157402-68-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 157402-68-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,4,0 and 2 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 157402-68:
(8*1)+(7*5)+(6*7)+(5*4)+(4*0)+(3*2)+(2*6)+(1*8)=131
131 % 10 = 1
So 157402-68-1 is a valid CAS Registry Number.