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General Material Information

Preferred name 2-isobutyl pyridine
Trivial Name 2-Isobutylpyridine
Short Description 2-(2-methylpropyl)pyridine
Formula C9 H13 N
CAS Number 6304-24-1
FEMA Number 3370
Flavis Number 14.058
ECHA Number 228-606-2
FDA UNII GS3K23H1Q8
Nikkaji Number J206.885K
MDL MFCD02262142
COE Number 11395
Bio Activity Summary External link
NMR Predictor External link
JECFA Food Flavoring 1311 2-(2-methylpropyl)pyridine
FDA Patent No longer provide for the use of these seven synthetic flavoring substances
FDA Mainterm 6304-24-1 ; 2-(2-METHYLPROPYL)PYRIDINE
Synonyms
  • 2-iso butylpyridine
  • 2-iso butylpyridine 0.1% in triacetin
  • 2-(2-methyl propyl) pyridine
  • 2-(2-methylpropyl) pyridine
  • 2-(2-methylpropyl)pyridine
  • pyridine, 2-(2-methylpropyl)-
  • pyridine, 2-isobutyl-
  • 2-(2-methylpropyl)pyridine
  • 2-Isobutylpyridine
  • NSC 42623
  • 2-(2-Methylprop-1-yl)pyridine

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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
HMDB (The Human Metabolome Database):HMDB37291
FooDB:FDB016310
Export Tariff Code:2933.39.9050
VCF-Online:VCF Volatile Compounds in Food
ChemSpider:View

PhysChem Properties

Material listed in food chemical codex No
Molecular weight 135.20960998535
Specific gravity @ 25 °C
Pounds per Gallon 7.439 to 7.489
Refractive Index 1.48 to 1.486 @ 20 °C
Boiling Point 110 to 111°C @ 55 mm Hg
Acid Value 1 max KOH/g
Vapor Pressure 1.109 mmHg @ 25 °C
Flash Point TCC Value 44.44 °C TCC
logP (o/w) 2.591 est
Solubility
alcohol Yes
water, 7813 mg/L @ 25 °C (est) Yes
water No

Organoleptic Properties

Odor Type: Aromatic
aromatic, pepper bell pepper
General comment At 0.10 % in dipropylene glycol. strong aromatic bell pepper
Flavor Type: Green
green, pepper bell pepper
General comment Bell pepper

Occurrences

Safety Information

Safety information

Preferred SDS: View
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.
Oral/Parenteral Toxicity:
Not determined
Dermal Toxicity:
Not determined
Inhalation Toxicity:
Not determined

Safety in use information

Category:
flavoring agents
Recommendation for 2-isobutyl pyridine usage levels up to:
not for fragrance use.
Maximised Survey-derived Daily Intakes (MSDI-EU): 0.0061 (μg/capita/day)
Maximised Survey-derived Daily Intakes (MSDI-USA): 0.90 (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: 6
Click here to view publication 6
average usual ppmaverage maximum ppm
baked goods: --
beverages(nonalcoholic): --
beverages(alcoholic): --
breakfast cereal: --
cheese: --
chewing gum: --
condiments / relishes: -0.50000
confectionery froastings: --
egg products: --
fats / oils: --
fish products: --
frozen dairy: --
fruit ices: --
gelatins / puddings: --
granulated sugar: --
gravies: -0.20000
hard candy: --
imitation dairy: --
instant coffee / tea: --
jams / jellies: --
meat products: -0.20000
milk products: --
nut products: --
other grains: --
poultry: --
processed fruits: --
processed vegetables: --
reconstituted vegetables: --
seasonings / flavors: --
snack foods: --
soft candy: --
soups: -0.20000
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): --
Fats and oils, and fat emulsions (type water-in-oil) (02.0): -1.00000
Edible ices, including sherbet and sorbet (03.0): --
Processed fruit (04.1): --
Processed vegetables (incl. mushrooms & fungi, roots & tubers, pulses and legumes), and nuts & seeds (04.2): --
Confectionery (05.0): 0.02500-
Chewing gum (05.3): --
Cereals and cereal products, incl. flours & starches from roots & tubers, pulses & legumes, excluding bakery (06.0): --
Bakery wares (07.0): 0.25000-
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): --
Foodstuffs intended for particular nutritional uses (13.0): --
Non-alcoholic ("soft") beverages, excl. dairy products (14.1): 0.09000-
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)
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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)
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Scientific Opinion on Flavouring Group Evaluation 96 (FGE.96): Consideration of 88 flavouring substances considered by EFSA for which EU production volumes / anticipated production volumes have been submitted on request by DG SANCO. Addendum to FGE. 51, 52, 53, 54, 56, 58, 61, 62, 63, 64, 68, 69, 70, 71, 73, 76, 77, 79, 80, 83, 84, 85 and 87.
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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
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EPA ACToR:Toxicology Data
EPA Substance Registry Services (SRS):Registry
Laboratory Chemical Safety Summary :61385
National Institute of Allergy and Infectious Diseases:Data
WGK Germany:3
2-(2-methylpropyl)pyridine
Chemidplus:0006304241