85720-89-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 85720-89-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,5,7,2 and 0 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 85720-89:
(7*8)+(6*5)+(5*7)+(4*2)+(3*0)+(2*8)+(1*9)=154
154 % 10 = 4
So 85720-89-4 is a valid CAS Registry Number.
InChI:InChI=1/C13H10ClN3O3.Na/c14-10-5-7(15)1-3-11(10)17-16-8-2-4-12(18)9(6-8)13(19)20;/h1-6,17H,15H2,(H,19,20);/q;+1/p-1/b16-8+;