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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

Toxaphene Impurity 3 chemical structure

Toxaphene Impurity 3

CAS: 154159-06-5
Formula: C₁₀H₉Cl₉
MW: 448.2 g/mol

VQ-045207

Reference Standard

Toxopyrimidine chemical structure

CAS: 73-67-6
Formula: C₆H₉N₃O
MW: 139.16 g/mol

VQ-027102

Reference Standard

Trabectedin impurity A chemical structure

Trabectedin impurity A

CAS: 493024-42-3
Formula: C₃₇H₄₁N₃O₁₀S
MW: 719.8 g/mol

VQ-034372

Reference Standard

Trabectedin impurity E (14-Keto) chemical structure

Trabectedin impurity E (14-Keto)

CAS: 1376626-08-2
Formula: C₃₉H₄₁N₃O₁₁S
MW: 759.8 g/mol

VQ-034375

Reference Standard

Trabectedin impurity F (14-des hydroxy) chemical structure

Trabectedin impurity F (14-des hydroxy)

CAS: 114899-28-4
Formula: C₃₉H₄₃N₃O₁₀S
MW: 745.8 g/mol

VQ-042635

Reference Standard

Trametinib Anilide Impurity chemical structure

Trametinib Anilide Impurity

CAS: 871700-25-3
Formula: C₂₆H₂₃FIN₅O₄
MW: 615.4 g/mol

VQ-006056

Reference Standard

Trametinib Cyclopropyl Amide Acetyl Impurity

Trametinib Cyclopropyl Amide Acetyl Impurity

Formula: C₂₅H₂₅FIN₅O₃
MW: 589.4 g/mol

In stock

Reference Standard

Trametinib Cyclopropyl Amide Impurity chemical structure

Trametinib Cyclopropyl Amide Impurity

CAS: 3018911-27-5
Formula: C₁₇H₁₇FIN₃O₃
MW: 457.24 g/mol

In stock

Reference Standard

Trametinib Hydroxy Impurity chemical structure

Trametinib Hydroxy Impurity

CAS: 871700-24-2
Formula: C₁₈H₁₅FIN₃O₄
MW: 483.2 g/mol

In stock

Reference Standard

Trametinib Impurity 11 chemical structure

Trametinib Impurity 11

CAS: 871700-22-0
Formula: C₁₄H₁₃FIN₃O₂
MW: 401.17 g/mol

In stock

Reference Standard

Trametinib Nitro impurity chemical structure

Trametinib Nitro impurity

CAS: 1279693-89-8
Formula: C₂₄H₁₉FIN₅O₅
MW: 603.3 g/mol

VQ-028474

Reference Standard

Trandolapril Bicyclic Acid chemical structure

Trandolapril Bicyclic Acid

CAS: 145438-94-4
Formula: C₉H₁₅NO₂
MW: 169.22 g/mol

VQ-034385

Reference Standard

Trandolapril Cis Isomer-1

Trandolapril Cis Isomer-1

Formula: C₂₄H₃₄N₂O₅
MW: 430.54 g/mol

In stock

Reference Standard

Trandolapril Impurity (2R,3aR,7aS) Hydrochloride

Trandolapril Impurity (2R,3aR,7aS) Hydrochloride

Formula: C₁₆H₂₁NO₂.ClH
MW: 295.79 g/mol

In stock

Reference Standard

Tranexamic Acid Dimer chemical structure

Tranexamic Acid Dimer

CAS: 93940-19-3
Formula: C₁₆H₂₇NO₄
MW: 297.39 g/mol

In stock

Reference Standard

Trans (E)-Clopenthixol acetate DiHydrochlorude

Trans (E)-Clopenthixol acetate DiHydrochlorude

CAS: 3054704-10-5
Formula: C₂₄H₂₉Cl₃N₂O₂S
MW: 515.92 g/mol

VQ-043020

Reference Standard

Trans 2-(1,6-Dimethylpiperidin-3-Yl)Propan-2-Ol chemical structure

Trans 2-(1,6-Dimethylpiperidin-3-Yl)Propan-2-Ol

CAS: 2057-25-2
Formula: C₁₀H₂₁NO
MW: 171.28 g/mol

VQ-043648

Reference Standard

Trans Doxercalciferol chemical structure

Trans Doxercalciferol

CAS: 74007-20-8
Formula: C₂₈H₄₄O₂
MW: 412.6 g/mol

VQ-025395

Reference Standard

Trans Phytonadione (R,S-Isomer) chemical structure

Trans Phytonadione (R,S-Isomer)

CAS: 132487-93-5
Formula: C₃₁H₄₆O₂
MW: 450.7 g/mol

VQ-033168

Reference Standard

Trans-(-)-Paroxol / (-)-trans-4-(4-Fluorophenyl)-N-methyl-3-hydroxymethylpiperidine chemical structure

Trans-(-)-Paroxol / (-)-trans-4-(4-Fluorophenyl)-N-methyl-3-hydroxymethylpiperidine

CAS: 105812-81-5
Formula: C₁₃H₁₈FNO
MW: 223.29 g/mol

VQ-023472

Reference Standard

trans-(15S)-Latanoprost chemical structure

trans-(15S)-Latanoprost

CAS: 1235141-39-5
Formula: C₂₆H₄₀O₅
MW: 432.6 g/mol

VQ-031454

Reference Standard

trans-(4-Methylaminocyclohexyl)methanol chemical structure

trans-(4-Methylaminocyclohexyl)methanol

CAS: 400898-77-3
Formula: C₈H₁₇NO
MW: 143.23 g/mol

VQ-049288

Reference Standard

trans-1,2-Bis(chloromethyl)cyclohexane chemical structure

trans-1,2-Bis(chloromethyl)cyclohexane

CAS: 61169-66-2
Formula: C₈H₁₄Cl₂
MW: 181.1 g/mol

VQ-038206

Reference Standard

Trans-1,2-Cyclohexanediol chemical structure

Trans-1,2-Cyclohexanediol

CAS: 1460-57-7
Formula: C₆H₁₂O₂
MW: 116.16 g/mol

VQ-038203

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