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Substance Name: Steroidal estrogens
ID: C127000000


  • NTPA DEFINITION : Conjugated estrogens are an amorphous mixture containing naturally occurring forms of mixed estrogens, principally, sodium estrone sulfate (CAS# 438-67-5), sodium equilin sulfate (CAS# 16680-67-5), and piperazine estrone sulfate (CAS# 7280-37-7), and a synthetic conjugated estrogen.

Molecular Formula

  • Unspecified

Classification Code

  • Known to be a Carcinogen
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Links to Resources

NLM Resources (File Locators)

Regulatory Agencies (Superlist Locators)

Other Resources (Internet Locators)

Names and Synonyms


  • Steroidal estrogens

Superlist Names

  • Conjugated estrogens
  • Conjugated oestrogens
  • Conjugated oestrogens [Steroidal oestrogens]
  • Estrogens, steroidal

Registry Numbers

ID Number

  • C127000000

System Generated Number

  • C127000000