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

Glipizide EP Impurity C chemical structure

Glipizide EP Impurity C

CAS: 13554-93-3
Formula: C₁₈H₂₇N₃O₅S
MW: 397.5 g/mol

VQ-026001

Reference Standard

Glipizide EP Impurity D chemical structure

Glipizide EP Impurity D

CAS: 1346600-54-1
Formula: C₁₄H₁₆N₄O₃S
MW: 320.37 g/mol

VQ-026003

Reference Standard

Glipizide EP Impurity E chemical structure

Glipizide EP Impurity E

CAS: 66375-96-0
Formula: C₂₁H₂₇N₅O₄S
MW: 445.5 g/mol

VQ-026002

Reference Standard

Glipizide EP Impurity F chemical structure

Glipizide EP Impurity F

CAS: 192118-08-4
Formula: C₁₁H₁₆N₂O₄S
MW: 272.32 g/mol

VQ-025999

Reference Standard

Glipizide EP Impurity G chemical structure

Glipizide EP Impurity G

CAS: 33288-74-3
Formula: C₁₆H₁₈N₄O₅S
MW: 378.4 g/mol

In stock

Reference Standard

Glipizide EP Impurity H chemical structure

Glipizide EP Impurity H

CAS: 10080-05-4
Formula: C₁₅H₂₃N₃O₃S
MW: 325.4 g/mol

VQ-026000

Reference Standard

Glipizide EP Impurity I chemical structure

Glipizide EP Impurity I

CAS: 10079-35-3
Formula: C₂₂H₃₄N₄O₄S
MW: 450.6 g/mol

VQ-025992

Reference Standard

Glipizide-d11 chemical structure

CAS: 1189426-07-0
Formula: C₂₁H₂₇N₅O₄S
MW: 456.6 g/mol

VQ-031009

Reference Standard

Gliquidone chemical structure

CAS: 33342-05-1
Formula: C₂₇H₃₃N₃O₆S
MW: 527.6 g/mol

VQ-037532

Reference Standard

Glu 24-Glucagon

Glu 24-Glucagon

CAS: 308356-99-2
Formula: C₁₅₃H₂₂₄N₄₂O₅₀S
MW: 3483.73 g/mol

VQ-044737

Reference Standard

Glu 3-Glucagon

CAS: 108997-34-8
Formula: -
MW: 3483.78 g/mol

VQ-044736

Reference Standard

Glu-4-Oxytocin chemical structure

CAS: 4314-67-4
Formula: C₄₃H₆₅N₁₁O₁₃S₂
MW: 1008.2 g/mol

VQ-027345

Reference Standard

Glucagon

CAS: 16941-32-5
Formula: C₁₅₃H₂₂₅N₄₃O₄₉S
MW: 3482.7 g/mol

VQ-037534

Reference Standard

Glucopyranose chemical structure

CAS: 54-17-1
Formula: C₆H₁₂O₆
MW: 180.16 g/mol

VQ-028488

Reference Standard

Glucoraphanin chemical structure

CAS: 21414-41-5
Formula: C₁₂H₂₃NO₁₀S₃
MW: 437.5 g/mol

VQ-040539

Reference Standard

Glucoraphasatin Potassium Salt chemical structure

Glucoraphasatin Potassium Salt

CAS: 245550-64-5
Formula: C₁₂H₂₀KNO₉S₃
MW: 457.6 g/mol

VQ-041042

Reference Standard

Glucosamine chemical structure

CAS: 3416-24-8
Formula: C₆H₁₃NO₅
MW: 179.17 g/mol

VQ-027171

Reference Standard

Glucosamine EP Impurity A chemical structure

Glucosamine EP Impurity A

CAS: 72-87-7
Formula: C₈H₁₅NO₆
MW: 221.21 g/mol

VQ-034941

Reference Standard

Glucosamine EP Impurity B chemical structure

Glucosamine EP Impurity B

CAS: 13185-73-4
Formula: C₁₂H₂₀N₂O₈
MW: 320.3 g/mol

VQ-022768

Reference Standard

Glucosamine EP Impurity C chemical structure

Glucosamine EP Impurity C

CAS: 17460-13-8
Formula: C₁₂H₂₀N₂O₇
MW: 304.3 g/mol

VQ-026009

Reference Standard

Glucosamine Sulfate Potassium Chloride chemical structure

Glucosamine Sulfate Potassium Chloride

CAS: 1296149-08-0
Formula: C₁₂H₂₈Cl₂K₂N₂O₁₄S
MW: 605.5 g/mol

VQ-026008

Reference Standard

Glucosamine Sulfate Sodium Chloride chemical structure

Glucosamine Sulfate Sodium Chloride

CAS: 1296149-13-7
Formula: C₁₂H₂₈Cl₂N₂Na₂O₁₄S
MW: 573.3 g/mol

VQ-037536

Reference Standard

Glucosamine sulphate chemical structure

Glucosamine sulphate

CAS: 29031-19-4
Formula: C₁₂H₂₈N₂O₁₄S
MW: 456.42 g/mol

VQ-037535

Reference Standard

Glucose - Impurity C chemical structure

Glucose - Impurity C

CAS: 113158-51-3
Formula: C₁₈H₃₂O₁₆
MW: 504.4 g/mol

VQ-040165

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