42812-33-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42812-33-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,8,1 and 2 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 42812-33:
(7*4)+(6*2)+(5*8)+(4*1)+(3*2)+(2*3)+(1*3)=99
99 % 10 = 9
So 42812-33-9 is a valid CAS Registry Number.