671793-68-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 671793-68-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,7,1,7,9 and 3 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 671793-68:
(8*6)+(7*7)+(6*1)+(5*7)+(4*9)+(3*3)+(2*6)+(1*8)=203
203 % 10 = 3
So 671793-68-3 is a valid CAS Registry Number.