199724-46-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 199724-46-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,9,7,2 and 4 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 199724-46:
(8*1)+(7*9)+(6*9)+(5*7)+(4*2)+(3*4)+(2*4)+(1*6)=194
194 % 10 = 4
So 199724-46-4 is a valid CAS Registry Number.