33513-44-9 Usage
Uses
Disodium 4-Formyl-1,3-benzenedisulfonate was used in the synthesis of symmetric and asymmetric xanthene dyes which can be used as components pf fluorescence-based sensors for imaging applications. It was also used in the synthesis of oxadiazole-based stilbene optical brighteners which act as ultraviolet radiation protectant for insect baculovirus.
Check Digit Verification of cas no
The CAS Registry Mumber 33513-44-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,3,5,1 and 3 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 33513-44:
(7*3)+(6*3)+(5*5)+(4*1)+(3*3)+(2*4)+(1*4)=89
89 % 10 = 9
So 33513-44-9 is a valid CAS Registry Number.
InChI:InChI=1/C7H6O7S2.2Na/c8-4-5-1-2-6(15(9,10)11)3-7(5)16(12,13)14;;/h1-4H,(H,9,10,11)(H,12,13,14);;/q;2*+1/p-2/rC7H4Na2O7S2/c8-15-17(11,12)6-2-1-5(4-10)7(3-6)18(13,14)16-9/h1-4H
33513-44-9Relevant articles and documents
Structure-stability correlations for imine formation in aqueous solution
Godoy-Alcantar,Yatsimirsky, Anatoly K.,Lehn
, p. 979 - 985 (2007/10/03)
Imine formation between 25 aldehydes and 13 amines in aqueous solution in the pH range 7-11 was studied by 1H NMR spectroscopy. A three-parameter linear equation correlating logarithms of imine formation constants with pKa and HOMO energies of amines and LUMO energies of aldehydes is proposed. In view of the widespread occurrence of imine-forming processes in both chemistry and biology, the data presented are of significance for physical organic chemistry and of particular interest for dynamic combinatorial chemistry. Copyright
