4-Hydroxyanilino)-4,6-dimethylpyrimidine; 4-[ (4, 6-Dimethyl-2-pyrimidinyl) amino]phenol. Grades: Highly Purified. CAS No. 81261-84-9. Pack Sizes: 25mg. US Biological Life Sciences.
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4-Hydroxy Pyrimethanil-d4
4-Hydroxy Pyrimethanil is a labeled metabolite of the pesticide Pyrimethanil. Group: Biochemicals. Alternative Names: 2-(4-Hydroxyanilino)-4,6-dimethylpyrimidine-d4; 4-[ (4, 6-Dimethyl-2-pyrimidinyl) amino]phenol-d4. Grades: Highly Purified. Pack Sizes: 1mg. US Biological Life Sciences.
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4-Hydroxy Toremifene (~8% E isomer)
4-Hydroxy Toremifene is a metabolite of Toremifene. Group: Biochemicals. Alternative Names: 4- [ (4Z) -3-Chloro-1- [ [4- [2- (dimethylamino) ethoxy] phenyl] phenylmethylene] propyl] phenol; 4- [ (1Z) -3-chloro-1- [ [4- [2- (dimethylamino) ethoxy] phenyl] phenylmethylene] propyl] phenol; EM 880. Grades: Highly Purified. CAS No. 352233-94-4. Pack Sizes: 1mg. US Biological Life Sciences.
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4-Hydroxy Toremifene-d6
The labeled analogue of -Hydroxy Toremifene, a metabolite of Toremifene. Group: Biochemicals. Alternative Names: 4- [ (4Z) -3-Chloro-1- [ [4- [2- [ (dimethyl-d6) amino] ethoxy] phenyl] phenylmethylene] propyl] phenol; 4- [ (1Z) -3-chloro-1- [ [4- [2- [ (dimethyl-d6) amino] ethoxy] phenyl] phenylmethylene] propyl] phenol; EM 880. Grades: Highly Purified. CAS No. 352233-94-4. Pack Sizes: 1mg. US Biological Life Sciences.
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4-Hydroxy Trazodone
The main metabolite of Trazodone-HCl. Group: Biochemicals. Alternative Names: 2-[3-[4-(3-Chloro-4-hydroxyphenyl)-1-piperazinyl]propyl]-. Grades: Highly Purified. CAS No. 53818-10-3. Pack Sizes: 1mg. US Biological Life Sciences.
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4-Hydroxy Trazodone-d6
The main labeled metabolite of Trazodone-HCl [25332-39-2]. Group: Biochemicals. Alternative Names: 2-[3-[4-(3-Chloro-4-hydroxyphenyl)-1-piperazinyl]propyl-d6]-. Grades: Highly Purified. Pack Sizes: 1mg. US Biological Life Sciences.
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4-Hydroxy Trazodone-d6 Benzyl Ether
The labeled derivative of Trazodone-HCl [25332-39-2]. Group: Biochemicals. Alternative Names: 2-[3-[4-(3-Chloro-4-benzyloxyphenyl)-1-piperazinyl]propyl-d6]-. Grades: Highly Purified. Pack Sizes: 1mg. US Biological Life Sciences.
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4-(Imidazole-1-yl)benzoic acid methyl ester
4-(Imidazole-1-yl)benzoic acid methyl ester. Group: Biochemicals. Grades: Highly Purified. CAS No. 101184-08-1. Pack Sizes: 250mg, 500mg, 1g, 2g. US Biological Life Sciences.
A sulfhydryl and carbohydrate reactive, heterobifunctional crosslinking reagent. Glycoprotein reactive. Group: Biochemicals. Alternative Names: SMCC-Hydrazide. Grades: Highly Purified. CAS No. 359436-59-2. Pack Sizes: 10mg. US Biological Life Sciences.
4-(Methoxycarbonyl)-4-[(1-oxopropyl)phenylamino]-1-piperidinepropanoic acid methyl ester hydrochloride. Group: Biochemicals. Alternative Names: Ultiva; Remifentanyl hydrochloride. Grades: Highly Purified. CAS No. 132539-07-2. Pack Sizes: 1mg, 2mg, 5mg, 10mg, 25mg. Molecular Formula: C20H29ClN2O5. US Biological Life Sciences.
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4-(Methoxy-d3)-2-nitroaniline
4-(Methoxy-d3)-2-nitroaniline. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 50mg. US Biological Life Sciences.
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4-(Methylamino)-1-(3-pyridyl)-1-butanol
An amino alcohol metabolite of nicotine, and precursor to NNK. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 10mg. US Biological Life Sciences.