83972-52-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 83972-52-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,9,7 and 2 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 83972-52:
(7*8)+(6*3)+(5*9)+(4*7)+(3*2)+(2*5)+(1*2)=165
165 % 10 = 5
So 83972-52-5 is a valid CAS Registry Number.