649734-47-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 649734-47-4 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 4 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 649734-47:
(8*6)+(7*4)+(6*9)+(5*7)+(4*3)+(3*4)+(2*4)+(1*7)=204
204 % 10 = 4
So 649734-47-4 is a valid CAS Registry Number.