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Substance Name: Letrozole [USAN:USP:INN:BAN]
RN: 112809-51-5
UNII: 7LKK855W8I
InChIKey: HPJKCIUCZWXJDR-UHFFFAOYSA-N

Classification Codes

  • Antineoplastic
  • Antineoplastic Agents
  • Aromatase Inhibitors
  • Enzyme Inhibitors
  • Estrogen Antagonists
  • Hormone Antagonists
  • Hormones, Hormone Substitutes, and Hormone Antagonists
  • Steroid Synthesis Inhibitors

Molecular Formula

  • C17-H11-N5

Molecular Weight

  • 285.3089
 

Names and Synonyms

Name of Substance

  • Letrozole
  • Letrozole [USAN:USP:INN:BAN]

Synonyms

  • 4,4'-(1H-1,2,4-Triazol-1-ylmethylene)dibenzonitrile
  • CCRIS 8822
  • CGS 20267
  • Femara
  • HSDB 7461
  • Letoval
  • Letrozole
  • UNII-7LKK855W8I

Systematic Name

  • Benzonitrile, 4,4'-(1H-1,2,4-triazol-1-ylmethylene)bis-

Registry Numbers

CAS Registry Number

  • 112809-51-5

FDA UNII

  • 7LKK855W8I

System Generated Number

  • 0112809515

Structure Descriptors

InChI

1S/C17H11N5/c18-9-13-1-5-15(6-2-13)17(22-12-20-11-21-22)16-7-3-14(10-19)4-8-16/h1-8,11-12,17H

InChIKey

HPJKCIUCZWXJDR-UHFFFAOYSA-N

Smiles

c1cc(ccc1C#N)C(c2ccc(cc2)C#N)n3cncn3