331271-27-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 331271-27-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,3,1,2,7 and 1 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 331271-27:
(8*3)+(7*3)+(6*1)+(5*2)+(4*7)+(3*1)+(2*2)+(1*7)=103
103 % 10 = 3
So 331271-27-3 is a valid CAS Registry Number.