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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.

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

Diosmetin 3,7-Diglucuronide chemical structure

Diosmetin 3,7-Diglucuronide

CAS: 152503-51-0
Formula: C₂₈H₂₈O₁₈
MW: 652.5 g/mol

VQ-025334

Reference Standard

Diosmetin 7-O-beta-D-glucoside chemical structure

Diosmetin 7-O-beta-D-glucoside

CAS: 20126-59-4
Formula: C₂₂H₂₂O₁₁
MW: 462.4 g/mol

VQ-030223

Reference Standard

Diosmetin-3-O-glucuronide chemical structure

Diosmetin-3-O-glucuronide

CAS: 152503-50-9
Formula: C₂₂H₂₀O₁₂
MW: 476.4 g/mol

VQ-025333

Reference Standard

Diosmetin-7-O-beta-D-glucuronide chemical structure

Diosmetin-7-O-beta-D-glucuronide

CAS: 35110-20-4
Formula: C₂₂H₂₀O₁₂
MW: 476.4 g/mol

VQ-036725

Reference Standard

Diosmetin-d3 chemical structure

CAS: 1189728-54-8
Formula: C₁₆H₁₂O₆
MW: 303.28 g/mol

VQ-030224

Reference Standard

Diosmin EP Impurity A chemical structure

Diosmin EP Impurity A

CAS: 6100-74-9
Formula: C₉H₁₀O₃
MW: 166.17 g/mol

VQ-022400

Reference Standard

Diosmin EP Impurity C chemical structure

Diosmin EP Impurity C

CAS: 552-57-8
Formula: C₂₇H₃₀O₁₄
MW: 578.5 g/mol

VQ-022401

Reference Standard

Diosmin EP Impurity D chemical structure

Diosmin EP Impurity D

CAS: 1431536-92-3
Formula: C₂₈H₃₁IO₁₅
MW: 734.4 g/mol

VQ-022402

Reference Standard

Diosmin EP Impurity E chemical structure

Diosmin EP Impurity E

CAS: 480-36-4
Formula: C₂₈H₃₂O₁₄
MW: 592.5 g/mol

VQ-022404

Reference Standard

Diosmin Impurity 3

Diosmin Impurity 3

CAS: 80604-69-9
Formula: C₃₂H₄₀O₁₇
MW: 696.7 g/mol

VQ-036727

Reference Standard

Dioxidine chemical structure

CAS: 17311-31-8
Formula: C₁₀H₁₀N₂O₄
MW: 222.2 g/mol

VQ-036729

Reference Standard

Dioxybenzone chemical structure

CAS: 131-53-3
Formula: C₁₄H₁₂O₄
MW: 244.24 g/mol

VQ-032894

Reference Standard

Diphemanil Methosulfate chemical structure

Diphemanil Methosulfate

CAS: 62-97-5
Formula: C₂₁H₂₇NO₄S
MW: 389.5 g/mol

VQ-048032

Reference Standard

Diphenhydramine chemical structure

Diphenhydramine

CAS: 58-73-1
Formula: C₁₇H₂₁NO
MW: 255.35 g/mol

VQ-025336

Reference Standard

Diphenhydramine Citrate chemical structure

Diphenhydramine Citrate

CAS: 88637-37-0
Formula: C₂₃H₂₉NO₈
MW: 447.5 g/mol

VQ-036731

Reference Standard

Diphenhydramine EP Impurity A chemical structure

Diphenhydramine EP Impurity A

CAS: 53499-40-4
Formula: C₁₆H₂₀ClNO
MW: 277.79 g/mol

VQ-022405

Reference Standard

Diphenhydramine EP Impurity B chemical structure

Diphenhydramine EP Impurity B

CAS: 19804-27-4
Formula: C₁₈H₂₃NO
MW: 269.4 g/mol

VQ-025328

Reference Standard

Diphenhydramine EP Impurity B chemical structure

Diphenhydramine EP Impurity B

CAS: 4024-34-4
Formula: C₁₈H₂₄ClNO
MW: 305.8 g/mol

VQ-036732

Reference Standard

Diphenhydramine EP Impurity C (Freebase)/Dimenhydrinate EP Impurity H(Freebase) chemical structure

Diphenhydramine EP Impurity C (Freebase)/Dimenhydrinate EP Impurity H(Freebase)

CAS: 118-23-0
Formula: C₁₇H₂₀BrNO
MW: 334.2 g/mol

VQ-006336

Reference Standard

Diphenhydramine EP Impurity C (HCl)/Dimenhydrinate EP Impurity H(HCl) chemical structure

Diphenhydramine EP Impurity C (HCl)/Dimenhydrinate EP Impurity H(HCl)

CAS: 1808-12-4
Formula: C₁₇H₂₁BrClNO
MW: 370.7 g/mol

In stock

Reference Standard

Diphenhydramine methiodide chemical structure

Diphenhydramine methiodide

CAS: 14177-81-2
Formula: C₁₈H₂₄INO
MW: 397.3 g/mol

VQ-030229

Reference Standard

Diphenhydramine N-Glucuronide chemical structure

Diphenhydramine N-Glucuronide

CAS: 137908-78-2
Formula: C₂₃H₂₉NO₇
MW: 431.5 g/mol

VQ-031011

Reference Standard

Diphenhydramine N-Oxide chemical structure

Diphenhydramine N-Oxide

CAS: 3922-74-5
Formula: C₁₇H₂₁NO₂
MW: 271.35 g/mol

VQ-025338

Reference Standard

Diphenhydramine N-Oxide Hydrochloride chemical structure

Diphenhydramine N-Oxide Hydrochloride

CAS: 13168-00-8
Formula: C₁₇H₂₂ClNO₂
MW: 307.8 g/mol

VQ-025339

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