Hispidin

牛奶树碱

Also known as: 6-(3,4-Dihydroxystyryl)-4-hydroxy-2-pyrone, 6-(3,4-Dihydroxystyryl)-4-hydroxy-2H-pyran-2-one, 6-[(1E)-2-(3,4-Dihydroxyphenyl)ethenyl]-4-hydroxy-2H-pyran-2-one, (E)-6-[2-(3,4-Dihydroxyphenyl)ethenyl]-4-hydroxy-2H-pyran-2-one, Hispidine, 4-hydroxy-6-(3,4-dihydroxystyryl)-2-pyrone

Hispidin (CAS 555-55-5) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C13H10O5 and a molecular weight of 246.21500 g/mol. It is also known as 6-(3,4-Dihydroxystyryl)-4-hydroxy-2-pyrone, 6-(3,4-Dihydroxystyryl)-4-hydroxy-2H-pyran-2-one and 6-[(1E)-2-(3,4-Dihydroxyphenyl)ethenyl]-4-hydroxy-2H-pyran-2-one. Key properties include a melting point of 312-315ºC, a boiling point of 554.2ºC at 760 mmHg, a density of 1.657g/cm3 and a flash point of 220.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 555-55-5
Jingsj CID: J-1975427-5
Molecular Formula: C₁₃H₁₀O₅
Chinese Name: 牛奶树碱
Molecular Weight: 246.21500 g/mol
Category: Organic Bases
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	312-315ºC
Boiling Point	554.2ºC at 760 mmHg
Density	1.657g/cm3
Flash Point	220.1ºC

Frequently Asked Questions

What is the CAS number of Hispidin?

The CAS number of Hispidin is 555-55-5.

What are the molecular formula and molecular weight of Hispidin?

Hispidin has molecular formula C13H10O5 and molecular weight 246.21500 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "Hispidin (CAS 555-55-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1975427-5 (accessed 2026-10-25).

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