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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

D-Gln(4)-Vasopressin

D-Gln(4)-Vasopressin

CAS: 76023-59-1
Formula: C₄₆H₆₅N₁₅O₁₂S₂
MW: 1084.23 g/mol

VQ-034555

Reference Standard

D-Glucamine chemical structure

CAS: 488-43-7
Formula: C₆H₁₅NO₅
MW: 181.19 g/mol

VQ-032977

Reference Standard

D-Glucono-1,4-Lactone chemical structure

D-Glucono-1,4-Lactone

CAS: 1198-69-2
Formula: C₆H₁₀O₆
MW: 178.14 g/mol

VQ-027194

Reference Standard

D-Glucopyranoside methyl 2,6-dipalmitate chemical structure

D-Glucopyranoside methyl 2,6-dipalmitate

CAS: 82933-92-4
Formula: C₃₉H₇₄O₈
MW: 671 g/mol

VQ-051541

Reference Standard

D-Glucosamic Acid chemical structure

D-Glucosamic Acid

CAS: 3646-68-2
Formula: C₆H₁₃NO₆
MW: 195.17 g/mol

VQ-045224

Reference Standard

D-Glucosamine 13C Hydrochloride chemical structure

D-Glucosamine 13C Hydrochloride

CAS: 84247-63-2
Formula: C₆H₁₄ClNO₅
MW: 216.62 g/mol

VQ-037537

Reference Standard

D-Glucose-1,2,3,4,5,6,6-d7 chemical structure

D-Glucose-1,2,3,4,5,6,6-d7

CAS: 66034-51-3
Formula: C₆H₁₂O₆
MW: 187.2 g/mol

VQ-041153

Reference Standard

D-Glucose-13C6 chemical structure

CAS: 110187-42-3
Formula: C₆H₁₂O₆
MW: 186.11 g/mol

VQ-041064

Reference Standard

D-Glutamic Acid-d5 chemical structure

D-Glutamic Acid-d5

CAS: 14341-88-9
Formula: C₅H₉NO₄
MW: 152.16 g/mol

VQ-052422

Reference Standard

D-Homo B Derivative Bethamethasone chemical structure

D-Homo B Derivative Bethamethasone

CAS: 1201919-18-7
Formula: C₂₂H₂₈FNa₂O₈P
MW: 516.4 g/mol

VQ-020948

Reference Standard

D-Homo C Derivative of Betamethasone Sodium Phosphate chemical structure

D-Homo C Derivative of Betamethasone Sodium Phosphate

CAS: 1201919-11-0
Formula: C₂₂H₂₈FNa₂O₈P
MW: 516.4 g/mol

VQ-021811

Reference Standard

D-Homoanalog Of Triamcinolone chemical structure

D-Homoanalog Of Triamcinolone

CAS: 130063-07-9
Formula: C₂₁H₂₇FO₆
MW: 394.4 g/mol

VQ-042666

Reference Standard

D-Iditol chemical structure

CAS: 25878-23-3
Formula: C₆H₁₄O₆
MW: 182.17 g/mol

VQ-027065

Reference Standard

D-Isomer Melphalan Hydrochloride chemical structure

D-Isomer Melphalan Hydrochloride

CAS: 4213-32-5
Formula: C₁₃H₁₉Cl₃N₂O₂
MW: 341.7 g/mol

VQ-028909

Reference Standard

D-Limonene (Orange Oil) chemical structure

D-Limonene (Orange Oil)

CAS: 8028-48-6
Formula: C₁₅H₂₂O
MW: 218.33 g/mol

VQ-038896

Reference Standard

D-Lysine chemical structure

CAS: 923-27-3
Formula: C₆H₁₄N₂O₂
MW: 146.19 g/mol

VQ-040427

Reference Standard

D-Mannose-6-phosphate Disodium Salt chemical structure

D-Mannose-6-phosphate Disodium Salt

CAS: 33068-18-7
Formula: C₆H₁₁Na₂O₉P
MW: 304.1 g/mol

VQ-052161

Reference Standard

D-Methionine sulfoxide chemical structure

D-Methionine sulfoxide

CAS: 21056-56-4
Formula: C₅H₁₁NO₃S
MW: 165.21 g/mol

VQ-049709

Reference Standard

D-N-Acetylphenylalaninol chemical structure

D-N-Acetylphenylalaninol

CAS: 52485-50-4
Formula: C₁₁H₁₅NO₂
MW: 193.24 g/mol

VQ-040198

Reference Standard

D-Nebivolol D4

CAS: 2747915-48-4
Formula: C₂₂H₂₁D₄F₂NO₄
MW: 409.47 g/mol

VQ-049208

Reference Standard

D-Neopterin chemical structure

CAS: 2009-64-5
Formula: C₉H₁₁N₅O₄
MW: 253.22 g/mol

VQ-023225

Reference Standard

D-Penicillamine chemical structure

D-Penicillamine

CAS: 52-67-5
Formula: C₅H₁₁NO₂S
MW: 149.21 g/mol

VQ-027425

Reference Standard

D-Penicillamine Disulfide chemical structure

D-Penicillamine Disulfide

CAS: 20902-45-8
Formula: C₁₀H₂₀N₂O₄S₂
MW: 296.4 g/mol

VQ-033096

Reference Standard

D-Phenylalanine-D5 chemical structure

D-Phenylalanine-D5

CAS: 362049-55-6
Formula: C₉H₁₁NO₂
MW: 170.22 g/mol

VQ-041450

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