157674-57-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 157674-57-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,6,7 and 4 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 157674-57:
(8*1)+(7*5)+(6*7)+(5*6)+(4*7)+(3*4)+(2*5)+(1*7)=172
172 % 10 = 2
So 157674-57-2 is a valid CAS Registry Number.