89923-51-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89923-51-3 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 1 respectively.
Calculate Digit Verification of CAS Registry Number 89923-51:
(7*8)+(6*9)+(5*9)+(4*2)+(3*3)+(2*5)+(1*1)=183
183 % 10 = 3
So 89923-51-3 is a valid CAS Registry Number.
InChI:InChI=1/C20H17Br2N5O8S2.2Na/c21-9-15(22)19(28)24-11-3-4-16(17(7-11)25-20(23)29)27-26-12-2-1-10-5-13(36(30,31)32)8-18(14(10)6-12)37(33,34)35;;/h1-8,15H,9H2,(H,24,28)(H3,23,25,29)(H,30,31,32)(H,33,34,35);;/q;2*+1/p-2/b27-26+;;