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4-Pregnen-17a,20b-diol-3-one (17a, 20b-Dihydroxy-4-pregnen-3-one ). Group: Biochemicals. Alternative Names: 17a, 20b-Dihydroxy-4-pregnen-3-one. Grades: Highly Purified. Pack Sizes: 5mg. US Biological Life Sciences.
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4-Pregnen-20-alpha-ol-3-one
4-Pregnen-20-alpha-ol-3-one. Group: Biochemicals. Grades: Highly Purified. CAS No. 145-14-2. Pack Sizes: 5mg, 10mg, 25mg, 50mg, 100mg. Molecular Formula: C21H32O2. US Biological Life Sciences.
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4-Propoxylmandelic acid
4-Propoxylmandelic acid. Group: Biochemicals. Grades: Highly Purified. CAS No. 79694-16-9. Pack Sizes: 250mg, 500mg, 1g, 2g, 5g. Molecular Formula: C11H14O4. US Biological Life Sciences.
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4-Propylbenzoic acid 99+% (GC)
4-Propylbenzoic acid 99+% (GC). Group: Biochemicals. Grades: GC. Pack Sizes: 5g, 25g, 100g, 250g. US Biological Life Sciences.
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4-propyl cyclohexanecarboxylic acid
4-propyl cyclohexanecarboxylic acid. Group: Biochemicals. Grades: Highly Purified. CAS No. 70928-91-5. Pack Sizes: 2g, 5g, 10g, 25g. US Biological Life Sciences.
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4-Pyrazol-1-yl-phenylboronic acid
4-Pyrazol-1-yl-phenylboronic acid. Group: Biochemicals. Alternative Names: 4-(1H-Pyrazol-1-yl)phenylboronic acid. Grades: Highly Purified. CAS No. 891270-35-2. Pack Sizes: 100mg, 250mg, 500mg, 1g, 2g. Molecular Formula: C9H9BN2O2. US Biological Life Sciences.
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4-Pyrazol-1-yl-phenylboronic acid ≥95% (NMR)
4-Pyrazol-1-yl-phenylboronic acid ≥95% (NMR). Group: Biochemicals. Grades: Reagent Grade. Pack Sizes: 250mg, 1g, 2.5g. US Biological Life Sciences.
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4-Pyrazoleboronic acid pinacol ester
4-Pyrazoleboronic acid pinacol ester. Group: Biochemicals. Grades: Highly Purified. CAS No. 269410-08-4. Pack Sizes: 2g, 5g, 10g, 25g, 50g. Molecular Formula: C9H15BN2O2. US Biological Life Sciences.
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4-Pyrazolecarboxylic acid
4-Pyrazolecarboxylic acid. Group: Biochemicals. Alternative Names: 1H-Pyrazole-4-carboxylic acid; 4-Carboxypyrazole; Pyrazole-4-carboxylic acid. Grades: Highly Purified. CAS No. 37718-11-9. Pack Sizes: 5g, 10g, 25g, 50g, 100g. Molecular Formula: C4H4N2O2. US Biological Life Sciences.
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4-Pyrazolecarboxylic acid methyl ester
4-Pyrazolecarboxylic acid methyl ester. Group: Biochemicals. Alternative Names: 1H-Pyrazole-3-carboxylic acid methyl ester; Methyl 1H-pyrazole-3-carboxylate; Methyl 3-pyrazolecarboxylate. Grades: Highly Purified. CAS No. 15366-34-4. Pack Sizes: 1g, 2g, 5g, 10g, 25g. Molecular Formula: C5H6N2O2. US Biological Life Sciences.
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4-Pyridineacetonitrile hydrochloride
4-Pyridineacetonitrile hydrochloride. Group: Biochemicals. Alternative Names: 4-Cyanomethylpyridine hydrochloride; 4-Pyridylacetonitrile hydrochloride. Grades: Highly Purified. CAS No. 92333-25-0. Pack Sizes: 1g, 2g, 5g, 10g, 25g. Molecular Formula: C7H7ClN2. US Biological Life Sciences.
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4-Pyridinealdoxime
An intermediate for bis (hydroxyimino methyl pyridinium) butenes as reactivators of chlorpyrifos-inhibited acetylcholinesterase. Group: Biochemicals. Alternative Names: Isonicotinaldehyde Oxime. Grades: Highly Purified. CAS No. 696-54-8. Pack Sizes: 1g. US Biological Life Sciences.
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4-Pyridinecarboxaldehyde
4-Pyridinecarboxalde hyde. Group: Biochemicals. Grades: Highly Purified. CAS No. 872-85-5. Pack Sizes: 25g, 50g, 100g, 250g, 500g. Molecular Formula: C6H5NO. US Biological Life Sciences.
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4-Pyridinecarboxaldehyde 99+% (GC)
4-Pyridinecarboxaldehyde 99+% (GC). Group: Biochemicals. Grades: GC. CAS No. 872-85-5. Pack Sizes: 5g, 25g, 100g, 250g, 1Kg. US Biological Life Sciences.
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4-Pyridoxic Acid
4-Pyridoxic Acid, a catabolite of vitamin B6, is a water-soluble B-group vitamin that can be used as a urinary diagnostic biomarker for determining the nutritional status of these vitamins. Group: Biochemicals. Alternative Names: 3-Hydroxy-5-(hydroxymethyl)-2-methyl-4-pyridinecarboxylic Acid, 3-Hydroxy-5-(hydroxymethyl)-2-methyl-isonicotinic Acid, 2-Methyl-3-hydroxy-4-carboxy-5-hydroxymethylpyridine, 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinic Acid, Pyridoxic Acid, 4-Pyridoxinecarboxylic Acid, 4-Pyridoxinic Acid, 4-Pyridoxylic Acid, NSC 41814. Grades: Highly Purified. CAS No. 82-82-6. Pack Sizes: 100mg, 250mg, 1g. Molecular Formula: C8H9NO4. US Biological Life Sciences.
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4-Pyridylboronic acid
Used in the palladium-catalyzed Suzuki coupling reactions. Group: Biochemicals. Alternative Names: B-4-Pyridinylboronic Acid; 4-Pyridinylboronic Acid; 4-Pyridylboronic Acid. Grades: Highly Purified. CAS No. 1692-15-5. Pack Sizes: 5g, 25g. Molecular Formula: C?H?BNO?, Molecular Weight: 122.92. US Biological Life Sciences.
4'-tert-Butyl-2',6'-dimethyl-3',5'-dinitroacetophenone. Group: Biochemicals. Alternative Names: 1-Acetyl-4-(tert-butyl)-2,6-dimethyl-3,5-dinitrobenzene. Grades: Highly Purified. CAS No. 81-14-1. Pack Sizes: 10g, 25g. US Biological Life Sciences.
4-tert-Butyl-2,6-dimethyl-3-hydroxyphenylacetic Acid. Group: Biochemicals. Alternative Names: 4-(1,1-Dimethylethyl)-3-hydroxy-2,6-dimethylbenzeneacetic Acid. Grades: Highly Purified. CAS No. 55699-12-2. Pack Sizes: 100mg. Molecular Formula: C14H20O3, Molecular Weight: 236.31. US Biological Life Sciences.
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4-tert-Butyl-2,6-dimethylphenylsulfur Trifluoride
4-tert-Butyl-2,6-dimethylphenylsulfur Trifluoride. Group: Biochemicals. Alternative Names: FLUOLEAD. Grades: Highly Purified. CAS No. 947725-04-4. Pack Sizes: 1g, 2g, 5g, 10g, 25g. US Biological Life Sciences.
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4-tert-Butylacetophenone
4-tert-Butylacetophenone is an impurity arising in the synthesis of Ebastine. Ebastine impurity B. Group: Biochemicals. Alternative Names: 1-[4- (1, 1-Dimethylethyl) phenyl]ethanone; 1-(4-tert-Butylphenyl)ethanone; 4-tert-Butylphenyl Methyl Ketone; NSC 826. Grades: Highly Purified. CAS No. 943-27-1. Pack Sizes: 2.5g. US Biological Life Sciences.
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4-tert-Butylbenzaldehyde
4-tert-Butylbenzaldehyde. Group: Biochemicals. Grades: Highly Purified. CAS No. 939-97-9. Pack Sizes: 100g, 250g. US Biological Life Sciences.
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4-tert-Butylbenzaldehyde 98+% (TLC)
4-tert-Butylbenzaldehyde 98+% (TLC). Group: Biochemicals. Grades: Reagent Grade. CAS No. 939-97-9. Pack Sizes: 5g, 25g, 100g, 250g, 1Kg. US Biological Life Sciences.
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4-tert-Butyl benzoic acid
4-tert-Butyl benzoic acid. Group: Biochemicals. Grades: Highly Purified. CAS No. 98-73-7. Pack Sizes: 1kg, 2kg, 5kg, 10kg, 25kg. Molecular Formula: C11H14O2. US Biological Life Sciences.
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4-tert-Butylbenzoic acid methyl ester
4-tert-Butylbenzoic acid methyl ester. Group: Biochemicals. Alternative Names: p-tert-Butyl benzoic acid methyl ester. Grades: Highly Purified. CAS No. 26537-19-9. Pack Sizes: 500g, 1kg. US Biological Life Sciences.
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4-tert-Butylbenzoic acid methyl ester 99+% (GC)
4-tert-Butylbenzoic acid methyl ester 99+% (GC). Group: Biochemicals. Grades: GC. CAS No. 26537-19-9. Pack Sizes: 25g, 100g, 250g, 1Kg, 5Kg. US Biological Life Sciences.
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4-tert-Butylbenzoyl chloride
4-tert-Butylbenzoyl chloride. Group: Biochemicals. Grades: Highly Purified. CAS No. 1710-98-1. Pack Sizes: 100g, 250g, 500g, 1kg, 2kg. Molecular Formula: C11H13ClO. US Biological Life Sciences.
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4-tert-Butylbenzylamine
4-tert-Butylbenzylamine. Group: Biochemicals. Grades: Highly Purified. CAS No. 39895-55-1. Pack Sizes: 100g, 250g, 500g, 1kg, 2kg. US Biological Life Sciences.
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4-tert-Butylbenzylamine hydrochloride
4-tert-Butylbenzylamine hydrochloride. Group: Biochemicals. Grades: Reagent Grade. CAS No. 39895-55-1. Pack Sizes: 1g, 5g, 25g. US Biological Life Sciences.
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4-tert-Butylbenzyl bromide
4-tert-Butylbenzyl bromide. Group: Biochemicals. Alternative Names: 1-Bromomethyl-4-tert-butylbenzene; a-Bromo-4-(tert-butyl)toluene. Grades: Highly Purified. CAS No. 18880-00-7. Pack Sizes: 10g, 25g, 50g, 100g. Molecular Formula: (CH3)3CC6H4CH2Br. US Biological Life Sciences.
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4-tert-Butylbenzyl chloride
4-tert-Butylbenzyl chloride. Group: Biochemicals. Grades: Highly Purified. CAS No. 19692-45-6. Pack Sizes: 2g, 5g, 10g, 25g, 50g. Molecular Formula: C11H15CI. US Biological Life Sciences.
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4-tert-Butylcalix[4]arene
4-tert-Butylcalix[4]arene. Group: Biochemicals. Grades: Highly Purified. CAS No. 60705-62-6. Pack Sizes: 10g, 25g, 50g, 100g, 250g. Molecular Formula: C44H56O4. US Biological Life Sciences.
4-tert-Butyldimethylsilyl Atorvastatin Lactone is a derivative of Atorvastatin Lactone (A791780), used in the preparation of N-substituted pyrrole derivatives as intermediates in the synthesis of atorvastatin. Group: Biochemicals. Alternative Names: 1- [2- [ (2R, 4R) -4- [ [ (1, 1-Dimethylethyl) dimethylsilyl] oxy] tetrahydro-6-oxo-2H-pyran-2-yl] ethyl] -5- (4-fluorophenyl) -2- (1-methylethyl) -N, 4-diphenyl-1H-pyrrole-3-carboxamide. Grades: Highly Purified. CAS No. 842162-99-6. Pack Sizes: 25mg. US Biological Life Sciences.
Protected 4-Hydroxyphenylacetic Acid , a compound present in olive oil. An important fine chemical intermediate with broad prospects for application development. Group: Biochemicals. Alternative Names: Methyl 4-tert-Butyldi methyl silyloxyphenylacetate. Grades: Highly Purified. CAS No. 105460-59-1. Pack Sizes: 250mg. US Biological Life Sciences.