811842-63-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 811842-63-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,1,1,8,4 and 2 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 811842-63:
(8*8)+(7*1)+(6*1)+(5*8)+(4*4)+(3*2)+(2*6)+(1*3)=154
154 % 10 = 4
So 811842-63-4 is a valid CAS Registry Number.