2391-10-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 2391-10-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,3,9 and 1 respectively; the second part has 2 digits, 1 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 2391-10:
(6*2)+(5*3)+(4*9)+(3*1)+(2*1)+(1*0)=68
68 % 10 = 8
So 2391-10-8 is a valid CAS Registry Number.