311312-65-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 311312-65-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,1,1,3,1 and 2 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 311312-65:
(8*3)+(7*1)+(6*1)+(5*3)+(4*1)+(3*2)+(2*6)+(1*5)=79
79 % 10 = 9
So 311312-65-9 is a valid CAS Registry Number.