Naphthofluorescein
Also known as: Naphthafluorescein, Spiro[7H-dibenzo[c,h]xanthene-7,1'(3'H)-isobenzofuran]-3'-one,3,11-dihydroxy-, 3,11-dihydroxyspiro[7H-dibenzo[c,h]xanthene-7,1'(3'H)-isobenzofuran]-3'-one
Naphthofluorescein (CAS 61419-02-1) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C28H16O5 and a molecular weight of 432.424 g/mol. Key properties include a melting point of 189ºC (dec.)(lit.), a boiling point of 755.5±60.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 266.4±26.4 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 61419-02-1
- Jingsj CID
- J-1971721-8
- Molecular Formula
- C28H16O5
- Molecular Weight
- 432.424 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 189ºC (dec.)(lit.) |
|---|---|
| Boiling Point | 755.5±60.0 °C at 760 mmHg |
| Density | 1.6±0.1 g/cm3 |
| Flash Point | 266.4±26.4 °C |
| Exact Mass | 432.099762 |
| PSA | 75.99000 |
| LogP | 5.09 |
| Vapor Pressure | 0.0±2.6 mmHg at 25°C |
| Refractive Index | 1.861 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Activity & Biological Data
| Target | HIF-1[1] |
|---|---|
| Additional Information | [1]. Sakamoto T, et al. Pharmacological inhibition of Mint3 attenuates tumour growth, metastasis, and endotoxic shock. Commun Biol. 2021;4(1):1165. Published 2021 Oct 7. [2]. Arroyo AD, et al. Development of fluorinated naphthofluoresceins for Cerenkov imaging. J Fluor Chem. 2019;225:27-34. |
Frequently Asked Questions
What is the CAS number of Naphthofluorescein?
The CAS number of Naphthofluorescein is 61419-02-1.
What are the molecular formula and molecular weight of Naphthofluorescein?
Naphthofluorescein has molecular formula C28H16O5 and molecular weight 432.424 g/mol.
Is Naphthofluorescein hazardous?
Naphthofluorescein has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
What are the upstream and downstream products of Naphthofluorescein?
For Naphthofluorescein, Upstream Products: Phthalic anhydride, 1,6-Dihydroxynaphthalene; Downstream Products: Naphthofluorescein diacetate, 2-(11-Hydroxy-3-oxo-3H-dibenzo[c,h]xanthen-7-yl)benzoic 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. "Naphthofluorescein (CAS 61419-02-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1971721-8 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.