72101-38-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 72101-38-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,1,0 and 1 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 72101-38:
(7*7)+(6*2)+(5*1)+(4*0)+(3*1)+(2*3)+(1*8)=83
83 % 10 = 3
So 72101-38-3 is a valid CAS Registry Number.