73037-81-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 73037-81-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,0,3 and 7 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 73037-81:
(7*7)+(6*3)+(5*0)+(4*3)+(3*7)+(2*8)+(1*1)=117
117 % 10 = 7
So 73037-81-7 is a valid CAS Registry Number.