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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

2,746in stock

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

Linezolid Undesired Di Benzyl Impurity chemical structure

Linezolid Undesired Di Benzyl Impurity

Formula: C₂₈H₃₀FN₃O₃
MW: 475.6 g/mol

In stock

Reference Standard

Linezolid USP Related Compound C chemical structure

Linezolid USP Related Compound C

CAS: 168828-90-8
Formula: C₁₄H₁₈FN₃O₃
MW: 295.31 g/mol

In stock

Reference Standard

Linezolid USP Related Compound D chemical structure

Linezolid USP Related Compound D

CAS: 174649-09-3
Formula: C₁₅H₁₉FN₂O₆S
MW: 374.4 g/mol

In stock

Reference Standard

Linezolid-d3 chemical structure

CAS: 1127120-38-0
Formula: C₁₆H₂₀FN₃O₄
MW: 340.36 g/mol

VQ-038077

Reference Standard

Linezolid-d8 chemical structure

CAS: 1032182-14-1
Formula: C₁₆H₂₀FN₃O₄
MW: 345.39 g/mol

VQ-038078

Reference Standard

Linolenic Acid chemical structure

CAS: 463-40-1
Formula: C₁₈H₃₀O₂
MW: 278.4 g/mol

VQ-032612

Reference Standard

Linolenic Acid Ethyl Ester chemical structure

Linolenic Acid Ethyl Ester

CAS: 1191-41-9
Formula: C₂₀H₃₄O₂
MW: 306.5 g/mol

VQ-032595

Reference Standard

Linolenic Acid Impurity 1

Linolenic Acid Impurity 1

CAS: 110916-99-9
Formula: C₁₈H₃₀O₃
MW: 294.4 g/mol

VQ-048903

Reference Standard

Linsidomine Hydrochloride chemical structure

Linsidomine Hydrochloride

CAS: 16142-27-1
Formula: C₆H₁₁ClN₄O₂
MW: 206.63 g/mol

VQ-031974

Reference Standard

Linuron chemical structure

CAS: 330-55-2
Formula: C₉H₁₀Cl₂N₂O₂
MW: 249.09 g/mol

VQ-038922

Reference Standard

Liothyronine EP Impurity B (Dihydrate Salt) chemical structure

Liothyronine EP Impurity B (Dihydrate Salt)

CAS: 18835-59-1
Formula: C₉H₁₃I₂NO₅
MW: 469.01 g/mol

In stock

Reference Standard

Liothyronine EP Impurity B (Freebase) chemical structure

Liothyronine EP Impurity B (Freebase)

CAS: 300-39-0
Formula: C₉H₉I₂NO₃
MW: 432.98 g/mol

In stock

Reference Standard

Lipochroman chemical structure

CAS: 83923-51-7
Formula: C₁₂H₁₆O₃
MW: 208.25 g/mol

VQ-052285

Reference Standard

Lipoic Acid chemical structure

CAS: 1200-22-2
Formula: C₈H₁₃O₂S₂-
MW: 205.3 g/mol

VQ-034199

Reference Standard

Lipstatin chemical structure

CAS: 96829-59-3
Formula: C₂₉H₄₉NO₅
MW: 491.7 g/mol

VQ-031595

Reference Standard

Liquiritigenin chemical structure

CAS: 69097-97-8
Formula: C₁₅H₁₂O₄
MW: 256.25 g/mol

VQ-039910

Reference Standard

Liraglutide

CAS: 204656-20-2
Formula: C₁₇₂H₂₆₅N₄₃O₅₁
MW: 3751 g/mol

VQ-031399

Reference Standard

Lisdexamfetamine diastereomer 2 (R,S isomer) chemical structure

Lisdexamfetamine diastereomer 2 (R,S isomer)

CAS: 5002-60-8
Formula: C₁₅H₂₅N₃O
MW: 263.38 g/mol

VQ-038084

Reference Standard

Lisdexamfetamine enantiomer (R, R isomer) chemical structure

Lisdexamfetamine enantiomer (R, R isomer)

CAS: 3070439-34-5
Formula: C₁₅H₂₅N₃O
MW: 263.38 g/mol

VQ-048906

Reference Standard

Lisdexamfetamine Tetramino Analog chemical structure

Lisdexamfetamine Tetramino Analog

CAS: 2243794-25-2
Formula: C₂₇H₄₉N₇O₃
MW: 519.7 g/mol

VQ-038082

Reference Standard

Lisdexamfetamine Urea Impurity chemical structure

Lisdexamfetamine Urea Impurity

CAS: 4106-13-2
Formula: C₁₉H₂₄N₂O
MW: 296.4 g/mol

VQ-048905

Reference Standard

Lisdexamfetamine-D6 chemical structure

Lisdexamfetamine-D6

CAS: 1276056-89-3
Formula: C₁₅H₂₇Cl₂N₃O
MW: 342.3 g/mol

VQ-048908

Reference Standard

Lisinopril chemical structure

CAS: 76547-98-3
Formula: C₂₁H₃₁N₃O₅
MW: 405.5 g/mol

VQ-007549

Reference Standard

Lisinopril D5 chemical structure

CAS: 1356905-39-9
Formula: C₂₁H₃₁N₃O₅
MW: 410.5 g/mol

VQ-038089

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