4',5'-Dinitrofluorescein

Also known as: C.I. Solvent Orange 16, Solvent Orange 16, CI 45396, 4',5'-Dinitro-3',6'-dihydroxyspiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one, 3',6'-Dihydroxy-4',5'-dinitrospiro[2-benzofuran-3,9'-xanthene]-1-one, Eosine Acid 3G, C.I. 45396

4',5'-Dinitrofluorescein (CAS 24545-86-6) is a compound in the Nitrogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C20H10N2O9 and a molecular weight of 422.30100 g/mol. Key properties include a melting point of 185ºC, a boiling point of 654.2ºC at 760 mmHg, a density of 1.83g/cm3 and a flash point of 349.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 24545-86-6
Jingsj CID: J-12086-7
Molecular Formula: C₂₀H₁₀N₂O₉
Molecular Weight: 422.30100 g/mol
Category: Nitrogen Compounds
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	185ºC
Boiling Point	654.2ºC at 760 mmHg
Density	1.83g/cm3
Flash Point	349.5ºC
Exact Mass	422.03900
PSA	167.63000
LogP	4.52860
Vapor Pressure	1.02E-17mmHg at 25°C
Refractive Index	1.821

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 4',5'-Dinitrofluorescein?

The CAS number of 4',5'-Dinitrofluorescein is 24545-86-6.

What are the molecular formula and molecular weight of 4',5'-Dinitrofluorescein?

4',5'-Dinitrofluorescein has molecular formula C20H10N2O9 and molecular weight 422.30100 g/mol.

What are the upstream and downstream products of 4',5'-Dinitrofluorescein?

For 4',5'-Dinitrofluorescein, Upstream Products: Fluorescein, 2-(2,4-Dihydroxybenzoyl)benzoic acid, Resorcinol.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "4',5'-Dinitrofluorescein (CAS 24545-86-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-12086-7 (accessed 2026-11-06).

Data for reference only; verify product details with suppliers before purchase.