72907-72-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 72907-72-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,9,0 and 7 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 72907-72:
(7*7)+(6*2)+(5*9)+(4*0)+(3*7)+(2*7)+(1*2)=143
143 % 10 = 3
So 72907-72-3 is a valid CAS Registry Number.