157286-83-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 157286-83-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,2,8 and 6 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 157286-83:
(8*1)+(7*5)+(6*7)+(5*2)+(4*8)+(3*6)+(2*8)+(1*3)=164
164 % 10 = 4
So 157286-83-4 is a valid CAS Registry Number.