312908-57-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 312908-57-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,1,2,9,0 and 8 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 312908-57:
(8*3)+(7*1)+(6*2)+(5*9)+(4*0)+(3*8)+(2*5)+(1*7)=129
129 % 10 = 9
So 312908-57-9 is a valid CAS Registry Number.