81509-53-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81509-53-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,5,0 and 9 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 81509-53:
(7*8)+(6*1)+(5*5)+(4*0)+(3*9)+(2*5)+(1*3)=127
127 % 10 = 7
So 81509-53-7 is a valid CAS Registry Number.
81509-53-7Relevant academic research and scientific papers
Plenat, Francoise
, p. 4705 - 4708 (1981)
A new synthetic route to alcadien-1,3 yl phosphonium salts is given.