864665-57-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 864665-57-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,6,4,6,6 and 5 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 864665-57:
(8*8)+(7*6)+(6*4)+(5*6)+(4*6)+(3*5)+(2*5)+(1*7)=216
216 % 10 = 6
So 864665-57-6 is a valid CAS Registry Number.