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Heterocyclic building blocks

Trilan

Also known as 4,5,6-Trichloro-2(3H)-benzoxazolone, 4,5,6-trichloro-3H-1,3-benzoxazol-2-one, 4,5,6-trichloro-2,3-dihydro-1,3-benzoxazol-2-one

CAS 50995-94-3Formula C7H2Cl3NO2Molar mass 238.46 g/mol
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Trilan chemical structure, C7H2Cl3NO2, CAS 50995-94-3
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
50995-94-3
Formula
C7H2Cl3NO2
Molar mass
238.46 g/mol
HS code
293499
Category
Heterocyclic building blocks

What is Trilan?

Plain description, key identifiers and synonyms

Trilan is a chemical substance with the molecular formula C7H2Cl3NO2 and a molar mass of 238.46 g/mol. Its CAS registry number is 50995-94-3. The IUPAC name is 4,5,6-trichloro-3H-1,3-benzoxazol-2-one.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
4,5,6-trichloro-3H-1,3-benzoxazol-2-one
CAS number
50995-94-3 CAS number cross-checked
Molecular formula
C7H2Cl3NO2
MDL number
MFCD00460200
InChIKey
OOXHZCGBJSGVTN-UHFFFAOYSA-N
InChI
InChI=1S/C7H2Cl3NO2/c8-2-1-3-6(5(10)4(2)9)11-7(12)13-3/h1H,(H,11,12)
SMILES (canonical and isomeric)
C1=C2C(=C(C(=C1Cl)Cl)Cl)NC(=O)O2

Synonyms

  • 4,5,6-Trichloro-2(3H)-benzoxazolone
  • 4,5,6-trichloro-3H-1,3-benzoxazol-2-one
  • 4,5,6-trichloro-2,3-dihydro-1,3-benzoxazol-2-one
  • 4,5,6-Trichloro-1,3-benzoxazol-2(3H)-one
  • 4,5,6-Trichlorobenzo[d]oxazol-2-ol
  • 4,5,6-Trichlorobenzoxazolinone
  • C7H2Cl3NO2
  • 4,5,6-Trichloro-2(3H)-benzoxazolinone
  • trichlorobenzoxazolinone
  • Cambridge id 5104302
  • 2(3H)-benzoxazolone, 4,5,6-trichloro-
  • 4,5,6-Trichloro-2-benzoxazolinone
  • 4,5,6-trichloro-3-hydrobenzoxazol-2-one
  • 4,5,6-Trichloro-1,3-benzoxazol-2(3H)-one #

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
238.46 g/molcalc.
Exact mass
236.9151 Dacalc.
LogP (octanol/water)
3.08calc.
Topological polar surface area
46 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
0calc.
Heavy atoms
13calc.
Rings
2calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0calc.
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, O=c1[nH]c2ccccc2o1

O=c1[nH]c2ccccc2o1

2 rings, 10 atoms, the 2(3H)-Benzoxazolone ring system.

958 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.

Trilan suppliers

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

Frequently asked questions

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

What is Trilan?

Trilan is a chemical substance with the molecular formula C7H2Cl3NO2 and a molar mass of 238.46 g/mol. Its CAS registry number is 50995-94-3. The IUPAC name is 4,5,6-trichloro-3H-1,3-benzoxazol-2-one.

What is the CAS number of Trilan?

The CAS registry number of Trilan is 50995-94-3.

What is the molecular formula and weight of Trilan?

The molecular formula of Trilan is C7H2Cl3NO2 and its molar mass is 238.46 g/mol.

What is Trilan used for?

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

Is Trilan hazardous?

No GHS hazard classification for Trilan 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 Trilan?

Trilan 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 Trilan?

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

What is the price of Trilan?

Suppliers quote Trilan 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 Trilan

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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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