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Forsythoside B

Also known as: Forsythoside B, 98%, from Callicarpa kwangtungensis Chun, (2R,3R,4R,5R,6R)-2-((((2R,3R,4R)-3,4-Dihydroxy-4-(hydroxymethyl)tetrahydrofuran-2-yl)oxy)methyl)-6-(3,4-dihydroxyphenethoxy)-5-hydroxy-4-(((2S,3R,4R,5R,6S)-3,4,5-trihydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)tetrahydro-2H-pyran-3-yl (E)-3-(3,4-dihydroxyphenyl)acrylate, β-D-Glucopyranoside, 2-(3,4-dihydroxyphenyl)ethyl O-D-apio-β-D-furanosyl-(1→6)-O-[6-deoxy-α-L-mannopyranosyl-(1→3)]-, 4-[(2E)-3-(3,4-dihydroxyphenyl)-2-propenoate], Forsythoside B-RM, Chinensioside B

Forsythoside B (CAS 81525-13-5) is a compound in the Esters category listed in the Jingsj chemical database. It has the molecular formula C34H44O19 and a molecular weight of 756.702 g/mol. Key properties include a boiling point of 1040.3±65.0 °C at 760 mmHg, a density of 1.7±0.1 g/cm3 and a flash point of 323.9±27.8 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
81525-13-5
Jingsj CID
J-1971107-6
Molecular Formula
C34H44O19
Molecular Weight
756.702 g/mol
Category
Esters
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point1040.3±65.0 °C at 760 mmHg
Density1.7±0.1 g/cm3
Flash Point323.9±27.8 °C
Exact Mass756.247681
PSA304.21000
LogP1.87
Vapor Pressure0.0±0.3 mmHg at 25°C
Refractive Index1.696

Activity & Biological Data

TargetTNF-α NF-κB
Additional Information[1]. Jiang WL, et al. Forsythoside B protects against experimental sepsis by modulating inflammatory factors. Phytother Res. 2012 Jul;26(7):981-7. [2]. Jiang WL, et al. Neuroprotective efficacy and therapeutic window of Forsythoside B: in a rat model of cerebral ischemia and reperfusion injury. Eur J Pharmacol. 2010 Aug 25;640(1-3):75-81. [3]. Jiang WL, et al. Cardioprotection with forsythoside B in rat myocardial ischemia-reperfusion injury: relation to inflammation response. Phytomedicine. 2010 Jul;17(8-9):635-9.

Frequently Asked Questions

What is the CAS number of Forsythoside B?

The CAS number of Forsythoside B is 81525-13-5.

What are the molecular formula and molecular weight of Forsythoside B?

Forsythoside B has molecular formula C34H44O19 and molecular weight 756.702 g/mol.

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

Last updated:

How to cite: Jingsj. "Forsythoside B (CAS 81525-13-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1971107-6 (accessed 2026-11-06).

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