Citalopram Related Compounds & Impurities

Citalopram is a bicyclic phthalane-derivative SSRI antidepressant with a highly selective serotonin reuptake inhibition profile, used for major depressive disorder and anxiety conditions.

Simson Pharma Limited along with its subsidiary offices Simson Pharma Global Ltd. (UK) and Simson Pharma Global LLC (USA) is a trusted manufacturer and supplier of high-quality pharmaceutical reference standards, offering a comprehensive portfolio of Citalopram reference standards, pharmacopeial and non-pharmacopeial Citalopram impurities, related compounds, related substances, metabolites, stable isotope-labelled compounds, deuterium labelled compounds and nitrosamine (N-NO) reference standards.

These materials support pharmaceutical research and development, product development, ANDA and DMF submissions, quality control (QC), analytical method development and validation, stability studies, impurity identification, and genotoxic impurity assessment.

Our Citalopram-related reference standards are thoroughly characterized using advanced analytical techniques and are supplied with comprehensive Certificates of Analysis (COA) and supporting analytical data from our USFDA certified, ISO 17025 and ISO 17034 accredited Lab, to meet global regulatory expectations. EP and USP traceable reference standards can also be provided upon request, subject to availability. Simson is also a provider of EP and USP traceable standards. To ensure consistent quality and reliability, our reference standards are periodically re-tested according to established quality management procedures.

Pharmaceutical Reference Standards / Impurity Standards

Citalopram Hydrobromide
Citalopram EP Impurity A
Citalopram EP Impurity B
Citalopram EP Impurity B Oxalate
Citalopram EP Impurity C
Citalopram EP Impurity C Hydrochloride
Citalopram EP Impurity C Oxalate
Citalopram EP Impurity D
Citalopram Impurity D Hydrochloride
Citalopram EP Impurity D Hydrobromide
Citalopram Related Compound E
Citalopram Impurity -F(EP)
Citalopram EP Impurity F Oxalate
Citalopram EP Impurity F Hydrobromide
N,N-Didesmethyl Citalopram
Escitalopram EP Impurity E
Citalopram EP Impurity G
Citalopram Dimethylaminobutanone Dihydrochloride Salt
(R)-Citalopram Oxalate
Desfluoro Citalopram
Citalopram EP Impurity E Hydrobromide
Citalopram Intermediate (3-chloro-N,N,2-trimethylpropan-1-amine)
Citalopram Related Compound E Hydrochloride
Citalopram Related Compound E
Citalopram Related Compound F
Citalopram Carboxylic Acid Impurity
Citalopram Carboxylic Acid Hydrobromide
Escitalopram Impurity 7
Citalopram Dihydroxy Impurity
3-Chloro-1-(N,N-dimethyl)propylamine
Citalopram Alkene Impurity Oxalate
Citalopram Alkene Impurity
Citalopram Descyano Impurity Oxalate
Citalopram acid
(R)-Citadiol
Citalopram EP Impurity D Hydrobromide
Citalopram Diol-Desfluoro Impurity
Citalopram EP imp E
Citalopram chloromethyl quartenary ammonium salt hydrate
N,N,1-Trimethyl-3,3-diphenylallylamine Hydrochloride
Escitalopram EP Impurity I
Citalopram Related Compound M
(+/-)Desfluoro Citalopram Hydrobromide
(S)-Citalopram-D4 Oxalate
Citalopram Impurity
4-(3-(dimethylamino)propyl)-4-(4-fluorophenyl) isochroman-7-carbonitrile
Citalopram Alkene Dimer Chloride
1-Descyano 1-(4-Dimethylamino)oxobutyl Citadiol
4-[4-(Dimethylamino)-1-oxobutyl]-3-(hydroxymethyl)benzonitrile
(S)-Didemethyl Citalopram Hydrochloride
(S)-Didemethyl Citalopram
4-(4-Fluorobenzoyl)-3-hydroxymethylbenzonitrile
5-bromophthalide
Citalopram Related Compound C Oxalate
1-Bromo-2-Fluoro benzene
1,4-Dicyanobenzene
Citalopram NDI IV B Impurity
N-Nitroso Citalopram
Citalopram R-Isomer
Ciprofloxacin Hydrochloride Hydrate
Citalopram hydrochloride
5-Dimethylaminobutyryl Citalopram Oxalate
Citalopram-D6 Oxalate
Citalopram EP impurity D Hydrochloride (R Isomer)
Citalopram EP Impurity D (S Isomer) oxalate salt
Citalopram impurity 21
(S)-N-Desmethyl Citalopram Hydrochloride
Citalopram Impurity 22
Citalopram Impurity 23
Citalopram Impurity 24
Escitalopram Impurity 13
Citalopram Impurity 26
2-(3-Chloropropyl)isoindole-1,3-dione
(R)-Citadiol oxalate
Citalopram Impurity 19
Citalopram hydroxy dimer impurity
Citalopram EP Impurity E Oxalate
Citalopram EP Impurity G Dioxalate
(S)-Citadiol
Citalopram Impurity 2
Citalopram Impurity 1

Metabolites

N-Nitroso Desmethyl Citalopram

Isotope Labelled Compounds

Citalopram-d4 Hydrobromide
(S)-Citalopram-D6 Oxalate
Citalopram-d4 Hydrobromide
Citalopram-D6
(S)-N-Desmethyl Citalopram Hydrochloride D3
N-Nitroso N-Desmethyl-Citalopram D3
N-Nitroso-Desmethyl Escitalopram-d3