99744-80-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 99744-80-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,7,4 and 4 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 99744-80:
(7*9)+(6*9)+(5*7)+(4*4)+(3*4)+(2*8)+(1*0)=196
196 % 10 = 6
So 99744-80-6 is a valid CAS Registry Number.