442682-77-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 442682-77-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,2,6,8 and 2 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 442682-77:
(8*4)+(7*4)+(6*2)+(5*6)+(4*8)+(3*2)+(2*7)+(1*7)=161
161 % 10 = 1
So 442682-77-1 is a valid CAS Registry Number.