Product Introduction
| 2-Ethoxynaphthalene Basic information |
| Product Name: | 2-Ethoxynaphthalene |
| Synonyms: | ETHYL BETA-NAPTHYL ETHER;ETHOXYLATED BETA NAPHTHALENE;ETHYL 2-NAPHTHYL ETHER;ethyl 2-naphtyl ether;2-NAPHTHYL ETHYL ETHER;2-NAPHTHOL ETHYL ETHER;beta-Ethoxynaphthalene;b-Naphthol-athylather |
| CAS: | 93-18-5 |
| MF: | C12H12O |
| MW: | 172.22 |
| EINECS: | 202-226-7 |
| Product Categories: | Naphthalene derivatives;Aromatic Esters |
| Mol File: | 93-18-5.mol |
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| 2-Ethoxynaphthalene Chemical Properties |
| Melting point | 35-37 °C(lit.) |
| Boiling point | 282°C |
| density | 1.0640 |
| vapor pressure | 0.518Pa at 25℃ |
| refractive index | 1.5975 (estimate) |
| FEMA | 2768 | BETA-NAPHTHYL ETHYL ETHER |
| Fp | 134°C |
| solubility | alcohol: soluble |
| color | White to Almost white |
| Odor | at 10.00 % in dipropylene glycol. naphtha floral orange blossom powdery grape |
| Odor Type | naphthyl |
| Water Solubility | insoluble |
| Merck | 14,3752 |
| JECFA Number | 1258 |
| BRN | 2042397 |
| LogP | 3.747 at 25℃ |
| CAS DataBase Reference | 93-18-5(CAS DataBase Reference) |
| NIST Chemistry Reference | Naphthalene, 2-ethoxy-(93-18-5) |
| EPA Substance Registry System | Naphthalene, 2-ethoxy- (93-18-5) |
| Safety Information |
| Hazard Codes | Xi |
| Risk Statements | 38 |
| Safety Statements | 26-36-24/25 |
| WGK Germany | 2 |
| RTECS | QJ6900000 |
| TSCA | Yes |
| HS Code | 29093090 |
| MSDS Information |
| Provider | Language |
|---|---|
| 2-Ethoxynaphthalene | English |
| ACROS | English |
| SigmaAldrich | English |
| ALFA | English |
| 2-Ethoxynaphthalene Usage And Synthesis |
| Description | (β-Naphthyl ethyl ether has an odor suggestive of orange blossom with a faint, fruity undertone. It has a corresponding sweet taste suggestive of strawberry (on extreme dilution only). This substance may be prepared by esterification of P-naphthol with ethyl alcohol and sulfuric acid; from β-naphtholsodium and diethylsulfate in weak aqueous base; fromβ-naphtholsodium and ethyl bromide. |
| Chemical Properties | Ethyl 2-Naphthyl Ether forms white or light brown crystals (mp 37–38°C), with a mild, long-lasting, orange blossom fragrance. Soluble in 7 volumes of 95% ethanol and oily fragrances. Sweet orange blossom and grape notes at the very lightest stage, the aroma is more gentle and delicate, with a very long-lasting scent. |
| Uses | The fluorescence of 2-Ethoxynaphthalene has been shown to be weakly quenched by m-dimethlphthalate and methyl benzoate. Importantly, at increased concentration methyl benzoate enhances the fluorescence by increasing the polarity of the solvent . |
| Preparation | By esterification of β-naphthol with ethyl alcohol and sulfuric acid; from β-naphtholsodium and diethylsulfate in weak aqueous base; from β-naphtholsodium and ethyl bromide. |
| Definition | ChEBI: 2-Ethoxynaphthalene is a member of naphthalenes. |
| Taste threshold values | Taste characteristics at 4 ppm: powdery, floral, soapy and heavy with a berry and grape nuance. |
| General Description | Nerolin bromelia is an alkyl ether of 2-naphthol, which is generally used as a perfume and flavoring compound. |
| Flammability and Explosibility | Not classified |
| Purification Methods | Crystallise it from pet ether or EtOH (m 37-38o). Dry it in vacuo, or distil it in a vacuum. The picrate has m 104.5o (from EtOH or CHCl3). [Beilstein 6 H 606, 6 II 578, 6 III 2972, 6 IV 4257.] |
| 2-Ethoxynaphthalene Preparation Products And Raw materials |
| Raw materials | Diethyl sulfate-->2-Naphthol-->Ethanol-->Sulfuric acid |
| Preparation Products | 2-Ethoxynaphthalene-1-carbonyl chloride-->2-ETHOXY-1-NAPHTHOIC ACID-->2-ETHOXY-1-NITRONAPHTHALENE-->1-(2-ethoxynaphthalen-1-yl)ethanone |
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