19474-74-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 19474-74-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,4,7 and 4 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 19474-74:
(7*1)+(6*9)+(5*4)+(4*7)+(3*4)+(2*7)+(1*4)=139
139 % 10 = 9
So 19474-74-9 is a valid CAS Registry Number.