Skip to content

Impurities & Reference Standards

Pharmacopeial Impurities (EP / USP / BP)

578 pharmacopeial impurities (ep / usp / bp) with CAS numbers, structures and specifications — batch COA and GHS SDS supplied.

4,399products

427in stock

COA + SDSwith every lot

Reference Standard

Glipizide EP Impurity A (Sodium Salt) chemical structure

Glipizide EP Impurity A (Sodium Salt)

CAS: 84522-34-9
Formula: C₁₄H₁₆N₄NaO₃S
MW: 343.36 g/mol

VQ-006419

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

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

Glutathione EP Impurity A chemical structure

Glutathione EP Impurity A

CAS: 19246-18-5
Formula: C₅H₁₀N₂O₃S
MW: 178.21 g/mol

VQ-026010

Reference Standard

Glutathione EP Impurity D chemical structure

Glutathione EP Impurity D

CAS: 636-58-8
Formula: C₈H₁₄N₂O₅S
MW: 250.27 g/mol

VQ-026011

Reference Standard

Glyceryl Trinitrate BP Impurity E chemical structure

Glyceryl Trinitrate BP Impurity E

CAS: 623-87-0
Formula: C₃H₆N₂O₇
MW: 182.09 g/mol

VQ-032354

Reference Standard

Glycopyrronium Bromide EP Impurity G chemical structure

Glycopyrronium Bromide EP Impurity G

CAS: 13118-11-1
Formula: C₁₈H₂₅NO₃
MW: 303.4 g/mol

VQ-026014

Reference Standard

Glycopyrronium Bromide EP Impurity G Hydrochloride chemical structure

Glycopyrronium Bromide EP Impurity G Hydrochloride

CAS: 13118-10-0
Formula: C₁₈H₂₆ClNO₃
MW: 339.9 g/mol

VQ-026017

Reference Standard

Glycopyrronium Bromide EP Impurity H chemical structure

Glycopyrronium Bromide EP Impurity H

CAS: 15206-55-0
Formula: C₉H₈O₃
MW: 164.16 g/mol

VQ-026016

Reference Standard

Glycopyrronium Bromide EP Impurity I

Glycopyrronium Bromide EP Impurity I

CAS: 1404617-94-2
Formula: C₁₉H₂₇BrClNO₃
MW: 432.78 g/mol

VQ-045257

Reference Standard

Glycopyrronium Bromide EP Impurity K chemical structure

Glycopyrronium Bromide EP Impurity K

CAS: 3900-93-4
Formula: C₁₃H₁₆O₂
MW: 204.26 g/mol

VQ-031021

Reference Standard

Glycopyrronium Bromide EP Impurity L chemical structure

Glycopyrronium Bromide EP Impurity L

CAS: 19833-96-6
Formula: C₁₄H₁₈O₃
MW: 234.29 g/mol

VQ-026013

Reference Standard

Glycopyrronium Bromide EP Impurity M chemical structure

Glycopyrronium Bromide EP Impurity M

CAS: 5422-88-8
Formula: C₁₂H₁₄O
MW: 174.24 g/mol

VQ-027153

Reference Standard

Glycopyrronium Bromide EP Impurity N chemical structure

Glycopyrronium Bromide EP Impurity N

CAS: 58493-54-2
Formula: C₁₉H₂₈BrNO₃
MW: 398.3 g/mol

VQ-031022

Reference Standard

Gonadorelin EP Impurity C chemical structure

Gonadorelin EP Impurity C

CAS: 37783-53-2
Formula: C₄₈H₆₅N₁₅O₁₁
MW: 1028.1 g/mol

VQ-037557

Reference Standard

Gonadorelin EP Impurity F chemical structure

Gonadorelin EP Impurity F

CAS: 35263-73-1
Formula: C₅₅H₇₄N₁₆O₁₄
MW: 1183.3 g/mol

VQ-037558

Reference Standard

Goserelin EP Impurity A chemical structure

Goserelin EP Impurity A

CAS: 1926163-39-4
Formula: C₅₉H₈₄N₁₈O₁₄
MW: 1269.4 g/mol

VQ-026021

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