4-AMINO-3-HYDROXY-1-NAPHTHALENESULFONIC ACID
4-Amino-3-hydroxy-1-naphthalenesulfonic acid
CAS: 116-63-2
Molecular Formula: C10H9NO4S
4-AMINO-3-HYDROXY-1-NAPHTHALENESULFONIC ACID - Names and Identifiers
| Name | 4-Amino-3-hydroxy-1-naphthalenesulfonic acid |
| Synonyms | 1-Amino-2-naphthol-4-sulfonic acid 4-Amino-3-hydroxynaphthalene-1-sulfonic acid 4-Amino-3-hydroxy-1-naphthalenesulfonic acid |
| CAS | 116-63-2 |
| EINECS | 204-147-3 |
| InChI | InChI=1/C10H9NO4S/c11-10-7-4-2-1-3-6(7)9(5-8(10)12)16(13,14)15/h1-5,12H,11H2,(H,13,14,15)/p-1 |
4-AMINO-3-HYDROXY-1-NAPHTHALENESULFONIC ACID - Physico-chemical Properties
| Molecular Formula | C10H9NO4S |
| Molar Mass | 239.25 |
| Density | 1.4338 (rough estimate) |
| Melting Point | 295℃ |
| Boling Point | 466℃ |
| Water Solubility | insoluble |
| Appearance | Form Powder, color White to light pink |
| pKa | -0.49±0.40(Predicted) |
| Storage Condition | Store below +30°C. |
| Stability | Stable. Incompatible with strong bases, acid chlorides, acid anhydrides, strong oxidizing agents. |
| Sensitive | Sensitive to light |
| Refractive Index | 1.6500 (estimate) |
| MDL | MFCD00004019 |
| Physical and Chemical Properties | properties white or gray needle-like crystals, usually containing semi-molecular crystal water, become rose-red in the air, especially in the wet. solubility insoluble in cold water, ethanol, ether, benzene, soluble in hot water, hot sodium bisulfite and alkali solution |
| Use | For the manufacture of azo dyes |
4-AMINO-3-HYDROXY-1-NAPHTHALENESULFONIC ACID - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S37/39 - Wear suitable gloves and eye/face protection |
| UN IDs | UN 2585 |
| WGK Germany | 3 |
| RTECS | QK1292000 |
| TSCA | Yes |
| HS Code | 29222100 |
| Hazard Class | IRRITANT |
| Packing Group | III |
4-AMINO-3-HYDROXY-1-NAPHTHALENESULFONIC ACID - Upstream Downstream Industry
4-AMINO-3-HYDROXY-1-NAPHTHALENESULFONIC ACID - Nature
Open Data Verified Data
white or gray needle-like crystals, often containing semi-molecular crystal water. Soluble in hot sodium bisulfite and alkali solution, insoluble in cold ethanol, ether, benzene, water-soluble. It turns pink in the air, even more so when it is wet. The alkali solution rapidly oxidizes to Brown in air, and the neutral solution shows a slight blue fluorescence.
Last Update：2024-01-02 23:10:35
4-AMINO-3-HYDROXY-1-NAPHTHALENESULFONIC ACID - Preparation Method
Open Data Verified Data
with 2 Naphthol as raw material, prepared by alkali fusion, nitrification and sulfonation.
Last Update：2022-01-01 09:27:04
4-AMINO-3-HYDROXY-1-NAPHTHALENESULFONIC ACID - Introduction
This product is an acid mordant dye and an acid complex dye intermediate. Used to make acid complex pink B; Acid medium black R and acid complex salt GGN; Acid medium jujube BN, etc. It is also used for colorimetric determination of phosphate and calcium salts. It is also used for the determination of 1-amino-2-hydroxy-4-naphthalenesulfonic acid of phosphate.
Last Update：2022-10-16 17:12:24
4-AMINO-3-HYDROXY-1-NAPHTHALENESULFONIC ACID - Use
Open Data Verified Data
for Colorimetric Determination of phosphate and calcium salts. It is also an intermediate of acid medium dye and acid complex dye. For the manufacture of acid complex Peach Red BI acid medium black R and acid complex salt GGNl acid medium jujube BN, etc.
Last Update：2022-01-01 09:27:05
4-AMINO-3-HYDROXY-1-NAPHTHALENESULFONIC ACID - Safety
Open Data Verified Data
- toxic. Detailed toxicity was not reported. Good ventilation should be maintained at the production site, and the operator should wear protective equipment.
- It is packed in a wooden barrel lined with a plastic bag with a net weight of 40kg per barrel. Storage in the dark, dry warehouse, heat, moisture. According to the provisions of the storage and transportation of toxic chemicals.
Last Update：2022-01-01 10:56:26
Supplier List
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CAS: 116-63-2
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Email: sales@tnjchem.com
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Mobile: 0086 189 4982 3763
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CAS: 116-63-2
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Product Name: 1-Amino-2-naphthol-4-sulfonic acid Visit Supplier Webpage Request for quotationCAS: 116-63-2
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View History
Raw Materials for 4-AMINO-3-HYDROXY-1-NAPHTHALENESULFONIC ACID
Downstream Products for 4-AMINO-3-HYDROXY-1-NAPHTHALENESULFONIC ACID
1-Diazo-2-naphthol-4-sulfonic acid
Mordant Red 7
POTASSIUM 1,2-NAPHTHOQUINONE-4-SULFONIC ACID
Mordant Black 17
Acid violet 90
ACID BLUE 161, PURE
Mordant Red 7
POTASSIUM 1,2-NAPHTHOQUINONE-4-SULFONIC ACID
Mordant Black 17
Acid violet 90
ACID BLUE 161, PURE