791644-56-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 791644-56-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,9,1,6,4 and 4 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 791644-56:
(8*7)+(7*9)+(6*1)+(5*6)+(4*4)+(3*4)+(2*5)+(1*6)=199
199 % 10 = 9
So 791644-56-9 is a valid CAS Registry Number.