ChemAbout
© 2026 ChemAbout
Insights|Privacy Policy|Terms of Service|[email protected]
Home/Compounds/API/Estriol
C18H24O3
288.4 g/mol
APIDanger

Estriol

CAS50-27-1EC200-022-2
Category
API
Compound Class
Steroid
Primary Use
Pharmaceutical Raw Material

Estriol is a steroid compound that functions as an estrogen, a human metabolite, and a mouse metabolite. It is structurally characterized by three hydroxyl groups on an estrane backbone, including a 16alpha-hydroxy and 17beta-hydroxy configuration.

medication ingredientused to assess fetal health during pregnancy

Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.

Sourcing or supplying this compound?

List your inventory or post a purchase request

CAS 50-27-1

List This Product
Sign in to publish supply information
Request This Product
Submit a request without registering

Related Compounds

ReferenceSame Category

17β-estradiol

CAS50-28-2

pharmaceutical raw material

ReferenceSame Category

Phenylbutazone

CAS50-33-9

pharmaceutical raw material

ReferenceSame Category

Propantheline bromide

CAS50-34-0

pharmaceutical raw material

ReferenceSame Category

Thalidomide

CAS50-35-1

pharmaceutical raw material

Referencestereoisomer of

(16beta,17beta)-Estra-1,3,5(10)-triene-2,4-D2-3,16,17-triol

CAS366495-94-5

research compound

Safety Reference

Harmful
Harmful
Health Hazard
Health Hazard
Environmental Hazard
Environmental Hazard
Danger
H350May cause cancer
H351Suspected of causing cancer
H360May damage fertility or the unborn child
H362May cause harm to breast-fed children
H372Causes damage to organs through prolonged or repeated exposure
H410Very toxic to aquatic life with long lasting effects
Identifiers
IUPAC Name

(8R,9S,13S,14S,16R,17R)-13-methyl-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthrene-3,16,17-triol

InChIKey

PROQIPRRNZUXQM-ZXXIGWHRSA-N

SMILES

C[C@]12CC[C@H]3[C@H]([C@@H]1C[C@H]([C@@H]2O)O)CCC4=C3C=CC(=C4)O

Synonyms (102)
  • Estriol (JP18/USP)
  • Estriol for system suitability, European Pharmacopoeia (EP)
  • Estriol, European Pharmacopoeia (EP)
  • Estriol, United States Pharmacopeia (USP)
  • Estriol, meets USP testing specifications
  • 16-Hydroxyestradiol
  • 16.alpha.-Estriol
  • 16a,17b-Estriol
  • 16a-Estriol
  • 16a-Hydroxyestradiol
  • 16alpha,17beta-Estriol
  • 16alpha,17beta-Oestriol
  • 16alpha-Hydroxyestradiol
  • 16alpha-Hydroxyoestradiol
  • 16beta Hydroxy Estradiol
  • 3,16-alpha,17-beta-Oestriol
  • 3,16a,17b-Estriol
  • 3,16alpha,17beta-Estriol
  • 3,17.beta.-Estriol
  • Aacifemine
  • Acifemine
  • Advanced Formula Estro-Life
  • Colpogyn
  • Colpovister
  • Destriol
  • Deuslon-A
  • ESTRIOL [MART.]
  • Estratriol
  • Estriel
  • Estriel (TN)
  • Estriol (Standard)
  • Estriol 1.0 mg/ml in Methanol
  • Estriol 5.0 Cream
  • Estriol CRS
  • Estriol, VETRANAL(TM)
  • Estriol, unconjugated
  • Estriolo
  • Estriolo [Italian]
  • Estro-Life
  • Gynaesan
  • Gynasan
  • Gynest
  • Hemostyptanon
  • Holin V
  • Hormomed
  • Hormonin
  • Incurin
  • Klimax E
  • Klimoral
  • LMNOOP Feminine Cream
  • OeKolp
  • Oestratriol
  • Oestriol
  • Oestriol (Standard)
  • Oestriolum
  • Orestin
  • Orgastyptin
  • Ortho-Gynest
  • Overstin
  • Ovesterin
  • Ovestin
  • Ovestinon
  • Ovestrion
  • Ovo-vinces
  • Theelol
  • Thulol
  • Tridestrin
  • Trihydroxyestrin
  • Trihydroxyoestrin
  • Trimesta
  • Triovex
  • estriol