283179-31-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 283179-31-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,8,3,1,7 and 9 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 283179-31:
(8*2)+(7*8)+(6*3)+(5*1)+(4*7)+(3*9)+(2*3)+(1*1)=157
157 % 10 = 7
So 283179-31-7 is a valid CAS Registry Number.