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.

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

Velpatasvir Di Isomer Impurity chemical structure

Velpatasvir Di Isomer Impurity

CAS: 1493769-28-0
Formula: C₅₃H₅₄N₈O₉
MW: 947 g/mol

VQ-034560

Reference Standard

Velpatasvir Impurity 30 chemical structure

Velpatasvir Impurity 30

CAS: 1438383-89-1
Formula: C₁₉H₁₄Br₂O₃
MW: 450.1 g/mol

In stock

Reference Standard

Velpatasvir Keto Analog

Velpatasvir Keto Analog

CAS: 1493768-01-6
Formula: C₄₉H₅₂N₈O₉
MW: 896.99 g/mol

VQ-034559

Reference Standard

Velpatasvir MMP impurity

Velpatasvir MMP impurity

CAS: 138604-91-8
Formula: C₁₁H₁₃NO₄
MW: 223.23 g/mol

VQ-028651

Reference Standard

Velpatasvir-A12 chemical structure

Velpatasvir-A12

CAS: 1377604-63-1
Formula: C₄₉H₅₆N₈O₈
MW: 885 g/mol

VQ-042836

Reference Standard

Vemurafenib chemical structure

CAS: 918504-65-1
Formula: C₂₃H₁₈ClF₂N₃O₃S
MW: 489.9 g/mol

VQ-034563

Reference Standard

Venamide chemical structure

CAS: 19625-79-7
Formula: C₁₁H₁₅NO₂
MW: 193.24 g/mol

VQ-042838

Reference Standard

Venetoclax Acid Amide Dimer Impurity

Venetoclax Acid Amide Dimer Impurity

Formula: C₇₈H₈₃Cl₂N₁₁O₉S
MW: 1421.53 g/mol

In stock

Reference Standard

Venetoclax Amide Impurity

Venetoclax Amide Impurity

Formula: C₃₉H₄₆ClN₅O₃
MW: 668.27 g/mol

In stock

Reference Standard

Venetoclax API Chloro Coupled Impurity

Venetoclax API Chloro Coupled Impurity

Formula: C₆₄H₇₆ClN₉O₇S
MW: 1150.86 g/mol

In stock

Reference Standard

Venetoclax Bromo Impurity chemical structure

Venetoclax Bromo Impurity

CAS: 2180923-65-1
Formula: C₂₆H₂₄BrN₅O₇S
MW: 630.5 g/mol

In stock

Reference Standard

Venetoclax Cyclic Amide Impurity

Venetoclax Cyclic Amide Impurity

Formula: C₄₅H₄₈ClN₇O₈S
MW: 882.42 g/mol

In stock

Reference Standard

Venetoclax Des Bromo Impurity

Venetoclax Des Bromo Impurity

Formula: C₂₆H₂₅N₅O₇S
MW: 551.57 g/mol

In stock

Reference Standard

Venetoclax Des Fluoro Impurity

Venetoclax Des Fluoro Impurity

Formula: C₁₅H₁₂N₂O₃
MW: 268.27 g/mol

In stock

Reference Standard

Venetoclax Des Fluoro Sulfonamide Impurity chemical structure

Venetoclax Des Fluoro Sulfonamide Impurity

Formula: C₂₆H₂₅N₅O₇S
MW: 551.6 g/mol

In stock

Reference Standard

Venetoclax Des Fluoro Sulfonamide Impurity (Stage-2)

Venetoclax Des Fluoro Sulfonamide Impurity (Stage-2)

Formula: C₁₄H₁₀N₂O₃
MW: 254.24 g/mol

In stock

Reference Standard

Venetoclax Dimer (Intermediate)(Stage-II) chemical structure

Venetoclax Dimer (Intermediate)(Stage-II)

CAS: 1228780-51-5
Formula: C₁₅H₁₉ClO
MW: 250.76 g/mol

In stock

Reference Standard

Venetoclax Dimer Impurity chemical structure

Venetoclax Dimer Impurity

CAS: 2412506-53-5
Formula: C₉₀H₁₀₀N₁₄O₁₄S₂
MW: 1666 g/mol

In stock

Reference Standard

Venetoclax Dimer Impurity (Stage-I)

Venetoclax Dimer Impurity (Stage-I)

Formula: C₂₄H₂₈N₄O₅
MW: 452.5 g/mol

In stock

Reference Standard

Venetoclax Dimer Impurity (Stage-II)

Venetoclax Dimer Impurity (Stage-II)

Formula: C₂₃H₂₆N₄O₅
MW: 438.48 g/mol

In stock

Reference Standard

Venetoclax Dimer Impurity (Stage-III)

Venetoclax Dimer Impurity (Stage-III)

Formula: C₃₅H₄₁N₇O₉S
MW: 735.81 g/mol

In stock

Reference Standard

Venetoclax Dimer Impurity (Stage-IV)

Venetoclax Dimer Impurity (Stage-IV)

Formula: C₃₀H₃₃N₇O₇S
MW: 635.69 g/mol

VQ-006136

Reference Standard

Venetoclax DP3 Impurity

Venetoclax DP3 Impurity

Formula: C₃₂H₃₅ClN₄O.ClH
MW: 563.56 g/mol

In stock

Reference Standard

Venetoclax Ester Impurity chemical structure

Venetoclax Ester Impurity

CAS: 1235865-76-5
Formula: C₃₄H₃₇ClN₄O₃
MW: 585.1 g/mol

In stock

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