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Hexadimethrine bromide

Also known as: Polybrene, Sequa-brene, 6,3-Ionene bromide, 1,5-Dimethyl-1,5-diazaundecamethylene polymethobromide, Poly(N,N,N',N'-tetramethyl-N-trimethylenehexamethylenediammonium dibromide), Poly((dimethyliminio)hexamethylene(dimethylimino)trimethylene dibromide)

Hexadimethrine bromide (CAS 28728-55-4) is a compound in the Organohalogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C15H36Br2N2 and a molecular weight of 404.27 g/mol. Key properties include a boiling point of 209.5ºC at 760 mmHg and a flash point of 73.9ºC. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
28728-55-4
Jingsj CID
J-12956-3
Molecular Formula
C15H36Br2N2
Molecular Weight
404.27 g/mol
Category
Organohalogen Compounds
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point209.5ºC at 760 mmHg
Flash Point73.9ºC
Vapor Pressure0.202mmHg at 25°C

GHS Safety & Compliance

IrritantSignal word: Warning
  • H302 — Harmful if swallowed

Activity & Biological Data

Additional Information[1]. Lin P, et al. Polybrene inhibits human mesenchymal stem cell proliferation during lentiviral transduction. PLoS One. 2011;6(8):e23891.

Frequently Asked Questions

What is the CAS number of Hexadimethrine bromide?

The CAS number of Hexadimethrine bromide is 28728-55-4.

What are the molecular formula and molecular weight of Hexadimethrine bromide?

Hexadimethrine bromide has molecular formula C15H36Br2N2 and molecular weight 404.27 g/mol.

Is Hexadimethrine bromide hazardous?

Hexadimethrine bromide has GHS signal word Warning and hazard statements H302 — Harmful if swallowed.

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

Last updated:

How to cite: Jingsj. "Hexadimethrine bromide (CAS 28728-55-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-12956-3 (accessed 2026-11-06).

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