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2-Methoxynaphthalene

2-Methoxynaphthalene
2-Methoxynaphthalene structure
CAS No.
93-04-9
Chemical Name:
2-Methoxynaphthalene
Synonyms
YARA;NSC 4171;Jara jara;Yura yara;YARA YARA;nerolin(old);Nerolin (old);NAPROXEN IMP M;neroline “old”;NEROLIN YARA YARA
CBNumber:
CB3483471
Molecular Formula:
C11H10O
Formula Weight:
158.2
MOL File:
93-04-9.mol

2-Methoxynaphthalene Properties

Melting point:
70-73 °C(lit.)
Boiling point:
274 °C(lit.)
Density 
1.064 g/mL at 25 °C(lit.)
FEMA 
4704 | BETA-NAPHTHYL METHYL ETHER
refractive index 
1.5440 (estimate)
Flash point:
272-274°C
storage temp. 
Store below +30°C.
solubility 
H2O: soluble (completely)
form 
Crystalline Solid
color 
White to yellow-brown
Water Solubility 
INSOLUBLE
JECFA Number
1257
Merck 
14,5997
BRN 
1859408
Stability:
Stable. Combustible. Incompatible with strong oxidizing agents.
InChIKey
LUZDYPLAQQGJEA-UHFFFAOYSA-N
CAS DataBase Reference
93-04-9(CAS DataBase Reference)
Substances Added to Food (formerly EAFUS)
BETA-NAPHTHYL METHYL ETHER
EWG's Food Scores
1
FDA UNII
VX2T1Z50C4
NIST Chemistry Reference
Naphthalene, 2-methoxy-(93-04-9)
EPA Substance Registry System
Naphthalene, 2-methoxy- (93-04-9)
SAFETY
  • Risk and Safety Statements
Symbol(GHS) 
GHS07,GHS09
Signal word  Warning
Hazard statements  H319-H411
Precautionary statements  P305+P351+P338
Safety Statements  22-24/25
RIDADR  UN 3077 9 / PGIII
WGK Germany  2
RTECS  QJ9468750
TSCA  Yes
HS Code  29093090
Toxicity LD50 oral in rat: > 5gm/kg
NFPA 704
1 0

2-Methoxynaphthalene price More Price(9)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 148245 2-Methoxynaphthalene 99% 93-04-9 100g $37 2021-03-22 Buy
Sigma-Aldrich W470411 2-Methoxynaphthalene ≥99%, FG SAMPLE-K $50 2021-03-22 Buy
Sigma-Aldrich W470411 2-Methoxynaphthalene ≥99%, FG 100G-K $100 2021-03-22 Buy
Sigma-Aldrich 07499 2-Methoxynaphthalene pharmaceutical impurity standard 93-04-9 50mg $131 2021-03-22 Buy
Sigma-Aldrich W470411 2-Methoxynaphthalene ≥99%, FG 1KG-K $250 2021-03-22 Buy

2-Methoxynaphthalene Chemical Properties,Uses,Production

Description

β-Naphthyl methyl ether has an intensely sweet, floral odor suggestive of orange blossoms. It is free from naphthol by-odor. It has a sweet, strawberry taste. This may be prepared from potassium β-naphthol and methyl chloride at 300°C; by methylation of β-naphthol with dimethyl sulfate or by direct esterification with methyl alcohol.

Chemical Properties

β-Naphthyl methyl ether has an intensely sweet, floral odor suggestive of orange blossoms; free from naphthol by-odor. It has a sweet, strawberry taste

Chemical Properties

white powder

Chemical Properties

Methyl 2-Naphthyl Ether forms white crystals (mp 73–74°C) with an intense orange blossom odor.

Uses

2-Methoxynaphthalene is an Impurity of the non-steroidal anti-inflammatory Naproxen (N377525).

Preparation

From postassium β-naphthol and methyl chloride at 300°C; by methylation of β-naphthlol with dimethyl sulfate or by direct esterification with methyl alcohol

Synthesis Reference(s)

Tetrahedron, 48, p. 6439, 1992 DOI: 10.1016/S0040-4020(01)88233-8
Tetrahedron Letters, 22, p. 3463, 1981 DOI: 10.1016/S0040-4039(01)81932-8

Chemical Synthesis

Preparation of 2-Methoxynaphthalene from 2-naphthol.
Principle: Phenols can be methylated to give methyl ethers. Methylation can be done either by using diazomethane or dimethyl sulphate in alkaline medium.
Reaction:
Preparation of 2-Methoxynaphthalene from 2-naphthol
Procedure: Take 0.5 g 2-naphthol and 0.2 g NaOH in 5 ml distilled water in a beaker (25 ml). Heat on a wire gauze to obtain a clear solution. Cool the solution (10-15°C) and then add 0.35 ml dimethyl sulphate drop wise. After the addition is over, warm the mixture for one hour at 70-80°C and then cool. Filter the product and wash it with 10% sodium hydroxide solution and then with water. Dry the product, record the practical yield and re-crystallize it.
Re-crystallization: Dissolve the crude product in minimum amount of ethyl alcohol in a beaker by heating on a water bath. Filter the hot solution and cool the filtrate. Filter the white crystals of the product. Dry and record the melting point and TLC (using toluene as solvent).

Purification Methods

Fractionally distil the ether under vacuum. Crystallise it from absolute EtOH, aqueous EtOH, *C6H6, pet ether or n-heptane, and dry it under vacuum in an Abderhalden pistol or distil it in vacuo. The picrate has m 118o (from EtOH or CHCl3). [Kikuchi et al. J Phys Chem 91 574 1987, Beilstein 6 III 2969, 6 IV 4257.]

2-Methoxynaphthalene Preparation Products And Raw materials

Raw materials

Preparation Products


2-Methoxynaphthalene Suppliers

Global( 281)Suppliers
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View Lastest Price from 2-Methoxynaphthalene manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2020-11-30 High Quality 2-methoxynaphthalene
93-04-9
US $10.00 / g 10g 99% 500T Wuhan Bosman Medicine Tech Co.,LTD
2020-01-17 2-Methoxynaphthalene
93-04-9
US $0.00-0.00 / 公斤 100G 99.0%+ 100 tons Shaanxi Dideu Medichem Co. Ltd
2019-07-11 2-Methoxynaphthalene
93-04-9
US $1.00 / KG 1KG 99% 1ton career henan chemical co

2-Methoxynaphthalene Spectrum


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