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Aromatic building blocks

1-Hydroxy-2-naphthaldehyde

Also known as 1-hydroxynaphthalene-2-carbaldehyde, 1-Naphthol-2-carboxaldehyde, 1-hydroxy-2-naphtoaldehyde

CAS 574-96-9Formula C11H8O2Molar mass 172.18 g/molEC 679-991-2
GHS signal word: Warning. Pictograms: Harmful or irritant, Hazardous to the environment 3 suppliers listed
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1-Hydroxy-2-naphthaldehyde chemical structure, C11H8O2, CAS 574-96-9
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
574-96-9
Formula
C11H8O2
Molar mass
172.18 g/mol
EC number
679-991-2
HS code
291249
Category
Aromatic building blocks

What is 1-Hydroxy-2-naphthaldehyde?

Plain description, key identifiers and synonyms

1-hydroxy-2-naphthaldehyde is a member of the class of naphthaldehydes that is naphthalene-2-carbaldehyde substituted by a hydroxy group at position 1. It is a member of naphthols and a member of naphthaldehydes.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
1-hydroxynaphthalene-2-carbaldehyde
CAS number
574-96-9 CAS number cross-checked
EC number
679-991-2
Molecular formula
C11H8O2
MDL number
MFCD00092325
InChIKey
OITQDWKMIPXGFL-UHFFFAOYSA-N
InChI
InChI=1S/C11H8O2/c12-7-9-6-5-8-3-1-2-4-10(8)11(9)13/h1-7,13H
SMILES (canonical and isomeric)
C1=CC=C2C(=C1)C=CC(=C2O)C=O

Synonyms

  • 1-hydroxynaphthalene-2-carbaldehyde
  • 1-Naphthol-2-carboxaldehyde
  • 1-hydroxy-2-naphtoaldehyde
  • (z)-2-(hydroxylmethylene)naphthalen-1(2h)-one
  • 2-Naphthalenecarboxaldehyde, 1-hydroxy-
  • 2-formyl-1-naphtol
  • 2-formyl-1-naphthol
  • 1-hydroxy-naphthalene-2-carbaldehyde
  • 1-Hydroxy-2-naphthaldehyde, AldrichCPR
  • 1-Hydroxy-2-naphthaldehyde, c0437, C11427, 574-96-9

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
172.18 g/molcalc.
Exact mass
172.0524 Dacalc.
LogP (octanol/water)
2.36calc.
Topological polar surface area
37.3 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
1calc.
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, c1ccc2ccccc2c1

c1ccc2ccccc2c1

2 rings, 10 atoms, the Naphthalene ring system.

17,920 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

  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
  • H400Very toxic to aquatic life.
  • H410Very toxic to aquatic life with long lasting effects.
Precautionary statements (18)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P271Use only outdoors or in a well-ventilated area.
  • P273Avoid release to the environment.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P302 + P352If on skin: Wash with plenty of water.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P332 + P317If skin irritation occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P391Collect spillage.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • P405Store locked up.
  • 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

1-Hydroxy-2-naphthaldehyde suppliers

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All 3 suppliers

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Where suppliers are based

3 suppliers in 2 countries

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1-Hydroxy-2-naphthaldehyde 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 1-Hydroxy-2-naphthaldehyde is traded under.

HS 2912.49Indicative HS code

Aldehyde-alcohols, aldehyde-ethers, aldehyde-phenols and aldehydes with other oxygen…

World exports in 2024
$159M
−9.6% vs 2023, imports $171M
2019 to 2024
Top exporters
  1. China36.7%
  2. India * partner reported27.5%
  3. Germany13.9%
Top importers
  1. China16.0%
  2. United States15.7%
  3. India * partner reported9.6%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for 1-Hydroxy-2-naphthaldehyde is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 1-Hydroxy-2-naphthaldehyde, based on the data on this page

What is 1-Hydroxy-2-naphthaldehyde?

1-hydroxy-2-naphthaldehyde is a member of the class of naphthaldehydes that is naphthalene-2-carbaldehyde substituted by a hydroxy group at position 1. It is a member of naphthols and a member of naphthaldehydes.

What is the CAS number of 1-Hydroxy-2-naphthaldehyde?

The CAS registry number of 1-Hydroxy-2-naphthaldehyde is 574-96-9.

What is the molecular formula and weight of 1-Hydroxy-2-naphthaldehyde?

The molecular formula of 1-Hydroxy-2-naphthaldehyde is C11H8O2 and its molar mass is 172.18 g/mol.

What is 1-Hydroxy-2-naphthaldehyde used for?

Known uses and roles of 1-Hydroxy-2-naphthaldehyde include building blocks in research and laboratory and screening compounds in research and laboratory.

Is 1-Hydroxy-2-naphthaldehyde hazardous?

1-Hydroxy-2-naphthaldehyde carries the GHS signal word "Warning". Main hazards: causes skin irritation, causes serious eye irritation, may cause respiratory irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of 1-Hydroxy-2-naphthaldehyde?

1-Hydroxy-2-naphthaldehyde is usually classified under HS code 291249 (Aldehyde-alcohols, aldehyde-ethers, aldehyde-phenols and aldehydes with other oxygen…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy 1-Hydroxy-2-naphthaldehyde?

CompoundList lists 3 suppliers of 1-Hydroxy-2-naphthaldehyde in United States and China. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of 1-Hydroxy-2-naphthaldehyde?

Suppliers quote 1-Hydroxy-2-naphthaldehyde 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 1-Hydroxy-2-naphthaldehyde

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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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