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General Material Information

Preferred name 6-methyl quinoline
Trivial Name 6-Methylquinoline
Short Description 6-methylquinoline
Formula C10 H9 N
CAS Number 91-62-3
FEMA Number 2744
Flavis Number 14.042
ECHA Number 202-084-6
FDA UNII K14453I13N
Nikkaji Number J800A
Beilstein Number 0110336
MDL MFCD00006804
COE Number 2339
Bio Activity Summary External link
NMR Predictor External link
JECFA Food Flavoring 1302 6-methylquinoline
FDA Patent No longer provide for the use of these seven synthetic flavoring substances
FDA Mainterm 91-62-3 ; 6-METHYLQUINOLINE
Synonyms
  • khinaldin
  • 6-methylchinolin
  • 6-methylquinoline
  • paramethylquinolene
  • quinoline, 6-methyl-
  • 6-Methylquinoline
  • NSC 4152

US / EU / FDA / JECFA / FEMA / Scholar / Patents

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Literature & References

6-methylquinoline
NIST Chemistry WebBook:Search Inchi
Canada Domestic Sub. List:91-62-3
Pubchem (cid):7059
Pubchem (sid):134971581
Publications by PubMed
Heterocyclic Aromatic Hydrocarbons Show Estrogenic Activity upon Metabolization in a Recombinant Transactivation Assay.
Genotoxicity of heterocyclic PAHs in the micronucleus assay with the fish liver cell line RTL-W1.
Molecules of the quinoline family block tau self-aggregation: implications toward a therapeutic approach for Alzheimer's disease.
Synthesis and in-vitro antimicrobial activity of secondary and tertiary amines containing 2-chloro-6-methylquinoline moiety.
4-Azido-2-chloro-6-methyl-quinoline.
Novel chalcones derived from 2-chloro-3-formyl-6-methylquinoline.
Heterocyclic compounds: toxic effects using algae, daphnids, and the Salmonella/microsome test taking methodical quantitative aspects into account.
Tetra-μ-benzoato-bis-[(6-methyl-quino-line)-copper(II)].
Inclusion of quinolines by binaphthol: structures and selectivity.
Chloride-sensitive fluorescent indicators.
The formation of 1-hydroxymethylnaphthalene and 6-hydroxymethylquinoline by both oxidative and reductive routes in Cunninghamella elegans.
Hydroxylation and biodegradation of 6-methylquinoline by pseudomonads in aqueous and nonaqueous immobilized-cell bioreactors.
The hepatic metabolism of two methylquinolines.
Uptake and biotransformation of 6,7-dimethylquinoline and 6,8-dimethylquinoline by rainbow trout (Salmo gairdneri).
Studies on antibiotic biosynthesis by protoplasts and resting cells of Streptomyces echinatus. Part II. Effect of chromophore precursors.
Directed biosynthesis of novel derivatives of echinomycin. II. Purification and structure elucidation.
Directed biosynthesis of novel derivatives of echinomycin by Streptomyces echinatus. I. Effect of exogenous analogues of quinoxaline-2-carboxylic acid on the fermentation.
Study of artificial flavouring substances for mutagenicity in the Salmonella/microsome, Basc and micronucleus tests.
Carcinogenicities of quinoline derivatives in F344 rats.
Toxic interaction of mixtures of two coal conversion effluent components (resorcinol and 6-methylquinoline) to Daphnia magna.
Determination of quinomethionate (6-methylquinoline-2,3-diyldithiocarbonate) residues in crops by in situ fluorometry.
[Production and purification of quinoline bases. 6. Modified arrangement of 6-methylquinoline-N-oxide in the 4 position].
Some derivatives of 6-methylquinoline.

Other Information

(IUPAC):Atomic Weights of the Elements 2011 (pdf)
Videos:The Periodic Table of Videos
tgsc:Atomic Weights use for this web site
(IUPAC):Periodic Table of the Elements
FDA Substances Added to Food (formerly EAFUS):View
CHEMBL:View
HMDB (The Human Metabolome Database):HMDB33115
FooDB:FDB011115
Export Tariff Code:2933.49.7000
VCF-Online:VCF Volatile Compounds in Food
ChemSpider:View

PhysChem Properties

Material listed in food chemical codex No
Molecular weight 143.18873596191
Specific gravity @ 25 °C
Pounds per Gallon 8.82 to 8.87
Specific gravity @ 20 °C
Pounds per Gallon 8.856 to 8.922
Refractive Index 1.611 to 1.617 @ 20 °C
Boiling Point 259 to 261°C @ 760 mm Hg
Vapor Pressure 0.022 mmHg @ 25 °C
Flash Point TCC Value 110 °C TCC
logP (o/w) 2.57
Solubility
alcohol Yes
dipropylene glycol Yes
water, 631.1 mg/L @ 25 °C (est) Yes
water No

Organoleptic Properties

Odor Type: Animal
leathery, tonka, castoreum, tobacco, civet, fecal
Odor strength high , recommend smelling in a 1.00 % solution or less
Substantivity 400 hour(s) at 10.00 % in dipropylene glycol
Luebke, William tgsc, (1990) At 1.00 % in dipropylene glycol. leather tonka castoreum tobacco civet fecal
Flavor Type: Animal
animal, tonka, naphthyl, tobacco, anisic, phenolic
Luebke, William tgsc, (1990) Sweet animal tonka naphthyl tobacco anisic phenolic

Occurrences

Safety Information

Safety information

Preferred SDS: View
European information :
Most important hazard(s):
Xn - Harmful.
R 22 - Harmful if swallowed.
R 36/37/38 - Irritating to eyes, respiratory system, and skin.
R 40 - Limited evidence of a carcinogenic effect.
S 02 - Keep out of the reach of children.
S 20/21 - When using do not eat, drink or smoke.
S 24/25 - Avoid contact with skin and eyes.
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.
Hazards identification
Classification of the substance or mixture
GHS Classification in accordance with 29 CFR 1910 (OSHA HCS)
None found.
GHS Label elements, including precautionary statements
Pictogram
Hazard statement(s)
None found.
Precautionary statement(s)
None found.
Human Experience:
2 % solution: no irritation or sensitization.
Oral/Parenteral Toxicity:
oral-rat LD50 800 mg/kg
(Soviet Toxicologic Center, 1984)

oral-rat LD50 1260 mg/kg
(Moreno, 1976y)

oral-rat LD50 800 mg/kg
BEHAVIORAL: MUSCLE CONTRACTION OR SPASTICITY) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY) LUNGS, THORAX, OR RESPIRATION: RESPIRATORY STIMULATION
Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 28(12), Pg. 56, 1984.

Dermal Toxicity:
skin-rabbit LD50 5000 mg/kg
Food and Cosmetics Toxicology. Vol. 17, Pg. 871, 1979.

Inhalation Toxicity:
Not determined

Safety in use information

Category:
flavor and fragrance agents
RIFM Fragrance Material Safety Assessment: Search
IFRA Code of Practice Notification of the 49th Amendment to the IFRA Code of Practice
Recommendation for 6-methyl quinoline usage levels up to:
1.0000 % in the fragrance concentrate.
Maximised Survey-derived Daily Intakes (MSDI-EU): 0.32 (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: 3
Click here to view publication 3
average usual ppmaverage maximum ppm
baked goods: -1.80000
beverages(nonalcoholic): -0.22000
beverages(alcoholic): --
breakfast cereal: --
cheese: --
chewing gum: --
condiments / relishes: --
confectionery froastings: --
egg products: --
fats / oils: --
fish products: --
frozen dairy: -1.40000
fruit ices: -1.40000
gelatins / puddings: --
granulated sugar: --
gravies: --
hard candy: -1.80000
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: --
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): 0.0240019.00000
Fats and oils, and fat emulsions (type water-in-oil) (02.0): 2.90000-
Edible ices, including sherbet and sorbet (03.0): -9.70000
Processed fruit (04.1): --
Processed vegetables (incl. mushrooms & fungi, roots & tubers, pulses and legumes), and nuts & seeds (04.2): --
Confectionery (05.0): 2.9000029.00000
Chewing gum (05.3): --
Cereals and cereal products, incl. flours & starches from roots & tubers, pulses & legumes, excluding bakery (06.0): 5.00000-
Bakery wares (07.0): 1.5000013.00000
Meat and meat products, including poultry and game (08.0): --
Fish and fish products, including molluscs, crustaceans and echinoderms (MCE) (09.0): --
Eggs and egg products (10.0): --
Sweeteners, including honey (11.0): --
Salts, spices, soups, sauces, salads, protein products, etc. (12.0): 1.20000-
Foodstuffs intended for particular nutritional uses (13.0): --
Non-alcoholic ("soft") beverages, excl. dairy products (14.1): 0.00058-
Alcoholic beverages, incl. alcohol-free and low-alcoholic counterparts (14.2): --
Ready-to-eat savouries (15.0): --
Composite foods (e.g. casseroles, meat pies, mincemeat) - foods that could not be placed in categories 01.0 - 15.0 (16.0): --

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 24 (FGE.24): Pyridine, pyrrole, indole and quinoline derivatives from chemical group 28 (Commission Regulation (EC) No 1565/2000 of 18 July 2000)
View page or View pdf

Pyridine, pyrrole, indole and quinoline derivatives from chemical group 28 Flavouring Group Evaluation 24, Revision 1 - Scientific Opinion of the Panel on Food Additives, Flavourings, Processing Aids and Materials in contact with Food (AFC)
View page or View pdf

Flavouring Group Evaluation 77 (FGE77) [1] - Consideration of Pyridine, Pyrrole and Quinoline Derivatives evaluated by JECFA (63rd meeting) structurally related to Pyridine, Pyrrole, Indole and Quinoline Derivatives evaluated by EFSA in FGE.24Rev1 (2008)
View page or View pdf

Statement on List of Representative Substances for Testing. The current Statement lays down a list of substances in sub-groups with representative substances for which additional data are required prior to their evaluation through the Procedure (Regulation (EC) No 1565/2000).
View page or View pdf

Scientific opinion on Flavouring Group Evaluation 24, Revision 2 (FGE.24Rev2): Pyridine, pyrrole, indole and quinoline derivatives from chemical group 28
View page or View pdf

Scientific Opinion on Flavouring Group Evaluation 77, Revision 2 (FGE.77Rev2): Consideration of Pyridine, Pyrrole and Quinoline Derivatives evaluated by JECFA (63rd meeting) structurally related to Pyridine, Pyrrole, Indole and Quinoline Derivatives evaluated by EFSA in FGE.24Rev2 (2013)
View page or View pdf

Scientific opinion on flavouring group evaluation 77, revision 3 (FGE.77Rev3): consideration of pyridine, pyrrole and quinoline derivatives evaluated by JECFA (63rd meeting) structurally related to pyridine, pyrrole, indole and quinoline derivatives evaluated by EFSA in FGE.24Rev2
View page or View pdf

EPI System: View
Chemical Carcinogenesis Research Information System:Search
AIDS Citations:Search
Cancer Citations:Search
Toxicology Citations:Search
Carcinogenic Potency Database:Search
EPA GENetic TOXicology:Search
EPA Substance Registry Services (TSCA):91-62-3
EPA ACToR:Toxicology Data
EPA Substance Registry Services (SRS):Registry
Laboratory Chemical Safety Summary :7059
National Institute of Allergy and Infectious Diseases:Data
WGK Germany:3
6-methylquinoline
Chemidplus:0000091623
EPA/NOAA CAMEO:hazardous materials
RTECS:VC0550000 for cas# 91-62-3