311806-50-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 311806-50-5 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 6 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 311806-50:
(8*3)+(7*1)+(6*1)+(5*8)+(4*0)+(3*6)+(2*5)+(1*0)=105
105 % 10 = 5
So 311806-50-5 is a valid CAS Registry Number.