73387-42-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 73387-42-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,3,8 and 7 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 73387-42:
(7*7)+(6*3)+(5*3)+(4*8)+(3*7)+(2*4)+(1*2)=145
145 % 10 = 5
So 73387-42-5 is a valid CAS Registry Number.