6446-40-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 6446-40-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,4,4 and 6 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 6446-40:
(6*6)+(5*4)+(4*4)+(3*6)+(2*4)+(1*0)=98
98 % 10 = 8
So 6446-40-8 is a valid CAS Registry Number.