649733-59-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 649733-59-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,4,9,7,3 and 3 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 649733-59:
(8*6)+(7*4)+(6*9)+(5*7)+(4*3)+(3*3)+(2*5)+(1*9)=205
205 % 10 = 5
So 649733-59-5 is a valid CAS Registry Number.