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

Fulvestrant Impurity 2 chemical structure

Fulvestrant Impurity 2

CAS: 1621885-80-0
Formula: C₃₀H₄₆O₆S
MW: 534.7 g/mol

VQ-037449

Reference Standard

Fulvestrant Impurity 21 chemical structure

Fulvestrant Impurity 21

CAS: 23433-07-0
Formula: C₉H₂₀O₂
MW: 160.25 g/mol

VQ-048480

Reference Standard

Fulvestrant Impurity 22 chemical structure

Fulvestrant Impurity 22

CAS: 875573-60-7
Formula: C₃₅H₆₀O₄Si
MW: 572.9 g/mol

VQ-025936

Reference Standard

Fulvestrant Impurity 27 chemical structure

Fulvestrant Impurity 27

CAS: 875573-64-1
Formula: C₂₉H₄₆O₄
MW: 458.7 g/mol

VQ-048476

Reference Standard

Fulvestrant Impurity 3 chemical structure

Fulvestrant Impurity 3

CAS: 1621885-81-1
Formula: C₃₀H₄₄O₇S
MW: 548.7 g/mol

VQ-037450

Reference Standard

Fulvestrant Impurity 4 chemical structure

Fulvestrant Impurity 4

CAS: 1621885-82-2
Formula: C₃₀H₄₄O₆S
MW: 532.7 g/mol

VQ-037451

Reference Standard

Fulvestrant isomer impurity

Fulvestrant isomer impurity

CAS: 2490287-87-9
Formula: C₂₉H₄₃BrO₃
MW: 519.56 g/mol

VQ-030903

Reference Standard

Fulvestrant R enantiomer chemical structure

Fulvestrant R enantiomer

CAS: 1807900-80-6
Formula: C₃₂H₄₇F₅O₃S
MW: 606.8 g/mol

VQ-030905

Reference Standard

Fulvestrant S enantiomer chemical structure

Fulvestrant S enantiomer

CAS: 1316849-17-8
Formula: C₃₂H₄₇F₅O₃S
MW: 606.8 g/mol

VQ-030906

Reference Standard

Fulvestrant Side Chain Impurity chemical structure

Fulvestrant Side Chain Impurity

CAS: 148757-89-5
Formula: C₁₄H₂₄BrF₅S
MW: 399.3 g/mol

VQ-030907

Reference Standard

Fulvestrant-17-Glucuronide chemical structure

Fulvestrant-17-Glucuronide

CAS: 261506-28-9
Formula: C₃₈H₅₅F₅O₉S
MW: 782.9 g/mol

VQ-048481

Reference Standard

Fulvestrant-3-Glucuronide chemical structure

Fulvestrant-3-Glucuronide

CAS: 261506-27-8
Formula: C₃₈H₅₅F₅O₉S
MW: 782.9 g/mol

VQ-037453

Reference Standard

Fulvestrant-3-Sulfate

Fulvestrant-3-Sulfate

CAS: 261506-26-7
Formula: C₃₂H₄₇F₅O₆S₂
MW: 686.8 g/mol

VQ-030900

Reference Standard

Fumaric acid Monomethyl Ester-d3 chemical structure

Fumaric acid Monomethyl Ester-d3

CAS: 1616345-41-5
Formula: C₅H₆O₄
MW: 133.12 g/mol

VQ-038481

Reference Standard

Fumonisin B1 chemical structure

CAS: 116355-83-0
Formula: C₃₄H₅₉NO₁₅
MW: 721.8 g/mol

VQ-032380

Reference Standard

Fumonisin B2 chemical structure

CAS: 116355-84-1
Formula: C₃₄H₅₉NO₁₄
MW: 705.8 g/mol

VQ-038999

Reference Standard

Fungisterol chemical structure

CAS: 516-78-9
Formula: C₂₈H₄₈O
MW: 400.7 g/mol

VQ-027309

Reference Standard

Furagin chemical structure

CAS: 1672-88-4
Formula: C₁₀H₈N₄O₅
MW: 264.19 g/mol

VQ-030908

Reference Standard

Furaltadone chemical structure

CAS: 139-91-3
Formula: C₁₃H₁₆N₄O₆
MW: 324.29 g/mol

VQ-037455

Reference Standard

Furaltadone Hydrochloride chemical structure

Furaltadone Hydrochloride

CAS: 3759-92-0
Formula: C₁₃H₁₇ClN₄O₆
MW: 360.75 g/mol

VQ-037456

Reference Standard

Furaltadone-d5 chemical structure

CAS: 1015855-64-7
Formula: C₁₃H₁₆N₄O₆
MW: 329.32 g/mol

VQ-037457

Reference Standard

Furan-2,5-diyldimethanediyl dioctadecanoate chemical structure

Furan-2,5-diyldimethanediyl dioctadecanoate

CAS: 1335042-56-2
Formula: C₄₂H₇₆O₅
MW: 661 g/mol

VQ-039896

Reference Standard

Furazidin Sodium chemical structure

Furazidin Sodium

CAS: 22060-47-5
Formula: C₁₀H₇N₄NaO₅
MW: 286.18 g/mol

VQ-037458

Reference Standard

Furazolidone-D4 chemical structure

Furazolidone-D4

CAS: 1217222-76-8
Formula: C₈H₇N₃O₅
MW: 229.18 g/mol

VQ-048482

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