beta-naphthyl methyl ether
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Fragrance Demo Formulas
2-methoxynaphthalene (Click)
CAS Number: 93-04-9
ECHA EC Number:202-213-6
Beilstein Number: 1859408
MDL: MFCD00004061
FEMA Number: 4704
CoE Number: 4074
XlogP3: 3.50 (est)
Molecular Weight: 158.19990000
Formula: C11 H10 O
BioActivity Summary: listing
NMR Predictor: Predict
Category: flavor and fragrance agents
US / EU / FDA / JECFA / FEMA / FLAVIS / Scholar / Patent Information:
Google Scholar: Search
Google Books: Search
Google Scholar: with word "volatile"Search
Google Scholar: with word "flavor"Search
Google Scholar: with word "odor"Search
Perfumer and Flavorist: Search
Google Patents: Search
US Patents: Search
EU Patents: Search
IBM Patents: Obtain
Pubchem Patents: Search
PubMed: Search
NCBI: Search
Read: Under the conditions of intended use - New developments in the FEMA GRAS program and the safety assessment of flavor ingredients
Read: A GRAS assessment program for flavor ingredients
Read: Sensory testing for flavorings with modifying properties. Food Technology
Read: Criteria for the safety evaluation of flavoring substances
Read: A procedure for the safety evaluation of natural flavor complexes used as ingredients in food: essential oils
Read: FEMA Expert Panel: 30 Years of safety evaluation for the flavor industry
Read: Consumption ratio and food predominance of flavoring materials
JECFA Food Flavoring: 1257  beta-naphthol mether ether
Flavis Number: 04.074 (Old)
EU SANCO Food Flavourings: 04.074  2-methoxynaphthalene

FEMA Number: 4704  beta-naphthyl methyl ether
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Physical Properties:
Appearance: white crystalline flake (est)
Assay: 99.00 to 100.00 % 
Food Chemicals Codex Listed: No
Melting Point: 73.00 to  75.00 °C. @ 760.00 mm Hg
Boiling Point: 274.00 °C. @ 760.00 mm Hg
Congealing Point: 71.50 °C.
Vapor Pressure: 0.010000 mm/Hg @ 25.00 °C. (est)
Flash Point: 208.00 °F. TCC ( 98.00 °C. )
logP (o/w): 3.470
Shelf Life: 36.00 month(s) or longer if stored properly.
Storage: store in cool, dry place in tightly sealed containers, protected from heat and light.
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Organoleptic Properties:
Odor Type: naphthyl
Odor Strength: high ,
recommend smelling in a 1.00 % solution or less
Odor Description:
at 1.00 % in dipropylene glycol. 
sweet naphthyl floral orange blossom acacia neroli
Substantivity: 400 Hour(s)
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Cosmetic Information:
CosIng: cosmetic data
Cosmetic Uses: perfuming agents
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Safety Information:
Most important hazard(s):
Xi N - Irritant, Dangerous for the environment.
  R 36/37/38 - Irritating to eyes, respiratory system, and skin.
R 51/53 - Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
S 02 - Keep out of the reach of children.
S 26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S 36/37/39 - Wear suitable clothing, gloves and eye/face protection.
S 61 - Avoid release to the environment. Refer to special instructions/safety data sheet.
Human Experience: 4 % solution: no irritation or sensitization.
Oral/Parenteral Toxicity:
  oral-rat LD50  > 5000 mg/kg
(Levenstein, 1974h)

oral-mouse LD50  [sex: M,F] 825 mg/kg
(Schafer & Bowles, 1985)

oral-rat LD50  > 5000 mg/kg
Food and Cosmetics Toxicology. Vol. 13, Pg. 885, 1975.

Dermal Toxicity:
  skin-rabbit LD50 > 5000 mg/kg
Food and Cosmetics Toxicology. Vol. 13, Pg. 885, 1975.

Inhalation Toxicity:
  Not determined
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Safety in Use Information:
Category: flavor and fragrance agents
Recommendation for beta-naphthyl methyl ether usage levels up to:
  5.0000 % in the fragrance concentrate.
Maximised Survey-derived Daily Intakes (MSDI-EU): 3.50 (μg/capita/day)
Maximised Survey-derived Daily Intakes (MSDI-USA): 0.01 (μg/capita/day)
Structure Class: III
Use levels for FEMA GRAS flavoring substances on which the FEMA Expert Panel based its judgments that the substances are generally recognized as safe (GRAS).
The Expert Panel also publishes separate extensive reviews of scientific information on all FEMA GRAS flavoring substances and can be found at FEMA Flavor Ingredient Library
publication number: 25
Click here to view publication 25
 average usual ppmaverage maximum ppm
baked goods: 13.0000017.00000
beverages(nonalcoholic): 4.000008.00000
beverages(alcoholic): 0.100000.30000
breakfast cereal: --
cheese: --
chewing gum: 9.0000014.00000
condiments / relishes: --
confectionery froastings: --
egg products: --
fats / oils: --
fish products: --
frozen dairy: 8.0000010.00000
fruit ices: --
gelatins / puddings: 9.0000011.00000
granulated sugar: --
gravies: --
hard candy: 3.000003.00000
imitation dairy: --
instant coffee / tea: --
jams / jellies: --
meat products: --
milk products: --
nut products: --
other grains: --
poultry: --
processed fruits: --
processed vegetables: --
reconstituted vegetables: --
seasonings / flavors: --
snack foods: --
soft candy: 12.0000014.00000
soups: --
sugar substitutes: --
sweet sauces: --
Food categories according to Commission Regulation EC No. 1565/2000 (EC, 2000) in FGE.06 (EFSA, 2002a). According to the Industry the "normal" use is defined as the average of reported usages and "maximum use" is defined as the 95th percentile of reported usages (EFSA, 2002i).
Note: mg/kg = 0.001/1000 = 0.000001 = 1/1000000 = ppm.
 average usage mg/kgmaximum usage mg/kg
Dairy products, excluding products of category 02.0 (01.0): 3.0000015.00000
Fats and oils, and fat emulsions (type water-in-oil) (02.0): 2.0000010.00000
Edible ices, including sherbet and sorbet (03.0): 3.0000015.00000
Processed fruit (04.1): 2.0000010.00000
Processed vegetables (incl. mushrooms & fungi, roots & tubers, pulses and legumes), and nuts & seeds (04.2): --
Confectionery (05.0): 10.0000050.00000
Cereals and cereal products, incl. flours & starches from roots & tubers, pulses & legumes, excluding bakery (06.0): 5.0000025.00000
Bakery wares (07.0): 10.0000050.00000
Meat and meat products, including poultry and game (08.0): 2.0000010.00000
Fish and fish products, including molluscs, crustaceans and echinoderms (MCE) (09.0): 2.0000010.00000
Eggs and egg products (10.0): --
Sweeteners, including honey (11.0): --
Salts, spices, soups, sauces, salads, protein products, etc. (12.0): 5.0000025.00000
Foodstuffs intended for particular nutritional uses (13.0): 10.0000050.00000
Non-alcoholic ("soft") beverages, excl. dairy products (14.1): 3.0000015.00000
Alcoholic beverages, incl. alcohol-free and low-alcoholic counterparts (14.2): 10.0000050.00000
Ready-to-eat savouries (15.0): 15.0000075.00000
Composite foods (e.g. casseroles, meat pies, mincemeat) - foods that could not be placed in categories 01.0 - 15.0 (16.0): 5.0000025.00000
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Safety References:
European Food Safety Athority(efsa): Flavor usage levels; Subacute, Subchronic, Chronic and Carcinogenicity Studies; Developmental / Reproductive Toxicity Studies; Genotoxicity Studies...
European Food Safety Authority (EFSA) reference(s):
Opinion of the Scientific Panel on food additives, flavourings, processing aids and materials in contact with food (AFC) related to Flavouring Group Evaluation 23 (FGE.23): Aliphatic, alicyclic and aromatic ethers including anisole derivatives From chemical groups 15, 16 and 26 (Commission Regulation (EC) No 1565/2000 of 18 July 2000
View page or View pdf
Flavouring Group Evaluation 59 (FGE.59): Consideration of aliphatic and aromatic ethers evaluated by JECFA (61st meeting) structurally related to aliphatic, alicyclic and aromatic ethers including anisole derivatives evaluated by EFSA in FGE.23 (2006) (Commission Regulation (EC) No 1565/2000 of 18 July 2000) - Opinion of the Scientific Panel on Food Additives, Flavourings, Processing Aids and Materials in contact with Food (AFC)
View page or View pdf
Flavouring Group Evaluation 23, Revision 1 (FGE.23Rev1): Aliphatic, alicyclic and aromatic ethers including anisole derivatives from chemical groups 15, 16, 26 and 30[1] - Opinion of the Scientific Panel on Food Additives, Flavourings, Processing Aids and Materials in Contact with Food
View page or View pdf
Scientific Opinion on Flavouring Group Evaluation 59, Revision 1 (FGE.59Rev1): Consideration of aliphatic and aromatic ethers evaluated by JECFA (61st meeting and 63rd meeting) structurally related to aliphatic, alicyclic and aromatic ethers including anisole derivatives evaluated by EFSA in FGE.23 Rev2 (2010)
View page or View pdf
Scientific Opinion on the safety and efficacy of aromatic ethers including anisole derivatives (chemical group 26) when used as feed additives for all animal species
View page or View pdf
EPI System: View Calculate predicted properties
ECHA Data Sheet: View
Env. Mutagen Info. Center: Search
EPA Substance Registry Services (TSCA): 93-04-9
EPA ACToR: Toxicology Data
National Institute of Allergy and Infectious Diseases: Data
WISER: UN 3082
WGK Germany:2
DTP/NCI: 4171
Chemidplus: 0000093049
RTECS: QJ9468750 for cas# 93-04-9
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NIST Chemistry WebBook: Search Inchi
Canada Domestic Sub. List: 93-04-9
Pubchem (cid): 7119
Pubchem (sid): 134972534
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Other Information:
(IUPAC): Atomic Weights of the Elements 2009
(IUPAC): Atomic Weights of the Elements 2009 (pdf)
Videos: The Periodic Table of Videos
tgsc: Atomic Weights use for this web site
(IUPAC): Periodic Table of the Elements
FDA Everything Added to Food in the United States (EAFUS): View
HMDB (The Human Metabolome Database): HMDB32861
Export Tariff Code: 2909.30.0000
ChemSpider: View
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Potential Blenders and core components note
 amber carbinolFR
isoamyl acetateFL/FR
alpha-amyl cinnamaldehydeFL/FR
isoamyl salicylateFL/FR
 amyris wood oilFL/FR
para-anisyl alcoholFL/FR
 beeswax absoluteFL/FR
siam benzoin resinoidFL/FR
 benzyl acetateFL/FR
 benzyl alcoholFL/FR
 benzyl cinnamateFL/FR
 benzyl isoeugenolFL/FR
 benzyl propionateFL/FR
 benzyl salicylateFL/FR
 bergamot oilFL/FR
blood orange oil italyFL/FR
 bois de rose oil brazilFL/FR
isobutyl cinnamateFL/FR
isobutyl salicylateFL/FR
 cassia bark oil chinaFL/FR
 cedarwood oil virginiaFR
 cinnamyl alcoholFL/FR
 clary sage oil franceFL/FR
 clove bud oilFL/FR
 clover nitrileFR
 coriander seed oilFL/FR
para-cresyl caprylateFL/FR
 cyclamen aldehydeFL/FR
 cyclohexyl ethyl alcoholFL/FR
 decyl acetateFL/FR
 dimethyl anthranilateFL/FR
 dimethyl benzyl carbinolFL/FR
 dimethyl benzyl carbinyl acetateFL/FR
 dimethyl benzyl carbinyl butyrateFL/FR
para-dimethyl hydroquinoneFL/FR
 diphenyl oxideFL/FR
 dodecanal (aldehyde C-12 lauric)FL/FR
 ethyl cinnamateFL/FR
 ethyl laurateFL/FR
 ethyl maltolFL/FR
 ethyl phenyl acetateFL/FR
 ethyl vanillinFL/FR
isoeugenyl acetateFL/FR
 fir balsam absoluteFR
 floral pyranolFR
 frankincense oilFL/FR
 guaiacwood oilFL/FR
 gurjun balsam oilFR
 hay absoluteFR
 heliotropyl acetoneFL/FR
 heliotropyl diethyl acetalFR
(Z)-3-hexen-1-yl acetateFL/FR
(Z)-3-hexen-1-yl benzoateFL/FR
(Z)-3-hexen-1-yl propionateFL/FR
(Z)-3-hexen-1-yl salicylateFL/FR
(Z)-3-hexen-1-yl tiglateFL/FR
alpha-hexyl cinnamaldehydeFL/FR
 ho leaf oilFR
 hyacinth etherFR
 lavender absolute bulgariaFL/FR
 linalool oxideFL/FR
 linalyl acetateFL/FR
 mandarin oil (citrus reticulata var. ponkan)FL/FR
para-methyl acetophenoneFL/FR
 methyl anthranilateFL/FR
alpha-methyl cinnamaldehydeFL/FR
 methyl cinnamateFL/FR
 methyl dihydrojasmonateFL/FR
 methyl isoeugenolFL/FR
2-methyl undecanal (aldehyde C-12 mna)FL/FR
 muguet carboxaldehydeFR
beta-naphthyl ethyl etherFL/FR
2-naphthyl phenyl ketone 
 nonanal (aldehyde C-9)FL/FR
 oakmoss absoluteFL/FR
 ocean propanalFL/FR
bitter orange peel oil brazilFL/FR
sweet orange peel oil c.p. brazilFL/FR
bitter orangeflower absolute moroccoFL/FR
 orris pyridine 25% IPMFR
 patchouli ethanoneFR
 peony alcoholFR
 petitgrain oil paraguayFL/FR
 phenethyl acetateFL/FR
 phenethyl alcoholFL/FR
 phenethyl isobutyrateFL/FR
 phenethyl phenyl acetateFL/FR
 phenethyl propionateFL/FR
 phenethyl salicylateFL/FR
 phenyl acetaldehyde dimethyl acetalFL/FR
3-phenyl propionaldehydeFL/FR
3-phenyl propyl alcoholFL/FR
 raspberry ketoneFL/FR
 raspberry ketone acetateFL/FR
 raspberry ketone methyl etherFL/FR
 rose butanoateFL/FR
 strawberry furanoneFL/FR
 strawberry glycidate 1 (aldehyde C-16 (so-called))FL/FR
alpha-terpinyl acetateFL/FR
 tonka bean absoluteFR
gamma-undecalactone (aldehyde C-14 (so-called))FL/FR
10-undecen-1-al (aldehyde C-11 undecylenic)FL/FR
 vanilla bean absolute (vanilla planifolia)FL/FR
 vanillyl acetateFL/FR
 violet leaf absoluteFL/FR
 violet methyl carbonateFR
 watermelon ketoneFR
 woody acetateFR
(Z)-woody amyleneFR
 ylang ylang flower oilFL/FR
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Potential Uses:
 acacia cassie farnesianaFR
 bubble gumFR
 cherry blossomFR
 fern fougereFR
 honeysuckle chevrefeuilleFR
 narcissus narcisseFR
 orange blossomFR
 rain springFR
 rose mossFR
 sweet peaFR
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Natural Occurrence in: note
 not found in nature
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2-methoxy naphthalene
 methyl 2-naphthyl ether
 methyl beta-naphthyl ether
 methyl naphthalen-2-yl ether
beta-naphthol mether ether
2-naphthol methyl ether
2-naphthyl methyl ether
beta-naphthyl methyl ether
 naphthyl methyl ether 10% BB
beta-napthyl methyl ether
 nerolin yara yara
 neroline yara yara
 yara yara
 yara yara crystals
 yara yara distilled
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click on the picture(s) below to
interact with the 3D model
Picture of molecule
Soluble in:
 water, 75.88 mg/L @ 25 °C (est)
Insoluble in:
 dipropylene glycol
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