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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.

27,990products

6sub-categories

2,746in stock

COA + SDSwith every lot

API Impurities 14,098 Pharmacopeial Impurities (EP / USP / BP) 4,399 Nitrosamine Impurities 631 Stable Isotope Labelled Standards (Deuterated, 13C, 15N) 1,504 Metabolites & Degradation Products 3,922 API Reference Standards 3,436

Reference Standard

(+)-Echimidine chemical structure

CAS: 520-68-3
Formula: C₂₀H₃₁NO₇
MW: 397.5 g/mol

VQ-030352

Reference Standard

(+)-Ent-Peramivir chemical structure

(+)-Ent-Peramivir

CAS: 229615-12-7
Formula: C₁₅H₂₈N₄O₄
MW: 328.41 g/mol

VQ-027435

Reference Standard

(+)-Homopilopic Acid chemical structure

(+)-Homopilopic Acid

CAS: 58073-67-9
Formula: C₈H₁₂O₄
MW: 172.18 g/mol

VQ-033183

Reference Standard

(+)-Isomenthol chemical structure

CAS: 23283-97-8
Formula: C₁₀H₂₀O
MW: 156.26 g/mol

VQ-022513

Reference Standard

(+)-Longifolene chemical structure

(+)-Longifolene

CAS: 475-20-7
Formula: C₁₅H₂₄
MW: 204.35 g/mol

VQ-038902

Reference Standard

(+)-Lycopsamine chemical structure

(+)-Lycopsamine

CAS: 10285-07-1
Formula: C₁₅H₂₅NO₅
MW: 299.36 g/mol

VQ-038223

Reference Standard

(+)-Lycopsamine N-Oxide chemical structure

(+)-Lycopsamine N-Oxide

CAS: 95462-15-0
Formula: C₁₅H₂₅NO₆
MW: 315.36 g/mol

VQ-038224

Reference Standard

(+)-Menthol chemical structure

CAS: 15356-60-2
Formula: C₁₀H₂₀O
MW: 156.26 g/mol

VQ-030463

Reference Standard

(+)-Menthone chemical structure

CAS: 3391-87-5
Formula: C₁₀H₁₈O
MW: 154.25 g/mol

VQ-044601

Reference Standard

(+)-Metaraminol chemical structure

(+)-Metaraminol

CAS: 61-59-6
Formula: C₉H₁₃NO₂
MW: 167.2 g/mol

VQ-044218

Reference Standard

(+)-MK 801 Maleate chemical structure

(+)-MK 801 Maleate

CAS: 77086-22-7
Formula: C₂₀H₁₉NO₄
MW: 337.4 g/mol

VQ-036703

Reference Standard

(+)-Nalbuphine

CAS: 1240373-02-7
Formula: C₂₁H₂₇NO₄
MW: 357.44 g/mol

VQ-026819

Reference Standard

(+)-Narwedine chemical structure

CAS: 7318-55-0
Formula: C₁₇H₁₉NO₃
MW: 285.34 g/mol

VQ-048502

Reference Standard

(+)-Nebivolol chemical structure

CAS: 118457-15-1
Formula: C₂₂H₂₅F₂NO₄
MW: 405.4 g/mol

VQ-026841

Reference Standard

(+)-Neomenthol chemical structure

CAS: 2216-52-6
Formula: C₁₀H₂₀O
MW: 156.26 g/mol

VQ-025532

Reference Standard

(+)-Noradrenaline Bitartrate chemical structure

(+)-Noradrenaline Bitartrate

CAS: 636-88-4
Formula: C₁₂H₁₇NO₉
MW: 319.26 g/mol

VQ-026943

Reference Standard

(+)-Pimaric acid chemical structure

(+)-Pimaric acid

CAS: 127-27-5
Formula: C₂₀H₃₀O₂
MW: 302.5 g/mol

VQ-043355

Reference Standard

(+)-Prostaglandin E1 chemical structure

(+)-Prostaglandin E1

CAS: 38360-96-2
Formula: C₂₀H₃₄O₅
MW: 354.5 g/mol

VQ-047372

Reference Standard

(+)-Pulegone chemical structure

CAS: 89-82-7
Formula: C₁₀H₁₆O
MW: 152.23 g/mol

VQ-032415

Reference Standard

(+)-Rhoeadine chemical structure

CAS: 2718-25-4
Formula: C₂₁H₂₁NO₆
MW: 383.4 g/mol

VQ-040773

Reference Standard

(+)-Tetrabenazine chemical structure

(+)-Tetrabenazine

CAS: 1026016-83-0
Formula: C₁₉H₂₇NO₃
MW: 317.4 g/mol

VQ-034165

Reference Standard

(+)-Tranylcypromine Hydrochloride chemical structure

(+)-Tranylcypromine Hydrochloride

CAS: 4548-34-9
Formula: C₉H₁₂ClN
MW: 169.65 g/mol

VQ-042648

Reference Standard

(+)-Tranylcypromine-d5 Hydrochloride chemical structure

(+)-Tranylcypromine-d5 Hydrochloride

CAS: 107077-98-5
Formula: C₉H₁₂ClN
MW: 174.68 g/mol

VQ-042651

Reference Standard

(+)-β-Dihydrotetrabenazine chemical structure

(+)-β-Dihydrotetrabenazine

CAS: 924854-60-4
Formula: C₁₉H₂₉NO₃
MW: 319.4 g/mol

VQ-028305

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