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Acid, base and phase-transfer catalysts

Pentamethonium

Also known as Pentamethonum, Pentamethonium ion, Pentamethonium cation

CAS 2365-25-5Formula C11H28N2+2Molar mass 188.36 g/mol
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Pentamethonium chemical structure, C11H28N2+2, CAS 2365-25-5
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
2365-25-5
Formula
C11H28N2+2
Molar mass
188.36 g/mol
HS code
292390
Category
Acid, base and phase-transfer catalysts

What is Pentamethonium?

Plain description, key identifiers and synonyms

Pentamethonium is a quarternary ammonium cation that is cadaverine in which the terminal amino hydrogens are substituted methyl groups. Its bromide and iodide salt exhibits ganglionic blocking activity and used in the treatment of hypertension. It has a role as a vasodilator agent and an antihypertensive agent. It is functionally related to a cadaverine.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
trimethyl-[5-(trimethylazaniumyl)pentyl]azanium
CAS number
2365-25-5 CAS number cross-checked
Molecular formula
C11H28N2+2
UNII
521DS2D2HB
InChIKey
XUSPWDAHGXSTHS-UHFFFAOYSA-N
InChI
InChI=1S/C11H28N2/c1-12(2,3)10-8-7-9-11-13(4,5)6/h7-11H2,1-6H3/q+2
SMILES (canonical and isomeric)
C[N+](C)(C)CCCCC[N+](C)(C)C

Synonyms

  • Pentamethonum
  • Pentamethonium ion
  • Pentamethonium cation
  • N,N,N,N',N',N'-Hexamethyl-1,5-pentanediaminium
  • pentamethylenebis(trimethylammonium)
  • trimethyl-[5-(trimethylazaniumyl)pentyl]azanium
  • 1,5-pentanediylbis(trimethylaminium)
  • Xuspwdahgxsths-uhfffaoysa-
  • N,N,N,N',N',N'-hexamethylpentane-1,5-bis(aminium)
  • trimethyl-(5-trimethylazaniumylpentyl)azanium dibromide
  • N(1),N(1),N(1),N(5),N(5),N(5)-hexamethylpentane-1,5-bis(aminium)
  • N~1~,N~1~,N~1~,N~5~,N~5~,N~5~-Hexamethylpentane-1,5-bis(aminium)

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
188.36 g/molcalc.
Exact mass
188.2242 Dacalc.
LogP (octanol/water)
1.57calc.
Topological polar surface area
0 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
0calc.
Rotatable bonds
6calc.
Heavy atoms
13calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
1calc.
Formal charge
2calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Pentamethonium suppliers

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Pentamethonium price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Roles

  • antihypertensive agent
  • cardiovascular drug
  • pharmaceutical
  • vasodilator agent

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Pentamethonium is traded under.

HS 2923.90Indicative HS code

Quaternary ammonium salts and hydroxides whether or not chemically defined not elsewhere classified…

World exports in 2024
$1.07B
+14.4% vs 2023, imports $1.16B
2019 to 2024
Top exporters
  1. China36.7%
  2. United States14.2%
  3. Netherlands9.4%
Top importers
  1. South Korea10.7%
  2. Germany10.1%
  3. United States9.9%
Reported customs values in USD, not prices.Full trade data

The HS code shown for Pentamethonium is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Pentamethonium, based on the data on this page

What is Pentamethonium?

Pentamethonium is a quarternary ammonium cation that is cadaverine in which the terminal amino hydrogens are substituted methyl groups. Its bromide and iodide salt exhibits ganglionic blocking activity and used in the treatment of hypertension. It has a role as a vasodilator agent and an antihypertensive agent.

What is the CAS number of Pentamethonium?

The CAS registry number of Pentamethonium is 2365-25-5.

What is the molecular formula and weight of Pentamethonium?

The molecular formula of Pentamethonium is C11H28N2+2 and its molar mass is 188.36 g/mol.

What is Pentamethonium used for?

Known uses and roles of Pentamethonium include antihypertensive agent, cardiovascular drug, pharmaceutical and vasodilator agent.

Is Pentamethonium hazardous?

No GHS hazard classification for Pentamethonium is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of Pentamethonium?

Pentamethonium is usually classified under HS code 292390 (Quaternary ammonium salts and hydroxides, lecithins and other phosphoaminolipids…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Pentamethonium?

Post a free request on CompoundList and suppliers of Pentamethonium will send you quotes. Your contact details stay private until you accept a quote.

What is the price of Pentamethonium?

Suppliers quote Pentamethonium on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Pentamethonium

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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