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Heterocyclic building blocks

Carboxazole

Also known as Carbamic acid, [5-(1,1-dimethylethyl)-3-isoxazolyl]-, methyl ester, Methyl 5-tert-butyl-1,2-oxazol-3-ylcarbamate, methyl N-(5-tert-butyl-1,2-oxazol-3-yl)carbamate

CAS 55808-13-4Formula C9H14N2O3Molar mass 198.22 g/mol
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Carboxazole chemical structure, C9H14N2O3, CAS 55808-13-4
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
55808-13-4
Formula
C9H14N2O3
Molar mass
198.22 g/mol
HS code
293499
Category
Heterocyclic building blocks

What is Carboxazole?

Plain description, key identifiers and synonyms

Carboxazole is a chemical substance with the molecular formula C9H14N2O3 and a molar mass of 198.22 g/mol. Its CAS registry number is 55808-13-4. The IUPAC name is methyl N-(5-tert-butyl-1,2-oxazol-3-yl)carbamate.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
methyl N-(5-tert-butyl-1,2-oxazol-3-yl)carbamate
CAS number
55808-13-4 CAS number cross-checked
Molecular formula
C9H14N2O3
UNII
HWU9B4W5EA
InChIKey
ZGUYPJJFHYFLBV-UHFFFAOYSA-N
InChI
InChI=1S/C9H14N2O3/c1-9(2,3)6-5-7(11-14-6)10-8(12)13-4/h5H,1-4H3,(H,10,11,12)
SMILES (canonical and isomeric)
CC(C)(C)C1=CC(=NO1)NC(=O)OC

Synonyms

  • Carbamic acid, [5-(1,1-dimethylethyl)-3-isoxazolyl]-, methyl ester
  • Methyl 5-tert-butyl-1,2-oxazol-3-ylcarbamate
  • methyl N-(5-tert-butyl-1,2-oxazol-3-yl)carbamate
  • Methyl N-(5-tert-butyl-3-isoxazolyl)carbamate
  • Carbamic acid, (5-(1,1-dimethylethyl)-3-isoxazolyl)-, methyl ester
  • Carbamic acid, N-(5-(1,1-dimethylethyl)-3-isoxazolyl)-, methyl ester
  • Methyl (5-(1,1-Dimethylethyl)-3-isoxazolyl)carbamate
  • Methyl [5-(1,1-Dimethylethyl)-3-isoxazolyl]carbamate
  • methyl (5-(tert-butyl)isoxazol-3-yl)carbamate
  • methyl 5-t-butyl-3-isoxazolylcarbamate
  • methyl 5-t-butyl-3-isoxazolyl-carbamate
  • methyl N-(5-t-butyl-3-isoxazolyl)carbamate
  • Methyl (5-tert-butyl-1,2-oxazol-3-yl)carbamate

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
198.22 g/molcalc.
Exact mass
198.1004 Dacalc.
LogP (octanol/water)
2.15calc.
Topological polar surface area
64.36 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
4calc.
Rotatable bonds
1calc.
Heavy atoms
14calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.56calc.
Formal charge
0calc.
Stereocentres
0calc.
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, c1cnoc1

c1cnoc1

1 ring, 5 atoms, the Isoxazole ring system.

5,681 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.

Carboxazole suppliers

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Carboxazole 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

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 Carboxazole 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 Carboxazole is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

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

What is Carboxazole?

Carboxazole is a chemical substance with the molecular formula C9H14N2O3 and a molar mass of 198.22 g/mol. Its CAS registry number is 55808-13-4. The IUPAC name is methyl N-(5-tert-butyl-1,2-oxazol-3-yl)carbamate.

What is the CAS number of Carboxazole?

The CAS registry number of Carboxazole is 55808-13-4.

What is the molecular formula and weight of Carboxazole?

The molecular formula of Carboxazole is C9H14N2O3 and its molar mass is 198.22 g/mol.

What is Carboxazole used for?

Known uses and roles of Carboxazole include building blocks in research and laboratory and screening compounds in research and laboratory.

Is Carboxazole hazardous?

No GHS hazard classification for Carboxazole 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 Carboxazole?

Carboxazole 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 Carboxazole?

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

What is the price of Carboxazole?

Suppliers quote Carboxazole 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 Carboxazole

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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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