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566-48-3

566-48-3 structural image
Product Name: Formestane
Formula: C19H26O3
Synonyms: 4-Hydroxyandrost-4-ene-3,17-dione;Aromatase;CYPXIX;Estrogen synthetase;
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CHEMICAL AND PHYSICAL PROPERTIES

Melting Point 199 - 202
Solubility Insoluble
LogP 2.66
Dissociation Constants 9.31

SAFETY INFORMATION

Signal word Danger
Pictogram(s)

Health Hazard
GHS08
GHS Hazard Statements H360:Reproductive toxicity
Precautionary Statement Codes P201:Obtain special instructions before use.
P308+P313:IF exposed or concerned: Get medical advice/attention.

COMPUTED DESCRIPTORS

Molecular Weight 302.4 g/mol
XLogP3 2.6
Hydrogen Bond Donor Count 1
Hydrogen Bond Acceptor Count 3
Rotatable Bond Count 0
Exact Mass 302.18819469 g/mol
Monoisotopic Mass 302.18819469 g/mol
Topological Polar Surface Area 54.4 Ų
Heavy Atom Count 22
Formal Charge 0
Complexity 590
Isotope Atom Count 0
Defined Atom Stereocenter Count 5
Undefined Atom Stereocenter Count 0
Defined Bond Stereocenter Count 0
Undefined Bond Stereocenter Count 0
Covalently-Bonded Unit Count 1
Compound Is Canonicalized Yes

PRODUCT INTRODUCTION

description

Formestane is a 17-oxo steroid that is androst-4-ene-3,17-dione in which the hydrogen at position 4 is replaced by a hydroxy group. Formestane was the first selective, type I steroidal aromatase inhibitor, suppressing oestrogen production from anabolic steroids or prohormones. It was formerly used in the treatment of oestrogen-receptor positive breast cancer in post-meopausal women. As it has poor oral bioavailability, it had to be administered by (fortnightly) intramuscular injection. It fell out of use with the subsequent development of cheaper, orally active aromatase inhibitors. Formestane is listed by the World Anti-Doping Agency as a substance prohibited from use by athletes. It has a role as an EC 1.14.14.14 (aromatase) inhibitor and an antineoplastic agent. It is a 3-oxo-Delta(4) steroid, a 17-oxo steroid, a hydroxy steroid and an enol. It derives from a hydride of an androstane.

RELATED SUPPLIERS

Indogulf Group

Maharashtra
product:Formestane
All suppliers(1)