21936-08-3 Usage
Uses
A protected metabolite of Testosterone (T155000) in human.
Check Digit Verification of cas no
The CAS Registry Mumber 21936-08-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,9,3 and 6 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 21936-08:
(7*2)+(6*1)+(5*9)+(4*3)+(3*6)+(2*0)+(1*8)=103
103 % 10 = 3
So 21936-08-3 is a valid CAS Registry Number.
InChI:InChI=1/C23H32O5/c1-13(24)27-20-12-23(4)15(11-19(20)26)5-6-16-17-7-8-21(28-14(2)25)22(17,3)10-9-18(16)23/h11,16-18,20-21H,5-10,12H2,1-4H3/t16-,17-,18-,20+,21-,22-,23-/m0/s1
21936-08-3Relevant articles and documents
An Improved Method for the Synthesis of 2-Acetoxysteroid-4-en-3-ones
Ohnishi, Shuhei,Osawa, Yoshio
, p. 1089 - 1090 (1986)
An improved method is described for the one-step preparation of 2-acetoxysteroid-4-en-3-ones using commercially available lead tetra-acetate in dry benzene.