1-Naphthoic acid
Synonym(s):1-Naphthalenecarboxylic acid
- CAS NO.：86-55-5
- Empirical Formula: C11H8O2
- Molecular Weight: 172.18
- MDL number: MFCD00004007
- EINECS: 201-681-9
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-08-21 22:41:43
What is 1-Naphthoic acid?
Chemical properties
Off-white to beige powder
The Uses of 1-Naphthoic acid
1-Naphthoic acid is used as an intermediate for the synthesis of pharmaceuticals, photochemicals, plant growth hormones, dyes and other organic compounds.
Definition
ChEBI: 1-naphthoic acid is a naphthoic acid carrying a carboxy group at position 1. It has a role as a fungal xenobiotic metabolite and a bacterial xenobiotic metabolite. It is a conjugate acid of a 1-naphthoate.
Synthesis Reference(s)
Organic Syntheses, Coll. Vol. 2, p. 425, 1943
Tetrahedron Letters, 22, p. 1013, 1981 DOI: 10.1016/S0040-4039(01)82853-7
Purification Methods
Crystallise the acid from toluene (3mL/g) (charcoal), pet ether (b 80-100o), or aqueous 50% EtOH. The amide has m 202o (from EtOH). [Beilstein 9 IV 2402.]
Properties of 1-Naphthoic acid
| Melting point: | 157-160 °C (lit.) |
| Boiling point: | 300 °C (lit.) |
| Density | 1.398 |
| refractive index | 1.4600 (estimate) |
| Flash point: | 195°C |
| storage temp. | Sealed in dry,Room Temperature |
| solubility | Solubility Slightly soluble in hot water; freely soluble in hot ethanol, ether |
| pka | 3.7(at 25℃) |
| form | Powder |
| color | Slightly yellow to brown |
| Specific Gravity | 1.398 |
| PH Range | Non& uorescence (2.5) to blue & uorescence (3.5) |
| Water Solubility | Freely soluble in hot alcohol and ether. Slightly soluble in hot water. |
| λmax | 293nm |
| Merck | 14,6381 |
| BRN | 1908896 |
| Stability: | Stable. Incompatible with strong bases, strong oxidizing agents. |
| Major Application | Photoresists, recording materials, waveguides, battery, ink, rubber, plastic films, agriculture, cosmetics, Sunscreen, method for preserving food, drugs, biosensors |
| CAS DataBase Reference | 86-55-5(CAS DataBase Reference) |
| NIST Chemistry Reference | 1-Naphthalenecarboxylic acid(86-55-5) |
| EPA Substance Registry System | 1-Naphthalenecarboxylic acid (86-55-5) |
Safety information for 1-Naphthoic acid
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H303:Acute toxicity,oral 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-Naphthoic acid
| InChIKey | LNETULKMXZVUST-UHFFFAOYSA-N |
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