Skip to content

Product division

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

Zasocitinib chemical structure

CAS: 2272904-53-5
Formula: C₂₃H₂₄N₈O₃
MW: 460.5 g/mol

VQ-042994

Reference Standard

Zavegepant chemical structure

CAS: 1337918-83-8
Formula: C₃₆H₄₆N₈O₃
MW: 638.8 g/mol

VQ-034730

Reference Standard

Zavegepant Desmethyl Impurity chemical structure

Zavegepant Desmethyl Impurity

CAS: 2923756-41-4
Formula: C₃₅H₄₄N₈O₃
MW: 624.8 g/mol

VQ-024046

Reference Standard

Zavegepant Hydrochloride chemical structure

Zavegepant Hydrochloride

CAS: 1414976-20-7
Formula: C₃₆H₄₇ClN₈O₃
MW: 675.3 g/mol

VQ-040115

Reference Standard

Zavegepant Impurity 11 chemical structure

Zavegepant Impurity 11

CAS: 3019989-24-0
Formula: C₄₀H₄₁N₇O₄
MW: 683.8 g/mol

VQ-034734

Reference Standard

Zearalenone chemical structure

CAS: 17924-92-4
Formula: C₁₈H₂₂O₅
MW: 318.4 g/mol

VQ-034735

Reference Standard

Zephirol chemical structure

CAS: 139-07-1
Formula: C₂₁H₃₈ClN
MW: 340 g/mol

VQ-034736

Reference Standard

Zeranol chemical structure

CAS: 26538-44-3
Formula: C₁₈H₂₆O₅
MW: 322.4 g/mol

VQ-042999

Reference Standard

Zidebactam chemical structure

CAS: 1436861-97-0
Formula: C₁₃H₂₁N₅O₇S
MW: 391.4 g/mol

VQ-043001

Reference Standard

Zidovudine chemical structure

CAS: 30516-87-1
Formula: C₁₀H₁₃N₅O₄
MW: 267.24 g/mol

VQ-024047

Reference Standard

Zidovudine EP Impurity B chemical structure

Zidovudine EP Impurity B

CAS: 25526-94-7
Formula: C₁₀H₁₃ClN₂O₄
MW: 260.67 g/mol

VQ-024048

Reference Standard

Zidovudine EP Impurity F chemical structure

Zidovudine EP Impurity F

CAS: 16053-52-4
Formula: C₁₀H₁₄N₂O₅
MW: 242.23 g/mol

VQ-028774

Reference Standard

Zidovudine EP Impurity G chemical structure

Zidovudine EP Impurity G

CAS: 148665-49-0
Formula: C₂₀H₂₅N₇O₈
MW: 491.5 g/mol

VQ-024050

Reference Standard

Zidovudine EP Impurity J chemical structure

Zidovudine EP Impurity J

CAS: 29706-84-1
Formula: C₂₉H₂₇N₅O₄
MW: 509.6 g/mol

VQ-024049

Reference Standard

Zidovudine EP Impurity K chemical structure

Zidovudine EP Impurity K

CAS: 596-31-6
Formula: C₂₀H₁₈O
MW: 274.4 g/mol

VQ-021262

Reference Standard

Ziftomenib chemical structure

CAS: 2134675-36-6
Formula: C₃₃H₄₂F₃N₉O₂S₂
MW: 717.9 g/mol

VQ-034737

Reference Standard

Zileuton chemical structure

CAS: 111406-87-2
Formula: C₁₁H₁₂N₂O₂S
MW: 236.29 g/mol

VQ-034738

Reference Standard

Zileuton - Impurity A chemical structure

Zileuton - Impurity A

CAS: 171370-49-3
Formula: C₁₁H₁₂N₂OS
MW: 220.29 g/mol

VQ-028775

Reference Standard

Zileuton Glucuronide chemical structure

Zileuton Glucuronide

CAS: 141056-63-5
Formula: C₁₇H₂₀N₂O₈S
MW: 412.4 g/mol

VQ-043351

Reference Standard

Zileuton Oxime Impurity chemical structure

Zileuton Oxime Impurity

CAS: 118564-88-8
Formula: C₁₀H₉NOS
MW: 191.25 g/mol

VQ-050044

Reference Standard

Zileuton Sulfoxide chemical structure

Zileuton Sulfoxide

CAS: 1147524-83-1
Formula: C₁₁H₁₂N₂O₃S
MW: 252.29 g/mol

VQ-034739

Reference Standard

Zileuton-d4 chemical structure

CAS: 1189878-76-9
Formula: C₁₁H₁₂N₂O₂S
MW: 240.32 g/mol

VQ-043002

Reference Standard

Zilpaterol chemical structure

CAS: 119520-05-7
Formula: C₁₄H₁₉N₃O₂
MW: 261.32 g/mol

VQ-043352

Reference Standard

Zilpaterol Hydrochloride chemical structure

Zilpaterol Hydrochloride

CAS: 119520-06-8
Formula: C₁₄H₂₀ClN₃O₂
MW: 297.78 g/mol

VQ-043003

Need a price, a spec or a custom compound?

Send us your list — product names or CAS numbers, grade, quantity and destination. Our team replies with a formal quotation, COA and lead time.

Request a quote Contact sales