89923-50-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89923-50-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,9,2 and 3 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 89923-50:
(7*8)+(6*9)+(5*9)+(4*2)+(3*3)+(2*5)+(1*0)=182
182 % 10 = 2
So 89923-50-2 is a valid CAS Registry Number.
InChI:InChI=1/C23H22Cl2N8O5S.Na/c1-11(2)38-23-28-21(25)27-22(29-23)26-14-8-9-17(39(35,36)37)16(10-14)30-31-18-13(4)32-33(20(18)34)19-12(3)6-5-7-15(19)24;/h5-11,18H,1-4H3,(H,35,36,37)(H,26,27,28,29);/q;+1/p-1/b31-30+;