Ethyl eosin

曙红酒精

Also known as: Eosin ethyl ester, Eosin, alcohol soluble, Solvent Red 45, CI 45386, Ethyl eosin monosodium salt, Sodium 2,4,5,7-tetrabromo-9-(2-ethoxycarbonylphenyl)-6-oxoxanthen-3-olate, 2-(2,4,5,7-tetrabromo-6-hydroxy-3-oxo-3H-xanthen-9-yl)benzoic acid ethyl ester sodium salt

Ethyl eosin (CAS 21514-87-4) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C22H11Br4NaO5 and a molecular weight of 697.92600 g/mol. It is also known as Eosin ethyl ester, Eosin, alcohol soluble and Solvent Red 45. Key properties include a boiling point of 661.5ºC at 760mmHg and a flash point of 353.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 21514-87-4
Jingsj CID: J-34071-5
Molecular Formula: C₂₂H₁₁Br₄NaO₅
Chinese Name: 曙红酒精
Molecular Weight: 697.92600 g/mol
Category: Organic Compounds
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	661.5ºC at 760mmHg
Flash Point	353.8ºC
Exact Mass	693.72400
PSA	79.57000
LogP	7.93530
Vapor Pressure	4.2E-18mmHg at 25°C

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 Ethyl eosin?

The CAS number of Ethyl eosin is 21514-87-4.

What are the molecular formula and molecular weight of Ethyl eosin?

Ethyl eosin has molecular formula C22H11Br4NaO5 and molecular weight 697.92600 g/mol.

What are the upstream and downstream products of Ethyl eosin?

For Ethyl eosin, Upstream Products: Eosin Y free acid, Iodoethane.

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

Last updated: 8/21/2026

How to cite: Jingsj. "Ethyl eosin (CAS 21514-87-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-34071-5 (accessed 2026-10-28).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.