138979-97-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138979-97-2 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 9 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 138979-97:
(8*1)+(7*3)+(6*8)+(5*9)+(4*7)+(3*9)+(2*9)+(1*7)=202
202 % 10 = 2
So 138979-97-2 is a valid CAS Registry Number.