311805-64-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 311805-64-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,1,1,8,0 and 5 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 311805-64:
(8*3)+(7*1)+(6*1)+(5*8)+(4*0)+(3*5)+(2*6)+(1*4)=108
108 % 10 = 8
So 311805-64-8 is a valid CAS Registry Number.