18776-31-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 18776-31-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,7,7 and 6 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 18776-31:
(7*1)+(6*8)+(5*7)+(4*7)+(3*6)+(2*3)+(1*1)=143
143 % 10 = 3
So 18776-31-3 is a valid CAS Registry Number.