ChemicalBook >> CAS DataBase List >>(6a,11b,16a,17a)-6,9-Difluoro-11,17-dihydroxy-16-methyl-3-oxoandrosta-1,4-diene-17-carboxylic acid

(6a,11b,16a,17a)-6,9-Difluoro-11,17-dihydroxy-16-methyl-3-oxoandrosta-1,4-diene-17-carboxylic acid

CAS No.
28416-82-2
Chemical Name:
(6a,11b,16a,17a)-6,9-Difluoro-11,17-dihydroxy-16-methyl-3-oxoandrosta-1,4-diene-17-carboxylic acid
Synonyms
FluMethasone acid;Flumetasone acid;Fluticasone Acid;(6alpha,11beta,16alpha,17alpha)-6,9-difluoro-11,17-dihydroxy-16-methyl-3-oxoandrosta-1,4-diene-17-carboxylic acid;(6S,8S,9R,10S,11S,13S,14S,16R,17R)-6,9-difluoro-11,17-dihydroxy-10,13,16-trimethyl-3-oxo-6,7,8,11,12,14,15,16-octahydrocyclopenta[a]phenanthrene-17-carboxylic acid;Axon 1170;impurity J;BNKY011-FP01;BNKY012-FF01;flumethason acid
CBNumber:
CB2854948
Molecular Formula:
C21H26F2O5
Molecular Weight:
396.42
MDL Number:
MFCD09832931
MOL File:
28416-82-2.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-05-28 00:51:06

(6a,11b,16a,17a)-6,9-Difluoro-11,17-dihydroxy-16-methyl-3-oxoandrosta-1,4-diene-17-carboxylic acid Properties

Melting point 303-305°C
Boiling point 568.4±50.0 °C(Predicted)
Density 1.38±0.1 g/cm3(Predicted)
storage temp. Refrigerator
solubility Acetone (Slightly, Sonicated), DMSO (Slightly), Methanol (Slightly)
form Solid
pka 3.49±0.70(Predicted)
color White to Off-White
Major Application pharmaceutical (small molecule)
InChIKey QSVBUQTYFQFEHC-TXKOFOEMNA-N
SMILES [C@]12(C)C=CC(=O)C=C1[C@@H](F)C[C@@]1([H])[C@]3([H])C[C@@H](C)[C@](O)(C(O)=O)[C@@]3(C)C[C@H](O)[C@]21F |&1:0,8,11,13,16,18,23,26,28,r|
FDA UNII EUS9FD6209
UNSPSC Code 41116107
NACRES NA.24

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H302-H315-H319-H332-H335
Precautionary statements  P261-P280-P305+P351+P338
WGK Germany  WGK 3
HS Code  2937220000
Storage Class 11 - Combustible Solids

(6a,11b,16a,17a)-6,9-Difluoro-11,17-dihydroxy-16-methyl-3-oxoandrosta-1,4-diene-17-carboxylic acid price More Price(28)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Cayman Chemical 27855 Fluticasone 17β-Carboxylic Acid ≥98% 28416-82-2 50mg $75 2026-04-30 Buy
Cayman Chemical 27855 Fluticasone 17β-Carboxylic Acid ≥98% 28416-82-2 100mg $143 2026-04-30 Buy
Cayman Chemical 27855 Fluticasone 17β-Carboxylic Acid ≥98% 28416-82-2 250mg $333 2026-04-30 Buy
Cayman Chemical 27855 Fluticasone 17β-Carboxylic Acid ≥98% 28416-82-2 500mg $589 2026-04-30 Buy
Biosynth FF23512 Fluticasone 17b-carboxylic acid 28416-82-2 5g $217.7 2026-06-04 Buy
Product number Packaging Price Buy
27855 50mg $75 Buy
27855 100mg $143 Buy
27855 250mg $333 Buy
27855 500mg $589 Buy
FF23512 5g $217.7 Buy

(6a,11b,16a,17a)-6,9-Difluoro-11,17-dihydroxy-16-methyl-3-oxoandrosta-1,4-diene-17-carboxylic acid Chemical Properties, Uses, Production

Description

Fluticasone 17β-carboxylic acid is an intermediate in the synthesis of the glucocorticosteroid fluticasone propionate .

Chemical Properties

White Solid

Uses

The major metabolite of Fluticasone. Anti-inflammatory agent.

Uses

Fluticasone intermediate. Anti-inflammatory agent

General Description

Fluticasone 17β-carboxylic acid ((6a,11b,16a,17a)-6,9-Difluoro-11,17-dihydroxy-16-methyl-3-oxoandrosta-1,4-diene-17-carboxylic acid) is a compound of interest in studying structure-activity relationships within corticosteroid analogs. In research, this compound is examined for its potential interactions with glucocorticoid receptors, given its structural similarity to fluticasone, which is known for its affinity to these receptors. The 17β-carboxylic acid moiety may alter the compound's binding characteristics. In biochemistry, fluticasone 17β-carboxylic acid is used to probe the metabolic pathways of fluticasone, as it may be a metabolite or intermediate.

Synthesis

To a suspension of flumethasone (1.19 g, 2.9 mmol) in tetrahydrofuran (11 ml) was added a solution of periodic acid (2.25 g, 9.9 mmol) in water (5.3 ml). The resulting solution was stirred at RT for 1 h. The tetrahydrofuran was removed in vacuo to leave an aqueous suspension which was filtered, and the solid washed with water and dried to give 1.17 g (100%) of the (6a,11b,16a,17a)-6,9-Difluoro-11,17-dihydroxy-16-methyl-3-oxoandrosta-1,4-diene-17-carboxylic acid (Fluticasone 17β-Carboxylic Acid) as a colorless solid.
(6a,11b,16a,17a)-6,9-Difluoro-11,17-dihydroxy-16-methyl-3-oxoandrosta-1,4-diene-17-carboxylic acid

References

[1] JIADI ZHOU  Weike S  Can Jin. Improved Synthesis of Fluticasone Propionate[J]. Organic Process Research & Development, 2014, 18 8: 928-933. DOI: 10.1021/op5001226

2135-17-3
28416-82-2
Synthesis of (6a,11b,16a,17a)-6,9-Difluoro-11,17-dihydroxy-16-methyl-3-oxoandrosta-1,4-diene-17-carboxylic acid from Flumethasone

(6a,11b,16a,17a)-6,9-Difluoro-11,17-dihydroxy-16-methyl-3-oxoandrosta-1,4-diene-17-carboxylic acid Preparation Products And Raw materials

Raw materials

Preparation Products

Global Suppliers ( 235)
Supplier Tel Email Country ProdList Advantage
Suizhou Jiake Biological Engineering Co., Ltd. 0722-3632789 18008664168 2549463910@qq.com China 121 58
J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
Adamas Reagent, Ltd. 400-6009262 15618770481 yhx@titansci.com China 14098 59
Chemsky(shanghai)International Co.,Ltd. 021-50135380 shchemsky@sina.com China 32273 50
XiaoGan ShenYuan ChemPharm co,ltd 15527621225; 15527621225 1791901229@qq.com China 6740 52
Wuhan Fortuna Chemical Co., Ltd 027-59207852 13308628970 buy@fortunachem.com China 2684 58
S.Z. PhyStandard Bio-Tech. Co., Ltd. 0755-4000505016 13380397412 3001272453@qq.com China 5000 50
Shanghai T&W Pharmaceutical Co., Ltd. +86 21 61551611 China 9874 58
Nanjing Sunlida Biological Technology Co., Ltd. 025-57798810 18652991625 sales@sunlidabio.com China 3223 55
TargetMol Chemicals Inc. 021-021-33632979 15002134094 marketing@targetmol.com China 7993 58

View Latest Price from (6a,11b,16a,17a)-6,9-Difluoro-11,17-dihydroxy-16-methyl-3-oxoandrosta-1,4-diene-17-carboxylic acid manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
(6a,11b,16a,17a)-6,9-Difluoro-11,17-dihydroxy-16-methyl-3-oxoandrosta-1,4-diene-17-carboxylic acid pictures 2026-08-25 (6a,11b,16a,17a)-6,9-Difluoro-11,17-dihydroxy-16-methyl-3-oxoandrosta-1,4-diene-17-carboxylic acid
28416-82-2
$80.00-800.00 10kg 0.99 20tons Zibo Hangyu Biotechnology Development Co., Ltd
Fluticasone 17β-Carboxylic Acid pictures 2026-04-21 Fluticasone 17β-Carboxylic Acid
28416-82-2
$246.00-1090.00 10g TargetMol Chemicals Inc.
Fluticasone Carboxylic Acid pictures 2026-03-12 Fluticasone Carboxylic Acid
28416-82-2
10mg 98% 500mg ShenZhen H&D Pharmaceutical Technology Co., LTD
impurity J 6a,9a-Difluoro-11b,17a-dihydroxy-16a-methylpregna- 3-oxo-1,4-diene-17b-carboxylic Acid Fluticasone 17b-Carboxylic Acid 6A,9A-DIFLUORO-11SS,17A-DIHYDROXY-3-OXOANDROSTA-1,4-DIENE-17SS-CARBOXYLIC ACID ANDROSTA-1,4-DIENE-17-CARBOXYLIC ACID,6,9-DIFLUORO-11,17- DIHYDROXY-16-METHYL-3-OXO-,(6ALPHA,11BETA,16ALPHA,17ALPHA)- ANDROSTA-1,4-DIENE-17-CARBOXYLIC ACID,6,9-DIFLUORO-11,17- DIHYDROXY-16-METHYL-3-OXO-,(6A,11SS,16A,17A)- (6a,11,16a,17a)-6,9-Difluoro-11,17-dihydroxy-16-methyl-3-oxo-androsta-1,4-diene-17-carboxylic Acid 6a,9a-Difluoro-11,17a-dihydroxy-16a-methylpregna-3-oxo-1,4-diene-17-carboxylic Acid Fluticasone 17-Carboxylic Acid 6α,9-Difluoro-11β-hydroxy-16α-methyl-3-oxo-androsta-1,4-diene-17β-carboxylic acid Fluticasone Impurity 11(Fluticasone USP RC J) Fluticasone USP RC J (6a,11b,16a,17a)-6,9-Difluoro-11,17-dihydroxy-16-M 6a,9a-difluoro-11 P,17a-dihydroxy-16a-methyl-3- oxoandrosta-1,4-diene-17P-carboxylic acid 6α,9α-Difluoro-11β-,17α-dihydroxy-3-oxoandrosta-1,4-diene-17-carboxylic Acid Discontinued see product # F599490 Androsta-1,4-diene-17-carboxylic acid,6,9-difluoro-11,17- dihydroxy-16-Methyl-3-oxo-,(6|á,11|,16|á,17|á)- (6α,11β,16α,17α)-6,9-Difluoro-11,17-dihydroxy-16-Methyl-3-oxo-androsta-1,4-diene-17-carboxylic Acid 6α,9α-Difluoro-11β,17α-dihydroxy-16α-Methylpregna- 3-oxo-1,4-diene-17β-carboxylic Acid (6A,11B,16A,17A)-6,9-DIFLUORO-11,17-diHYDROXY-16-METHY1-3-OXOANDROSTA-1,4-DIENE-17-CAR (6a,9a,11b,16a,17a)-6,9-Difluoro-11,17-dihydroxy-16-methyl-3-oxoandrosta-1,4-diene-17-carboxylic (6S,8S,9R,10S,11S,13S,14S,16R,17R)-6,9-DIFLUORO-11,17-DIHYDRO Fluticasone propionate Intermediates (Flumethasone acid) Fluticasone Carboxylic Acid (6a,9a,11b,16a,17a)-6,9-Difluoro-11,17-dihydroxy-16-methyl-3-oxoandrosta-1,4-diene-17-carboxylic acid (6a,9a,11b,16a,17a)-6,9-Difluoro-11,17-dihydroxy-16-methyl-3-oxoandrosta-1,4-diene-17-carboxyl (6a,11b,16a,17a)-6,9-Difluoro-11,17-dihydroxy-16-methyl-3-oxoandrosta-1,4-diene-17-carboxylic acid ANDROSTA-1,4-DIENE-17-CARBOXYLIC ACID,6,9-DIFLUORO-11,17- DIHYDROXY-16-METHYL-3-OXO-,(6α,11β,16α,17α)- 6a,9a-Difluoro-1117a-dihydroxy-3-oxoandrosta-1,4-diene-17carboxylic Acid Discontinued see product # F599490 Axon 1170 Fluticasone 17-beta-Carboxylic Acid BNKY011-FP01 BNKY012-FF01 Propionate Impurity J (6S,8S,9R,10S,11S,13S,14S,16R,17R) Fluticasone Acid Fluticasone USP Related Compound J Fluticasone IMpurity J Fluticasone Propionate Impurity 1 1,4-diene-17-carboxylic acid (6a,11b,16a,17a)-6,9-Difluoro-11,17-dihydroxy-16-methyl-3-oxoandrosta-1,4-diene-17-carboxylic acid [Flumethasone Acid] 6α,9α-Difluoro-11β-,17α-dihydroxy-3-oxoandrosta-1,4-diene-17β-carboxylic Acid Discontinued see product # F599490 Fluticasone 17β-Carboxylic Acid FLUMETHASONE ACID /CAS NO.:28416-82-2 6α,9α-Difluoro-11β-,17α-dihydroxy-3-oxoandrosta-1,4-diene-17β-carboxylic Acid Discontinued see F599490 6α,9α-difluoro-11β,17α-dihydroxy-16α-methyl-3-oxoandrosta-1,4-diene-17β-carboxylic acid Fluticasone Related Compound J Androsta-1,4-diene-17-carboxylic acid,6,9-difluoro-11,17-dihydroxy-16-methyl-3-oxo-, (6a,11b,16a,17a)- (6a,11b,16a,17a)-6,9-Difluoro-11,17-dihydroxy-16-methyl-3-ox... (6S,9R,10S,11S,13S,16R,17R)-6,9-Difluoro-11,17-dihydroxy-10,13,16-trimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthrene-17-carboxylic acid Fluticasone Propionate Related Compound J (6alpha, 9alpha-difluoro-11beta,17alpha-dihydroxy-16alpha (1285818) flumethason acid Fluticasone Propionate USP Related Compound J (6a,11b,16a,17a)-6 Androsta-1,4-diene-17-carboxylic acid, 6,9-difluoro-11,17-dihydroxy-16-methyl-3-oxo-, (6α,11β,16α,17α)- 17-carboxylic acid (6A,11B,16A,17A)-6,9-Difluoro-11,17-Dihydroxy-16-Methyl-3-Oxoandrosta-1 6a,9a-Difluoro-11b-,17a-dihydroxy-3-oxoandrosta-1,4-diene-17b-carboxylic Acid (6α,11β,16α,17a)-6,9-Difluoro-11,17-dihydroxy-16-methyl-3-oxoandrosta-1,4-diene-17-carboxylic acid