77321-48-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77321-48-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,3,2 and 1 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 77321-48:
(7*7)+(6*7)+(5*3)+(4*2)+(3*1)+(2*4)+(1*8)=133
133 % 10 = 3
So 77321-48-3 is a valid CAS Registry Number.