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pyridine, 2,5-dimethyl-

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CAS Number: 589-93-5Picture of molecule3D/inchi
ECHA EINECS - REACH Pre-Reg:209-666-9
Nikkaji Web:J6.752K
XlogP3-AA:1.60 (est)
Molecular Weight:107.15573000
Formula:C7 H9 N
NMR Predictor:Predict (works with chrome, Edge or firefox)
Category:natural substances and extractives
US / EU / FDA / JECFA / FEMA / FLAVIS / Scholar / Patent Information:
Google Scholar:Search
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Google Scholar: with word "volatile"Search
Google Scholar: with word "flavor"Search
Google Scholar: with word "odor"Search
Google Patents:Search
US Patents:Search
EU Patents:Search
Pubchem Patents:Search
Physical Properties:
Appearance:colorless to pale yellow clear liquid (est)
Assay: 95.00 to 100.00
Food Chemicals Codex Listed: No
Specific Gravity:0.93000 to 0.93200 @ 20.00 °C.
Pounds per Gallon - (est).: 7.748 to 7.764
Refractive Index:1.50000 to 1.50200 @ 20.00 °C.
Boiling Point: 157.00 °C. @ 760.00 mm Hg
Boiling Point: 158.00 °C. @ 760.00 mm Hg (est)
Vapor Pressure:3.360000 mmHg @ 25.00 °C.
Flash Point: 118.00 °F. TCC ( 47.80 °C. ) (est)
logP (o/w): 1.708 (est)
Soluble in:
 water, 2.70E+05 mg/L @ 25 °C (exp)
Insoluble in:
Organoleptic Properties:
Flavor Type: roasted
roasted green earthy
Taste Description: roasted green earthy
Odor and/or flavor descriptions from others (if found).
Cosmetic Information:
None found
Santa Cruz Biotechnology
For experimental / research use only.
Sigma-Aldrich: Aldrich
For experimental / research use only.
2,5-Lutidine 95%
For experimental / research use only.
2,5-Lutidine >98.0%(GC)
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
Hazard statement(s)
None found.
Precautionary statement(s)
None found.
Oral/Parenteral Toxicity:
oral-rat LD50 800 mg/kg
Hygiene and Sanitation Vol. 33(10-12), Pg. 341, 1968.

oral-mouse LD50 670 mg/kg
Hygiene and Sanitation Vol. 33(10-12), Pg. 341, 1968.

oral-guinea pig LD50 827 mg/kg
Hygiene and Sanitation Vol. 33(10-12), Pg. 341, 1968.

Dermal Toxicity:
Not determined
Inhalation Toxicity:
Not determined
Safety in Use Information:
natural substances and extractives
Recommendation for 2,5-lutidine usage levels up to:
 not for fragrance use.
Recommendation for 2,5-lutidine flavor usage levels up to:
 not for flavor use.
Safety References:
EPI System: View
AIDS Citations:Search
Cancer Citations:Search
Toxicology Citations:Search
EPA Substance Registry Services (TSCA):589-93-5
EPA ACToR:Toxicology Data
EPA Substance Registry Services (SRS):Registry
Laboratory Chemical Safety Summary :11526
National Institute of Allergy and Infectious Diseases:Data
WGK Germany:3
RTECS:OK9625000 for cas# 589-93-5
NIST Chemistry WebBook:Search Inchi
Pubchem (cid):11526
Pubchem (sid):134976730
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
HMDB (The Human Metabolome Database):Search
Export Tariff Code:2933.39.1000
VCF-Online:VCF Volatile Compounds in Food
Potential Blenders and core components note
None Found
Potential Uses:
None Found
Occurrence (nature, food, other):note
 tea leaf
Search Trop Picture
2,5-dimethyl pyridine
 pyridine, 2,5-dimethyl-


US Patents:3,931,166 - Certain 2,5-dimethyl-3-thiopyrazines
PubMed:Spectroscopic properties, NLO, HOMO-LUMO and NBO analysis of 2,5-Lutidine.
US Patents:Flavoring agent
PubMed:Adsorption mechanism of substituted pyridines on silica suspensions: an NMR study.
PubMed:Kinetics of CO binding to the haem domain of murine inducible nitric oxide synthase: differential effects of haem domain ligands.
PubMed:N-donor effects on carboxylate binding in mononuclear iron(II) complexes of a sterically hindered benzoate ligand.
PubMed:[The biological effect and hygienic importance of alpha-picoline and 2,5-lutidine as water pollutants].
None found
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