5-Amino-1-naphthalenesulfonic acid
|
|
5-Amino-1-naphthalenesulfonic acid ??
- ???
- >300°C
- ?? ?
- 220°C (rough estimate)
- ??
- 1.3588 (rough estimate)
- ???
- 1.6500 (estimate)
- ???
- ??? ?? (?? ???), DMSO (?? ???)
- ?? ?? (pKa)
- pK1: 3.69 (25°C)
- ??? ??
- powder to crystal
- ??
- Purple to Dark purple to Dark red
- ???
- ??? ?? ?????.
- Merck
- 14,6404
- BRN
- 2214149
- InChI
- 1S/C10H9NO3S/c11-9-5-1-4-8-7(9)3-2-6-10(8)15(12,13)14/h1-6H,11H2,(H,12,13,14)
- InChIKey
- DQNAQOYOSRJXFZ-UHFFFAOYSA-N
- SMILES
- Nc1cccc2c(cccc12)S(O)(=O)=O
- CAS ??????
- 84-89-9(CAS DataBase Reference)
??
- ?? ? ?? ??
- ?? ? ???? ?? (GHS)
| ??? ?? | C | ||
|---|---|---|---|
| ?? ???? ?? | 20/21/22-34 | ||
| ????? | 26-36/37/39-45 | ||
| ????(UN No.) | UN 2585 8/PG 3 | ||
| WGK ?? | 3 | ||
| RTECS ?? | QK1270500 | ||
| TSCA | TSCA listed | ||
| HS ?? | 2921.45.2000 | ||
| ?? ?? | 8 | ||
| ???? | III | ||
| ???? ??? | 8B - Non-combustible corrosive hazardous materials | ||
| Hazard Classifications | Acute Tox. 4 Dermal Skin Corr. 1B |
||
| ???? ?? | KE-01498 |
5-Amino-1-naphthalenesulfonic acid C??? ??, ??, ??
??? ??
1-Aminonaphthalene-5-sulfonic acid [84- 89-9]. (5-aminonaphthalene-1-sulfonic acid), Laurent’s acid, L acid, Purpurin acid, C10H9NO3S, Mr 223.24, crystallizes from hot water as needles of the monohydrate. The alkalimetal salts are all readily soluble in water. Bromination yields the 2,4-dibromo derivative, vigorous nitration gives 2,4-dinitro-1- hydroxynaphthalene, and sulfonation results in 1-aminonaphthalene-2,5,7-trisulfonic acid. 1- Hydroxynaphthalene-5-sulfonic acid is obtained by heating 104 with aqueous bisulfite (reverseBucherer reaction) or via the diazo compound. Caustic fusion produces 5-amino-1-hydroxynaphthalene. Coupling with diazo compounds takes place in the 2-position.??
Intermediate of dyestuffPurification Methods
Crystallise the acid under nitrogen from boiling water and dry it in a steam oven [Bryson Trans Faraday Soc 47 522, 527 1951]. [Beilstein 14 IV 2800.]5-Amino-1-naphthalenesulfonic acid ?? ?? ? ???
???
Peri acid
????
Magnesite
??
??
1-???????, ????
??
5-???????-1-???
5-???????-1-???
2-??????? ?????
N-Acetyl-1-aminonaphthalene
1-?????
?? ??
5-Amino-1-naphthalenesulfonic acid ?? ??
???( 256)?? ??
| ??? | ?? | ??? | ?? | ?? ? | ?? |
|---|---|---|---|---|---|
| Hebei Chuanghai Biotechnology Co., Ltd | +8615350571055 |
Sibel@chuanghaibio.com | China | 8738 | 58 |
| Henan Bao Enluo International TradeCo.，LTD | +86-17331933971 |
deasea125996@gmail.com | China | 2472 | 58 |
| Anhuyan (Hainan) Biotechnology Co., LTD | +8618163349544 |
mollylucking@foxmail.com | China | 3000 | 58 |
| Capot Chemical Co.,Ltd. | +86-（0）57185586718 +86-13336195806 |
sales@capot.com | China | 29640 | 60 |
| CONIER CHEM AND PHARMA LIMITED | +8618523575427 |
sales@conier.com | China | 49979 | 58 |
| career henan chemical co | +86-0371-86658258 +8613203830695 |
factory@coreychem.com | China | 29792 | 58 |
| SIMAGCHEM CORP | +86-5922680277 +86-13806087780 |
sale@simagchem.com | China | 17346 | 58 |
| Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418671 +8618949823763 |
sales@tnjchem.com | China | 34563 | 58 |
| Dideu Industries Group Limited | +86-29-89586680 +86-15129568250 |
1026@dideu.com | China | 28009 | 58 |
| Wuhan Fortuna Chemical Co., Ltd | +86-27-59207850 |
info@fortunachem.com | China | 5983 | 58 |