157203-07-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 157203-07-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,2,0 and 3 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 157203-07:
(8*1)+(7*5)+(6*7)+(5*2)+(4*0)+(3*3)+(2*0)+(1*7)=111
111 % 10 = 1
So 157203-07-1 is a valid CAS Registry Number.