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Acid, base and phase-transfer catalysts

Oxa-22

Also known as Oxa 22, cis-2-Methyl-5-trimethylammoniummethyl-1,3-oxathiolane iodide, Trimethyl-[[(2S,5S)-2-methyl-1,3-oxathiolan-5-yl]methyl]azanium, iodide

CAS 76541-57-6Formula C8H18INOSMolar mass 303.21 g/mol
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Oxa-22 chemical structure, C8H18INOS, CAS 76541-57-6
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
76541-57-6
Formula
C8H18INOS
Molar mass
303.21 g/mol
HS code
293499
Category
Acid, base and phase-transfer catalysts

What is Oxa-22?

Plain description, key identifiers and synonyms

Oxa-22 is a chemical substance with the molecular formula C8H18INOS and a molar mass of 303.21 g/mol. Its CAS registry number is 76541-57-6. The IUPAC name is trimethyl-[[(2S,5S)-2-methyl-1,3-oxathiolan-5-yl]methyl]azanium iodide.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
trimethyl-[[(2S,5S)-2-methyl-1,3-oxathiolan-5-yl]methyl]azanium iodide
CAS number
76541-57-6 CAS number cross-checked
Molecular formula
C8H18INOS
InChIKey
TWNAKQKXXMGYQT-WSZWBAFRSA-M
InChI
InChI=1S/C8H18NOS.HI/c1-7-10-8(6-11-7)5-9(2,3)4;/h7-8H,5-6H2,1-4H3;1H/q+1;/p-1/t7-,8-;/m0./s1
Canonical SMILES
CC1OC(C[N+](C)(C)C)CS1.[I-]
Isomeric SMILES
C[C@H]1O[C@H](CS1)C[N+](C)(C)C.[I-]

Synonyms

  • Oxa 22
  • cis-2-Methyl-5-trimethylammoniummethyl-1,3-oxathiolane iodide
  • Trimethyl-[[(2S,5S)-2-methyl-1,3-oxathiolan-5-yl]methyl]azanium, iodide
  • N,N,N-Trimethyl[(2S,5S)-2-methyl-1,3-oxathiolan-5-yl]methanaminium iodide

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
303.21 g/molcalc.
Exact mass
303.0154 Dacalc.
LogP (octanol/water)
-1.83calc.
Topological polar surface area
9.23 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
2calc.
Heavy atoms
12calc.
Rings
1calc.
Aromatic rings
0calc.
Fraction sp3 carbons
1calc.
Formal charge
0calc.
Stereocentres
2calc.
Components
2calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, C1CSCO1

C1CSCO1

1 ring, 5 atoms, the 1,3-Oxathiolane ring system.

77 other chemicals share this scaffold

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.

Oxa-22 suppliers

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Oxa-22 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

Applications are not documented for this substance yet. Suppliers often describe uses on their product pages, linked in the suppliers list above.

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 Oxa-22 is traded under.

HS 2934.99Indicative HS code

Nucleic acids and their salts, other heterocyclic compounds, not elsewhere classified in heading 2934

World exports in 2024
$26.7B
+15.0% vs 2023, imports $26.3B
2019 to 2024
Top exporters
  1. Ireland26.3%
  2. China15.7%
  3. Singapore10.3%
Top importers
  1. United States24.5%
  2. Germany23.1%
  3. Japan4.5%
Reported customs values in USD, not prices.Full trade data

The HS code shown for Oxa-22 is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Oxa-22, based on the data on this page

What is Oxa-22?

Oxa-22 is a chemical substance with the molecular formula C8H18INOS and a molar mass of 303.21 g/mol. Its CAS registry number is 76541-57-6. The IUPAC name is trimethyl-[[(2S,5S)-2-methyl-1,3-oxathiolan-5-yl]methyl]azanium iodide.

What is the CAS number of Oxa-22?

The CAS registry number of Oxa-22 is 76541-57-6.

What is the molecular formula and weight of Oxa-22?

The molecular formula of Oxa-22 is C8H18INOS and its molar mass is 303.21 g/mol.

Is Oxa-22 hazardous?

No GHS hazard classification for Oxa-22 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 Oxa-22?

Oxa-22 is usually classified under HS code 293499 (Nucleic acids and their salts, whether or not chemically defined, other heterocyclic…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Oxa-22?

Post a free request on CompoundList and suppliers of Oxa-22 will send you quotes. Your contact details stay private until you accept a quote.

What is the price of Oxa-22?

Suppliers quote Oxa-22 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 Oxa-22

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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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