CompoundList
Sign in
Chlorides and other halides

Chloranium

Also known as chloronium, chloronium ion, H2Cl(+)

CAS 36658-55-6Formula H2Cl+Molar mass 37.47 g/mol
Get quotes Safety data
Chloranium chemical structure, H2Cl+, CAS 36658-55-6
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
36658-55-6
Formula
H2Cl+
Molar mass
37.47 g/mol
HS code
282739
Category
Chlorides and other halides

What is Chloranium?

Plain description, key identifiers and synonyms

Chloronium is an onium cation. It is a conjugate acid of a hydrogen chloride.

Chloranium is an onium ion of chlorine, protonated hydrogen chloride.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
chloranium
CAS number
36658-55-6 CAS number cross-checkedOther or deprecated CAS: 24203-47-2
Molecular formula
H2Cl+
InChIKey
IGJWHVUMEJASKV-UHFFFAOYSA-N
InChI
InChI=1S/ClH2/h1H2/q+1
SMILES (canonical and isomeric)
[ClH2+]

Synonyms

  • chloronium
  • chloronium ion
  • H2Cl(+)
  • [ClH2](+)

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
37.47 g/molcalc.
Exact mass
36.984 Dacalc.
LogP (octanol/water)
-0.54calc.
Topological polar surface area
0 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
0calc.
Rotatable bonds
0calc.
Heavy atoms
1calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0calc.
Formal charge
1calc.
Stereocentres
0calc.

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.

Chloranium suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

No supplier listings yet

Post one free request and suppliers who make or trade Chloranium can send you quotes. Your contact details stay private until you accept a quote.

Request quotesSell this chemical

Chloranium price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

Get latest price

Uses and applications

What the substance is used for, by industry and function

Roles

  • animal metabolite
  • eukaryotic metabolite
  • mammalian metabolite
  • metabolite
  • mouse metabolite

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 Chloranium is traded under.

HS 2827.39Indicative HS code

Chlorides, other than of ammonium, calcium, magnesium, aluminium and nickel

World exports in 2024
$802M
+0.1% vs 2023, imports $802M
2019 to 2024
Top exporters
  1. United States16.4%
  2. China16.3%
  3. Germany13.6%
Top importers
  1. South Korea15.0%
  2. United States13.0%
  3. France * partner reported6.8%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

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

What is Chloranium?

Chloronium is an onium cation. It is a conjugate acid of a hydrogen chloride.

What is the CAS number of Chloranium?

The CAS registry number of Chloranium is 36658-55-6. Other or deprecated CAS numbers: 24203-47-2.

What is the molecular formula and weight of Chloranium?

The molecular formula of Chloranium is H2Cl+ and its molar mass is 37.47 g/mol.

What is Chloranium used for?

Known uses and roles of Chloranium include animal metabolite, eukaryotic metabolite, mammalian metabolite, metabolite and mouse metabolite.

Is Chloranium hazardous?

No GHS hazard classification for Chloranium 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 Chloranium?

Chloranium is usually classified under HS code 282739 (Chlorides, chloride oxides and chloride hydroxides, bromides and bromide oxides, iodides…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Chloranium?

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

What is the price of Chloranium?

Suppliers quote Chloranium 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 Chloranium

Get quotes for Chloranium

Post one free request with your grade, quantity and destination. Matching suppliers send quotes you can compare side by side.
Post a request Sell Chloranium
Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
Embed this structure on your websiteShow code

Paste this code into your page to show the 2D structure of Chloranium with a 3D view, its CAS number where known and a link back to this page. Free to use with the link kept.

<iframe src="https://www.compoundlist.com/embed/structure/chloranium-36658-55-6" title="Chloranium structure on CompoundList" width="360" height="420" style="border:1px solid #E7E2DA;border-radius:12px;max-width:100%" loading="lazy" referrerpolicy="strict-origin-when-cross-origin"></iframe>
Preview the embed

Explore more in Chlorides and other halides or HS code 282739

Price on request
Free quotes, contact stays private
Get quotes