649723-76-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 649723-76-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,4,9,7,2 and 3 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 649723-76:
(8*6)+(7*4)+(6*9)+(5*7)+(4*2)+(3*3)+(2*7)+(1*6)=202
202 % 10 = 2
So 649723-76-2 is a valid CAS Registry Number.