Lapachol
Also known as: 1,4-naphthalenedione,2-hydroxy-3-(3-methyl-2-buten-1-yl)-, 1,4-naphthoquinone,2-hydroxy-3-(3-methyl-2-butenyl)-, 2-hydroxy-3-(3-methyl-2-butenyl)-1,4-naphthoquinone, 2-hydroxy-3-(3-methyl-2-buten-1-yl)-1,4-naphthoquinone, 2-hydroxy-3-(3-methylbut-2-en-1-yl)-1,4-naphthoquinone, bethabarra wood, C.I. 75490, C.I. Natural Yellow 16, greenhartin, ipe-tobacco wood, taigu wood, taiguic acid, tecomin, NSC 11905, NSC 629756, surinam greenheart wood, Lapachol (6CI), MFCD00001679, EINECS 201-563-7
Lapachol (CAS 84-79-7) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C15H14O3 and a molecular weight of 242.270 g/mol. Key properties include a melting point of 141-143ºC(lit.), a boiling point of 390.1±42.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 203.9±24.4 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H312 — Harmful in contact with skin and H332 — Harmful if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 84-79-7
- Jingsj CID
- J-35579-9
- Molecular Formula
- C15H14O3
- Molecular Weight
- 242.270 g/mol
- Category
- Alcohols
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 141-143ºC(lit.) |
|---|---|
| Boiling Point | 390.1±42.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 203.9±24.4 °C |
| Exact Mass | 242.094299 |
| PSA | 54.37000 |
| LogP | 4.08 |
| Vapor Pressure | 0.0±0.9 mmHg at 25°C |
| Refractive Index | 1.606 |
| Additional Property | ethanol: soluble10mg/mL, clear, light yellow to yellow |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H312 — Harmful in contact with skin
- H332 — Harmful if inhaled
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Activity & Biological Data
| Additional Information | [1]. Hidayat Hussain, Karsten Krohn,etc.Lapachol: an overview.ARKIVOC 2007 (ii) 145-171 |
|---|
Customs & Trade Information
| HS Code | 2914690090 |
|---|---|
| Summary | 2914690090 other quinones。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Lapachol?
The CAS number of Lapachol is 84-79-7.
What are the molecular formula and molecular weight of Lapachol?
Lapachol has molecular formula C15H14O3 and molecular weight 242.270 g/mol.
Is Lapachol hazardous?
Lapachol has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H312 — Harmful in contact with skin; H332 — Harmful if inhaled.
What are the upstream and downstream products of Lapachol?
For Lapachol, Upstream Products: 2-Hydroxy-1,4-naphthoquinone, 3,3-Dimethylallyl bromide, 3-Methyl-2-butenal; Downstream Products: β-Lapachone, alpha-Lapachone, Dehydro-α-lapachone.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Lapachol (CAS 84-79-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-35579-9 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.