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ESTETROL

CAS No.
15183-37-6
Chemical Name:
ESTETROL
Synonyms
E 4;(8R,9S,13S,14S,15R,16R,17R)-13-methyl-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthrene-3,15,16,17-tetrol;UBE4A;UBOX3;UFD2A;HDNB1;Donesta;ESTETROL;KIAA0126;KIAA0684
CBNumber:
CB1210710
Molecular Formula:
C18H24O4
Molecular Weight:
304.38
MDL Number:
MFCD00198996
MOL File:
15183-37-6.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-07-27 17:00:41
Product description Number Pack Size Price
Estetrol ≥98% (HPLC) SML1523 5mg $241
Estetrol ≥98% (HPLC) SML1523 25mg $958
Estetrol ≥95% 18232 500μg $35
Estetrol ≥95% 18232 1mg $63
UBE4A Purifiedbyimmunoaffinitychromatography. 529455 100ul $736
More product size

ESTETROL Properties

Melting point 233-236°C
Boiling point 491.9±45.0 °C(Predicted)
Density 1.343±0.06 g/cm3(Predicted)
storage temp. -20°C Freezer
solubility DMSO: soluble20mg/mL, clear
pka 10.22±0.70(Predicted)
form powder
color white to beige
optical activity [α]/D +125 to +135, c = 1 in ethanol
InChI InChI=1/C18H24O4/c1-18-7-6-12-11-5-3-10(19)8-9(11)2-4-13(12)14(18)15(20)16(21)17(18)22/h3,5,8,12-17,19-22H,2,4,6-7H2,1H3/t12-,13-,14-,15-,16-,17+,18+/s3
InChIKey AJIPIJNNOJSSQC-VRHMYLLRNA-N
SMILES [C@@]12([H])CCC3C=C(O)C=CC=3[C@@]1([H])CC[C@]1(C)[C@H]([C@H](O)[C@H](O)[C@@]21[H])O |&1:0,11,15,17,18,20,22,r|
FDA UNII ENB39R14VF

SAFETY

Risk and Safety Statements

Symbol(GHS)  Health Hazard (GHS08)
GHS08
Signal word  Danger
Hazard statements  H362-H351-H360
Precautionary statements  P201-P202-P281-P308+P313-P405-P501-P201-P260-P263-P264-P270-P308+P313
REACH Registrations Active

ESTETROL price More Price(44)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich SML1523 Estetrol ≥98% (HPLC) 15183-37-6 5mg $241 2026-04-30 Buy
Sigma-Aldrich SML1523 Estetrol ≥98% (HPLC) 15183-37-6 25mg $958 2026-04-30 Buy
Cayman Chemical 18232 Estetrol ≥95% 15183-37-6 500μg $35 2021-12-16 Buy
Cayman Chemical 18232 Estetrol ≥95% 15183-37-6 1mg $63 2021-12-16 Buy
Usbiological 529455 UBE4A Purifiedbyimmunoaffinitychromatography. 100ul $736 2026-06-03 Buy
Product number Packaging Price Buy
SML1523 5mg $241 Buy
SML1523 25mg $958 Buy
18232 500μg $35 Buy
18232 1mg $63 Buy
529455 100ul $736 Buy

ESTETROL Chemical Properties,Uses,Production

Chemical Properties

Off-White Solid

Uses

Estetrol is an estrogen steroid hormone exclusively produced by fetal liver from estradiol and estriol during pregnancy. It binds to estrogen receptors (ERs) with 4-fold higher affinity for ERα over ERβ and exhibits estrogenic effects in most tissues expressing ERs (bone, brain, vagina, and endometrium). In breast tumors, however, estetrol acts as an estrogen antagonist in the presence of estradiol, preventing tumor growth.

Uses

A metabolite of Estradiol. It is an estrogenic steroid synthesized exclusively by the fetal liver during human pregnancy and reaching the maternal circulation through the placenta.

Definition

ChEBI: Estetrol is a 3-hydroxy steroid that is 17beta-estradiol which has been substituted at the 15alpha and 16alpha positions by two additional hydroxy groups. It is a natural estrogen produced exclusively during pregnancy by the fetal liver. It has a role as an estrogen, an estrogen receptor agonist, a human metabolite, a human xenobiotic metabolite and an oral contraceptive. It is a 3-hydroxy steroid, a 17beta-hydroxy steroid, a 16alpha-hydroxy steroid, a 15alpha-hydroxy steroid and a steroid hormone. It derives from a hydride of an estrane.

in vivo

Estetrol (0.6 and 6 mg/kg/day, mixed in diet, 12 weeks) induces an atheroprotective effect in mice, with an ERα‐dependent manner[3].
Estetrol (0.03-3.0 mg/kg, p.o., twice daily for four consecutive days) inhibits ovulation in rats[5].

Animal Model:Four‐week‐old ovariectomized ERα+/+LDL‐r/ or ERα/LDL‐r/ mice were switched to atherogenic diet from the age of 6-18 weeks[1]
Dosage:0.6 or 6 mg/kg/day
Administration:mixed in atherogenic diet, 12 weeks
Result:Decreased total plasma cholesterol at 6 mg/kg/day in ERα+/+LDLr/ but not in ERα/LDLr/ mice.
Prevented lipid deposition in ovariectomized ERα+/+LDLr/ mice.

53-16-7
15183-37-6
Synthesis of ESTETROL from Estrone
Global( 94)Suppliers
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Henan Tianfu Chemical Co.,Ltd.
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BOC Sciences
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EZM SCIENCES LIMITED
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View Lastest Price from ESTETROL manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Estetrol pictures 2026-07-27 Estetrol
15183-37-6
$35.00-139.00 99.93% 10g TargetMol Chemicals Inc.
ESTETROL pictures 2026-07-15 ESTETROL
15183-37-6
1G 99% 2000G Wuhan Fortuna Chemical Co.,Ltd
  • Estetrol pictures
  • Estetrol
    15183-37-6
  • $35.00-139.00
  • 99.93%
  • TargetMol Chemicals Inc.
  • ESTETROL pictures
  • ESTETROL
    15183-37-6
  • 99%
  • Wuhan Fortuna Chemical Co.,Ltd

ESTETROL Spectrum

1,3,5(10)-ESTRATRIEN-3,15-ALPHA, 16-ALPHA, 17-BETA-TETROL 15-ALPHA-HYDROXYESTRIOL ESTETROL (15a,16a,17)-Estra-1,3,5(10)-triene-3,15,16,17-tetrol 15a-Hydroxyestriol 3,15a,16a,17-Tetrahydroxyestra-1,3,5(10)-triene Estra-1,3,5(10)-triene-3,15a,16a,17-tetrol 15α-Hydroxyestriol Estra-1,3,5(10)-triene-3,15α,16α,17β-tetrol (15α,16α,17β)-Estra-1,3,5(10)-triene-3,15,16,17-tetrol 3,15α,16α,17β-Tetrahydroxyestra-1,3,5(10)-triene KIAA0126 MGC133315 UBE4A Estra-1,3,5(10)-triene-3,15,16,17-tetrol, (15α,16α,17β)- 1, 3, 5(10)-ESTRATRIEN-3, 15α, 16α, 17β-TETROL (8R,9S,13S,14S,15R,16R,17R)-13-methyl-7,8,9,11,12,13,14,15,16,17-decahydro-6H-cyclopenta[a]phenanthrene-3,15,16,17-tetraol Donesta Estetrol, 10 mM in DMSO Estetrol (E4) UBOX3 UFD2A HDNB1 KIAA0684 Estra-1,3,5(10)-triene-3,15,16,17-tetrol,(15a,16a,17b)- (8R,9S,13S,14S,15R,16R,17R)-13-methyl-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthrene-3,15,16,17-tetrol E 4 15183-37-6 Intermediates & Fine Chemicals Pharmaceuticals Steroids