ETHYL BETA-NAPTHYL ETHER
2-Ethoxynaphthalene
CAS: 93-18-5
Molecular Formula: C12H12O
ETHYL BETA-NAPTHYL ETHER - Names and Identifiers
ETHYL BETA-NAPTHYL ETHER - Physico-chemical Properties
| Molecular Formula | C12H12O |
| Molar Mass | 172.22 |
| Density | 1.0640 |
| Melting Point | 35-37°C(lit.) |
| Boling Point | 282°C |
| Flash Point | 134°C |
| JECFA Number | 1258 |
| Water Solubility | insoluble |
| Solubility | alcohol: soluble |
| Vapor Presure | 0.518Pa at 25℃ |
| Appearance | neat |
| Color | White to Almost white |
| Merck | 14,3752 |
| BRN | 2042397 |
| Refractive Index | 1.5975 (estimate) |
| Physical and Chemical Properties | Appearance: white crystals Melting Point: 37 Boiling Point: 282 |
ETHYL BETA-NAPTHYL ETHER - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 38 - Irritating to the 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. S24/25 - Avoid contact with skin and eyes. |
| WGK Germany | 2 |
| RTECS | QJ6900000 |
| TSCA | Yes |
| HS Code | 29093090 |
ETHYL BETA-NAPTHYL ETHER - Nature
Open Data Verified Data
White Crystal, relative density 1. 0640, melting point 37.5 ℃, boiling point 282 ℃, refractive index 1. 5932. Insoluble in water, soluble in alcohol, ether, chloroform, carbon disulfide, petroleum ether, toluene and other organic solvents.
Last Update：2024-01-02 23:10:35
ETHYL BETA-NAPTHYL ETHER - Preparation Method
Open Data Verified Data
prepared by etherification of 2-naphthol with ethanol in the presence of sulfuric acid. Add ethanol into the reaction kettle, add 2-naphthol to dissolve it, add concentrated sulfuric acid Dropwise, heat reflux lOh, add the reaction solution to 5% sodium hydroxide solution, and immediately precipitate off-white crystals, the filter cake was filtered with water to pH 7.5. The crude product is dried and refined by vacuum distillation, and the fraction of 138~140 ℃(1. 6kPa) is collected as the product.
Last Update：2022-01-01 10:40:04
ETHYL BETA-NAPTHYL ETHER - Use
Open Data Verified Data
It is used in medicine to produce sodium ethoxynaphthylpenicillin.
Last Update：2022-01-01 10:40:03
ETHYL BETA-NAPTHYL ETHER - Reference Information
| FEMA | 2768 | BETA-NAPHTHYL ETHYL ETHER |
| LogP | 3.747 at 25℃ |
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| toxicity | GRAS(FEMA). Ld503.1 LG/kg (rat, oral). |
| usage limit | FEMA(mg/kg): Soft drink 0.65; Cold drink 0.74; Candy 2.8; Baked product 3.6; gel product, pudding, 0.12. |
| Use | used for soap of jasmine, orange flower, Gulong, etc. It can be used as a sweetening and perfuming agent, and is often used with methyl naphthalene methyl ketone, methyl anthranilate, orange leaf oil and the like. With linalool and its esters, terpineol and its esters, isobutyl phenylacetate, a small amount of undecylolactone and the like can be well coordinated and mixed. For example, the effect is better when it is used with a fragrance with a slightly higher boiling point such as amyl cinnamaldehyde. This product has the fragrance of orange flower and locust flower, accompanied by sweet taste and strawberry, pineapple-like aroma, commonly used as soap flavor (orange flower fragrance), cheap cosmetic flavor, strawberry flavor and other blended spices. It is used in medicine as a raw material for ethoxynaphthylpenicillin sodium. used for mixing detergent and soap flavor |
| production method | results from the etherification of 2-naphthol with ethanol in the presence of sulfuric acid. The 2-naphthol was dissolved in anhydrous ethanol, concentrated sulfuric acid was added dropwise, and heated to reflux for 10H. The reaction solution was poured into 5% sodium hydroxide solution to precipitate off-white crystals, which were filtered, washed with cold water until pH = 7.5, and dried to obtain 2-ethoxynaphthalene. The yield was 96%. The crude product may be purified by distillation under reduced pressure, and a 138-140 ° C. (1.6kPa) fraction is collected. It can also be prepared by reacting diethyl sulfate or haloethane with the sodium salt of 2-naphthol. |
Last Update：2024-04-09 02:00:12
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Product Name: 2-Ethoxynaphthalene；2-Naphthol ethyl ether; Ethyl β-naphtholate Request for quotationCAS: 93-18-5
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Product Name: 2-Ethoxynaphthalene Request for quotationCAS: 93-18-5
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