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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

1,2-Dioleoyl-3-palmitoyl-rac-glycerol chemical structure

1,2-Dioleoyl-3-palmitoyl-rac-glycerol

CAS: 2190-30-9
Formula: C₅₅H₁₀₂O₆
MW: 859.4 g/mol

VQ-037539

Reference Standard

1,2-Distearoyl-sn-glycero-3-phosphate sodium salt chemical structure

1,2-Distearoyl-sn-glycero-3-phosphate sodium salt

CAS: 108321-18-2
Formula: C₃₉H₇₆NaO₈P
MW: 727 g/mol

VQ-032339

Reference Standard

1,2-Distearoyl-sn-glycero-3-phospho-rac-(1-glycerol) Sodium Salt chemical structure

1,2-Distearoyl-sn-glycero-3-phospho-rac-(1-glycerol) Sodium Salt

CAS: 200880-42-8
Formula: C₄₂H₈₂NaO₁₀P
MW: 801.1 g/mol

VQ-036821

Reference Standard

1,2-O-Isoppropylidene-β-D-Glucofuranose chemical structure

1,2-O-Isoppropylidene-β-D-Glucofuranose

CAS: 18549-40-1
Formula: C₉H₁₆O₆
MW: 220.22 g/mol

VQ-034361

Reference Standard

1,2-O-Isopropylidene-β-D-fructopyranose chemical structure

1,2-O-Isopropylidene-β-D-fructopyranose

CAS: 66900-93-4
Formula: C₉H₁₆O₆
MW: 220.22 g/mol

VQ-028465

Reference Standard

1,2-Propadienylphosphonic Dichloride chemical structure

1,2-Propadienylphosphonic Dichloride

CAS: 17166-36-8
Formula: C₃H₃Cl₂OP
MW: 156.93 g/mol

VQ-040454

Reference Standard

1,2-Pyrrolidinedicarboxylic acid, 4-(1,1-dimethylethoxy)-,1-(9H-fluoren-9-ylmethyl) ester, (2R,4R) chemical structure

1,2-Pyrrolidinedicarboxylic acid, 4-(1,1-dimethylethoxy)-,1-(9H-fluoren-9-ylmethyl) ester, (2R,4R)

CAS: 1276694-30-4
Formula: C₂₄H₂₇NO₅
MW: 409.5 g/mol

VQ-040185

Reference Standard

1,2,3-Trichloro-4,6-dinitrobenzene chemical structure

1,2,3-Trichloro-4,6-dinitrobenzene

CAS: 6379-46-0
Formula: C₆HCl₃N₂O₄
MW: 271.4 g/mol

VQ-035729

Reference Standard

1,2,3,4-Tetradehydro Argatroban chemical structure

1,2,3,4-Tetradehydro Argatroban

CAS: 951130-92-0
Formula: C₂₃H₃₂N₆O₅S
MW: 504.6 g/mol

VQ-024355

Reference Standard

1,2,3,4-Tetrahydro-1-(4-Amino-2-methylbenzoyl)-7-chloro-5H-1-benzazepin-5-one chemical structure

1,2,3,4-Tetrahydro-1-(4-Amino-2-methylbenzoyl)-7-chloro-5H-1-benzazepin-5-one

CAS: 137977-97-0
Formula: C₁₈H₁₇ClN₂O₂
MW: 328.8 g/mol

VQ-028452

Reference Standard

1,2,3,4-Tetrahydro-1-naphthoic Acid chemical structure

1,2,3,4-Tetrahydro-1-naphthoic Acid

CAS: 1914-65-4
Formula: C₁₁H₁₂O₂
MW: 176.21 g/mol

VQ-028314

Reference Standard

1,2,3,4-Tetrahydro-4,6-dihydroxy-2-methylisoquinoline Hydrochloride chemical structure

1,2,3,4-Tetrahydro-4,6-dihydroxy-2-methylisoquinoline Hydrochloride

CAS: 57196-61-9
Formula: C₁₀H₁₄ClNO₂
MW: 215.67 g/mol

VQ-023695

Reference Standard

1,2,3,4-Tetrahydrobenzoazepine-5-one chemical structure

1,2,3,4-Tetrahydrobenzoazepine-5-one

CAS: 1127-74-8
Formula: C₁₀H₁₁NO
MW: 161.2 g/mol

VQ-032718

Reference Standard

1,2,3,4-Tetrahydroisoquinoline-4,6,7-triol Hydrochloride chemical structure

1,2,3,4-Tetrahydroisoquinoline-4,6,7-triol Hydrochloride

CAS: 41462-32-2
Formula: C₉H₁₂ClNO₃
MW: 217.65 g/mol

VQ-032207

Reference Standard

1,2,3,4-Tetrahydroquinoxalin-6-amine chemical structure

1,2,3,4-Tetrahydroquinoxalin-6-amine

CAS: 6639-91-4
Formula: C₈H₁₁N₃
MW: 149.19 g/mol

VQ-036022

Reference Standard

1,2,3,5-Tetra-O-acetyl β-L-Ribofuranose chemical structure

1,2,3,5-Tetra-O-acetyl β-L-Ribofuranose

CAS: 144490-03-9
Formula: C₁₃H₁₈O₉
MW: 318.28 g/mol

VQ-035879

Reference Standard

1,2,3,5-Tetra-O-acetyl-alpha-D-ribofuranose chemical structure

1,2,3,5-Tetra-O-acetyl-alpha-D-ribofuranose

CAS: 50730-26-2
Formula: C₁₃H₁₈O₉
MW: 318.28 g/mol

VQ-035068

Reference Standard

1,2,3,5-Tetra-O-acetyl-beta-L-xylofuranose chemical structure

1,2,3,5-Tetra-O-acetyl-beta-L-xylofuranose

CAS: 844877-56-1
Formula: C₁₃H₁₈O₉
MW: 318.28 g/mol

VQ-029321

Reference Standard

1,2,3,5-tetra-O-acetyl-D-lyxofuranose chemical structure

1,2,3,5-tetra-O-acetyl-D-lyxofuranose

CAS: 39727-26-9
Formula: C₁₃H₁₈O₉
MW: 318.28 g/mol

VQ-047503

Reference Standard

1,2,3,5-tetra-O-acetyl-D-xylofuranose chemical structure

1,2,3,5-tetra-O-acetyl-D-xylofuranose

CAS: 42927-46-8
Formula: C₁₃H₁₈O₉
MW: 318.28 g/mol

VQ-047502

Reference Standard

1,2,4-Benzenetriol chemical structure

1,2,4-Benzenetriol

CAS: 533-73-3
Formula: C₆H₆O₃
MW: 126.11 g/mol

VQ-024300

Reference Standard

1,2,4-Butanetriol trinitrate chemical structure

1,2,4-Butanetriol trinitrate

CAS: 6659-60-5
Formula: C₄H₇N₃O₉
MW: 241.11 g/mol

VQ-045171

Reference Standard

1,2,4-Triazolo[4,3-a]pyridine-3(2H)-one chemical structure

1,2,4-Triazolo[4,3-a]pyridine-3(2H)-one

CAS: 6969-71-7
Formula: C₆H₅N₃O
MW: 135.12 g/mol

VQ-028484

Reference Standard

1,2,6,7-Tetrahydro-8H-indeno (5,4b) furan-8-one chemical structure

1,2,6,7-Tetrahydro-8H-indeno (5,4b) furan-8-one

CAS: 196597-78-1
Formula: C₁₁H₁₀O₂
MW: 174.2 g/mol

VQ-027732

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