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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

N'-Methylsulfonyl Dofetilide chemical structure

N'-Methylsulfonyl Dofetilide

CAS: 312315-47-2
Formula: C₂₀H₂₉N₃O₇S₃
MW: 519.7 g/mol

VQ-025358

Reference Standard

N',2-Di(propan-2-ylidene)hydrazine-1-carbohydrazide chemical structure

N',2-Di(propan-2-ylidene)hydrazine-1-carbohydrazide

CAS: 19411-36-0
Formula: C₇H₁₄N₄O
MW: 170.21 g/mol

VQ-038674

Reference Standard

N',O'-(4-Methoxybenzylidene)cabazitaxel chemical structure

N',O'-(4-Methoxybenzylidene)cabazitaxel

CAS: 183133-95-1
Formula: C₅₃H₆₃NO₁₅
MW: 954.1 g/mol

VQ-021944

Reference Standard

N′-(2-Chloroethyl)-N,N-dicyclohexylurea

N′-(2-Chloroethyl)-N,N-dicyclohexylurea

CAS: 1222864-16-5
Formula: C₁₅H₂₇ClN₂O
MW: 286.8 g/mol

VQ-038108

Reference Standard

N1-((1S, 2R,4S)-2-Amino-4-(dimethylcarbamoyl)cyclohexyl)- N2-(5-chloro pyridin-2-yl)oxalamide chemical structure

N1-((1S, 2R,4S)-2-Amino-4-(dimethylcarbamoyl)cyclohexyl)- N2-(5-chloro pyridin-2-yl)oxalamide

CAS: 480452-37-7
Formula: C₁₆H₂₂ClN₅O₃
MW: 367.8 g/mol

VQ-030375

Reference Standard

N1-((8-oxo-8-(Phenylamino)octanoyl)oxy)-N8-phenyloctanediamide

N1-((8-oxo-8-(Phenylamino)octanoyl)oxy)-N8-phenyloctanediamide

CAS: 866824-87-5
Formula: C₂₈H₃₇N₃O₅
MW: 495.62 g/mol

VQ-044631

Reference Standard

N1-(1,3-Dihydroxypropan-2-yl)-N3-(2,3-dihydroxypropyl)-5-(N-(2,3-dihydroxypropyl)acetamido)-2,4,6-triiodoisophthalamide chemical structure

N1-(1,3-Dihydroxypropan-2-yl)-N3-(2,3-dihydroxypropyl)-5-(N-(2,3-dihydroxypropyl)acetamido)-2,4,6-triiodoisophthalamide

CAS: 1404062-34-5
Formula: C₁₉H₂₆I₃N₃O₉
MW: 821.1 g/mol

VQ-037714

Reference Standard

N1-(2-(Piperazin-1-yl)ethyl)ethane-1,2-diamine Tetrahydrochloride

N1-(2-(Piperazin-1-yl)ethyl)ethane-1,2-diamine Tetrahydrochloride

CAS: 881850-92-6
Formula: C₈H₂₄Cl₄N₄
MW: 318.11 g/mol

VQ-035473

Reference Standard

N1-(2-Chloroethyl)-N2-(2-((2,4-dimethylphenyl)thio)phenyl)ethane-1,2-diamine chemical structure

N1-(2-Chloroethyl)-N2-(2-((2,4-dimethylphenyl)thio)phenyl)ethane-1,2-diamine

CAS: 1928741-88-1
Formula: C₁₈H₂₃ClN₂S
MW: 334.9 g/mol

VQ-028763

Reference Standard

N1-(2-Chloroethyl)-N2-(2-((2,4-dimethylphenyl)thio)phenyl)ethane-1,2-diamine Hydrochloride chemical structure

N1-(2-Chloroethyl)-N2-(2-((2,4-dimethylphenyl)thio)phenyl)ethane-1,2-diamine Hydrochloride

CAS: 2172212-69-8
Formula: C₁₈H₂₄Cl₂N₂S
MW: 371.4 g/mol

VQ-028757

Reference Standard

N1-(2-chloroethyl)ethane-1,2-diamine chemical structure

N1-(2-chloroethyl)ethane-1,2-diamine

CAS: 92463-21-3
Formula: C₄H₁₁ClN₂
MW: 122.6 g/mol

VQ-027313

Reference Standard

N1-(2-Cyanobenzyl)-3-aminopiperidine chemical structure

N1-(2-Cyanobenzyl)-3-aminopiperidine

CAS: 1353254-17-7
Formula: C₁₃H₁₇N₃
MW: 215.29 g/mol

VQ-035077

Reference Standard

N1-(3-(2-(Trifluoromethyl)-10H-phenothiazin-10-yl)propyl)ethane-1,2-diamine

N1-(3-(2-(Trifluoromethyl)-10H-phenothiazin-10-yl)propyl)ethane-1,2-diamine

CAS: 38483-89-5
Formula: C₁₈H₂₀F₃N₃S
MW: 367.43 g/mol

VQ-037351

Reference Standard

N1-(3-Amino-2-chloro-4-nitrophenyl)-2-chloro-4-nitrobenzene-1,3-diamine

N1-(3-Amino-2-chloro-4-nitrophenyl)-2-chloro-4-nitrobenzene-1,3-diamine

CAS: 2138066-55-2
Formula: C₁₂H₉Cl₂N₅O₄
MW: 358.14 g/mol

VQ-021477

Reference Standard

N1-(4-Fluorobenzyl)oxalamide chemical structure

N1-(4-Fluorobenzyl)oxalamide

CAS: 1796024-88-8
Formula: C₉H₉FN₂O₂
MW: 196.18 g/mol

VQ-027729

Reference Standard

N1-(Pyridin-4-yl)benzene-1,2-diamine chemical structure

N1-(Pyridin-4-yl)benzene-1,2-diamine

CAS: 65053-26-1
Formula: C₁₁H₁₁N₃
MW: 185.22 g/mol

VQ-030319

Reference Standard

N1-[2-(1-Piperazinyl)ethyl]-1,2-ethanediamine chemical structure

N1-[2-(1-Piperazinyl)ethyl]-1,2-ethanediamine

CAS: 24028-46-4
Formula: C₈H₂₀N₄
MW: 172.27 g/mol

VQ-039816

Reference Standard

N1-Acetyl Triethylenetetramine Trihydrochloride chemical structure

N1-Acetyl Triethylenetetramine Trihydrochloride

CAS: 1429850-43-0
Formula: C₈H₂₃Cl₃N₄O
MW: 297.6 g/mol

VQ-034430

Reference Standard

N1-Methylbenzene-1,2,4-triamine chemical structure

N1-Methylbenzene-1,2,4-triamine

CAS: 60651-29-8
Formula: C₇H₁₁N₃
MW: 137.18 g/mol

VQ-043489

Reference Standard

N1-Trityl Valsartan

N1-Trityl Valsartan

CAS: 783369-52-8
Formula: C₄₃H₄₃N₅O₃
MW: 677.83 g/mol

VQ-034529

Reference Standard

N1,N1,N2-Tris(2-aminoethyl)ethane-1,2-diamine chemical structure

N1,N1,N2-Tris(2-aminoethyl)ethane-1,2-diamine

CAS: 31295-46-2
Formula: C₈H₂₃N₅
MW: 189.3 g/mol

VQ-032484

Reference Standard

N1,N2-bis(2-Nitroethyl)ethane-1,2-diamine

N1,N2-bis(2-Nitroethyl)ethane-1,2-diamine

CAS: 145260-45-3
Formula: C₆H₁₄N₄O₄
MW: 206.2 g/mol

VQ-042681

Reference Standard

N1,N2-bis(5-chloropyridin-2-yl)oxalamide chemical structure

N1,N2-bis(5-chloropyridin-2-yl)oxalamide

CAS: 349125-14-0
Formula: C₁₂H₈Cl₂N₄O₂
MW: 311.12 g/mol

VQ-025481

Reference Standard

N1,N2-Bis(benzo[d]isothiazol-3-yl)ethane-1,2-diamine

N1,N2-Bis(benzo[d]isothiazol-3-yl)ethane-1,2-diamine

CAS: 907600-72-0
Formula: C₁₆H₁₄N₄S₂
MW: 326.4 g/mol

VQ-043008

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