1-Amino-7-naphthol
- CAS NO.：118-46-7
- Empirical Formula: C10H9NO
- Molecular Weight: 159.18
- MDL number: MFCD00004031
- EINECS: 204-252-4
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-12-18 14:15:32
What is 1-Amino-7-naphthol?
Chemical properties
grey to grey-brown granular powder
The Uses of 1-Amino-7-naphthol
Sulfonation gives 1-amino-7-hydroxynaphthalene-4-sulfonic acid. The N-acetyl derivative is an important coupling component for after-chrome and metal-complex dyes, e.g., C.I. Mordant Black 38 and C.I. Acid Black 60.
What are the applications of Application
8-Amino-2-naphthol is a chiral organocatalyst
Production Methods
The sodium salt of 1-aminonaphthalene-7-sulfonic acid is added to 80 % potassium hydroxide at 210℃, and the reaction is completed by heating for 6 h at 230℃. After dilution and careful acidification with hydrochloric acid, the acid solution is screened to remove impurities and neutralized to precipitate 159 in 80 % yield (mp 207℃).
Properties of 1-Amino-7-naphthol
| Melting point: | 206-210 °C(lit.) |
| Boiling point: | 284.68°C (rough estimate) |
| Density | 1.1202 (rough estimate) |
| refractive index | 1.6070 (estimate) |
| solubility | soluble in Methanol |
| form | Powder or Crystals |
| pka | pK1: 4.20(+1) (25°C) |
| color | Gray to brown |
| Water Solubility | slightly soluble |
| Sensitive | Light Sensitive |
| CAS DataBase Reference | 118-46-7(CAS DataBase Reference) |
| EPA Substance Registry System | 2-Naphthalenol, 8-amino- (118-46-7) |
Safety information for 1-Amino-7-naphthol
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P280:Wear protective gloves/protective clothing/eye protection/face protection. P304+P340:IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P405:Store locked up. |
Computed Descriptors for 1-Amino-7-naphthol
1-Amino-7-naphthol manufacturer
Anami Organics
1Y
Phone:+91-9825113634
Whatsapp: +91-9825113634
product: 118-46-7 8-Amino-2-naphthol 98%
Shreyaa Medilife Private Limited
1Y
Phone:+919879513108
Whatsapp: +91-9879513108
product: 118-46-7 98%
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