| 1-Amino-2-naphthol-4-sulfonic acid Basic information |
| Product Name: | 1-Amino-2-naphthol-4-sulfonic acid |
| Synonyms: | 4-Amino-3-hydroxy-1-naphthalenesulfonic acid, ACS, 98+%;1-AMINO-2-NAPHTH-4-SULFONIC AC;1-amino-2-naphthol-4-sulfonic acid test solution(ChP);1-AMINO-2-NAPHTHOL-4-SULPHONIC ACID extrapure AR;3-Hydroxynaphthionic acid;4-Amino-3-hydroxy-1-naphthalenesulfonic acid,95%;4-amino-3-hydroxy-1-Naphthalenesulfonic acid 1-amino-2-naphthol-4-sulfonic acid 4-Amino-3-hydroxynaphthalene-1-sulfonic acid;4-Amino-3-hydroxy-1-naphthalenesulfonic acid,1-Amino-2-naphthol-4-sulfonic acid |
| CAS: | 116-63-2 |
| MF: | C10H9NO4S |
| MW: | 239.25 |
| EINECS: | 204-147-3 |
| Product Categories: | Building Blocks;Chemical Synthesis;Intermediates of Dyes and Pigments;Organic Building Blocks;Sulfonic/Sulfinic Acids;Sulfur Compounds;Sulphur Derivatives;Organic acids |
| Mol File: | 116-63-2.mol |
| 1-Amino-2-naphthol-4-sulfonic acid Chemical Properties |
| Melting point | 290 °C (dec.)(lit.) |
| density | 1.4338 (rough estimate) |
| refractive index | 1.6500 (estimate) |
| storage temp. | Store below +30°C. |
| solubility | DMSO (Slightly), Methanol (Slightly) |
| pka | -0.49±0.40(Predicted) |
| form | Powder |
| color | White to light pink |
| Water Solubility | insoluble |
| Merck | 14,454 |
| BRN | 2697469 |
| Stability: | Stable. Incompatible with strong bases, acid chlorides, acid anhydrides, strong oxidizing agents. |
| InChIKey | RXCMFQDTWCCLBL-UHFFFAOYSA-N |
| CAS DataBase Reference | 116-63-2(CAS DataBase Reference) |
| NIST Chemistry Reference | 1-Naphthalenesulfonic acid,4-amino-3-hydroxy-(116-63-2) |
| EPA Substance Registry System | 1-Naphthalenesulfonic acid, 4-amino-3-hydroxy- (116-63-2) |
| Safety Information |
| Hazard Codes | Xi |
| Risk Statements | 36/37/38 |
| Safety Statements | 37/39-26 |
| RIDADR | 3265 |
| WGK Germany | 3 |
| RTECS | QK1292000 |
| TSCA | Yes |
| HazardClass | IRRITANT |
| PackingGroup | III |
| HS Code | 29222100 |
| MSDS Information |
| Provider | Language |
|---|---|
| 4-Amino-3-hydroxynaphthalene-1-sulphonic acid | English |
| ACROS | English |
| SigmaAldrich | English |
| ALFA | English |
| 1-Amino-2-naphthol-4-sulfonic acid Usage And Synthesis |
| Chemical Properties | solid |
| Uses | 1-Amino-2-naphthol-4-sulfonic acid can be used in determination of phosphate. |
| Uses | 4-Amino-3-hydroxy-1-naphthalenesulfonic acid is used as mordant dyes and acid dyes intermediate. |
| Purification Methods | Purify it by warming 15g of the acid, 150g of NaHSO3 and 5g of Na2SO3(anhydrous) with 1L of water to ca 90o, shaking until most of the solid had dissolved, then filtering hot. The precipitate obtained by adding 10mL of conc HCl to the cooled filtrate is collected, washed with 95% EtOH until the washings are colourless, and is dried under vacuum over CaCl2. It is stored in a dark-coloured bottle, in the cold [Chanley et al. J Am Chem Soc 74 4347 1952]. [Beilstein 14 IV 2825.] |
| 1-Amino-2-naphthol-4-sulfonic acid Preparation Products And Raw materials |
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