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Impurities & Reference Standards

Pharmacopoeial and non-pharmacopoeial impurities, metabolites, nitrosamines and working standards with characterisation data for QC and regulatory work.

27,990products

6sub-categories

2,746in stock

COA + SDSwith every lot

API Impurities 14,098 Pharmacopeial Impurities (EP / USP / BP) 4,399 Nitrosamine Impurities 631 Stable Isotope Labelled Standards (Deuterated, 13C, 15N) 1,504 Metabolites & Degradation Products 3,922 API Reference Standards 3,436

Reference Standard

((7-(4-(4-(2,3-Dichlorophenyl)piperazin-1-yl)butoxy)-2-oxo-3,4-dihydroquinolin-1(2H)-yl)methoxy)methyl Dodecanoate

((7-(4-(4-(2,3-Dichlorophenyl)piperazin-1-yl)butoxy)-2-oxo-3,4-dihydroquinolin-1(2H)-yl)methoxy)methyl Dodecanoate

CAS: 1870867-21-2
Formula: C₃₇H₅₃Cl₂N₃O₅
MW: 690.7 g/mol

VQ-043049

Reference Standard

((7S,9AS)-Octahydropyrazino[2,1-c][1,4]oxazin-7-yl)methanol chemical structure

((7S,9AS)-Octahydropyrazino[2,1-c][1,4]oxazin-7-yl)methanol

CAS: 929047-53-0
Formula: C₈H₁₆N₂O₂
MW: 172.22 g/mol

VQ-036953

Reference Standard

((8R,9S,10R,13S,14S)-10,13-Dimethyl-3,17-dioxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-6-yl)methyl methanesulfonate chemical structure

((8R,9S,10R,13S,14S)-10,13-Dimethyl-3,17-dioxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-6-yl)methyl methanesulfonate

CAS: 861395-77-9
Formula: C₂₁H₂₈O₅S
MW: 392.5 g/mol

VQ-037172

Reference Standard

((R)-2-(2-Morpholinoacetamido)-4-phenylbutanoyl)-L-leucyl-L-phenylalanine chemical structure

((R)-2-(2-Morpholinoacetamido)-4-phenylbutanoyl)-L-leucyl-L-phenylalanine

CAS: 2049024-77-1
Formula: C₃₁H₄₂N₄O₆
MW: 566.7 g/mol

VQ-043761

Reference Standard

((S)-1-(((Benzyloxy)carbonyl)glycyl)-2-methylpyrrolidine-2-carbonyl)-L-glutamic Acid chemical structure

((S)-1-(((Benzyloxy)carbonyl)glycyl)-2-methylpyrrolidine-2-carbonyl)-L-glutamic Acid

CAS: 2603450-03-7
Formula: C₂₁H₂₇N₃O₈
MW: 449.5 g/mol

VQ-042714

Reference Standard

((S)-1-((tert-Butoxycarbonyl)glycyl)-2-methylpyrrolidine-2-carbonyl)-L-glutamic Acid

((S)-1-((tert-Butoxycarbonyl)glycyl)-2-methylpyrrolidine-2-carbonyl)-L-glutamic Acid

CAS: 1803481-98-2
Formula: C₁₈H₂₉N₃O₈
MW: 415.4 g/mol

VQ-042715

Reference Standard

((S)-2-(2-Morpholinoacetamido)-4-phenylbutanoyl)-L-leucyl-D-phenylalanine chemical structure

((S)-2-(2-Morpholinoacetamido)-4-phenylbutanoyl)-L-leucyl-D-phenylalanine

CAS: 2419266-61-6
Formula: C₃₁H₄₂N₄O₆
MW: 566.7 g/mol

VQ-044914

Reference Standard

((S)-2-Acetamido-4-phenylbutanoyl)-L-leucyl-L-phenylalanine chemical structure

((S)-2-Acetamido-4-phenylbutanoyl)-L-leucyl-L-phenylalanine

CAS: 890660-08-9
Formula: C₂₇H₃₅N₃O₅
MW: 481.6 g/mol

VQ-044481

Reference Standard

((S)-2-Amino-4-phenylbutanoyl)-L-leucyl-L-phenylalanine chemical structure

((S)-2-Amino-4-phenylbutanoyl)-L-leucyl-L-phenylalanine

CAS: 1545468-80-1
Formula: C₂₅H₃₃N₃O₄
MW: 439.5 g/mol

VQ-044349

Reference Standard

((S)-2,2-Dimethyl-1,3-dioxolan-4-yl)methyl 3-(4-((S)-2-hydroxy-3-(3-(4-((S)-2-hydroxy-3-((2-(morpholine-4-carboxamido)ethyl)amino)propoxy)phenyl)-N-(2-(morpholine-4-carboxamido)ethyl)propanamido)propoxy)phenyl)propanoate chemical structure

((S)-2,2-Dimethyl-1,3-dioxolan-4-yl)methyl 3-(4-((S)-2-hydroxy-3-(3-(4-((S)-2-hydroxy-3-((2-(morpholine-4-carboxamido)ethyl)amino)propoxy)phenyl)-N-(2-(morpholine-4-carboxamido)ethyl)propanamido)propoxy)phenyl)propanoate

CAS: 1582797-17-8
Formula: C₄₄H₆₆N₆O₁₃
MW: 887 g/mol

VQ-031431

Reference Standard

((S)-4-(2-Chlorophenyl)-1-ethoxy-1-oxobutan-2-yl)-L-alanyl-L-proline

((S)-4-(2-Chlorophenyl)-1-ethoxy-1-oxobutan-2-yl)-L-alanyl-L-proline

CAS: 85918-76-9
Formula: C₂₀H₂₇ClN₂O₅
MW: 410.89 g/mol

VQ-030478

Reference Standard

((S)-4,4-Dibutyl-2,6-bis(3,4,5-trifluorophenyl)-4,5-dihydro-3H-Dinaphtho[2,1-C,1`,2`-E]azepinium bromide chemical structure

((S)-4,4-Dibutyl-2,6-bis(3,4,5-trifluorophenyl)-4,5-dihydro-3H-Dinaphtho[2,1-C,1`,2`-E]azepinium bromide

CAS: 851942-89-7
Formula: C₄₂H₃₆BrF₆N
MW: 748.6 g/mol

VQ-040270

Reference Standard

(+)-(2S,3R)-Methyl-3-amino-2-hydroxy-3-phenylpropanoate chemical structure

(+)-(2S,3R)-Methyl-3-amino-2-hydroxy-3-phenylpropanoate

CAS: 322407-45-4
Formula: C₁₀H₁₃NO₃
MW: 195.21 g/mol

VQ-048048

Reference Standard

(+)-(2S,5R)-1-Allyl-2,5-dimethylpiperazine, (+)-Camphoric Acid Salt chemical structure

(+)-(2S,5R)-1-Allyl-2,5-dimethylpiperazine, (+)-Camphoric Acid Salt

CAS: 186094-00-8
Formula: C₁₉H₃₄N₂O₄
MW: 354.5 g/mol

VQ-037986

Reference Standard

(+)-[6]-Gingerol chemical structure

(+)-[6]-Gingerol

CAS: 23513-14-6
Formula: C₁₇H₂₆O₄
MW: 294.4 g/mol

VQ-030985

Reference Standard

(+)-9-DeMe-DTBZ chemical structure

(+)-9-DeMe-DTBZ

CAS: 1065193-59-0
Formula: C₁₈H₂₇NO₃
MW: 305.4 g/mol

VQ-034162

Reference Standard

(+)-Biotin (+)-Sulfoxide chemical structure

(+)-Biotin (+)-Sulfoxide

CAS: 10406-89-0
Formula: C₁₀H₁₆N₂O₄S
MW: 260.31 g/mol

VQ-024599

Reference Standard

(+)-Borneol chemical structure

CAS: 464-43-7
Formula: C₁₀H₁₈O
MW: 154.25 g/mol

VQ-035999

Reference Standard

(+)-Calanolide A chemical structure

(+)-Calanolide A

CAS: 142632-32-4
Formula: C₂₂H₂₆O₅
MW: 370.4 g/mol

VQ-045227

Reference Standard

(+)-Cannabidiol chemical structure

(+)-Cannabidiol

CAS: 74219-29-7
Formula: C₂₁H₃₀O₂
MW: 314.5 g/mol

VQ-029617

Reference Standard

(+)-Catechin chemical structure

CAS: 154-23-4
Formula: C₁₅H₁₄O₆
MW: 290.27 g/mol

VQ-032515

Reference Standard

(+)-Cis-2-Aminomethyl-1-phenylcyclopropanecarboxylic acid.Hydrocholide chemical structure

(+)-Cis-2-Aminomethyl-1-phenylcyclopropanecarboxylic acid.Hydrocholide

CAS: 105310-28-9
Formula: C₁₁H₁₄ClNO₂
MW: 227.69 g/mol

VQ-038407

Reference Standard

(+)-cis-Diltiazem-d3 HCl (acetoxy-d3) chemical structure

(+)-cis-Diltiazem-d3 HCl (acetoxy-d3)

CAS: 1217860-13-3
Formula: C₂₂H₂₇ClN₂O₄S
MW: 454 g/mol

VQ-036709

Reference Standard

(+)-Corey Lactone Benzoate chemical structure

(+)-Corey Lactone Benzoate

CAS: 53275-53-9
Formula: C₁₅H₁₆O₅
MW: 276.28 g/mol

VQ-039460

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