Methoxsalen
Also known as: 8-Methoxypsoralen, Xanthotoxin, 8-MOP, Ammoidin, Oxsoralen, Meladinine, Uvadex, Puvalen, Puvamet, Deltasoralen, 9-Methoxy-7H-furo[3,2-g]chromen-7-one, 8-MP, Meloxine, Vitpso, Methoxsalen, 8-, 6-Hydroxy-7-methoxy-5-benzofuranacrylic acid d-lactone, 9-Methoxypsoralen
Methoxsalen (CAS 298-81-7) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C12H8O4 and a molecular weight of 216.189 g/mol. Key properties include a melting point of 143-148 ºC, a boiling point of 414.8±45.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 204.7±28.7 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed and H317 — May cause an allergic skin reaction. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 298-81-7
- Jingsj CID
- J-35581-7
- Molecular Formula
- C12H8O4
- Molecular Weight
- 216.189 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 143-148 ºC |
|---|---|
| Boiling Point | 414.8±45.0 °C at 760 mmHg |
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 204.7±28.7 °C |
| Exact Mass | 216.042252 |
| PSA | 52.58000 |
| LogP | 1.93 |
| Vapor Pressure | 0.0±1.0 mmHg at 25°C |
| Refractive Index | 1.635 |
| Storage Conditions | -20°C Freezer, Under Inert Atmosphere |
| Additional Property | PRACTICALLY INSOLUBLE |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H317 — May cause an allergic skin reaction
Activity & Biological Data
| Additional Information | [1]. Alsharari SD, et al. Pharmacokinetic and Pharmacodynamics Studies of Nicotine After Oral Administration in Mice: Effects of Methoxsalen, a CYP2A5/6 Inhibitor. Nicotine Tob Res. 2014 Jan;16(1):18-25. |
|---|
Customs & Trade Information
| HS Code | 2932999099 |
|---|---|
| Summary | 2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of Methoxsalen?
The CAS number of Methoxsalen is 298-81-7.
What are the molecular formula and molecular weight of Methoxsalen?
Methoxsalen has molecular formula C12H8O4 and molecular weight 216.189 g/mol.
Is Methoxsalen hazardous?
Methoxsalen has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H317 — May cause an allergic skin reaction.
What are the upstream and downstream products of Methoxsalen?
For Methoxsalen, Upstream Products: Xanthotoxol, Dimethyl sulfate, iodomethane; Downstream Products: Isopimpinellin, Xanthotoxol, 2,3,4-Trihydroxybenzoic acid.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Methoxsalen (CAS 298-81-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-35581-7 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.