ChemicalBook > CAS DataBase List > 2-Methoxynaphthalene

2-Methoxynaphthalene

Product Name
2-Methoxynaphthalene
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
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2-Methoxynaphthalene Property

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. 
Sealed in dry,Room Temperature
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)
NIST Chemistry Reference
Naphthalene, 2-methoxy-(93-04-9)
EPA Substance Registry System
Naphthalene, 2-methoxy- (93-04-9)
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Safety

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
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H319Causes serious eye irritation

H411Toxic to aquatic life with long lasting effects

Precautionary statements

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
148245
Product name
2-Methoxynaphthalene
Purity
99%
Packaging
100g
Price
$37
Updated
2021/03/22
Sigma-Aldrich
Product number
W470411
Product name
2-Methoxynaphthalene
Purity
≥99%, FG
Packaging
SAMPLE-K
Price
$50
Updated
2021/03/22
Sigma-Aldrich
Product number
W470411
Product name
2-Methoxynaphthalene
Purity
≥99%, FG
Packaging
100G-K
Price
$100
Updated
2021/03/22
Sigma-Aldrich
Product number
07499
Product name
2-Methoxynaphthalene
Purity
pharmaceutical impurity standard
Packaging
50mg
Price
$131
Updated
2021/03/22
Sigma-Aldrich
Product number
W470411
Product name
2-Methoxynaphthalene
Purity
≥99%, FG
Packaging
1KG-K
Price
$250
Updated
2021/03/22
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2-Methoxynaphthalene Chemical Properties,Usage,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:

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.]

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View Lastest Price from 2-Methoxynaphthalene manufacturers

Hebei Crovell Biotech Co Ltd
Product
2-Methoxynaphthalene 93-04-9
Price
US $10.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
10 ton
Release date
2021-06-28
Zhuozhou Wenxi import and Export Co., Ltd
Product
2-Methoxynaphthalene 93-04-9
Price
US $15.00-10.00/KG
Min. Order
1KG
Purity
99%+ HPLC
Supply Ability
Monthly supply of 1 ton
Release date
2021-07-11
Zhuozhou Wenxi import and Export Co., Ltd
Product
2-Methoxynaphthalene 93-04-9
Price
US $15.00-10.00/KG
Min. Order
1KG
Purity
99%+ HPLC
Supply Ability
Monthly supply of 1 ton
Release date
2021-07-09

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