83972-54-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 83972-54-7 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 4 respectively.
Calculate Digit Verification of CAS Registry Number 83972-54:
(7*8)+(6*3)+(5*9)+(4*7)+(3*2)+(2*5)+(1*4)=167
167 % 10 = 7
So 83972-54-7 is a valid CAS Registry Number.