EU/US Properties Organoleptics Cosmetics Suppliers Safety Safety in use Safety references References Other Blenders Uses Occurrence Synonyms Articles Notes

2H-naphthol[1,2-b]pyan-5,6-dione, 3,4-dihydro-2,2-dimethyl-

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CAS Number: 4707-32-8Picture of molecule3D/inchi
Beilstein Number:0181499
XlogP3-AA:2.20 (est)
Molecular Weight:242.27418000
Formula:C15 H14 O3
BioActivity Summary:listing
NMR Predictor:Predict (works with chrome, Edge or firefox)
Category:antimicrobial agents
US / EU / FDA / JECFA / FEMA / FLAVIS / Scholar / Patent Information:
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Google Patents:Search
US Patents:Search
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Pubchem Patents:Search
Physical Properties:
Assay: 95.00 to 100.00
Food Chemicals Codex Listed: No
Boiling Point: 381.40 °C. @ 760.00 mm Hg (est)
Flash Point: 337.00 °F. TCC ( 169.70 °C. ) (est)
logP (o/w): 2.820 (est)
Soluble in:
 water, 48.47 mg/L @ 25 °C (est)
Organoleptic Properties:
Odor and/or flavor descriptions from others (if found).
Cosmetic Information:
CosIng:cosmetic data
Cosmetic Uses: antimicrobial agents
skin conditioning
BOC Sciences
For experimental / research use only.
beta-Lapachone > 98%
Odor: characteristic
Use: b-Lapachone is a naturally occurring quinone obtained from the bark of the lapacho tree (Tabebuia avellanedae)
Santa Cruz Biotechnology
For experimental / research use only.
beta-Lapachone ≥98%
Sigma-Aldrich: Sigma
For experimental / research use only.
beta-Lapachone ≥98% (TLC)
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:
Not determined
Dermal Toxicity:
Not determined
Inhalation Toxicity:
Not determined
Safety in Use Information:
antimicrobial agents
Recommendation for beta-lapachone usage levels up to:
 not for fragrance use.
Recommendation for beta-lapachone flavor usage levels up to:
 not for flavor use.
Safety References:
EPI System: View
AIDS Citations:Search
Cancer Citations:Search
Toxicology Citations:Search
EPA ACToR:Toxicology Data
EPA Substance Registry Services (SRS):Registry
Laboratory Chemical Safety Summary :3885
National Institute of Allergy and Infectious Diseases:Data
WGK Germany:3
RTECS:QL6127400 for cas# 4707-32-8
NIST Chemistry WebBook:Search Inchi
Pubchem (cid):3885
Pubchem (sid):135023007
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
VCF-Online:VCF Volatile Compounds in Food
Potential Blenders and core components note
None Found
Potential Uses:
None Found
Occurrence (nature, food, other):note
 tabebuia avellanedae
Search Trop Picture
2H-naphthol[1,2-b]pyan-5,6-dione, 3,4-dihydro-2,2-dimethyl-


PubMed:Beta-lapachone, a modulator of NAD metabolism, prevents health declines in aged mice.
PubMed:Beta-lapachone (LAPA) decreases cell viability and telomerase activity in leukemia cells: suppression of telomerase activity by LAPA.
PubMed:Beta-lapachone, a quinone isolated from Tabebuia avellanedae, induces apoptosis in HepG2 hepatoma cell line through induction of Bax and activation of caspase.
PubMed:Toxic potential of dietary genistein isoflavone and beta-lapachone on capacitation and acrosome reaction of epididymal spermatozoa.
inhibitor of reverse transcriptase & dna polymerase; inhibitor of dna topoisomerase.
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