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Impurities & Reference Standards

API Impurities

Source 1942 api impurities for research, QC and production, documented with COA and SDS.

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Reference Standard

2-Methyl-4,6-bis(octylsulfanylmethyl)phenol chemical structure

2-Methyl-4,6-bis(octylsulfanylmethyl)phenol

CAS: 110553-27-0
Formula: C₂₅H₄₄OS₂
MW: 424.8 g/mol

VQ-032574

Reference Standard

2-Methyl-5-(2-(4-(methylsulfonyl)phenyl)acetyl)pyridine 1-oxide chemical structure

2-Methyl-5-(2-(4-(methylsulfonyl)phenyl)acetyl)pyridine 1-oxide

CAS: 1027162-35-1
Formula: C₁₅H₁₅NO₄S
MW: 305.4 g/mol

VQ-030627

Reference Standard

2-Methyl-5-(3-(4-(methylsulfonyl)phenyl)furan-2-yl)pyridine chemical structure

2-Methyl-5-(3-(4-(methylsulfonyl)phenyl)furan-2-yl)pyridine

CAS: 307531-96-0
Formula: C₁₇H₁₅NO₃S
MW: 313.4 g/mol

VQ-025677

Reference Standard

2-Methyl-5-(trifluoromethyl)-1,3,4-oxadiazole chemical structure

2-Methyl-5-(trifluoromethyl)-1,3,4-oxadiazole

CAS: 1036648-53-9
Formula: C₄H₃F₃N₂O
MW: 152.07 g/mol

VQ-039578

Reference Standard

2-Methyl-5-nitrobenzenesulfonamide chemical structure

2-Methyl-5-nitrobenzenesulfonamide

CAS: 6269-91-6
Formula: C₇H₈N₂O₄S
MW: 216.22 g/mol

VQ-027401

Reference Standard

2-Methyl-5-nitrobenzoic acid chemical structure

2-Methyl-5-nitrobenzoic acid

CAS: 1975-52-6
Formula: C₈H₇NO₄
MW: 181.15 g/mol

VQ-037940

Reference Standard

2-Methyl-5H-dibenzazepine chemical structure

2-Methyl-5H-dibenzazepine

CAS: 70401-31-9
Formula: C₁₅H₁₃N
MW: 207.27 g/mol

VQ-034806

Reference Standard

2-Methyl-Celecoxib chemical structure

2-Methyl-Celecoxib

CAS: 170570-09-9
Formula: C₁₈H₁₆F₃N₃O₂S
MW: 395.4 g/mol

VQ-021123

Reference Standard

2-Methylbenzophenone chemical structure

2-Methylbenzophenone

CAS: 131-58-8
Formula: C₁₄H₁₂O
MW: 196.24 g/mol

VQ-027248

Reference Standard

2-Methylbutane chemical structure

CAS: 1314999-78-4
Formula: C₉H₁₁NO
MW: 149.19 g/mol

VQ-044083

Reference Standard

2-Methylbutyl chloroformate chemical structure

2-Methylbutyl chloroformate

CAS: 20412-39-9
Formula: C₆H₁₁ClO₂
MW: 150.6 g/mol

VQ-039485

Reference Standard

2-Methylestrone

2-Methylestrone

CAS: 2626-12-2
Formula: C₁₉H₂₄O₂
MW: 284.39 g/mol

VQ-044208

Reference Standard

2-Methylhexacosane chemical structure

2-Methylhexacosane

CAS: 1561-02-0
Formula: C₂₇H₅₆
MW: 380.7 g/mol

VQ-044745

Reference Standard

2-Methylindoline chemical structure

2-Methylindoline

CAS: 6872-06-6
Formula: C₉H₁₁N
MW: 133.19 g/mol

VQ-039764

Reference Standard

2-Methylpentane-1,2-diol chemical structure

2-Methylpentane-1,2-diol

CAS: 20667-05-4
Formula: C₆H₁₄O₂
MW: 118.17 g/mol

VQ-035176

Reference Standard

2-Methylpentyl Chloroformate chemical structure

2-Methylpentyl Chloroformate

CAS: 265659-61-8
Formula: C₇H₁₃ClO₂
MW: 164.63 g/mol

VQ-029977

Reference Standard

2-Methylphenylhydrazine Hydrochloride chemical structure

2-Methylphenylhydrazine Hydrochloride

CAS: 635-26-7
Formula: C₇H₁₁ClN₂
MW: 158.63 g/mol

VQ-037147

Reference Standard

2-Methylphthalazin-1(2H)-one chemical structure

2-Methylphthalazin-1(2H)-one

CAS: 6091-81-2
Formula: C₉H₈N₂O
MW: 160.17 g/mol

VQ-031073

Reference Standard

2-Methylquinolin-4-ol chemical structure

2-Methylquinolin-4-ol

CAS: 607-67-0
Formula: C₁₀H₉NO
MW: 159.18 g/mol

VQ-030356

Reference Standard

2-Methylthiazolidine-4-carboxylic Acid chemical structure

2-Methylthiazolidine-4-carboxylic Acid

CAS: 4165-32-6
Formula: C₅H₉NO₂S
MW: 147.2 g/mol

VQ-047316

Reference Standard

2-Monobromo Aripiprazole chemical structure

2-Monobromo Aripiprazole

CAS: 203395-84-0
Formula: C₂₃H₂₈BrN₃O₂
MW: 458.4 g/mol

VQ-029220

Reference Standard

2-Monomethyl Isosorbide chemical structure

2-Monomethyl Isosorbide

CAS: 6941-54-4
Formula: C₇H₁₂O₄
MW: 160.17 g/mol

VQ-037756

Reference Standard

2-Naphthalenecarboxylic Acid chemical structure

2-Naphthalenecarboxylic Acid

CAS: 93-09-4
Formula: C₁₁H₈O₂
MW: 172.18 g/mol

VQ-023382

Reference Standard

2-Naphthyl glycidyl Ether chemical structure

2-Naphthyl glycidyl Ether

CAS: 5234-06-0
Formula: C₁₃H₁₂O₂
MW: 200.23 g/mol

VQ-027193

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