26538-44-3

26538-44-3 structure

Name: Zeranol
Chemical Name: (7R,11S)-7,15,17-trihydroxy-11-methyl-12-oxabicyclo[12.4.0]octadeca-1(14),15,17-trien-13-one
CAS Number: 26538-44-3
Molecular Formula: C₁₈H₂₆O₅
Molecular Weight: 322.396
Catalog: analytical chemistry Standard Food and cosmetics standards
Create Date: 2018-07-22 23:05:38
Modify Date: 2025-08-23 18:03:30
Zeranol is a non-steroidal estrogen agonist. It is a mycotoxin, derived from fungi in the Fusarium family, and may be found as a contaminant in fungus-infected crops. It is 3-4x more potent as an estrogen agonist than the related compound zearalenone. Zeranol increases cancer cell proliferation in already existing breast cancer. There are mixed results to whether zeranol has anticancer or carcinogenic properties in non cancer containing breast cells depending on dose. Overall evidence points to zeranol being a risk factor and promoter for cancer. However, dietary exposure from the use of zeranol-containing implants in cattle is insignificant.

Name	(7R,11S)-7,15,17-trihydroxy-11-methyl-12-oxabicyclo[12.4.0]octadeca-1(14),15,17-trien-13-one
Synonyms	EINECS 247-769-0 6-(6,10-Dihydroxyundecyl)-β-resorcylic Acid μ-Lactone (3S,7R)-3,4,5,6,7,8,9 a-Zearalanol Zeranol Ralgro (3S,7R)-3,4,5,6,7,8,9,10,11,12-Decahydro-7,14,16-trihydroxy-3-methyl-1H-2-benzoxacyclotetradecin-1-one (3S,7R)-7,14,16-Trihydroxy-3-methyl-3,4,5,6,7,8,9,10,11,12-decahydro-1H-2-benzoxacyclotetradecin-1-one α-zearalanol MFCD00083519 Ralone Zearalanol Ralabol Zearanol