1643323-24-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1643323-24-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,4,3,3,2 and 3 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1643323-24:
(9*1)+(8*6)+(7*4)+(6*3)+(5*3)+(4*2)+(3*3)+(2*2)+(1*4)=143
143 % 10 = 3
So 1643323-24-3 is a valid CAS Registry Number.