39724-77-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 39724-77-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,9,7,2 and 4 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 39724-77:
(7*3)+(6*9)+(5*7)+(4*2)+(3*4)+(2*7)+(1*7)=151
151 % 10 = 1
So 39724-77-1 is a valid CAS Registry Number.