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F2552

Sigma-Aldrich

Formestane

solid

Synonym(s):

4-Hydroxyandrost-4-ene-3,17-dione, CGP-32349

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About This Item

Empirical Formula (Hill Notation):
C19H26O3
CAS Number:
566-48-3
Molecular Weight:
302.41
MDL number:
MFCD00057814
UNSPSC Code:
12352204
PubChem Substance ID:
24894827
NACRES:
NA.25

biological source

synthetic (organic)

Assay

≥98% (HPLC)

form

solid

technique(s)

HPLC: suitable
gas chromatography (GC): suitable

solubility

chloroform: 50 mg/mL, clear to slightly hazy, colorless to faintly yellow

application(s)

forensics and toxicology
veterinary

storage temp.

2-8°C

SMILES string

C[C@]12CC[C@H]3[C@@H](CCC4=C(O)C(=O)CC[C@]34C)[C@@H]1CCC2=O

InChI

1S/C19H26O3/c1-18-10-8-15(20)17(22)14(18)4-3-11-12-5-6-16(21)19(12,2)9-7-13(11)18/h11-13,22H,3-10H2,1-2H3/t11-,12-,13-,18+,19-/m0/s1

InChI key

OSVMTWJCGUFAOD-KZQROQTASA-N

Gene Information

human ... CYP19A1(1588)

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Biochem/physiol Actions

Aromatase inhibitor used as an anti-cancer agent against estrogen-dependent tumors.

Pictograms

Health hazard
GHS08

Signal Word

Danger

Hazard Statements

H360

Hazard Classifications

Repr. 1B

Storage Class Code

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 3

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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Davide Mauri et al.
Journal of the National Cancer Institute, 98(18), 1285-1291 (2006-09-21)
Aromatase inhibitors and inactivators have been extensively tested in patients with advanced breast cancer, but it is unclear whether they offer any survival benefits compared with standard hormonal treatment with tamoxifen or progestagens. We performed a meta-analysis of randomized controlled
P E Lønning et al.
The Journal of steroid biochemistry and molecular biology, 77(1), 39-47 (2001-05-19)
Formestane (Lentaron(R), 4-hydroxyandrostenedione) is a steroidal aromatase inhibitor used for treatment of advanced breast cancer. Clinically, it is administered as a depot form once fortnightly by intramuscular (i.m.) injection. To investigate the pharmacokinetics, bioavailability and metabolism of the drug, seven
L R Wiseman et al.
Drugs & aging, 9(4), 292-306 (1996-10-01)
Formestane (4-hydroxyandrostenedione) is an aromatase inhibitor which significantly reduces plasma levels of estrogen and has shown antitumour activity in postmenopausal women with breast cancer. Objective response rates in heavily pretreated patients with advanced breast cancer generally range between 20 and
Jie Wang et al.
Frontiers in systems neuroscience, 14, 546531-546531 (2020-10-06)
In rodents, the period of increased vulnerability to the developmental effects of general anesthetics coincides with the period of age-specific organizing (masculinizing) effects of the major female sex hormone 17β-estradiol (E2) in the male brain and excitatory GABA type A
Xin Wang et al.
Cancer research, 66(21), 10281-10286 (2006-11-03)
Using Western blot as the major technique, we studied the effects of the three Food and Drug Administration (FDA)-approved aromatase inhibitors (AI) on aromatase protein stability in the aromatase-overexpressing breast cancer cell line MCF-7aro. We have found that exemestane treatment
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