71847-73-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 71847-73-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,8,4 and 7 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 71847-73:
(7*7)+(6*1)+(5*8)+(4*4)+(3*7)+(2*7)+(1*3)=149
149 % 10 = 9
So 71847-73-9 is a valid CAS Registry Number.