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Basic Information
CAS No.: 25256-97-7
Name: (6a,11b,16a)-6,9-Difluoro-11-hydroxy-16-methylandrosta-1,4-diene-3,17-dione
Molecular Structure:
Molecular Structure of 25256-97-7 ((6a,11b,16a)-6,9-Difluoro-11-hydroxy-16-methylandrosta-1,4-diene-3,17-dione)
Formula: C20H24 F2 O3
Molecular Weight: 350.40
Synonyms: Androsta-1,4-diene-3,17-dione,6a,9-difluoro-11b-hydroxy-16a-methyl- (8CI)
Density: 1.27
Melting Point: 280-288 °C (decomp)
Boiling Point: 480.687°C at 760 mmHg
Flash Point: 244.511°C
PSA: 54.37000
LogP: 3.12030
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Chemistry

Molecular structure of (6a,11b,16a)-6,9-Difluoro-11-hydroxy-16-methylandrosta-1,4-diene-3,17-dione (CAS NO.25256-97-7) is:

Product Name: (6a,11b,16a)-6,9-Difluoro-11-hydroxy-16-methylandrosta-1,4-diene-3,17-dione
CAS Registry Number: 25256-97-7
Systematic Name: (6S,8S,9R,10S,11S,13S,14S,16R)-6,9-difluoro-11-hydroxy-10,13,16-trimethyl-6,7,8,11,12,14,15,16-octahydrocyclopenta[a]phenanthrene-3,17-dione 
Molecular Formula: C20H24F2O3
Molecular Weight: 350.40
Index of Refraction: 1.554 
Molar Refractivity: 87.993 cm3 
Molar Volume: 274.408 cm3 
Surface Tension: 44.566 dyne/cm 
Density: 1.277 g/cm3 
Flash Point: 244.511 °C 
Enthalpy of Vaporization: 85.886 kJ/mol 
Boiling Point: 480.687 °C at 760 mmHg 
Vapour Pressure: 0 mmHg at 25 °C 
Product Categories: Fluticasone
SMILES: CC1CC2C3CC(C4=CC(=O)C=CC4(C3(C(CC2(C1=O)C)O)F)C)F 
InChI: InChI=1/C20H24F2O3/c1-10-6-12-13-8-15(21)14-7-11(23)4-5-19(14,3)20(13,22)16(24)9-18(12,2)17(10)25/h4-5,7,10,12-13,15-16,24H,6,8-9H2,1-3H3/t10-,12+,13+,15+,16+,18+,19+,20+/m1/s1
InChIKey: UMKWAIKMRBAVPM-JRXMGOECBH 
Std. InChI: InChI=1S/C20H24F2O3/c1-10-6-12-13-8-15(21)14-7-11(23)4-5-19(14,3)20(13,22)16(24)9-18(12,2)17(10)25/h4-5,7,10,12-13,15-16,24H,6,8-9H2,1-3H3/t10-,12+,13+,15+,16+,18+,19+,20+/m1/s1 
Std. InChIKey: UMKWAIKMRBAVPM-JRXMGOECSA-N

Specification

 (6a,11b,16a)-6,9-Difluoro-11-hydroxy-16-methylandrosta-1,4-diene-3,17-dione , its cas register number is 25256-97-7. It also can be called Androsta-1,4-diene-3,17-dione,6,9-difluoro-11-hydroxy-16-methyl-, (6a,11b,16a)- (9CI) .