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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

Hexamidine EP Impurity A Hydrochloride chemical structure

Hexamidine EP Impurity A Hydrochloride

CAS: 104236-65-9
Formula: C₁₉H₂₄ClN₃O₃
MW: 377.9 g/mol

VQ-037577

Reference Standard

Hexamidine EP Impurity B

Hexamidine EP Impurity B

CAS: 2469554-78-5
Formula: C₂₂H₂₉N₃O₃
MW: 383.48 g/mol

VQ-026056

Reference Standard

Hexamidine EP Impurity D chemical structure

Hexamidine EP Impurity D

CAS: 2514722-87-1
Formula: C₂₂H₂₈N₂O₄
MW: 384.5 g/mol

VQ-022788

Reference Standard

Hexanedioic Acid Mono-(2-carboxyphenyl) Ester chemical structure

Hexanedioic Acid Mono-(2-carboxyphenyl) Ester

CAS: 863985-44-8
Formula: C₁₃H₁₄O₆
MW: 266.25 g/mol

VQ-035593

Reference Standard

Hexestrol chemical structure

CAS: 84-16-2
Formula: C₁₈H₂₂O₂
MW: 270.4 g/mol

VQ-037583

Reference Standard

Hexestrol-D4 chemical structure

CAS: 1189950-25-1
Formula: C₁₈H₂₂O₂
MW: 274.4 g/mol

VQ-048573

Reference Standard

Hexestrol-d6 (hexane-2,2,3,4,5,5-d6) chemical structure

Hexestrol-d6 (hexane-2,2,3,4,5,5-d6)

CAS: 1219798-48-7
Formula: C₁₈H₂₂O₂
MW: 276.4 g/mol

VQ-037584

Reference Standard

Hexetidine chemical structure

CAS: 141-94-6
Formula: C₂₁H₄₅N₃
MW: 339.6 g/mol

VQ-022790

Reference Standard

Hexetidine EP Impurity A chemical structure

Hexetidine EP Impurity A

CAS: 188655-38-1
Formula: C₂₁H₄₃N₃
MW: 337.6 g/mol

VQ-028888

Reference Standard

Hexetidine EP Impurity B chemical structure

Hexetidine EP Impurity B

CAS: 3687-16-9
Formula: C₂₀H₄₅N₃
MW: 327.6 g/mol

VQ-028867

Reference Standard

Hexetidine EP Impurity C chemical structure

Hexetidine EP Impurity C

CAS: 5980-31-4
Formula: C₂₂H₄₅N₃
MW: 351.6 g/mol

VQ-023377

Reference Standard

Hexetidine EP Impurity D chemical structure

Hexetidine EP Impurity D

CAS: 81-04-9
Formula: C₁₀H₈O₆S₂
MW: 288.3 g/mol

VQ-035483

Reference Standard

Hexylresorcinol EP Impurity C chemical structure

Hexylresorcinol EP Impurity C

CAS: 533-24-4
Formula: C₁₁H₁₆O₂
MW: 180.24 g/mol

VQ-048574

Reference Standard

Hidrosmin chemical structure

CAS: 115960-14-0
Formula: C₃₀H₃₆O₁₆
MW: 652.6 g/mol

VQ-031065

Reference Standard

Hippuric Acid-d5 chemical structure

Hippuric Acid-d5

CAS: 53518-98-2
Formula: C₉H₉NO₃
MW: 184.2 g/mol

VQ-052413

Reference Standard

Histamine glutarimide chemical structure

Histamine glutarimide

CAS: 1464897-15-1
Formula: C₁₀H₁₃N₃O₂
MW: 207.23 g/mol

VQ-027287

Reference Standard

Histamine Glutarimide Dimer Impurity

Histamine Glutarimide Dimer Impurity

CAS: 154545-39-8
Formula: C₁₅H₂₂N₆O₂
MW: 318.4 g/mol

VQ-035393

Reference Standard

Histamine-d4 Dihydrochloride chemical structure

Histamine-d4 Dihydrochloride

CAS: 344299-48-5
Formula: C₅H₉N₃
MW: 115.17 g/mol

VQ-037585

Reference Standard

Homatropine chemical structure

CAS: 87-00-3
Formula: C₁₆H₂₁NO₃
MW: 275.34 g/mol

VQ-031068

Reference Standard

Homatropine Methylbromide chemical structure

Homatropine Methylbromide

CAS: 80-49-9
Formula: C₁₇H₂₄BrNO₃
MW: 370.3 g/mol

VQ-031067

Reference Standard

Homo Brassinolide chemical structure

Homo Brassinolide

CAS: 80483-89-2
Formula: C₂₉H₅₀O₆
MW: 494.7 g/mol

VQ-024629

Reference Standard

Homo Sildenafil-D5 chemical structure

Homo Sildenafil-D5

CAS: 1216711-61-3
Formula: C₂₃H₃₂N₆O₄S
MW: 493.6 g/mol

VQ-042167

Reference Standard

Homobrassinolide chemical structure

Homobrassinolide

CAS: 74174-44-0
Formula: C₂₉H₅₀O₆
MW: 494.7 g/mol

VQ-024630

Reference Standard

Homocapsaicin I chemical structure

Homocapsaicin I

CAS: 58493-48-4
Formula: C₁₉H₂₉NO₃
MW: 319.4 g/mol

VQ-024758

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