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Impurities & Reference Standards

API Impurities

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

14,252products

1,516in stock

COA + SDSwith every lot

Reference Standard

Afatinib Dimer impurity chemical structure

Afatinib Dimer impurity

CAS: 2223677-65-2
Formula: C₃₈H₃₀Cl₂F₂N₈O₆
MW: 803.6 g/mol

VQ-021451

Reference Standard

Afatinib dimethyloxalamide impurity chemical structure

Afatinib dimethyloxalamide impurity

CAS: 2223677-66-3
Formula: C₂₂H₂₁ClFN₅O₄
MW: 473.9 g/mol

VQ-021450

Reference Standard

Afatinib Impurity C chemical structure

Afatinib Impurity C

CAS: 945553-91-3
Formula: C₂₄H₂₅ClFN₅O₃
MW: 485.9 g/mol

VQ-020745

Reference Standard

Afatinib Impurity J chemical structure

Afatinib Impurity J

CAS: 1456696-14-2
Formula: C₁₈H₂₂N₄O₄
MW: 358.4 g/mol

VQ-021449

Reference Standard

Afatinib Malonic acid Adduct chemical structure

Afatinib Malonic acid Adduct

CAS: 2413212-27-6
Formula: C₂₇H₂₇ClFN₅O₇
MW: 588 g/mol

VQ-035431

Reference Standard

Afatinib Nitroquinazolinol Impurity chemical structure

Afatinib Nitroquinazolinol Impurity

CAS: 1449430-45-8
Formula: C₁₄H₈ClFN₄O₃
MW: 334.69 g/mol

VQ-021444

Reference Standard

Afatinib Sulfonic Acid Analog

Afatinib Sulfonic Acid Analog

CAS: 2283295-16-7
Formula: C₂₄H₂₇ClFN₅O₆S
MW: 568 g/mol

VQ-035633

Reference Standard

Aflatoxin B1 chemical structure

CAS: 1162-65-8
Formula: C₁₇H₁₂O₆
MW: 312.27 g/mol

VQ-027097

Reference Standard

Aflatoxin G1 chemical structure

CAS: 1165-39-5
Formula: C₁₇H₁₂O₇
MW: 328.27 g/mol

VQ-027099

Reference Standard

Afoxolaner chemical structure

CAS: 1093861-60-9
Formula: C₂₆H₁₇ClF₉N₃O₃
MW: 625.9 g/mol

VQ-027228

Reference Standard

AGL-5th Isomer chemical structure

CAS: 158504-24-6
Formula: C₁₅H₁₇NO₂
MW: 243.3 g/mol

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Reference Standard

Agmatidine chemical structure

CAS: 1221169-70-5
Formula: C₁₄H₂₅N₇O₄
MW: 355.39 g/mol

VQ-042767

Reference Standard

Agmatine Sulfate chemical structure

Agmatine Sulfate

CAS: 2482-00-0
Formula: C₅H₁₆N₄O₄S
MW: 228.27 g/mol

VQ-035638

Reference Standard

Agomelatine acetic acid ethyl ester chemical structure

Agomelatine acetic acid ethyl ester

CAS: 6836-20-0
Formula: C₁₅H₁₈O₃
MW: 246.3 g/mol

VQ-043961

Reference Standard

Agomelatine Dimer Acetamide chemical structure

Agomelatine Dimer Acetamide

CAS: 1385018-58-5
Formula: C₂₈H₂₉NO₃
MW: 427.5 g/mol

VQ-021458

Reference Standard

Agomelatine Dimer Urea chemical structure

Agomelatine Dimer Urea

CAS: 185421-27-6
Formula: C₂₇H₂₈N₂O₃
MW: 428.5 g/mol

VQ-021454

Reference Standard

Agomelatine Impurity 17 chemical structure

Agomelatine Impurity 17

CAS: 127299-26-7
Formula: C₁₃H₁₃NO
MW: 199.25 g/mol

VQ-045392

Reference Standard

Agomelatine Impurity C chemical structure

Agomelatine Impurity C

CAS: 1607465-50-8
Formula: C₁₄H₁₇NO₂
MW: 231.29 g/mol

VQ-021461

Reference Standard

Agomelatine Nitrile Impurity chemical structure

Agomelatine Nitrile Impurity

CAS: 861960-34-1
Formula: C₁₃H₁₃NO
MW: 199.25 g/mol

VQ-023407

Reference Standard

Agomelatine Urea chemical structure

Agomelatine Urea

CAS: 1366181-82-9
Formula: C₁₆H₂₁N₃O₃
MW: 303.36 g/mol

VQ-024172

Reference Standard

Alanyl Glutamine Impurity 1 chemical structure

Alanyl Glutamine Impurity 1

CAS: 888939-48-8
Formula: C₁₆H₁₇N₃O₆
MW: 347.32 g/mol

VQ-048455

Reference Standard

Alarelin Acetate chemical structure

Alarelin Acetate

CAS: 79561-22-1
Formula: C₆₀H₈₆N₁₆O₁₆
MW: 1287.4 g/mol

VQ-039150

Reference Standard

Albaconazole chemical structure

CAS: 187949-02-6
Formula: C₂₀H₁₆ClF₂N₅O₂
MW: 431.8 g/mol

VQ-035642

Reference Standard

Albendazole Chlorosulfonyl Analog chemical structure

Albendazole Chlorosulfonyl Analog

CAS: 79213-74-4
Formula: C₉H₈ClN₃O₄S
MW: 289.7 g/mol

VQ-035130

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