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Substance Name: Levocetirizine [USAN:INN:BAN]
RN: 130018-77-8
UNII: 6U5EA9RT2O
InChIKey: ZKLPARSLTMPFCP-OAQYLSRUSA-N

Note

  • Has anti-inflammatory activity; the active isomer of Cetirizine opposite to dextrocetirizine; sometimes called a third generation H1 antagonist.

Molecular Formula

  • C21-H25-Cl-N2-O3

Molecular Weight

  • 388.8925
 

Classification Codes

  • Antihistamine
  • Histamine Agents
  • Histamine Antagonists
  • Histamine H1 Antagonists
  • Histamine H1 Antagonists, Non-Sedating
  • Neurotransmitter Agents
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Names and Synonyms

Name of Substance

  • Levocetirizine
  • Levocetirizine [USAN:INN:BAN]

Synonyms

  • (-)-Cetirizine
  • (2-(4-((R-p-Chloro-alpha-phenylbenzyl)-1-piperazinyl)ethoxy)acetic acid
  • Levocetirizine
  • UNII-6U5EA9RT2O
  • Xarlin
  • Xusal

Systematic Name

  • Acetic acid, (2-(4-((R)-(4-chlorophenyl)phenylmethyl)-1-piperazinyl)ethoxy)-

Registry Numbers

CAS Registry Number

  • 130018-77-8

FDA UNII

  • 6U5EA9RT2O

System Generated Number

  • 0130018778

Structure Descriptors

InChI

InChI=1S/C21H25ClN2O3/c22-19-8-6-18(7-9-19)21(17-4-2-1-3-5-17)24-12-10-23(11-13-24)14-15-27-16-20(25)26/h1-9,21H,10-16H2,(H,25,26)/t21-/m1/s1

InChIKey

ZKLPARSLTMPFCP-OAQYLSRUSA-N

Smiles

OC(=O)COCCN1CCN(CC1)[C@H](c2ccccc2)c3ccc(Cl)cc3