131999-73-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 131999-73-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,9,9 and 9 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 131999-73:
(8*1)+(7*3)+(6*1)+(5*9)+(4*9)+(3*9)+(2*7)+(1*3)=160
160 % 10 = 0
So 131999-73-0 is a valid CAS Registry Number.