72973-32-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 72973-32-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,9,7 and 3 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 72973-32:
(7*7)+(6*2)+(5*9)+(4*7)+(3*3)+(2*3)+(1*2)=151
151 % 10 = 1
So 72973-32-1 is a valid CAS Registry Number.