1-AMINO-8-NAPHTHOL-4-SULFONIC ACID
- CAS NO.：83-64-7
- Empirical Formula: C10H9NO4S
- Molecular Weight: 239.25
- MDL number: MFCD00003992
- EINECS: 201-491-6
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-28 00:10:19
What is 1-AMINO-8-NAPHTHOL-4-SULFONIC ACID?
Chemical properties
GREY POWDER. 1-Amino-8-hydroxynaphthalene-4-sulfonic acid [83-64-7]. (4-amino-5-hydroxynaphthalene-1-sulfonic acid), S acid, C10H9NO4S, Mr 239.2, is only sparingly soluble in hot water. Reaction with bisulfite gives 4,5-dihydroxynaphthalene-1-sulfonic acid. Diazo compounds couple under acid conditions a to the amino group and under alkaline conditions a to the hydroxy group; bisazo derivatives can be obtained.
The Uses of 1-AMINO-8-NAPHTHOL-4-SULFONIC ACID
1-Amino-8-naphthol-4-sulfonic Acid is used in the synthesis of dye compounds.
The Uses of 1-AMINO-8-NAPHTHOL-4-SULFONIC ACID
Azo dye intermediate.
The Uses of 1-AMINO-8-NAPHTHOL-4-SULFONIC ACID
The S acid and its acetyl derivative are used as azo coupling components in e.g., C.I. Mordant Green 14, C.I. Mordant Blue 7, and C.I. Direct Green 39.
What are the applications of Application
1-Amino-8-naphthol-4-sulfonic Acid is used in the synthesis of dye compounds
Properties of 1-AMINO-8-NAPHTHOL-4-SULFONIC ACID
| Density | 1.4338 (rough estimate) |
| refractive index | 1.6500 (estimate) |
| storage temp. | -20°C Freezer, Under inert atmosphere |
| solubility | DMSO (Slightly), Methanol (Slightly) |
| form | Solid |
| color | Dark Brown |
| CAS DataBase Reference | 83-64-7(CAS DataBase Reference) |
| EPA Substance Registry System | 1-Naphthalenesulfonic acid, 4-amino-5-hydroxy- (83-64-7) |
Safety information for 1-AMINO-8-NAPHTHOL-4-SULFONIC ACID
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation |
| Precautionary Statement Codes |
P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P280:Wear protective gloves/protective clothing/eye protection/face protection. |
Computed Descriptors for 1-AMINO-8-NAPHTHOL-4-SULFONIC ACID
1-AMINO-8-NAPHTHOL-4-SULFONIC ACID manufacturer
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