69389-41-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 69389-41-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,9,3,8 and 9 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 69389-41:
(7*6)+(6*9)+(5*3)+(4*8)+(3*9)+(2*4)+(1*1)=179
179 % 10 = 9
So 69389-41-9 is a valid CAS Registry Number.
69389-41-9Relevant articles and documents
The Participation of 3,5-Cyclosteroids in Aromatization Reactions
Hanson, James R.,Knights, Steve G.
, p. 1306 - 1310 (2007/10/02)
The preparation of 6β,7β-dihydroxy-3α-5-cycloandrostan-17-one and 2β,17β-diacetoxy-6α-hydroxy-3α,5-cycloandrostane and their reaction with hydrobromic acid in acetic acid is described.They both afford the corresponding 4-methylestratriene accompanied by,
