74903-82-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74903-82-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,9,0 and 3 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 74903-82:
(7*7)+(6*4)+(5*9)+(4*0)+(3*3)+(2*8)+(1*2)=145
145 % 10 = 5
So 74903-82-5 is a valid CAS Registry Number.