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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.

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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

Nebivolol Impurity 2 HCl (SR,RS) chemical structure

Nebivolol Impurity 2 HCl (SR,RS)

CAS: 920275-19-0
Formula: C₂₂H₂₆ClF₂NO₄
MW: 441.9 g/mol

VQ-032086

Reference Standard

Nebivolol Impurity 26 chemical structure

Nebivolol Impurity 26

CAS: 1803397-45-6
Formula: C₂₉H₃₂ClF₂NO₄
MW: 532 g/mol

VQ-044127

Reference Standard

Nebivolol Impurity 40 (SRSS) chemical structure

Nebivolol Impurity 40 (SRSS)

CAS: 129101-35-5
Formula: C₂₂H₂₆FNO₄
MW: 387.4 g/mol

VQ-032092

Reference Standard

Nebivolol Impurity 41 (SRRR) chemical structure

Nebivolol Impurity 41 (SRRR)

CAS: 1696472-14-6
Formula: C₂₂H₂₆FNO₄
MW: 387.4 g/mol

VQ-038569

Reference Standard

Nebivolol Impurity 5 chemical structure

Nebivolol Impurity 5

CAS: 99199-91-4
Formula: C₁₈H₂₀FNO₂
MW: 301.4 g/mol

VQ-032081

Reference Standard

Nebivolol Impurity 5 (RRSR) (HCl)

Nebivolol Impurity 5 (RRSR) (HCl)

CAS: 920275-20-3
Formula: C₂₂H₂₅F₂NO₄ : HCl
MW: 441.9 g/mol

VQ-038563

Reference Standard

Nebivolol Impurity 64 chemical structure

Nebivolol Impurity 64

CAS: 620176-90-1
Formula: C₁₁H₁₁FO₂
MW: 194.2 g/mol

VQ-049204

Reference Standard

Nebivolol RRRS isomer

Nebivolol RRRS isomer

CAS: 1030385-17-1
Formula: C₂₉H₃₁F₂NO₄
MW: 495.56 g/mol

VQ-032088

Reference Standard

Nebivolol SSRS=SRSS Isomer (HCl Salt) chemical structure

Nebivolol SSRS=SRSS Isomer (HCl Salt)

CAS: 920299-27-0
Formula: C₂₂H₂₅F₂NO₄
MW: 405.4 g/mol

VQ-026845

Reference Standard

Nebivolol USP Related Compound C chemical structure

Nebivolol USP Related Compound C

CAS: 876514-31-7
Formula: C₁₁H₁₁FO₂
MW: 194.2 g/mol

VQ-023216

Reference Standard

Nebivolol USP Related Compound D chemical structure

Nebivolol USP Related Compound D

CAS: 793669-26-8
Formula: C₁₁H₁₁FO₂
MW: 194.2 g/mol

VQ-023215

Reference Standard

Nebramine chemical structure

CAS: 34051-04-2
Formula: C₁₂H₂₆N₄O₅
MW: 306.36 g/mol

VQ-021353

Reference Standard

Nebramine Disulfate chemical structure

Nebramine Disulfate

CAS: 71122-29-7
Formula: C₁₂H₂₆N₄O₅
MW: 306.36 g/mol

VQ-028414

Reference Standard

Nebramycin Factor 11 chemical structure

Nebramycin Factor 11

CAS: 64332-33-8
Formula: C₁₉H₃₈N₆O₁₀
MW: 510.5 g/mol

VQ-034302

Reference Standard

Nebrosamine Dihydrochloride chemical structure

Nebrosamine Dihydrochloride

CAS: 111170-72-0
Formula: C₆H₁₆Cl₂N₂O₃
MW: 235.11 g/mol

VQ-043667

Reference Standard

Nedocromil chemical structure

CAS: 69049-73-6
Formula: C₁₉H₁₇NO₇
MW: 371.3 g/mol

VQ-038576

Reference Standard

Nefopam chemical structure

CAS: 13669-70-0
Formula: C₁₇H₁₉NO
MW: 253.34 g/mol

VQ-026851

Reference Standard

Nefopam HCL Impurity D chemical structure

Nefopam HCL Impurity D

CAS: 13831-42-0
Formula: C₁₇H₂₁NO
MW: 255.35 g/mol

VQ-023222

Reference Standard

Nefopam Hydrochloride chemical structure

Nefopam Hydrochloride

CAS: 23327-57-3
Formula: C₁₇H₂₀ClNO
MW: 289.8 g/mol

VQ-038577

Reference Standard

Nefopam N-Oxide chemical structure

Nefopam N-Oxide

CAS: 66091-32-5
Formula: C₁₇H₁₉NO₂
MW: 269.34 g/mol

VQ-023221

Reference Standard

Nefopam-d3 Hydrochloride chemical structure

Nefopam-d3 Hydrochloride

CAS: 1346603-30-2
Formula: C₁₇H₂₀ClNO
MW: 292.8 g/mol

VQ-049209

Reference Standard

Nelarabine chemical structure

CAS: 121032-29-9
Formula: C₁₁H₁₅N₅O₅
MW: 297.27 g/mol

VQ-026855

Reference Standard

Nelarabine regio isomer impurity chemical structure

Nelarabine regio isomer impurity

CAS: 1233127-29-1
Formula: C₁₁H₁₅N₅O₅
MW: 297.27 g/mol

VQ-032094

Reference Standard

Nelarabine α-isomer impurity chemical structure

Nelarabine α-isomer impurity

CAS: 1305196-84-2
Formula: C₁₁H₁₅N₅O₅
MW: 297.27 g/mol

VQ-032095

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