13566-21-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 13566-21-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,5,6 and 6 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 13566-21:
(7*1)+(6*3)+(5*5)+(4*6)+(3*6)+(2*2)+(1*1)=97
97 % 10 = 7
So 13566-21-7 is a valid CAS Registry Number.
InChI:InChI=1/La.5NO3.2H3N/c;5*2-1(3)4;;/h;;;;;;2*1H3/q+3;5*-1;;/p+2