Pyronin B

派洛宁B

Also known as: 3,6-Bis(diethylamino)xanthylium chloride, CI 45010, [6-(Diethylamino)-3H-xanthen-3-ylidene]diethylammonium chloride, Pyronine B, Pyronin B ferric chloride complex

Pyronin B (CAS 2150-48-3) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C21H27ClN2O and a molecular weight of 358.905 g/mol. It is also known as 3,6-Bis(diethylamino)xanthylium chloride, CI 45010 and [6-(Diethylamino)-3H-xanthen-3-ylidene]diethylammonium chloride. Key property: a melting point of 174-176ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 2150-48-3
Jingsj CID: J-4794-4
Molecular Formula: C₂₁H₂₇ClN₂O
Chinese Name: 派洛宁B
Molecular Weight: 358.905 g/mol
Category: Organic Compounds
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	174-176ºC
Exact Mass	358.181183
PSA	19.39000
LogP	1.19980
Appearance	crystals \| Green needles or
Additional Property	Soluble in water, ethyl acetate, methyl acetate, ethylene glycol; slightly soluble in ethanol, methanol, methyl cellosolve

Activity & Biological Data

Additional Information	[1]. Yan Li, et al. Inhibition of the human respiratory syncytial virus small hydrophobic protein and structural variations in a bicelle environment. J Virol. 2014 Oct;88(20):11899-914. [2]. Zhou Z R, et al. Study of the Catalytic Effects of Trace Titanium on Oxidation of Pyronin B with Hydrogen Peroxide and Its Application[C]//Advanced Materials Research. Trans Tech Publications Ltd, 2013, 602: 1233-1237.

Additional Information

[1]. Yan Li, et al. Inhibition of the human respiratory syncytial virus small hydrophobic protein and structural variations in a bicelle environment. J Virol. 2014 Oct;88(20):11899-914. [2]. Zhou Z R, et al. Study of the Catalytic Effects of Trace Titanium on Oxidation of Pyronin B with Hydrogen Peroxide and Its Application[C]//Advanced Materials Research. Trans Tech Publications Ltd, 2013, 602: 1233-1237.

Frequently Asked Questions

What is the CAS number of Pyronin B?

The CAS number of Pyronin B is 2150-48-3.

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

Pyronin B has molecular formula C21H27ClN2O and molecular weight 358.905 g/mol.

What are the upstream and downstream products of Pyronin B?

For Pyronin B, Upstream Products: Formic Acid, Glycerol, 3-(Diethylamino)phenol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "Pyronin B (CAS 2150-48-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-4794-4 (accessed 2026-10-28).

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