157834-53-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 157834-53-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,8,3 and 4 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 157834-53:
(8*1)+(7*5)+(6*7)+(5*8)+(4*3)+(3*4)+(2*5)+(1*3)=162
162 % 10 = 2
So 157834-53-2 is a valid CAS Registry Number.