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142905

Sigma-Aldrich

Lapachol

98%

Synonym(s):

2-Hydroxy-3-(3-methyl-2-butenyl)-1,4-naphthoquinone, Natural Yellow 16

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About This Item

Empirical Formula (Hill Notation):
C15H14O3
CAS Number:
84-79-7
Molecular Weight:
242.27
Colour Index Number:
75490
EC Number:
201-563-7
MDL number:
MFCD00001679
UNSPSC Code:
12352100
PubChem Substance ID:
24848565
NACRES:
NA.22

Assay

98%

form

solid

mp

141-143 °C (lit.)

solubility

ethanol: soluble 10 mg/mL, clear, light yellow to yellow

SMILES string

C\C(C)=C\CC1=C(O)C(=O)c2ccccc2C1=O

InChI

1S/C15H14O3/c1-9(2)7-8-12-13(16)10-5-3-4-6-11(10)14(17)15(12)18/h3-7,18H,8H2,1-2H3

InChI key

CIEYTVIYYGTCCI-UHFFFAOYSA-N

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General description

Lapachol is natural naphthoquinone compound derived from Bignoniaceae (Tabebuia sp.).

Application

Lapachol was used in the synthesis of the lapachol metal complexes.

Biochem/physiol Actions

Lapachol has antimicrobial properties against many pathogens. It has anti-inflammatory, analgesic and antibiotic properties. It is inhibitor of epithelial tumors in Drosophila melanogaster heterozygote.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H302

Precautionary Statements

P301 + P312 + P330

Hazard Classifications

Acute Tox. 4 Oral

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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Renato A S Oliveira et al.
International immunopharmacology, 10(11), 1463-1473 (2010-09-15)
The present study reports the anti-mycobacterial activity of 2-hydroxy-3-(3-methyl-2-butenyl)-1,4-naphthoquinone (lapachol) as well as its influence on macrophage functions. Lapachol (L) did not induce apoptosis/necrosis of THP-1 macrophages at ≤32 μg/mL. Mycobacterium avium liquid growth was arrested by ≥32 μg/mL and
Ricardo Vessecchi et al.
Journal of mass spectrometry : JMS, 47(12), 1648-1659 (2013-01-03)
In order to understand the influence of alkyl side chains on the gas-phase reactivity of 1,4-naphthoquinone derivatives, some 2-hydroxy-1,4-naphthoquinone derivatives have been prepared and studied by electrospray ionization tandem mass spectrometry in combination with computational quantum chemistry calculations. Protonation and
Cristian Salas et al.
Bioorganic & medicinal chemistry, 16(2), 668-674 (2007-11-22)
Derivatives of natural quinones with biological activities, such as lapachol, alpha- and beta-lapachones, have been synthesized and their trypanocidal activity evaluated in vitro in Trypanosoma cruzi cells. All tested compounds inhibited epimastigote growth and trypomastigote viability. Several compounds showed similar
Lu Bai et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 944, 128-135 (2013-12-10)
Lapachol is a natural naphthoquinone compound derived from Bignoniaceae (Tabebuia sp.) that possesses a range of significant biological activities. Nine phase I and four phase II metabolites of lapachol in rat bile were firstly elucidated and identified using a sensitive
Eduardo J S Salustiano et al.
Investigational new drugs, 28(2), 139-144 (2009-03-04)
The pentacyclic 1,4-naphthoquinones 1a-d were cytotoxic (IC(50) approximately 2-7 microM) to human leukemic cell lines K562 (oxidative stress-resistant), Lucena-1 (MDR phenotype) and Daudi. Fresh leukemic cells obtained from patients, some with the MDR phenotype, were also sensitive to these compounds.
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