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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.

28,554products

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

Adapalene EP Impurity C chemical structure

Adapalene EP Impurity C

CAS: 43109-77-9
Formula: C₁₇H₂₂O
MW: 242.36 g/mol

VQ-021428

Reference Standard

Adapalene EP Impurity D chemical structure

Adapalene EP Impurity D

CAS: 932033-57-3
Formula: C₃₄H₄₂O₂
MW: 482.7 g/mol

VQ-021429

Reference Standard

Adapalene Methyl Ester chemical structure

Adapalene Methyl Ester

CAS: 106685-41-0
Formula: C₂₉H₃₀O₃
MW: 426.5 g/mol

VQ-021430

Reference Standard

Adapalene-d3 chemical structure

CAS: 1276433-89-6
Formula: C₂₈H₂₈O₃
MW: 415.5 g/mol

VQ-029031

Reference Standard

Adaplene-D6 Methyl Ester chemical structure

Adaplene-D6 Methyl Ester

CAS: 1330264-23-7
Formula: C₂₉H₃₀O₃
MW: 432.6 g/mol

VQ-047337

Reference Standard

Adefovir chemical structure

CAS: 106941-25-7
Formula: C₈H₁₂N₅O₄P
MW: 273.19 g/mol

VQ-043482

Reference Standard

Adefovir Dipivoxil chemical structure

Adefovir Dipivoxil

CAS: 142340-99-6
Formula: C₂₀H₃₂N₅O₈P
MW: 501.5 g/mol

VQ-020743

Reference Standard

Adefovir Dipivoxil Dimer chemical structure

Adefovir Dipivoxil Dimer

CAS: 323201-05-4
Formula: C₄₁H₆₄N₁₀O₁₆P₂
MW: 1015 g/mol

VQ-043483

Reference Standard

Adefovir Dipivoxil N6-Hydroxy methyl impurity chemical structure

Adefovir Dipivoxil N6-Hydroxy methyl impurity

CAS: 323201-04-3
Formula: C₂₁H₃₄N₅O₉P
MW: 531.5 g/mol

VQ-028880

Reference Standard

Adefovir Monopivoxil chemical structure

Adefovir Monopivoxil

CAS: 142341-05-7
Formula: C₁₄H₂₂N₅O₆P
MW: 387.33 g/mol

VQ-024141

Reference Standard

Adefovir Pivalamido Impurity chemical structure

Adefovir Pivalamido Impurity

CAS: 1215101-40-8
Formula: C₂₅H₄₀N₅O₉P
MW: 585.6 g/mol

VQ-045391

Reference Standard

Adenine Hydrochloride chemical structure

Adenine Hydrochloride

CAS: 2922-28-3
Formula: C₅H₆ClN₅
MW: 171.59 g/mol

VQ-029032

Reference Standard

Adenosine 5'-Triphosphate chemical structure

Adenosine 5'-Triphosphate

CAS: 56-65-5
Formula: C₁₀H₁₆N₅O₁₃P₃
MW: 507.18 g/mol

VQ-035613

Reference Standard

Adenosine EP Impurity A Sodium Salt chemical structure

Adenosine EP Impurity A Sodium Salt

CAS: 40428-86-2
Formula: C₅H₄N₅Na
MW: 157.11 g/mol

VQ-035513

Reference Standard

Adenosine Impurity 1

Adenosine Impurity 1

CAS: 10527-91-0
Formula: C₉H₉N₅O₂
MW: 219.2 g/mol

VQ-029035

Reference Standard

Adenosine Impurity 13 chemical structure

Adenosine Impurity 13

CAS: 256224-01-8
Formula: C₅₀H₅₈N₇O₉P
MW: 932 g/mol

VQ-044937

Reference Standard

Adenosine Impurity 15 chemical structure

Adenosine Impurity 15

CAS: 1558023-78-1
Formula: C₄₃H₅₄N₇O₈P
MW: 827.9 g/mol

VQ-044939

Reference Standard

Adenosine Impurity 17 chemical structure

Adenosine Impurity 17

CAS: 3025999-68-9
Formula: C₅₀H₅₈N₇O₉P
MW: 932 g/mol

VQ-044938

Reference Standard

Adenosine Impurity 8 chemical structure

Adenosine Impurity 8

CAS: 3036300-28-1
Formula: C₅₁H₆₀N₇O₈P
MW: 930 g/mol

VQ-044936

Reference Standard

Aderbasib chemical structure

CAS: 791828-58-5
Formula: C₂₁H₂₈N₄O₅
MW: 416.5 g/mol

VQ-034771

Reference Standard

Adiphenine Hydrochloride chemical structure

Adiphenine Hydrochloride

CAS: 50-42-0
Formula: C₂₀H₂₆ClNO₂
MW: 347.9 g/mol

VQ-021434

Reference Standard

Adipic Acid Impurity 1 chemical structure

Adipic Acid Impurity 1

CAS: 1700-12-5
Formula: C₁₀H₁₈O₆
MW: 234.25 g/mol

VQ-049455

Reference Standard

Adipoyl Disalicylate chemical structure

Adipoyl Disalicylate

CAS: 69638-07-9
Formula: C₂₀H₁₈O₈
MW: 386.4 g/mol

VQ-047312

Reference Standard

Adipyl-7-ADCA chemical structure

CAS: 80154-48-9
Formula: C₁₄H₁₈N₂O₆S
MW: 342.37 g/mol

VQ-022125

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