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Heterocyclic building blocks

Phenoxazine

Also known as 10H-Phenoxazine, Phenazoxine, 5,6-Dibenzo-1,4-oxazine

CAS 135-67-1Formula C12H9NOMolar mass 183.21 g/molEC 205-210-8
32 suppliers listed
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Phenoxazine chemical structure, C12H9NO, CAS 135-67-1
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
135-67-1
Formula
C12H9NO
Molar mass
183.21 g/mol
EC number
205-210-8
HS code
293499
Category
Heterocyclic building blocks

What is Phenoxazine?

Plain description, key identifiers and synonyms

10H-phenoxazine is a member of the class of phenoxazines that is morpholine which is ortho-fused to two benzene rings at positions 2-3 and 5-6. It has a role as a ferroptosis inhibitor and a radical scavenger.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
10H-phenoxazine
CAS number
135-67-1 CAS number cross-checked
EC number
205-210-8
Molecular formula
C12H9NO
UNII
C2ZWT499SG
MDL number
MFCD00005014
InChIKey
TZMSYXZUNZXBOL-UHFFFAOYSA-N
InChI
InChI=1S/C12H9NO/c1-3-7-11-9(5-1)13-10-6-2-4-8-12(10)14-11/h1-8,13H
SMILES (canonical and isomeric)
C1=CC=C2C(=C1)NC3=CC=CC=C3O2

Synonyms

  • 10H-Phenoxazine
  • Phenazoxine
  • 5,6-Dibenzo-1,4-oxazine
  • 5,4-oxazine
  • Phenoxazine, 97%
  • Phenotazine
  • 10H-dibenzo[b,e][1,4]oxazine
  • 2,3:5,6-Dibenzo-1,4-oxazine
  • 2,3, 5,6-Dibenzo-1,4-oxazine
  • Phenoxazine, >=99%, purified by sublimation
  • doi:10.14272/TZMSYXZUNZXBOL-UHFFFAOYSA-N.1

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
183.21 g/molcalc.
Exact mass
183.0684 Dacalc.
LogP (octanol/water)
3.54calc.
Topological polar surface area
21.26 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
0calc.
Heavy atoms
14calc.
Rings
3calc.
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, c1ccc2c(c1)Nc1ccccc1O2

c1ccc2c(c1)Nc1ccccc1O2

3 rings, 14 atoms. This chemical is the scaffold itself.

118 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.

Phenoxazine suppliers

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

All 32 suppliers
30 of 30 offers

Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

32 suppliers in 8 countries

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Phenoxazine 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.

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Uses and applications

What the substance is used for, by industry and function

Roles

  • antioxidant
  • ferroptosis inhibitor
  • radical scavenger

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

Frequently asked questions

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

What is Phenoxazine?

10H-phenoxazine is a member of the class of phenoxazines that is morpholine which is ortho-fused to two benzene rings at positions 2-3 and 5-6. It has a role as a ferroptosis inhibitor and a radical scavenger.

What is the CAS number of Phenoxazine?

The CAS registry number of Phenoxazine is 135-67-1.

What is the molecular formula and weight of Phenoxazine?

The molecular formula of Phenoxazine is C12H9NO and its molar mass is 183.21 g/mol.

What is Phenoxazine used for?

Known uses and roles of Phenoxazine include building blocks in research and laboratory, screening compounds in research and laboratory, antioxidant, ferroptosis inhibitor and radical scavenger.

Is Phenoxazine hazardous?

No GHS hazard classification for Phenoxazine 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 Phenoxazine?

Phenoxazine 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 Phenoxazine?

CompoundList lists 32 suppliers of Phenoxazine in China, United States, Germany, Canada and 4 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Phenoxazine in India?

1 supplier in India list Phenoxazine on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Phenoxazine?

Suppliers quote Phenoxazine 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 Phenoxazine

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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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