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| | 2,5-Diaminobenzenesulfonic acid Basic information |
| Product Name: | 2,5-Diaminobenzenesulfonic acid | | Synonyms: | 1,4-PHENYLENEDIAMINE-2-SULPHONIC ACID;1,4-PHENYLENEDIAMINE-3-SULFONIC ACID;1,4 DIAMINOBENZENE 2 SULFONIC ACID;2,5-DIAMINOBENZENESULFONIC ACID;2,5-DiaMinobenzenesulfonic acid, 97%, contains <10% Monohydrochloride salt;1,4-Diamino-2-benzenesulfonic acid;2,5-Diaminophenyl-1-sulfonic acid;2,5-Diaminobenzene-1-sulfonic acid | | CAS: | 88-45-9 | | MF: | C6H8N2O3S | | MW: | 188.2 | | EINECS: | 201-832-9 | | Product Categories: | Organic Building Blocks;Sulfonic/Sulfinic Acids;Intermediates of Dyes and Pigments;Sulfur Compounds;Building Blocks;Chemical Synthesis;Organic Building Blocks;Sulfonic/Sulfinic Acids;Sulfur Compounds | | Mol File: | 88-45-9.mol |  |
| | 2,5-Diaminobenzenesulfonic acid Chemical Properties |
| Melting point | 298-300 °C (dec.) (lit.) | | Boiling point | 500°C | | density | 1.366 (estimate) | | vapor pressure | 0Pa at 25℃ | | refractive index | 1.6490 (estimate) | | storage temp. | Keep in dark place,Inert atmosphere,Room temperature | | solubility | 2.308g/L in organic solvents at 20 ℃ | | pka | 5.17±0.10(Predicted) | | form | solid | | color | White to Light gray to Light orange | | Water Solubility | 4g/L at 26℃ | | BRN | 2970398 | | InChI | 1S/C6H8N2O3S/c7-4-1-2-5(8)6(3-4)12(9,10)11/h1-3H,7-8H2,(H,9,10,11) | | InChIKey | HEAHMJLHQCESBZ-UHFFFAOYSA-N | | SMILES | Nc1ccc(N)c(c1)S(O)(=O)=O | | LogP | 0.146 at 26℃ | | CAS DataBase Reference | 88-45-9(CAS DataBase Reference) | | EPA Substance Registry System | Benzenesulfonic acid, 2,5-diamino- (88-45-9) |
| Hazard Codes | C,Xi | | Risk Statements | 34-36/37/38 | | Safety Statements | 26-36/37/39-45-36 | | RIDADR | UN 2583 8/PG 2 | | WGK Germany | 2 | | RTECS | DB5900100 | | TSCA | TSCA listed | | HS Code | 2921.59.8090 | | HazardClass | 8 | | PackingGroup | III | | Storage Class | 8A - Combustible corrosive hazardous materials | | Hazard Classifications | Eye Dam. 1
Skin Corr. 1B |
| | 2,5-Diaminobenzenesulfonic acid Usage And Synthesis |
| Chemical Properties | violet powder | | Uses | 2,5-Diaminobenzenesulfonic acid was used in preparation of a polymeric dye, required for laccase-mediated dyeing of cotton. | | General Description | 2,5-Diaminobenzenesulfonic acid is a dye precursor. Electrochemical copolymerization of 2,5-diaminobenzensulfonic acid and aniline by cyclic voltammetry on IrO2 coated titanium electrodes was reported. | | Flammability and Explosibility | Non flammable | | Synthesis | Weigh 39g of iron powder added to 1000mL four flask, add water 300mL stirring, add 6g of ammonium chloride and 4mL concentrated hydrochloric acid, warming to 95 , slowly add nitro to add speed to regulate the temperature to maintain above 90 , add too fast easy to rush material danger, add continue to hold for a period of time, when taking a drop of the reaction liquid drop to the disappearance of the yellow ooze circle on the filter paper that is the end point of the reaction, add sodium hydroxide solution to adjust pH = 10, filtration, filtration is 2,5-diaminobenzenesulfonic acid. Add sodium hydroxide solution, adjust pH=10, filter, add hydrochloric acid to the filtrate acid precipitation, filtration that is 2,5-diaminobenzenesulfonic acid. |
| | 2,5-Diaminobenzenesulfonic acid Preparation Products And Raw materials |
| Preparation Products | Reactive Blue 74-->disodium 5-((4-acetylamino-2-sulphophenyl)azo)-6-amino-4-hydroxynaphthalene-2-disulphonate-->Reactive Blue 49-->REACTIVE BLUE 2-->hexasodium 4-amino-3,6-bis[[4-[[4-chloro-6-[(3-sulphonatophenyl)amino]-1,3,5-triazin-2-yl]amino]-2-sulphonatophenyl]azo]-5-hydroxynaphthalene-2,7-disulphonate-->Benzenesulfonic acid, 2-[[2-(methylamino)-1-naphthalenyl]azo]-5-nitro-, monosodium salt-->Acid Yellow 158:1-->Reactive Blue 94-->4-Amino-3-[[4'-[(2,7-diamino-1-naphtyl)azo]-1,1'-biphenyl-4-yl]azo]-5-hydroxy-6-[(4-nitro-2-sulfophenyl)azo]-2,7-naphthalenedisulfonic acid trisodium salt-->Levafix Brilliant Blue E-B-->Reactive Orange 29-->REACTIVE ORANGE 14-->Direct Red 75 tetrasodium salt-->Acid Red 34-->1-amino-4-(4-amino-2-sulphoanilino)-9,10-dihydro-9,10-dioxoanthracene-2-sulphonic acid |
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