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Substance Name: Luteinizing Hormone
RN: 9002-67-9


  • A major gonadotropin secreted by the adenohypophysis (PITUITARY GLAND, ANTERIOR). Luteinizing hormone regulates steroid production by the interstitial cells of the TESTIS and the OVARY. The preovulatory LUTEINIZING HORMONE surge in females induces OVULATION, and subsequent LUTEINIZATION of the follicle. LUTEINIZING HORMONE consists of two noncovalently linked subunits, alpha and beta. Within a species, the alpha subunit is common in the three pituitary glycoprotein hormones (TSH, LH and FSH), but the beta subunit is unique and confers its biological specificity.

Classification Codes

  • Hormone
  • Reproductive Effect
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Links to Resources

Names and Synonyms

Name of Substance

  • Luteinizing hormone

MeSH Heading

  • Luteinizing hormone


  • EINECS 232-661-8
  • Gonadotropin, luteinizing hormone
  • Gonadotropin, luteinizing hormone, ovine
  • ICSH
  • Interstitial cell stimulating hormone
  • LH
  • Luteinising hormone
  • Luteinizing gonadotropic hormone
  • Luteotropic hormone
  • Luteotropin
  • Luteoziman
  • Lutropin
  • Niaddk o-LH-24
  • NIH-LH-B 9
  • Pituitary luteinizing hormone
  • PLH

Systematic Name

  • Luteinizing hormone

Registry Numbers

CAS Registry Number

  • 9002-67-9


  • 8XA4VN1LH4

Other Registry Numbers

  • 12767-82-7
  • 9066-56-2
  • 9066-57-3

System Generated Number

  • 0009002679