312631-09-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 312631-09-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,1,2,6,3 and 1 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 312631-09:
(8*3)+(7*1)+(6*2)+(5*6)+(4*3)+(3*1)+(2*0)+(1*9)=97
97 % 10 = 7
So 312631-09-7 is a valid CAS Registry Number.