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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

1-Nitro-4-[2-(4-Nitrophenoxy)Ethoxy]Benzene chemical structure

1-Nitro-4-[2-(4-Nitrophenoxy)Ethoxy]Benzene

CAS: 14467-69-7
Formula: C₁₄H₁₂N₂O₆
MW: 304.25 g/mol

VQ-048059

Reference Standard

1-Nitroadamantane chemical structure

1-Nitroadamantane

CAS: 7575-82-8
Formula: C₁₀H₁₅NO₂
MW: 181.23 g/mol

VQ-021274

Reference Standard

1-O-Acetyl-2,3,5-tri-O-benzoyl-α,β-D-ribofuranose chemical structure

1-O-Acetyl-2,3,5-tri-O-benzoyl-α,β-D-ribofuranose

CAS: 14215-97-5
Formula: C₂₈H₂₄O₉
MW: 504.5 g/mol

VQ-043540

Reference Standard

1-O-Acetyl-2,3,5-tri-O-benzoyl-β-D-ribofuranose chemical structure

1-O-Acetyl-2,3,5-tri-O-benzoyl-β-D-ribofuranose

CAS: 6974-32-9
Formula: C₂₈H₂₄O₉
MW: 504.5 g/mol

VQ-020862

Reference Standard

1-O-Acetyl-3,5-bis(4-chlorobenzoyl)-2-deoxy-D-ribose chemical structure

1-O-Acetyl-3,5-bis(4-chlorobenzoyl)-2-deoxy-D-ribose

CAS: 1207459-15-1
Formula: C₂₁H₁₈Cl₂O₇
MW: 453.3 g/mol

VQ-025216

Reference Standard

1-Octadecanal chemical structure

CAS: 638-66-4
Formula: C₁₈H₃₆O
MW: 268.5 g/mol

VQ-043560

Reference Standard

1-Octadecylpyridin-1-ium chloride chemical structure

1-Octadecylpyridin-1-ium chloride

CAS: 3165-81-9
Formula: C₂₃H₄₂ClN
MW: 368 g/mol

VQ-027201

Reference Standard

1-Octyl-4-vinylbenzene chemical structure

1-Octyl-4-vinylbenzene

CAS: 46745-66-8
Formula: C₁₆H₂₄
MW: 216.36 g/mol

VQ-025793

Reference Standard

1-Oxo-3H-2-benzofuran-5-carboxamide chemical structure

1-Oxo-3H-2-benzofuran-5-carboxamide

CAS: 85118-25-8
Formula: C₉H₇NO₃
MW: 177.16 g/mol

VQ-025608

Reference Standard

1-p-(Tolyloxy)-2,3-epoxypropane chemical structure

1-p-(Tolyloxy)-2,3-epoxypropane

CAS: 2186-24-5
Formula: C₁₀H₁₂O₂
MW: 164.2 g/mol

VQ-024609

Reference Standard

1-Palmitoyl-sn-glycero-3-phosphocholine chemical structure

1-Palmitoyl-sn-glycero-3-phosphocholine

CAS: 17364-16-8
Formula: C₂₄H₅₀NO₇P
MW: 495.6 g/mol

VQ-032768

Reference Standard

1-Phenethylimidazole chemical structure

1-Phenethylimidazole

CAS: 49823-14-5
Formula: C₁₁H₁₂N₂
MW: 172.23 g/mol

VQ-027278

Reference Standard

1-Phenyl-1,2,3,4-tetrahydroisoquinoline chemical structure

1-Phenyl-1,2,3,4-tetrahydroisoquinoline

CAS: 22990-19-8
Formula: C₁₅H₁₅N
MW: 209.29 g/mol

VQ-028081

Reference Standard

1-Phenyl-2-(piperidin-1-ylmethyl)prop-2-en-1-one chemical structure

1-Phenyl-2-(piperidin-1-ylmethyl)prop-2-en-1-one

CAS: 127865-20-7
Formula: C₁₅H₁₉NO
MW: 229.32 g/mol

VQ-042692

Reference Standard

1-Phenyl-3-azabicyclo[3.1.0]hexan-2-one chemical structure

1-Phenyl-3-azabicyclo[3.1.0]hexan-2-one

CAS: 153275-06-0
Formula: C₁₁H₁₁NO
MW: 173.21 g/mol

VQ-023133

Reference Standard

1-Phenyl-3-oxabicyclo[3.1.0]hexan-2-one chemical structure

1-Phenyl-3-oxabicyclo[3.1.0]hexan-2-one

CAS: 63106-93-4
Formula: C₁₁H₁₀O₂
MW: 174.2 g/mol

VQ-026698

Reference Standard

1-Phenyl-3,4-dihydroisoquinoline chemical structure

1-Phenyl-3,4-dihydroisoquinoline

CAS: 52250-50-7
Formula: C₁₅H₁₃N
MW: 207.27 g/mol

VQ-042223

Reference Standard

1-Phenyl-5-(pyridin-2-yl)-2(1H)-pyridone chemical structure

1-Phenyl-5-(pyridin-2-yl)-2(1H)-pyridone

CAS: 381725-50-4
Formula: C₁₆H₁₂N₂O
MW: 248.28 g/mol

VQ-027438

Reference Standard

1-Phenylbiguanide chemical structure

1-Phenylbiguanide

CAS: 102-02-3
Formula: C₈H₁₁N₅
MW: 177.21 g/mol

VQ-024929

Reference Standard

1-Phenylpiperidine chemical structure

1-Phenylpiperidine

CAS: 4096-20-2
Formula: C₁₁H₁₅N
MW: 161.24 g/mol

VQ-043612

Reference Standard

1-Phenylprop-2-en-1-one (Stabilized With TBC) chemical structure

1-Phenylprop-2-en-1-one (Stabilized With TBC)

CAS: 768-03-6
Formula: C₉H₈O
MW: 132.16 g/mol

VQ-039691

Reference Standard

1-Piperazinamine chemical structure

1-Piperazinamine

CAS: 30651-60-6
Formula: C₄H₁₁N₃
MW: 101.15 g/mol

VQ-032898

Reference Standard

1-Propanamine, 3-bromo-N,N-dimethyl-, hydrochloride

1-Propanamine, 3-bromo-N,N-dimethyl-, hydrochloride

CAS: 72900-22-2
Formula: C₅H₁₂BrN.HCl
MW: 202.52 g/mol

VQ-039206

Reference Standard

1-Propanone, 1-(3-bromophenyl)-2-((1,1-dimethylethyl)amino) chemical structure

1-Propanone, 1-(3-bromophenyl)-2-((1,1-dimethylethyl)amino)

CAS: 1049974-35-7
Formula: C₁₃H₁₈BrNO
MW: 284.19 g/mol

VQ-043988

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