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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

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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

Prochlorperazine EP Impurity A chemical structure

Prochlorperazine EP Impurity A

CAS: 10078-27-0
Formula: C₂₀H₂₄ClN₃OS
MW: 389.9 g/mol

VQ-023559

Reference Standard

Prochlorperazine EP Impurity C chemical structure

Prochlorperazine EP Impurity C

CAS: 1346602-34-3
Formula: C₂₀H₂₄ClN₃S
MW: 373.9 g/mol

VQ-033335

Reference Standard

Prochlorperazine HCl

Prochlorperazine HCl

CAS: 60-90-2
Formula: C₂₀H₂₄ClN₃S : HCl
MW: 410.4 g/mol

VQ-044542

Reference Standard

Prochlorperazine Sulfinyl-5-Oxide chemical structure

Prochlorperazine Sulfinyl-5-Oxide

CAS: 879495-68-8
Formula: C₂₀H₂₄ClN₃O₂S
MW: 405.9 g/mol

VQ-041678

Reference Standard

Prochlorperazine Sulfone

Prochlorperazine Sulfone

CAS: 103509-14-4
Formula: C₂₀H₂₄ClN₃O₂S
MW: 405.94 g/mol

VQ-041679

Reference Standard

Procyanidin B2 chemical structure

CAS: 29106-49-8
Formula: C₃₀H₂₆O₁₂
MW: 578.5 g/mol

VQ-041682

Reference Standard

Procyanidin B3 chemical structure

CAS: 23567-23-9
Formula: C₃₀H₂₆O₁₂
MW: 578.5 g/mol

VQ-041684

Reference Standard

Procyclidine Hydrochloride chemical structure

Procyclidine Hydrochloride

CAS: 1508-76-5
Formula: C₁₉H₃₀ClNO
MW: 323.9 g/mol

VQ-041686

Reference Standard

Profenofos chemical structure

CAS: 41198-08-7
Formula: C₁₁H₁₅BrClO₃PS
MW: 373.63 g/mol

VQ-038980

Reference Standard

Progesterone 20-Hydroxy Impurity chemical structure

Progesterone 20-Hydroxy Impurity

CAS: 151122-70-2
Formula: C₂₂H₃₂O₃
MW: 344.5 g/mol

VQ-033338

Reference Standard

Progesterone 6-Oxo Impurity chemical structure

Progesterone 6-Oxo Impurity

CAS: 2243-08-5
Formula: C₂₁H₂₈O₃
MW: 328.4 g/mol

VQ-027637

Reference Standard

Progesterone Acetal Impurity chemical structure

Progesterone Acetal Impurity

CAS: 1051-35-0
Formula: C₂₃H₃₄O₃
MW: 358.5 g/mol

VQ-048119

Reference Standard

Progesterone Bisnoraldehyde Impurity chemical structure

Progesterone Bisnoraldehyde Impurity

CAS: 81201-82-3
Formula: C₂₂H₃₀O₂
MW: 326.5 g/mol

VQ-027638

Reference Standard

Progesterone Di-isopropylidene Impurity chemical structure

Progesterone Di-isopropylidene Impurity

CAS: 984-40-7
Formula: C₂₅H₃₈O₄
MW: 402.6 g/mol

VQ-041694

Reference Standard

Progesterone EP Impurity A chemical structure

Progesterone EP Impurity A

CAS: 24377-08-0
Formula: C₂₁H₂₈O₂
MW: 312.4 g/mol

VQ-027643

Reference Standard

Progesterone EP Impurity B chemical structure

Progesterone EP Impurity B

CAS: 145-14-2
Formula: C₂₁H₃₂O₂
MW: 316.5 g/mol

VQ-023567

Reference Standard

Progesterone EP Impurity C chemical structure

Progesterone EP Impurity C

CAS: 145-15-3
Formula: C₂₁H₃₂O₂
MW: 316.5 g/mol

VQ-021323

Reference Standard

Progesterone EP Impurity D chemical structure

Progesterone EP Impurity D

CAS: 5035-09-6
Formula: C₂₃H₃₄O₃
MW: 358.5 g/mol

VQ-027640

Reference Standard

Progesterone EP Impurity E chemical structure

Progesterone EP Impurity E

CAS: 5062-62-4
Formula: C₂₃H₃₄O₃
MW: 358.5 g/mol

VQ-023568

Reference Standard

Progesterone EP Impurity F chemical structure

Progesterone EP Impurity F

CAS: 2257421-78-4
Formula: C₂₇H₃₈O₂
MW: 394.6 g/mol

VQ-023573

Reference Standard

Progesterone EP Impurity G chemical structure

Progesterone EP Impurity G

CAS: 2257421-79-5
Formula: C₂₇H₃₈O₂
MW: 394.6 g/mol

VQ-023570

Reference Standard

Progesterone EP Impurity H chemical structure

Progesterone EP Impurity H

CAS: 1162-56-7
Formula: C₂₁H₂₈O₂
MW: 312.4 g/mol

VQ-023569

Reference Standard

Progesterone EP Impurity I chemical structure

Progesterone EP Impurity I

CAS: 24254-01-1
Formula: C₂₂H₃₂O₂
MW: 328.5 g/mol

VQ-023572

Reference Standard

Progesterone EP Impurity I (S-Isomer) chemical structure

Progesterone EP Impurity I (S-Isomer)

CAS: 3986-89-8
Formula: C₂₂H₃₂O₂
MW: 328.5 g/mol

VQ-021325

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