Lonapalene
Also known as: RS4317, RS-43197, 6-Chloro-2,3-dimethoxy-1,4-naphthalenediol diacetate, 6-chloro-1,4-diacetoxy-2,3-dimethoxynaphthalene, LONAPALENE, Lonapaleno, Lonapalenum, Lopalene, RS 43179, RS-43179
Lonapalene (CAS 91431-42-4) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C16H15ClO6 and a molecular weight of 338.74000 g/mol. Key properties include a boiling point of 424.9ºC at 760mmHg, a density of 1.309g/cm3 and a flash point of 159.3ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 91431-42-4
- Jingsj CID
- J-1974926-9
- Molecular Formula
- C16H15ClO6
- Molecular Weight
- 338.74000 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 424.9ºC at 760mmHg |
|---|---|
| Density | 1.309g/cm3 |
| Flash Point | 159.3ºC |
| Exact Mass | 338.05600 |
| PSA | 71.06000 |
| LogP | 3.36100 |
| Refractive Index | 1.571 |
Activity & Biological Data
| Target | 5-lipoxygenase[1] |
|---|---|
| Additional Information | [1]. Black AK, et al. Pharmacologic and clinical effects of lonapalene (RS 43179), a 5-lipoxygenase inhibitor, in psoriasis. J Invest Dermatol. 1990 Jul;95(1):50-4. |
Frequently Asked Questions
What is the CAS number of Lonapalene?
The CAS number of Lonapalene is 91431-42-4.
What are the molecular formula and molecular weight of Lonapalene?
Lonapalene has molecular formula C16H15ClO6 and molecular weight 338.74000 g/mol.
What are the upstream and downstream products of Lonapalene?
For Lonapalene, Upstream Products: 4-Bromochlorobenzene, 1,4-Benzoquinone, 2,3-dimethoxy-1,4-benzoquinone.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Lonapalene (CAS 91431-42-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1974926-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.