21853-83-8 Usage
Uses
Used in Pharmaceutical Industry:
16-alpha,17-alpha-epoxy-3,20-dioxopregn-4-en-21-yl acetate is used as an intermediate in the synthesis of various pharmaceutical agents for its potent anti-inflammatory and immunosuppressive properties.
Used in Contraceptive and Hormonal Medications:
16-alpha,17-alpha-epoxy-3,20-dioxopregn-4-en-21-yl acetate is used as a key component in the development of contraceptive and hormonal medications, leveraging its hormonal activity.
Used in Dermatological Treatments:
16-alpha,17-alpha-epoxy-3,20-dioxopregn-4-en-21-yl acetate is used as a potential treatment for various dermatological conditions, such as eczema and psoriasis, due to its anti-inflammatory effects.
Check Digit Verification of cas no
The CAS Registry Mumber 21853-83-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,8,5 and 3 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 21853-83:
(7*2)+(6*1)+(5*8)+(4*5)+(3*3)+(2*8)+(1*3)=108
108 % 10 = 8
So 21853-83-8 is a valid CAS Registry Number.
21853-83-8Relevant academic research and scientific papers
Protiva, Jiri,Nguyen, Thi Thu Huong,Urban, Jiri,Klinotova, Eva
, p. 1095 - 1104 (1997)
21-Acetoxy-16α,17α-epoxypregn-4-ene-3,20-dione (1) enters a reaction with acetonitrile catalyzed by perchloric acid, giving unusual products with the furostane skeleton. In contrast to analogous reactions, the reaction with sodium azide results in the azido derivative possessing the non-rearranged ring D. The 1H NMR, 13C NMR, and mass spectra are discussed.
