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Impurities & Reference Standards

API Impurities

Source 1942 api impurities for research, QC and production, documented with COA and SDS.

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COA + SDSwith every lot

Reference Standard

Saxagliptin Amide Impurity chemical structure

Saxagliptin Amide Impurity

CAS: 1496712-39-0
Formula: C₁₈H₂₇N₃O₃
MW: 333.4 g/mol

In stock

Reference Standard

Saxagliptin Impurity 41 chemical structure

Saxagliptin Impurity 41

CAS: 865999-67-3
Formula: C₆H₉ClN₂
MW: 144.6 g/mol

VQ-042113

Reference Standard

Saxagliptin Impurity 49 chemical structure

Saxagliptin Impurity 49

CAS: 214193-11-0
Formula: C₁₃H₂₁NO₄
MW: 255.31 g/mol

VQ-044651

Reference Standard

Saxagliptin Impurity KSM-2 chemical structure

Saxagliptin Impurity KSM-2

CAS: 709031-45-8
Formula: C₆H₁₀N₂O
MW: 126.16 g/mol

VQ-033777

Reference Standard

Saxagliptin O-Sulfate chemical structure

Saxagliptin O-Sulfate

CAS: 1429782-94-4
Formula: C₁₈H₂₅N₃O₅S
MW: 395.5 g/mol

VQ-044164

Reference Standard

Saxagliptin RRR Isomer chemical structure

Saxagliptin RRR Isomer

CAS: 1312338-82-1
Formula: C₇H₁₄N₂O₄S
MW: 222.26 g/mol

VQ-035238

Reference Standard

Scopine chemical structure

CAS: 498-45-3
Formula: C₈H₁₃NO₂
MW: 155.19 g/mol

VQ-032842

Reference Standard

Scopine Hydrochloride chemical structure

Scopine Hydrochloride

CAS: 85700-55-6
Formula: C₈H₁₄ClNO₂
MW: 191.65 g/mol

VQ-034289

Reference Standard

Scopolamine chemical structure

CAS: 51-34-3
Formula: C₁₇H₂₁NO₄
MW: 303.35 g/mol

VQ-027992

Reference Standard

Scopolamine Hydrobromide Trihydrate chemical structure

Scopolamine Hydrobromide Trihydrate

CAS: 6533-68-2
Formula: C₁₇H₂₈BrNO₇
MW: 438.3 g/mol

VQ-022814

Reference Standard

Scopolamine Sulfate chemical structure

Scopolamine Sulfate

CAS: 866926-81-0
Formula: C₁₇H₂₁NO₇S
MW: 383.4 g/mol

VQ-033790

Reference Standard

Scopoline Methobromide chemical structure

Scopoline Methobromide

CAS: 845870-40-8
Formula: C₉H₁₆BrNO₂
MW: 250.13 g/mol

VQ-021352

Reference Standard

Sec-Butyl Chloroacetate

Sec-Butyl Chloroacetate

CAS: 17696-64-9
Formula: C₆H₁₁ClO₂
MW: 150.6 g/mol

VQ-043477

Reference Standard

Secnidazole Impurity B chemical structure

Secnidazole Impurity B

CAS: 56750-04-0
Formula: C₇H₁₁N₃O₃
MW: 185.18 g/mol

VQ-027995

Reference Standard

Seco Everolimus B chemical structure

Seco Everolimus B

CAS: 769905-89-7
Formula: C₅₃H₈₅NO₁₅
MW: 976.2 g/mol

VQ-030639

Reference Standard

Seco-Temsirolimus chemical structure

Seco-Temsirolimus

CAS: 1062122-60-4
Formula: C₅₆H₈₇NO₁₆
MW: 1030.3 g/mol

VQ-043315

Reference Standard

Seladelpar Methyl Impurity

Seladelpar Methyl Impurity

CAS: 851528-77-3
Formula: C₂₀H₂₁F₃O₅S
MW: 430.4 g/mol

VQ-042125

Reference Standard

Selatinib chemical structure

CAS: 1275595-86-2
Formula: C₂₉H₂₆ClFN₄O₃S
MW: 565.1 g/mol

VQ-026367

Reference Standard

Selexipag Acid Impurity chemical structure

Selexipag Acid Impurity

CAS: 475085-57-5
Formula: C₂₅H₂₉N₃O₃
MW: 419.5 g/mol

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Reference Standard

Selexipag Ethyl ester impurity chemical structure

Selexipag Ethyl ester impurity

CAS: 2287345-22-4
Formula: C₂₇H₃₃N₃O₃
MW: 447.6 g/mol

VQ-023745

Reference Standard

Selexipag Hydroxy Impurity chemical structure

Selexipag Hydroxy Impurity

CAS: 18591-57-6
Formula: C₁₆H₁₂N₂O
MW: 248.28 g/mol

In stock

Reference Standard

Selexipag Impurity D chemical structure

Selexipag Impurity D

CAS: 475084-96-9
Formula: C₂₉H₃₇N₃O₃
MW: 475.6 g/mol

VQ-023744

Reference Standard

Selpercatinib Amide Impurity

Selpercatinib Amide Impurity

CAS: 2817648-27-2
Formula: C₂₉H₃₃N₇O₄
MW: 543.63 g/mol

VQ-045431

Reference Standard

Selumetinib Impurity 20 chemical structure

Selumetinib Impurity 20

CAS: 606144-02-9
Formula: C₁₆H₁₂BrClFN₃O₂
MW: 412.6 g/mol

In stock

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