138972-86-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138972-86-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,9,7 and 2 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 138972-86:
(8*1)+(7*3)+(6*8)+(5*9)+(4*7)+(3*2)+(2*8)+(1*6)=178
178 % 10 = 8
So 138972-86-8 is a valid CAS Registry Number.