72103-20-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 72103-20-9 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 3 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 72103-20:
(7*7)+(6*2)+(5*1)+(4*0)+(3*3)+(2*2)+(1*0)=79
79 % 10 = 9
So 72103-20-9 is a valid CAS Registry Number.
InChI:InChI=1/CHI3.Ca.2H2O/c2-1(3)4;;;/h1H;;2*1H2/q;+2;;/p-2