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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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Reference Standard

Mirabegron Impurity 5 chemical structure

Mirabegron Impurity 5

CAS: 2036283-13-1
Formula: C₁₀H₁₀N₄O₃S₂
MW: 298.3 g/mol

In stock

Reference Standard

Mirabegron Impurity 5 (Hydrochloride)

Mirabegron Impurity 5 (Hydrochloride)

Formula: C₁₀H₁₀N₄O₃S₂.ClH
MW: 334.8 g/mol

VQ-005290

Reference Standard

Mirabegron Impurity 58 chemical structure

Mirabegron Impurity 58

CAS: 17790-81-7
Formula: C₅H₇BrO₃
MW: 195.01 g/mol

VQ-049126

Reference Standard

Mirabegron Impurity 67 Hydrochloride chemical structure

Mirabegron Impurity 67 Hydrochloride

CAS: 2882917-53-3
Formula: C₁₇H₂₂N₂O
MW: 270.37 g/mol

VQ-038424

Reference Standard

Mirabegron Impurity 83

Mirabegron Impurity 83

CAS: 2881009-38-5
Formula: C₆H₁₀N₂O₃S
MW: 190.22 g/mol

VQ-044619

Reference Standard

Mirabegron Impurity 90 chemical structure

Mirabegron Impurity 90

CAS: 1684452-88-7
Formula: C₁₆H₁₆N₂O₄
MW: 300.31 g/mol

VQ-038425

Reference Standard

Mirabegron Impurity 91

Mirabegron Impurity 91

CAS: 1565239-56-6
Formula: C₁₆H₁₉NO
MW: 241.33 g/mol

VQ-049128

Reference Standard

Mirabegron Impurity F

Mirabegron Impurity F

CAS: 2184223-32-1
Formula: C₁₆H₁₈N₂O₃
MW: 286.33 g/mol

VQ-031937

Reference Standard

Mirabegron Impurity I (Freebase) chemical structure

Mirabegron Impurity I (Freebase)

CAS: 1892-57-5
Formula: C₈H₁₇N₃
MW: 155.24 g/mol

VQ-005291

Reference Standard

Mirabegron Impurity I (HCl) chemical structure

Mirabegron Impurity I (HCl)

CAS: 25952-53-8
Formula: C₈H₁₈ClN₃
MW: 191.7 g/mol

In stock

Reference Standard

Mirabegrone DP1 Impurity

Mirabegrone DP1 Impurity

CAS: 1884645-53-7
Formula: C₁₆H₂₀N₂O
MW: 256.34 g/mol

VQ-038423

Reference Standard

Mirdametinib Enantiomer chemical structure

Mirdametinib Enantiomer

CAS: 391210-11-0
Formula: C₁₆H₁₄F₃IN₂O₄
MW: 482.19 g/mol

VQ-049135

Reference Standard

Mirogabalin Lactam chemical structure

Mirogabalin Lactam

CAS: 3042853-06-2
Formula: C₁₂H₁₇NO
MW: 191.27 g/mol

VQ-023154

Reference Standard

Mirogabalin Nitro Tert-Butyl Ester Impurity chemical structure

Mirogabalin Nitro Tert-Butyl Ester Impurity

CAS: 1798817-68-1
Formula: C₃₂H₅₀N₂O₈
MW: 590.7 g/mol

VQ-038429

Reference Standard

Mirtazapine Cyano Impurity chemical structure

Mirtazapine Cyano Impurity

CAS: 61337-88-0
Formula: C₁₇H₁₈N₄
MW: 278.35 g/mol

VQ-026731

Reference Standard

Mirtazapine Cyano Impurity (Oxalate salt) chemical structure

Mirtazapine Cyano Impurity (Oxalate salt)

CAS: 331815-15-7
Formula: C₁₉H₂₀N₄O₄
MW: 368.4 g/mol

VQ-031954

Reference Standard

Misoprostol Acid chemical structure

Misoprostol Acid

CAS: 66792-31-2
Formula: C₂₁H₃₆O₅
MW: 368.5 g/mol

VQ-026739

Reference Standard

Mitapivat 4-Aminophenyl Impurity chemical structure

Mitapivat 4-Aminophenyl Impurity

CAS: 1179307-48-2
Formula: C₁₅H₂₁N₃O
MW: 259.35 g/mol

VQ-038439

Reference Standard

Mitapivat 4-Iodophenyl Impurity chemical structure

Mitapivat 4-Iodophenyl Impurity

CAS: 544459-53-2
Formula: C₁₅H₁₄INO₂S
MW: 399.2 g/mol

VQ-038437

Reference Standard

Mitapivat Acid Impurity chemical structure

Mitapivat Acid Impurity

CAS: 116834-64-1
Formula: C₁₆H₁₂N₂O₄S
MW: 328.3 g/mol

VQ-038441

Reference Standard

Mitapivat Des-sulfonamide Benzyl Carbamate Impurity

Mitapivat Des-sulfonamide Benzyl Carbamate Impurity

CAS: 2927905-89-1
Formula: C₂₃H₂₇N₃O₃
MW: 393.5 g/mol

VQ-038444

Reference Standard

Mitapivat Imidazole Impurity

Mitapivat Imidazole Impurity

CAS: 2329710-92-9
Formula: C₁₉H₁₄N₄O₃S
MW: 378.4 g/mol

VQ-038440

Reference Standard

Mitapivat Sulfonyl Chloride Impurity chemical structure

Mitapivat Sulfonyl Chloride Impurity

CAS: 18704-37-5
Formula: C₉H₆ClNO₂S
MW: 227.67 g/mol

VQ-044391

Reference Standard

Mitotane Related Compound A chemical structure

Mitotane Related Compound A

CAS: 72-54-8
Formula: C₁₄H₁₀Cl₄
MW: 320 g/mol

VQ-032358

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