81979-40-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81979-40-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,9,7 and 9 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 81979-40:
(7*8)+(6*1)+(5*9)+(4*7)+(3*9)+(2*4)+(1*0)=170
170 % 10 = 0
So 81979-40-0 is a valid CAS Registry Number.