649579-33-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 649579-33-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,4,9,5,7 and 9 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 649579-33:
(8*6)+(7*4)+(6*9)+(5*5)+(4*7)+(3*9)+(2*3)+(1*3)=219
219 % 10 = 9
So 649579-33-9 is a valid CAS Registry Number.