129154-64-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 129154-64-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,1,5 and 4 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 129154-64:
(8*1)+(7*2)+(6*9)+(5*1)+(4*5)+(3*4)+(2*6)+(1*4)=129
129 % 10 = 9
So 129154-64-9 is a valid CAS Registry Number.
129154-64-9Relevant academic research and scientific papers
Cycloaddition Route to 14,17-Ethano- and 14-Alkyl-19-norsteroids
Bull, James R.,Thomson, Russell I.
, p. 241 - 252 (2007/10/02)
Cycloaddition of phenyl vinyl sulphone to 14,16-dien-17-yl acetates derived from estrone proceeds regio- and stereo-selectively to give intermediates for conversion into 14,17α-ethenoestra-1,3,5(10)-triene-3,17β-diol derivatives and related ring D bridged
