215931-03-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 215931-03-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,5,9,3 and 1 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 215931-03:
(8*2)+(7*1)+(6*5)+(5*9)+(4*3)+(3*1)+(2*0)+(1*3)=116
116 % 10 = 6
So 215931-03-6 is a valid CAS Registry Number.