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2-Methoxynaphthalene

HCID 7119
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Basic informationOverviewNames & identifiersPropertiesSafety & regulationChemistry & industryRelated reactionsCompound notes
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Basic information

CAS
93-04-9
Standard SMILES
COc1ccc2ccccc2c1
InChIKey
LUZDYPLAQQGJEA-UHFFFAOYSA-N
Molecular formula
C11H10O
Average molar mass
158.2 g/mol
Monoisotopic mass
158.07316494

Overview

2-Methoxynaphthalene is a member of naphthalenes.

Names & identifiers

Preferred name
2-Methoxynaphthalene
IUPAC
2-methoxynaphthalene
English name
2-Methoxynaphthalene
Molecular formula
C11H10O
Molecular weight
158.2

Names & synonyms

2-METHOXYNAPHTHALENE93-04-9Naphthalene, 2-methoxy-NerolinMethyl 2-naphthyl ether2-Naphthol methyl etherbeta-Naphthyl methyl etherbeta-MethoxynaphthaleneNerolin (old)beta-Naphthol methyl etherDTXSID7044392VX2T1Z50C4
Show more names
NEROLIN YARA YARANEROLINE YARA YARANaproxen Impurity MYARAJara jara2-MethoxynaphthaLB-NAPHTHOL METHYL ETHERB-NAPHTHYL METHYL ETHER
NSC-4171DTXCID5024392FEMA NO. 4704RefChem:87936202-213-6Yara yaraYara-YaraYura yara

Database identifiers

CAS
93-04-9
PubChem CID
7119
DTXSID
DTXSID7044392
ChEMBL
CHEMBL195857
ChEBI
CHEBI:177835
UNII
VX2T1Z50C4
EC Number
202-213-6
Nikkaji
J4.667A

Properties

Computed structural properties

XLogP
3.5
Topological polar surface area
9.2 Ų
Hydrogen bond donors
0
Hydrogen bond acceptors
1
Rotatable bonds
1
Heavy atoms
12
Formal charge
0
Complexity
144

Experimental & physicochemical properties

Chemical ClassesOther Classes -> Naphthalenes
PolymersPolycyclic aromatic compound
SpringerMaterials Properties13C nuclear magnetic resonance spectrum
FragrancesFragrance Ingredient (beta-Naphthyl methyl ether) -> IFRA transparency List
LogP · 2 items

3.47

3.47

Food AdditivesFLAVORING AGENT OR ADJUVANT -> FDA Substance added to food
Flavoring AgentsEU Flavoring substances
Solubility · 2 items

Insoluble in water, miscible in oils

soluble (in ethanol)

Boiling Point274.00 °C. @ 760.00 mm Hg
Melting Point72 °C

Safety & regulation

Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.

GHS classification

GHS Classification · 4 items

This chemical does not meet GHS hazard criteria for 78.2% (1504 of 1923) of all reports.

H411 (18.5%): Toxic to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]

P273, P391, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 1923 reports by companies from 15 notifications to the ECHA C&L Inventory.

Hazard information

Regulatory Information · 5 items

Chemical: Naphthalene, 2-methoxy-

Regulation (EC) No 1831/2003 (amended)

Naphthalene, 2-methoxy- is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Naphthalene, 2-methoxy- are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)

Status: Active Update: 31-03-2023 https://echa.europa.eu/registration-dossier/-/registered-dossier/5694

2-Methoxynaphthalene: Does not have an individual approval but may be used under an appropriate group standard

Hazards SummarySafe when used as a flavoring agent in food; [JECFA] May cause irritation; [Alfa Aesar MSDS] See Naphthalene.
Hazard Classes and CategoriesAquatic Chronic 2 (18.5%)

Safety data

PPE
Eyeshields, Gloves, type N95 (US)
wgk
2
tsca
TSCA listed
rtecs
QJ9468750
ridadr
UN 3077 9 / PGIII

Chemistry & industry

Pharmacology

Cellular LocationsMembrane

Uses & manufacturing

UsesUsed as flavoring agent or adjuvant; [FDA]
U.S. Production2023: 2,500,000 - <4,000,000 lb
Consumer UsesOther
Industry UsesFragrance
Household ProductsInformation on 122 consumer products that contain Methyl 2-naphthyl ether in the following categories is provided:
Use Classification · 5 items

Fragrance Ingredients

Flavouring Agent -> FLAVOURING_AGENT -> JECFA Functional Classes

Flavoring Agents -> JECFA Flavorings Index

Flavouring Agent -> FLAVOURING_AGENT -> JECFA Functional Classes

Flavouring Agent -> FLAVOURING_AGENT -> JECFA Functional Classes

General Manufacturing Information · 2 items

Plastics Material and Resin Manufacturing

Naphthalene, 2-methoxy-: ACTIVE

Applications · 4 items

Descriptionβ-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.

Uses2-methoxynaphthalene acylation is used as a model reaction to study the catalytic benefits of delamination. It was also used to study the alkali-metal-mediated manganation (AMMMn) reactions.

Related reactions

366 records
New reaction record
HRID 6522 reaction equation
HRID 6522As reactantuspto-grants-1993_09
HRID 100855 reaction equation
HRID 100855As reactantTraining data from https://doi.org/10.1039/C8SC04228D (2/10)
HRID 113628 reaction equation
HRID 113628As reactantTraining data from https://doi.org/10.1039/C8SC04228D (2/10)
HRID 116582 reaction equation
HRID 116582As reactantTraining data from https://doi.org/10.1039/C8SC04228D (2/10)
HRID 258445 reaction equation
HRID 258445As reactantuspto-grants-1993_11
HRID 278963 reaction equation
HRID 278963As reactantuspto-grants-2002_03
HRID 344821 reaction equation
HRID 344821As productuspto-grants-1991_10
HRID 453921 reaction equation
HRID 453921As reactantuspto-grants-2013_07
Page 1 of 46

Compound notes

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Vapor Pressure
0.00823 [mmHg]
Physical Description · 4 items

Large Crystals; CBI; Dry Powder; Liquid; Dry Powder; Liquid

Solid; [Merck Index] White crystalline powder; [Alfa Aesar MSDS]

Solid

White shiny crystals, Intensely sweet, orange blossom Acacia-like aroma

Physicochemical properties

Melting point
70 · 70-73 °C (lit.)
Boiling point
274 °C · 274 °C (lit.)
Density
1.064 g/mL · 1.064 g/mL at 25 °C (lit.)
vapor pressure
1.097 Pa · 1.097Pa at 25℃
refractive index
1.544 · 1.5440 (estimate)
FEMA
4704 · 4704 | BETA-NAPHTHYL METHYL ETHER
FLAVIS Number
4.074 · 04.074 | 2-Methoxynaphthalene
Flash point
272 · 272-274°C
storage temp.
Sealed in dry,Room Temperature
solubility
2 O: · H2O: soluble (completely)
form
Crystalline Solid
pka
0 · 0[at 20 ℃]
color
White to yellow-brown
Odor
1 % · at 1.00 % in dipropylene glycol. sweet naphthyl floral orange blossom acacia neroli
Odor Type
naphthyl
biological source
synthetic
Water Solubility
INSOLUBLE
Merck
14 · 14,5997
JECFA Number
1257 · 1257
BRN
1859408 · 1859408
Stability
Stable. Combustible. Incompatible with strong oxidizing agents.
Cosmetics Ingredients Functions
PERFUMING
InChI
1S/C11H10O/c1-12-11-7-6-9-4-2-3-5-10(9)8-11/h2-8H,1H3
InChIKey
LUZDYPLAQQGJEA-UHFFFAOYSA-N
SMILES
COc1ccc2ccccc2c1
LogP
3.318 at · 3.318 at 25℃
CAS DataBase Reference
93 · 93-04-9(CAS DataBase Reference)
Substances Added to Food (formerly EAFUS)
BETA-NAPHTHYL METHYL ETHER
EWG's Food Scores
1 · 1
FDA UNII
2 T1Z50C4 · VX2T1Z50C4
NIST Chemistry Reference
2 · Naphthalene, 2-methoxy-(93-04-9)
EPA Substance Registry System
2 · Naphthalene, 2-methoxy- (93-04-9)
UNSPSC Code
41116107 · 41116107
NACRES
24 · NA.24
Symbol(GHS)
7 · GHS07,GHS09
Signal word
Warning
Hazard statements
319 · H319-H411
Precautionary statements
264 · P264-P273-P280-P305+P351+P338-P337+P313-P391
PPE
95 · Eyeshields, Gloves, type N95 (US)
Safety Statements
22 · 22-24/25
RIDADR
3077 · UN 3077 9 / PGIII
WGK Germany
2 · 2
RTECS
9468750 · QJ9468750
TSCA
TSCA listed
HazardClass
9 · 9
HS Code
29093090 · 29093090
Storage Class
11 · 11 - Combustible Solids
Hazard Classifications
2 Eye · Aquatic Chronic 2Eye Irrit. 2
Toxicity
50 oral · LD50 oral in rat: > 5gm/kg
REACH Registrations
Active
Limited Quantities
5 kg · 5.0 kg (11 lbs) (solid)
Excepted Quantities
Max Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L)
hs_code
29093090
Toxicity
LD50 oral in rat: > 5gm/kg
Signal word
Warning
Symbol(GHS)
GHS07,GHS09
safety_code
22-24/25
hazard_class
9
Storage Class
11 - Combustible Solids
Hazard statements
H319-H411
Limited Quantities
5.0 kg (11 lbs) (solid)
Excepted Quantities
Max Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L)
REACH Registrations
Active
Hazard Classifications
Aquatic Chronic 2Eye Irrit. 2
Precautionary statements
P264-P273-P280-P305+P351+P338-P337+P313-P391

Uses2-methoxynaphthalene acylation was used as a model reaction to study the catalytic benefits of delamination. It was also used to study the alkali-metal-mediated manganation (AMMMn) reactions.

Uses2-Methoxynaphthalene is an Impurity of the non-steroidal anti-inflammatory Naproxen (N377525).

Preparation methods

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

Upstream & downstream products

Upstream raw materials

Aurantiol (methyl anthranilate and hydroxycitronellal schiff base)Methanol1-NaphthylamineSulfuric acid2-Methoxy-1-phenylnaphthalene1-Iodo-2-methoxynaphthalene2-Cyano-6-methoxynaphthalene2-methoxy-3-(methylthio)-naphthalen(2-Methoxy-1-naphthyl)boronic acid1-Bromo-2-methoxynaphthalene2-Bromo-6-methoxynaphthaleneDimethyl acetylenedicarboxylate4,4'-Methylenebis(2,6-dimethylphenol)

Downstream products

6-Methoxy-2-naphthoic acid6-Methoxy-1,2,3,4-tetrahydronaphthalene6-Methoxy-2-naphthaldehyde2-Acetyl-6-methoxynaphthaleneDL-6-Methoxy-alpha-methyl-2-naphthalenemethanol2-Methoxy-1-naphthoic acid2-Bromo-3-methoxynaphthalene3-Methoxy-2-naphthoic acid

Additional notes

DefinitionChEBI: 2-Methoxynaphthalene is a member of naphthalenes.