219958-73-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 219958-73-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,9,9,5 and 8 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 219958-73:
(8*2)+(7*1)+(6*9)+(5*9)+(4*5)+(3*8)+(2*7)+(1*3)=183
183 % 10 = 3
So 219958-73-3 is a valid CAS Registry Number.