4819-12-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4819-12-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,8,1 and 9 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 4819-12:
(6*4)+(5*8)+(4*1)+(3*9)+(2*1)+(1*2)=99
99 % 10 = 9
So 4819-12-9 is a valid CAS Registry Number.