83337-90-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 83337-90-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,3,3 and 7 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 83337-90:
(7*8)+(6*3)+(5*3)+(4*3)+(3*7)+(2*9)+(1*0)=140
140 % 10 = 0
So 83337-90-0 is a valid CAS Registry Number.
InChI:InChI=1/C20H20Cl2N2O2.C2H2O4/c21-17-6-7-18(19(22)12-17)20(25,13-24-10-9-23-15-24)14-26-11-8-16-4-2-1-3-5-16;3-1(4)2(5)6/h1-7,9-10,12,15,25H,8,11,13-14H2;(H,3,4)(H,5,6)