74581-34-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74581-34-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,5,8 and 1 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 74581-34:
(7*7)+(6*4)+(5*5)+(4*8)+(3*1)+(2*3)+(1*4)=143
143 % 10 = 3
So 74581-34-3 is a valid CAS Registry Number.