lettucenin A
 
Notes:
None found
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CAS Number: 97915-46-3Picture of molecule3D/inchi
Nikkaji Web: J122.702E
XlogP3-AA: 1.00 (est)
Molecular Weight: 240.25824000
Formula: C15 H12 O3
NMR Predictor: Predict (works with chrome or firefox)
Category: natural substances and extractives
 
US / EU / FDA / JECFA / FEMA / FLAVIS / Scholar / Patent Information:
Google Scholar: Search
Google Books: Search
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Google Scholar: with word "flavor"Search
Google Scholar: with word "odor"Search
Google Patents: Search
US Patents: Search
EU Patents: Search
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PubMed: Search
NCBI: Search
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Physical Properties:
Assay: 95.00 to 100.00 % 
Food Chemicals Codex Listed: No
Soluble in:
 water, 852.8 mg/L @ 25 °C (est)
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Organoleptic Properties:
 
Odor and/or flavor descriptions from others (if found).
 
 
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Cosmetic Information:
None found
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Suppliers:
 None found
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Safety Information:
 
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
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Safety in Use Information:
Category: natural substances and extractives
Recommendation for lettucenin A usage levels up to:
 not for fragrance use.
 
Recommendation for lettucenin A flavor usage levels up to:
 not for flavor use.
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Safety References:
EPI System: View
Cancer Citations: Search
Toxicology Citations: Search
EPA ACToR: Toxicology Data
EPA Substance Registry Services (SRS): Registry
Laboratory Chemical Safety Summary : 178999
National Institute of Allergy and Infectious Diseases: Data
 6-methyl-9-methylidene-2-oxo-7,8-dihydroazuleno[4,5-b]furan-3-carbaldehyde
Chemidplus: 0097915463
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References:
 6-methyl-9-methylidene-2-oxo-7,8-dihydroazuleno[4,5-b]furan-3-carbaldehyde
NIST Chemistry WebBook: Search Inchi
Pubchem (cid): 178999
Pubchem (cas): 97915-46-3
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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
HMDB (The Human Metabolome Database): HMDB36738
FooDB: FDB015675
VCF-Online: VCF Volatile Compounds in Food
ChemSpider: View
EFSA Update of results on the monitoring of furan levels in food: Read Report
EFSA Previous report: Results on the monitoring of furan levels in food: Read Report
EFSA Report of the CONTAM Panel on provisional findings on furan in food: Read Report
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Potential Blenders and core components note
 
None Found
 
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Potential Uses:
None Found
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Occurrence (nature, food, other): note
 lactuca sativa
Search Trop  Picture
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Synonyms:
 azuleno(4,5-b)furan-3-carboxaldehyde, 2,7,8,9-tetrahydro-6-methyl-9-methylene-2-oxo-
6-methyl-9-methylidene-2-oxo-7,8-dihydroazuleno[4,5-b]furan-3-carbaldehyde
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Articles:
PubMed: Structural and Sensory Characterization of Novel Sesquiterpene Lactones from Iceberg Lettuce.
PubMed: Lettucenin sesquiterpenes contribute significantly to the browning of lettuce.
PubMed: Cloning and expression of sesquiterpene synthase genes from lettuce (Lactuca sativa L.).
PubMed: Metabolite profiling of sesquiterpene lactones from Lactuca species. Major latex components are novel oxalate and sulfate conjugates of lactucin and its derivatives.
PubMed: Hrp Mutant of Pseudomonas syringae pv phaseolicola Induces Cell Wall Alterations but Not Membrane Damage Leading to the Hypersensitive Reaction in Lettuce.
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