841209-33-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 841209-33-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,4,1,2,0 and 9 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 841209-33:
(8*8)+(7*4)+(6*1)+(5*2)+(4*0)+(3*9)+(2*3)+(1*3)=144
144 % 10 = 4
So 841209-33-4 is a valid CAS Registry Number.