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APIs, pharmacopoeial impurities, metabolites, nitrosamines and labelled standards.

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4,5-Dihydrothiazole-2-thiol

ImpurityLevels of characterisation

Cat. No.: P-T026-008
CAS: 96-53-7
Formula: C₃H₅NS₂
Family: Tebipenem
Synonyms: Tebipenem Pivoxil Impurity 9, 2-Thiazolidinethione

trans-10,11-Dihydroxy-10,11-dihydrocarbamazepine

ImpurityLevels of characterisation

Cat. No.: P-O053-025
CAS: 58955-93-4
Formula: C₁₅H₁₄N₂O₃
Family: Oxcarbazepine
Synonyms: Rac trans-10,11-Dihydro-10,11-dihydroxy Carbamazepine, Dihydrocarbamazepine-10,11-trans-diol

3,4-Dimethoxyphenylalanine

ImpurityLevels of characterisation

Cat. No.: P-L048-012
CAS: 55-59-4
Formula: C₁₁H₁₅NO₄
Family: Levodopa
Synonyms: 2-amino-3-(3,4-dimethoxyphenyl)propanoic acid, Tyrosine, 3-methoxy-O-methyl-

4,4-Dimethyl-3H-chromen-2-one

ImpurityLevels of characterisation

Cat. No.: P-G043-012
CAS: 29598-22-9
Formula: C₁₁H₁₂O₂
Family: Gliquidone
Synonyms: Coumarin, 3,4-dihydro-4,4-dimethyl-

Diphenylmethanethiol Dimer

ImpurityLevels of characterisation

Cat. No.: P-M155-023
CAS: 1726-02-9
Formula: C₂₆H₂₂S₂
Family: Modafinil
Synonyms: Dibenzhydryl Disulfide, Modafinil Related Compound E

cis-Doxepin

ImpurityLevels of characterisation

Cat. No.: P-D181-020
CAS: 3607-18-9
Formula: C₁₉H₂₁NO
Family: Doxepin
Synonyms: Cidoxepin, Cidoxepina

Doxepin N-Oxide (Mixture of Z and E Isomers)

ImpurityLevels of characterisation

Cat. No.: P-D181-027
CAS: 22684-91-9
Formula: C₁₉H₂₁NO₂
Family: Doxepin
Synonyms: Doxepin Impurity 8, N-Desmethyl Doxepin-13C-d3 HCl

Doxepin N-Oxide Hydrochloride

ImpurityLevels of characterisation

Cat. No.: P-D181-028
CAS: 2734342-87-9
Formula: C₁₉H₂₁NO₂·HCl
Family: Doxepin

Dydrogesterone bis(Ethylene Acetal)

ImpurityLevels of characterisation

Cat. No.: P-D200-015
CAS: 5488-51-7
Formula: C₂₅H₃₆O₄
Family: Dydrogesterone
Synonyms: Dydrogesterone ethylene acetal

Dydrogesterone Impurity 1

ImpurityLevels of characterisation

Cat. No.: P-D200-012
CAS: 151478-10-3
Formula: C₂₅H₃₆O₄
Family: Dydrogesterone
Synonyms: 6E-9,10-seco-3,20-Bis-(ethylenedioxy)-pregna-5(10)-6,8-triene

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