Dapsone

• Formula: C₁₂H₁₂N₂O₂S
• Molecular weight: 248.301
• IUPAC Standard InChI: InChI=1S/C12H12N2O2S/c13-9-1-5-11(6-2-9)17(15,16)12-7-3-10(14)4-8-12/h1-8H,13-14H2 Copy

  
• IUPAC Standard InChIKey: MQJKPEGWNLWLTK-UHFFFAOYSA-N Copy
• CAS Registry Number: 80-08-0
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
  The 3d structure may be viewed using Java or Javascript.
• Other names: Benzenamine, 4,4'-sulfonylbis-; Aniline, 4,4'-sulfonyldi-; p-Aminophenyl sulfone; p,p'-diaminodiphenyl sulfone; p,p'-sulfonyldianiline; Avlosulfon; Avlosulfone; Bis(p-aminophenyl) sulfone; Bis(4-aminophenyl) sulfone; Croysulfone; Dapson; Di(p-aminophenyl) sulfone; Di(4-aminophenyl) sulfone; Diaphenyl sulfone; Diphenasone; Diphone; Disulone; Dumitone; DADPS; DDS; DSS; Eporal; F 1358; Metabolite C; Novophone; Sulfadione; Sulfona; Sulfona-MAE; Udolac; 1,1'-Sulfonylbis[4-aminobenzene]; 1358F; 4,4'-Diaminodiphenyl Sulfone; 4,4'-Sulfonylbis[benzamine]; 4,4'-Sulfonyldianiline; 4-Aminophenyl sulfone; Diaminodiphenyl sulfone; Diaphenylsulfon; DDS, pharmaceutical; N,N'-Diphenyl sulfondiamide; NCI-C01718; NSC 6091D; WR 448; Avlosulphone; Bis(p-aminophenyl)sulphone; Bis(4-aminophenyl)sulphone; Croysulphone; Dapsonum; 4,4-Diaminodifenylsulfon; Diaminodifenilsulfona; Diamino-4,4'-diphenyl sulfone; Diamino-4,4'-diphenyl sulphone; p,p-Diaminodiphenyl sulphone; 4,4'-Diaminodiphenyl sulphone; Di(p-aminophenyl)sulphone; Di(4-aminophenyl)sulphone; Diaphenylsulphon; Diaphenylsulphone; Dubronax; ICI; NSC-6091; Sulfone UCB; 4,4'-Sulfonylbisaniline; p,p-Sulfonylbisbenzamine; p,p-Sulfonylbisbenzenamine; Sulphadione; Sulphon-Mere; 1,1'-Sulphonylbis(4-aminobenzene); p,p-Sulphonylbisbenzamine; 4,4'-Sulphonylbisbenzamine; p,p-Sulphonylbisbenzenamine; 4,4'-Sulphonylbisbenzenamine; Sulphonyldianiline; p,p-Sulphonyldianiline; 4,4'-Sulphonyldianiline; Tarimyl; 4,4'-Dapsone; 4,4'-DDS; 4,4'-Sulfonylbisbenzeneamine; Araldite HT 976; DDS, diaphenylsulfone; Dimitone; Sulfanona-mae; Sulfon-mere; Sulfonyldianiline; Sumicure S; Dianiline, 4,4'-sulfonyl-; 4,4'-Sulfonyldiphenylamine; Servidapson; HT 976; HT 9664
• Permanent link for this species. Use this link for bookmarking this species for future reference.
• Information on this page:
  • Condensed phase thermochemistry data
  • Phase change data
  • Gas phase ion energetics data
  • References
  • Notes
• Other data available:
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • Gas Chromatography
• Options:
  • Switch to SI units

Data at NIST subscription sites:

• NIST / TRC Web Thermo Tables, professional edition (thermophysical and thermochemical data)

NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.

Condensed phase thermochemistry data

Go To: Top, Phase change data, Gas phase ion energetics data, References, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: Eugene S. Domalski and Elizabeth D. Hearing

Constant pressure heat capacity of solid

Phase change data

Go To: Top, Condensed phase thermochemistry data, Gas phase ion energetics data, References, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled as indicated in comments:
DH - Eugene S. Domalski and Elizabeth D. Hearing
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director

Gas phase ion energetics data

Go To: Top, Condensed phase thermochemistry data, Phase change data, References, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi

Ionization energy determinations

References

Go To: Top, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Lesbats and Lichanot, 1987
Lesbats, C.; Lichanot, A., Capacites calorifiques de durcisseurs amines et resines epoxydes, Thermochim. Acta, 1987, 109, 317-329. [all data]

Grady, Hays, et al., 1973
Grady, L.T.; Hays, S.E.; King, R.H.; Klein, H.R.; Mader, W.J.; Wyatt, D.K.; Zimmere, R.O., Drug purity profiles, J. Pharm. Sci., 1973, 62, 459. [all data]

Evlasheva, Puchkova, et al., 1975
Evlasheva, T.I.; Puchkova, V.V.; Potapov, V.K.; Gur'yanova, E.N., Ionisation potentials and electron-donating properties of sulphones, Russ. J. Phys. Chem., 1975, 49, 453. [all data]

Pykhtina, Cherednichenko, et al., 1974
Pykhtina, E.V.; Cherednichenko, L.V.; Kardash, I.E.; Evlasheva, T.I.; Sorokin, V.V.; Potapov, V.K.; Pravednikov, A.N., Ionization potentials of amines and energies of charge transfer bands in the absorption spectra of complexes of 7,7,8,8-tetracyanoquinodimethan, High Energy Chem., 1974, 8, 257, In original 307. [all data]

Notes

Go To: Top, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, References

• Symbols used in this document:
  

  Cp,solid	Constant pressure heat capacity of solid
  Tfus	Fusion (melting) point

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
• The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
• Customer support for NIST Standard Reference Data products.