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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.

28,554products

6sub-categories

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COA + SDSwith every lot

API Impurities 14,252 Pharmacopeial Impurities (EP / USP / BP) 4,401 Nitrosamine Impurities 650 Stable Isotope Labelled Standards (Deuterated, 13C, 15N) 1,612 Metabolites & Degradation Products 4,146 API Reference Standards 3,493

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,N10-Diacetyl Triethylenetetramine chemical structure

N1,N10-Diacetyl Triethylenetetramine

CAS: 141998-22-3
Formula: C₁₀H₂₂N₄O₂
MW: 230.31 g/mol

VQ-042676

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

Reference Standard

N1,N2-Dinitroso Clavulanate EP Impurity L

N1,N2-Dinitroso Clavulanate EP Impurity L

CAS: 56134-72-6
Formula: C₈H₁₈N₄O₂
MW: 202.25 g/mol

VQ-041570

Reference Standard

N1,N3-Bis(2,3-dihydroxypropyl)-2,4,6-triiodo-5-(2-(methylamino)-2-oxoethoxy)isophthalamide chemical structure

N1,N3-Bis(2,3-dihydroxypropyl)-2,4,6-triiodo-5-(2-(methylamino)-2-oxoethoxy)isophthalamide

CAS: 104517-95-5
Formula: C₁₇H₂₂I₃N₃O₈
MW: 777.1 g/mol

VQ-026182

Reference Standard

N1,N3-Bis(2,3-dihydroxypropyl)-2,4,6-triiodo-5-(methylamino)isophthalamide chemical structure

N1,N3-Bis(2,3-dihydroxypropyl)-2,4,6-triiodo-5-(methylamino)isophthalamide

CAS: 2143116-91-8
Formula: C₁₅H₂₀I₃N₃O₆
MW: 719.05 g/mol

VQ-037715

Reference Standard

N1,N3-bis(2,3-Dihydroxypropyl)-5-(2-(2-hydroxyethoxy)-N-(2-hydroxyethyl)acetamido)-2,4,6-triiodoisophthalamide chemical structure

N1,N3-bis(2,3-Dihydroxypropyl)-5-(2-(2-hydroxyethoxy)-N-(2-hydroxyethyl)acetamido)-2,4,6-triiodoisophthalamide

CAS: 2061892-21-3
Formula: C₂₀H₂₈I₃N₃O₁₀
MW: 851.2 g/mol

VQ-031219

Reference Standard

N1,N3-bis(2,3-Dihydroxypropyl)-5-(2-hydroxy-N-(2-hydroxyethyl)acetamido)-N1-(2-hydroxyethyl)-2,4,6-triiodoisophthalamide chemical structure

N1,N3-bis(2,3-Dihydroxypropyl)-5-(2-hydroxy-N-(2-hydroxyethyl)acetamido)-N1-(2-hydroxyethyl)-2,4,6-triiodoisophthalamide

CAS: 2922747-40-6
Formula: C₂₀H₂₈I₃N₃O₁₀
MW: 851.2 g/mol

VQ-043196

Reference Standard

N1,N3-Bis(2,3-dihydroxypropyl)-5-(2-hydroxyacetamido)-2,4,6-triiodoisophthalamide chemical structure

N1,N3-Bis(2,3-dihydroxypropyl)-5-(2-hydroxyacetamido)-2,4,6-triiodoisophthalamide

CAS: 77868-40-7
Formula: C₁₆H₂₀I₃N₃O₈
MW: 763.06 g/mol

VQ-031228

Reference Standard

N1,N4-Bis-(7-chloroquinolin-4-yl)-N1-ethylpentane-1,4-diamine chemical structure

N1,N4-Bis-(7-chloroquinolin-4-yl)-N1-ethylpentane-1,4-diamine

CAS: 2518282-96-5
Formula: C₂₅H₂₆Cl₂N₄
MW: 453.4 g/mol

VQ-031103

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