1-Hydroxy-2-naphthoic acid
1-Hydroxy-2-naphthoic acid
CAS: 86-48-6
Molecular Formula: C11H8O3
1-Hydroxy-2-naphthoic acid - Names and Identifiers
| Name | 1-Hydroxy-2-naphthoic acid |
| Synonyms | RARECHEM AL BE 0359 LABOTEST-BB LT00452757 1-Hydroxy-2-phthoic acid 1-Hydroxy-2-naphthoic acid 1-HYDROXY-2-NAPHTHOIC ACID ALPHA-HYDROXYNAPHTHOIC ACID 1-NAPHTHOL-2-CARBOXYLIC ACID 1-Naphthol-2-carboxylic acid 1-hydroxynaphthalene-2-carboxylate 1-HYDROXY-NAPHTHALENE-2-CARBONIC ACID 1-hydroxynaphthalene-2-carboxylic acid 2-Naphthalenecarboxylic acid, 1-hydroxy- Salmeterol Hydroxynaphthoic Acid Impurity (USP) N-{[5-(dimethylamino)naphthalen-1-yl]sulfonyl}-L-alpha-glutamyl-N-{(3S)-1-chloro-6-[(diaminomethylidene)amino]-2-oxohexan-3-yl}glycinamide |
| CAS | 86-48-6 |
| EINECS | 201-674-0 |
| InChI | InChI=1/C11H8O3/c12-10-8-4-2-1-3-7(8)5-6-9(10)11(13)14/h1-6,12H,(H,13,14)/p-1 |
| InChIKey | SJJCQDRGABAVBB-UHFFFAOYSA-N |
1-Hydroxy-2-naphthoic acid - Physico-chemical Properties
| Molecular Formula | C11H8O3 |
| Molar Mass | 188.18 |
| Density | 1.2100 (rough estimate) |
| Melting Point | 195-200 °C (dec.) (lit.) |
| Boling Point | 283.17°C (rough estimate) |
| Flash Point | 150°C |
| Water Solubility | SOLUBLE IN HOT WATER |
| Solubility | Soluble in ethanol, ether, benzene, chloroform and alkaline solution, slightly soluble in hot water, almost insoluble in cold water. |
| Vapor Presure | 4.68E-06mmHg at 25°C |
| Appearance | White crystal |
| Color | White to slightly pink to tan or |
| Merck | 14,4834 |
| BRN | 974438 |
| pKa | 3.02±0.30(Predicted) |
| Storage Condition | Sealed in dry,Room Temperature |
| Refractive Index | 1.6310 (estimate) |
| MDL | MFCD00003960 |
| Physical and Chemical Properties | White to reddish crystal. melting point 191~192 ℃ soluble in ethanol, benzene, ether, chloroform and alkaline solution, almost insoluble in water, slightly soluble in hot water. |
| Use | Used as color former, battery additive |
1-Hydroxy-2-naphthoic acid - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - 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. S36 - Wear suitable protective clothing. S37/39 - Wear suitable gloves and eye/face protection S37 - Wear suitable gloves. |
| WGK Germany | 3 |
| TSCA | Yes |
| HS Code | 29182910 |
1-Hydroxy-2-naphthoic acid - Upstream Downstream Industry
| Raw Materials | 1-Naphthol |
1-Hydroxy-2-naphthoic acid - Nature
Open Data Verified Data
White to reddish crystals. The melting point was 191-192 °c. Soluble in ethanol, benzene, ether, chloroform and alkaline solution, almost insoluble in water, slightly soluble in hot water.
Last Update：2025-06-10 22:55:16
1-Hydroxy-2-naphthoic acid - Preparation Method
Open Data Verified Data
using 1-Naphthol as raw material, sodium salt is first prepared, and then carboxylation reaction with carbon dioxide to prepare sodium salt of naphthyl carbonate, and then molecular rearrangement to obtain sodium salt of 1-hydroxy-2-naphthoic acid, then acidified with hydrochloric acid to obtain the finished product.
Last Update：2022-01-01 10:43:51
1-Hydroxy-2-naphthoic acid - Application
Open Data Verified Data
intermediates for producing long-lived batteries and color couplers for color films are also intermediates for some acid medium dyes, such as blue and green.
Last Update：2025-08-19 16:24:40
1-Hydroxy-2-naphthoic acid - Safety
Open Data Verified Data
- This product is toxic. Its physiological effects are similar to those of hydroxycarboxylic acids. The solvent chlorobenzene used in the production of this product is narcotic and can stimulate the skin. Hydrochloric acid is a volatile gas, which stimulates the skin and mucous membranes and easily causes pharyngitis. Labor protection should be strengthened in the production process, and operators should wear labor protection equipment.
- packaged in iron drum, 50kg per barrel. Should be stored in a dry, ventilated place, to avoid sun exposure, to prevent heat, moisture.
Last Update：2025-06-10 22:55:16
1-Hydroxy-2-naphthoic acid - Reference Information
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| biological activity | 1-Hydroxy-2-naphthoic acid is an atypical biomass metabolite generated by microbial degradation of phenanthrene by microorganisms. |
| Use | used as couplers, battery additives, dye Intermediates, etc. This product is an intermediate for dyes and color couplers, and is also used in other organic synthesis and as a battery additive. used as color former and battery additive |
| production method | 1-naphthol as a raw material, in the solvent of chlorobenzene, 1-naphthol sodium salt and carbon dioxide carboxylation reaction, prepared by naphthyl carbonate sodium salt, and then undergo molecular rearrangement to obtain 1-hydroxy-2-naphthoic acid sodium salt, then, 1-hydroxy-2-naphthoic acid was obtained by acidification with hydrochloric acid. The first grade industrial product is white powder, the content is more than or equal to 98%, the melting point is more than 186. Raw material consumption quota: 1-naphthol 1160kg/t, liquid alkali (30%)940kg/t, carbon dioxide 500kg/t. |
Last Update：2024-04-09 20:49:11
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Raw Materials for 1-Hydroxy-2-naphthoic acid