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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

Halcinonide chemical structure

CAS: 3093-35-4
Formula: C₂₄H₃₂ClFO₅
MW: 455 g/mol

VQ-031045

Reference Standard

Halobetasol chemical structure

CAS: 98651-66-2
Formula: C₂₂H₂₇ClF₂O₄
MW: 428.9 g/mol

VQ-026038

Reference Standard

Halobetasol Impurity 1 chemical structure

Halobetasol Impurity 1

CAS: 924726-88-5
Formula: C₂₇H₃₆F₂O₆
MW: 494.6 g/mol

VQ-037568

Reference Standard

Halobetasol Propionate Impurity D chemical structure

Halobetasol Propionate Impurity D

CAS: 66852-61-7
Formula: C₂₅H₃₁Cl₂FO₅
MW: 501.4 g/mol

VQ-026036

Reference Standard

Halobetasol Spiro Analog

Halobetasol Spiro Analog

CAS: 912360-04-4
Formula: C₂₅H₂₉ClF₂O₄
MW: 466.95 g/mol

VQ-026040

Reference Standard

Halofantrine Hydrochloride chemical structure

Halofantrine Hydrochloride

CAS: 36167-63-2
Formula: C₂₆H₃₁Cl₃F₃NO
MW: 536.9 g/mol

VQ-043189

Reference Standard

Halofuginone chemical structure

CAS: 55837-20-2
Formula: C₁₆H₁₇BrClN₃O₃
MW: 414.7 g/mol

VQ-037570

Reference Standard

Halofuginone Hydrobromide chemical structure

Halofuginone Hydrobromide

CAS: 64924-67-0
Formula: C₁₆H₁₈Br₂ClN₃O₃
MW: 495.6 g/mol

VQ-037569

Reference Standard

Halofuginone Lactate chemical structure

Halofuginone Lactate

CAS: 82186-71-8
Formula: C₁₉H₂₃BrClN₃O₆
MW: 504.8 g/mol

VQ-031046

Reference Standard

Halometasone chemical structure

CAS: 50629-82-8
Formula: C₂₂H₂₇ClF₂O₅
MW: 444.9 g/mol

VQ-043772

Reference Standard

Halometasone Monohydrate chemical structure

Halometasone Monohydrate

CAS: 1310709-74-0
Formula: C₂₂H₂₉ClF₂O₆
MW: 462.9 g/mol

VQ-048570

Reference Standard

Haloperidol chemical structure

CAS: 52-86-8
Formula: C₂₁H₂₃ClFNO₂
MW: 375.9 g/mol

VQ-026041

Reference Standard

Haloperidol Cyclopropyl Derivative chemical structure

Haloperidol Cyclopropyl Derivative

CAS: 185626-66-8
Formula: C₂₁H₂₂ClNO₂
MW: 355.9 g/mol

VQ-022786

Reference Standard

Haloperidol Decanoate chemical structure

Haloperidol Decanoate

CAS: 74050-97-8
Formula: C₃₁H₄₁ClFNO₃
MW: 530.1 g/mol

VQ-022777

Reference Standard

Haloperidol Decanoate EP Impurity A chemical structure

Haloperidol Decanoate EP Impurity A

CAS: 1797824-64-6
Formula: C₃₁H₄₂FNO₃
MW: 495.7 g/mol

VQ-026048

Reference Standard

Haloperidol Decanoate EP Impurity C chemical structure

Haloperidol Decanoate EP Impurity C

CAS: 1797982-02-5
Formula: C₃₃H₄₅ClFNO₃
MW: 558.2 g/mol

VQ-022780

Reference Standard

Haloperidol Decanoate EP Impurity D chemical structure

Haloperidol Decanoate EP Impurity D

CAS: 1797008-46-8
Formula: C₄₂H₅₄Cl₂N₂O₄
MW: 721.8 g/mol

VQ-022787

Reference Standard

Haloperidol Decanoate EP Impurity E chemical structure

Haloperidol Decanoate EP Impurity E

CAS: 1796933-22-6
Formula: C₃₇H₄₅ClFNO₃
MW: 606.2 g/mol

VQ-026049

Reference Standard

Haloperidol Decanoate EP Impurity F chemical structure

Haloperidol Decanoate EP Impurity F

CAS: 1797131-50-0
Formula: C₃₇H₄₅ClFNO₃
MW: 606.2 g/mol

VQ-031048

Reference Standard

Haloperidol Decanoate EP Impurity H chemical structure

Haloperidol Decanoate EP Impurity H

CAS: 1134807-34-3
Formula: C₂₉H₃₇ClFNO₃
MW: 502.1 g/mol

VQ-026050

Reference Standard

Haloperidol Decanoate EP Impurity I chemical structure

Haloperidol Decanoate EP Impurity I

CAS: 1797130-89-2
Formula: C₃₀H₃₉ClFNO₃
MW: 516.1 g/mol

VQ-031047

Reference Standard

Haloperidol Decanoate EP Impurity J chemical structure

Haloperidol Decanoate EP Impurity J

CAS: 1797983-18-6
Formula: C₃₂H₄₃ClFNO₃
MW: 544.1 g/mol

VQ-026051

Reference Standard

Haloperidol Decanoate EP Impurity K chemical structure

Haloperidol Decanoate EP Impurity K

CAS: 65135-24-2
Formula: C₃₃H₄₅ClFNO₃
MW: 558.2 g/mol

VQ-026052

Reference Standard

Haloperidol Decanoate N-Oxide chemical structure

Haloperidol Decanoate N-Oxide

CAS: 2749298-36-8
Formula: C₃₁H₄₁ClFNO₄
MW: 546.1 g/mol

VQ-031052

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