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Cosmetic colorants and hair dyes

Hydroxybenzomorpholine

Also known as 3,4-Dihydro-2H-1,4-benzoxazin-6-ol, 6-Hydroxybenzomorpholine, 2H-1,4-Benzoxazin-6-ol, 3,4-dihydro-

CAS 26021-57-8Formula C8H9NO2Molar mass 151.17 g/molEC 247-415-5
GHS signal word: Warning. Pictograms: Harmful or irritant, Hazardous to the environment 4 suppliers listed
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Hydroxybenzomorpholine chemical structure, C8H9NO2, CAS 26021-57-8
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
26021-57-8
Formula
C8H9NO2
Molar mass
151.17 g/mol
EC number
247-415-5
HS code
293499
Category
Cosmetic colorants and hair dyes

What is Hydroxybenzomorpholine?

Plain description, key identifiers and synonyms

Hydroxybenzomorpholine is a chemical substance with the molecular formula C8H9NO2 and a molar mass of 151.17 g/mol. Its CAS registry number is 26021-57-8. The IUPAC name is 3,4-dihydro-2H-1,4-benzoxazin-6-ol.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
3,4-dihydro-2H-1,4-benzoxazin-6-ol
CAS number
26021-57-8 CAS number cross-checked
EC number
247-415-5
Molecular formula
C8H9NO2
UNII
77OXT3492A
MDL number
MFCD00600394
INCI name
HYDROXYBENZOMORPHOLINE
InChIKey
HWWIVWKTKZAORO-UHFFFAOYSA-N
InChI
InChI=1S/C8H9NO2/c10-6-1-2-8-7(5-6)9-3-4-11-8/h1-2,5,9-10H,3-4H2
SMILES (canonical and isomeric)
C1COC2=C(N1)C=C(C=C2)O

Synonyms

  • 3,4-Dihydro-2H-1,4-benzoxazin-6-ol
  • 6-Hydroxybenzomorpholine
  • 2H-1,4-Benzoxazin-6-ol, 3,4-dihydro-
  • 3,4-Dihydro-2H-benzo-(b)(1,4)oxazin-6-ol
  • 3,4-Dihydro-6-hydroxy-1,4(2H)-benzoxazine
  • 3,4-Dihydro-2H-benzo[b][1,4]oxazin-6-ol
  • BAS 02083762
  • 3,4-Dihydro-2H-benzo[1,4]oxazin-6-ol
  • 6-hydroxy benzomorpholine
  • 3,4-Dihydro-2H-1,4-benzoxazin-6-ol, AldrichCPR

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
151.17 g/molcalc.
Exact mass
151.0633 Dacalc.
LogP (octanol/water)
1.2calc.
Topological polar surface area
41.49 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
0calc.
Heavy atoms
11calc.
Rings
2calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.25calc.
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)NCCO2

c1ccc2c(c1)NCCO2

2 rings, 10 atoms, the 3,4-Dihydro-2H-1,4-benzoxazine ring system.

1,234 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H302Harmful if swallowed.
  • H319Causes serious eye irritation.
  • H411Toxic to aquatic life with long lasting effects.
Precautionary statements (11)
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P270Do not eat, drink or smoke when using this product.
  • P273Avoid release to the environment.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P317If swallowed: Get medical help.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P330Rinse mouth.
  • P337 + P317If eye irritation persists: Get medical help.
  • P391Collect spillage.
  • P501Dispose of contents and container in accordance with local regulations.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

Hydroxybenzomorpholine suppliers

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

All 4 suppliers
4 of 4 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

4 suppliers in 2 countries

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Hydroxybenzomorpholine 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

Use classes: Cosmetics.

Cosmetic ingredient, INCI name HYDROXYBENZOMORPHOLINE(hair dyeing)

Functional uses

  • Dye

Cosmetic functions

  • Hair dyeing

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • EU cosmetic ingredient inventory
  • EU Cosmetics Regulation Annex III, restricted in cosmetics
    Name: HYDROXYBENZOMORPHOLINE, Ref no: 230, Annex ref: III/230

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Hydroxybenzomorpholine 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 Hydroxybenzomorpholine is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

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

What is Hydroxybenzomorpholine?

Hydroxybenzomorpholine is a chemical substance with the molecular formula C8H9NO2 and a molar mass of 151.17 g/mol. Its CAS registry number is 26021-57-8. The IUPAC name is 3,4-dihydro-2H-1,4-benzoxazin-6-ol.

What is the CAS number of Hydroxybenzomorpholine?

The CAS registry number of Hydroxybenzomorpholine is 26021-57-8.

What is the molecular formula and weight of Hydroxybenzomorpholine?

The molecular formula of Hydroxybenzomorpholine is C8H9NO2 and its molar mass is 151.17 g/mol.

What is Hydroxybenzomorpholine used for?

Use classes: Cosmetics.

Is Hydroxybenzomorpholine hazardous?

Hydroxybenzomorpholine carries the GHS signal word "Warning". Main hazards: harmful if swallowed, causes serious eye irritation, toxic to aquatic life with long lasting effects. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Hydroxybenzomorpholine?

Hydroxybenzomorpholine 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 Hydroxybenzomorpholine?

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

What is the price of Hydroxybenzomorpholine?

Suppliers quote Hydroxybenzomorpholine 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 Hydroxybenzomorpholine

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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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