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Pharmacopeial Impurities (EP / USP / BP)

Citalopram EP Impurity B

Reference StandardAvailable on request

Citalopram EP Impurity B (CAS 411221-53-9) supplier Zemixal. Lab and bulk packs, batch COA, fast global delivery. Catalogue no. ZX-020225.

Pack sizes
Citalopram EP Impurity B chemical structure
CAS number411221-53-9
FormulaC20H21FN2O2
Molar mass340.4 g/mol
Physical formSolid
HS code38229090
InChIKeyLJPQJFHBFOOIHE-UHFFFAOYSA-N
IUPAC name1-[3-(dimethylamino)propyl]-1-(4-fluorophenyl)-3-hydroxy-3H-2-benzofuran-5-carbonitrile

About Citalopram EP Impurity B

Citalopram EP Impurity B belongs to the Citalopram reference-standard family in the Zemixal catalogue. Identity at a glance (Reference Standard): CAS 411221-53-9, formula C20H21FN2O2 and molar mass 340.4 g/mol. It is handled as a solid.

Common uses in the lab and plant

  • Pharmacopeial method verification
  • Impurity profiling
  • QC release testing
  • ANDA / DMF filings

Storage and safety notes

Hazard communication follows GHS (Warning: H302). Our SDS lists exposure controls and first-aid measures.

Available as 10 mg, 25 mg, 50 mg and 100 mg. Larger or split packs can be arranged. You receive a certificate of analysis with characterisation data with each order. Request pricing online and we confirm availability, documentation and freight to your country.

Reference standards for Citalopram

See every impurity, metabolite and related compound we list for this API.

Citalopram standards

Typical uses

  • Pharmacopeial method verification
  • Impurity profiling
  • QC release testing
  • ANDA / DMF filings

Applications

Pharmaceutical Manufacturing and QCResearch Labs and Universities

Grade guides

Ph. Eur. Grade (European Pharmacopoeia)

Specifications and identifiers

Specifications of Citalopram EP Impurity B
Product nameCitalopram EP Impurity B
Catalogue numberZX-020225
CAS number411221-53-9
IUPAC name1-[3-(dimethylamino)propyl]-1-(4-fluorophenyl)-3-hydroxy-3H-2-benzofuran-5-carbonitrile
Molecular formulaC20H21FN2O2
Molar mass340.4 g/mol
Exact mass340.1587
GradeReference Standard
Physical formSolid
XLogP32.7
H-bond donors / acceptors1 / 5
Topological polar surface area56.5 Ų
HS code38229090
InChIKeyLJPQJFHBFOOIHE-UHFFFAOYSA-N
SMILESCN(C)CCCC1(C2=C(C=C(C=C2)C#N)C(O1)O)C3=CC=C(C=C3)F
PubChem CID11267809
SynonymsEscitalopram EP Impurity B, Citalopram EP Impurity B / citalopram USP Related Compound B, Citalopram Hydrobromide - Impurity B (Freebase), Escitalopram Oxalate - Impurity B, 3-Hydroxy Citalopram

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

GHS07 Irritant or harmful
Irritant or harmful

Signal word Warning

  • H302Harmful if swallowed

Precautionary statements P264, P270, P301 + P317, P330, P501

Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of Citalopram EP Impurity B
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 mgQuoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about Citalopram EP Impurity B

Which CAS number identifies Citalopram EP Impurity B?
Citalopram EP Impurity B is registered under CAS 411221-53-9. You may also see it listed as Escitalopram EP Impurity B, Citalopram EP Impurity B / citalopram USP Related Compound B, Citalopram Hydrobromide - Impurity B (Freebase). Our catalogue number for this item is ZX-020225.
What are the formula and molar mass of Citalopram EP Impurity B?
For Citalopram EP Impurity B, its formula is C20H21FN2O2 and its molar mass is 340.4 g/mol. The systematic (IUPAC) name is 1-[3-(dimethylamino)propyl]-1-(4-fluorophenyl)-3-hydroxy-3H-2-benzofuran-5-carbonitrile. InChIKey LJPQJFHBFOOIHE-UHFFFAOYSA-N lets you match it in any structure database.
How is Citalopram EP Impurity B used in pharmaceutical QC?
Citalopram EP Impurity B is a characterised reference material linked to Citalopram. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.
What grade and pack sizes are available for Citalopram EP Impurity B?
This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with Citalopram EP Impurity B?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship Citalopram EP Impurity B to my country?
Yes. Because Citalopram EP Impurity B is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

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