1-Amino-2-naphthol hydrochloride
- CAS NO.：1198-27-2
- Empirical Formula: C10H10ClNO
- Molecular Weight: 195.65
- MDL number: MFCD00012561
- EINECS: 214-830-8
- SAFETY DATA SHEET (SDS)
- Update Date: 2023-04-23 13:52:06
What is 1-Amino-2-naphthol hydrochloride?
Chemical properties
lilac to light grey fluffy powder
The Uses of 1-Amino-2-naphthol hydrochloride
1-Amino-2-naphthol hydrochloride was used in a study on degradation of the azo dye Acid Orange 7 in batch anaerobic unstirred assay.
General Description
1-Amino-2-naphthol undergoes condensation with methylene-substituted azaheterocycles in presence of an oxidizing agent to yield photochromic spirooxazines.
Purification Methods
Crystallise the salt from the minimum volume of hot water containing a few drops of stannous chloride in an equal weight of hydrochloric acid (to reduce atmospheric oxidation). Filter the solution and add half its volume of conc HCl and set aside. The salt crystallises almost quantitatively. Dry it in a vacuum in the dark (m 260o). The salt is more stable than the free base which has m 150o (darkening at 130o) and its O-methyl ether has m 49o and b 159-159o/9mm. [Desai et al. J Chem Soc 324 1938, Beilstein 13 H 666, 13 I 268, 13 II 408, 13 III 1875, 13 IV 2080.]
Properties of 1-Amino-2-naphthol hydrochloride
| Melting point: | 250 °C (dec.)(lit.) |
| storage temp. | Hygroscopic, Refrigerator, under inert atmosphere |
| solubility | DMSO (Slightly), Methanol (Slightly) |
| form | Solid |
| color | Purple |
| Water Solubility | Soluble |
| Sensitive | Light Sensitive |
| BRN | 3699817 |
| CAS DataBase Reference | 1198-27-2(CAS DataBase Reference) |
| EPA Substance Registry System | 2-Naphthalenol, 1-amino-, hydrochloride (1198-27-2) |
Safety information for 1-Amino-2-naphthol hydrochloride
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07  Health Hazard GHS08 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation H351:Carcinogenicity |
| Precautionary Statement Codes |
P280:Wear protective gloves/protective clothing/eye protection/face protection. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P308+P313:IF exposed or concerned: Get medical advice/attention. |
Computed Descriptors for 1-Amino-2-naphthol hydrochloride
| InChIKey | DEKREBCFNLUULC-UHFFFAOYSA-N |
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