157719-19-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 157719-19-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,7,1 and 9 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 157719-19:
(8*1)+(7*5)+(6*7)+(5*7)+(4*1)+(3*9)+(2*1)+(1*9)=162
162 % 10 = 2
So 157719-19-2 is a valid CAS Registry Number.