p-[(2,4-diaminophenyl)azo]benzenesulphonamide

Modify Date: 2025-08-25 19:45:31

p-[(2,4-diaminophenyl)azo]benzenesulphonamide Structure
p-[(2,4-diaminophenyl)azo]benzenesulphonamide structure
Common Name p-[(2,4-diaminophenyl)azo]benzenesulphonamide
CAS Number 103-12-8 Molecular Weight 291.32900
Density 1.54g/cm3 Boiling Point 601.2ºC at 760mmHg
Molecular Formula C12H13N5O2S Melting Point 249.5°C
MSDS N/A Flash Point 317.4ºC

 Names

Name prontosil
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.54g/cm3
Boiling Point 601.2ºC at 760mmHg
Melting Point 249.5°C
Molecular Formula C12H13N5O2S
Molecular Weight 291.32900
Flash Point 317.4ºC
Exact Mass 291.07900
PSA 145.30000
LogP 4.85730
Vapour Pressure 2.06E-14mmHg at 25°C
Index of Refraction 1.716

 Safety Information

HS Code 2935009090

 Synthetic Route

~%

p-[(2,4-diaminophenyl)azo]benzenesulphonamide Structure

p-[(2,4-diamino...

CAS#:103-12-8

Literature: I.G.Farbenind. Patent: DE607537 , 1932 ; Fortschr. Teerfarbenfabr. Verw. Industriezweige, vol. 21, p. 557 Full Text Show Details Winthrop Chem.Co. Patent: US2085037 , 1933 ; Full Text Show Details Magidson; Rubzow Zhurnal Obshchei Khimii, 1940 , vol. 10, p. 756,765 Chem. Zentralbl., 1940 , vol. 111, # II p. 2605 Full Text Show Details Itai; Ojima; Yazawa Yakugaku Zasshi, 1937 , vol. 57, p. 592,596; dtsch. Ref. S. 130 Chem.Abstr., 1937 , p. 6210

 Precursor & DownStream

Precursor  2

DownStream  0

 Customs

HS Code 2935009090
Summary 2935009090 other sulphonamides VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:35.0%

 Synonyms

4-(2,4-diamino-phenylazo)-benzenesulfonic acid amide
4'-sulfamyl-2,4-diaminoazobenzene
Aseptil rojo (TN)
4-[(2,4-diaminophenyl)azo]-benzenesulfonamide
2'.4'-Diamino-azobenzol-sulfonsaeure-(4)-amid
streptocide
EINECS 203-081-2
Prontosil rubrum
Sulfamidochrysoidine
p-((2,4-Diaminophenyl)azo)benzenesulphonamide
4-[(2,4-diaminophenyl)diazenyl]benzenesulfonamide
4-(2,4-Diamino-phenylazo)-benzolsulfonsaeure-amid
p-[(2,4-diaminophenyl)azo]benzenesulfonamide
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