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Aromatic building blocks

2-Hydroxy-1-naphthaldehyde

Also known as 1-Formyl-2-naphthol, 1-Naphthalenecarboxaldehyde, 2-hydroxy-, 2-Hydroxy-1-naphthalaldehyde

CAS 708-06-5Formula C11H8O2Molar mass 172.18 g/molEC 211-902-0
GHS signal word: Warning. Pictograms: Hazardous to the environment 28 suppliers listed
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2-Hydroxy-1-naphthaldehyde chemical structure, C11H8O2, CAS 708-06-5
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
708-06-5
Formula
C11H8O2
Molar mass
172.18 g/mol
EC number
211-902-0
HS code
291249
Category
Aromatic building blocks

What is 2-Hydroxy-1-naphthaldehyde?

Plain description, key identifiers and synonyms

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

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-hydroxynaphthalene-1-carbaldehyde
CAS number
708-06-5 CAS number cross-checkedOther or deprecated CAS: 101482-89-7
EC number
211-902-0
Molecular formula
C11H8O2
UNII
PP9CFN7QNL
MDL number
MFCD00004005
InChIKey
NTCCNERMXRIPTR-UHFFFAOYSA-N
InChI
InChI=1S/C11H8O2/c12-7-10-9-4-2-1-3-8(9)5-6-11(10)13/h1-7,13H
SMILES (canonical and isomeric)
C1=CC=C2C(=C1)C=CC(=C2C=O)O

Synonyms

  • 1-Formyl-2-naphthol
  • 1-Naphthalenecarboxaldehyde, 2-hydroxy-
  • 2-Hydroxy-1-naphthalaldehyde
  • 2-Hydroxy-1-naphthylaldehyde
  • 2-Naphthol 1-carboxaldehyde
  • 2-Hydroxy-1-naphthalenecarboxaldehyde
  • beta-Hydroxynaphthaldehyde
  • 1-Hydroxy-2-naphthalenecarboxaldehyde
  • 2-hydroxynaphthalene-1-carbaldehyde
  • 2-Hydroxynaphthaldehyde
  • 2-Hydroxy-1-napthaldehyde
  • 1-Naphthaldehyde, 2-hydroxy-
  • 2-hydroxy-naphthalene-1-carbaldehyde
  • 1-Formylnaphthalen-2-ol
  • 2-hydroxy-1-naphthoaldehyde
  • 2-Hydroxy-alpha-naphthaldehyde
  • beta-Hydroxy-alpha-naphthaldehyde
  • 2-hydroxynaphthalenecarbaldehyde
  • 1-napht
  • 2-Hydroxynaphthalene-1-carboxaldehyde
  • Naphthalenecarboxaldehyde, 2-hydroxy-
  • 2-Naphthol-1-aldehyde
  • 2-Hydroxy-naphthaldehyde
  • 2-hydroxy-1-naphtaldehyde
  • Probes2_000080
Show all 33 synonyms
  • 4-08-00-01160 (Beilstein Handbook Reference)
  • 1-Formyl-2-hydroxy-naphthalene
  • 2-Hydroxy-1-naphthalenealdehyde
  • 2-hydroxynaphthalene-1-aldehyde
  • 2-hydroxy-naphthalene 1-carbaldehyde
  • 1-naphthalenecarboxaldehyde, 2-hydroxy
  • 2-Hydroxy-1-naphthaldehyde, technical grade
  • (z)-1-(hydroxymethylene)naphthalen-2(1h)-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
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
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H400Very toxic to aquatic life.
  • H410Very toxic to aquatic life with long lasting effects.
Precautionary statements (3)
  • P273Avoid release to the environment.
  • 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

2-Hydroxy-1-naphthaldehyde suppliers

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Where suppliers are based

28 suppliers in 9 countries

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2-Hydroxy-1-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

United States

  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

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

Frequently asked questions

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

What is 2-Hydroxy-1-naphthaldehyde?

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

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

The CAS registry number of 2-Hydroxy-1-naphthaldehyde is 708-06-5. Other or deprecated CAS numbers: 101482-89-7.

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

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

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

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

Is 2-Hydroxy-1-naphthaldehyde hazardous?

2-Hydroxy-1-naphthaldehyde carries the GHS signal word "Warning". Main hazards: very toxic to aquatic life, very 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 2-Hydroxy-1-naphthaldehyde?

2-Hydroxy-1-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 2-Hydroxy-1-naphthaldehyde?

CompoundList lists 28 suppliers of 2-Hydroxy-1-naphthaldehyde in China, United States, Japan, Canada and 5 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

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

1 supplier in India list 2-Hydroxy-1-naphthaldehyde on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

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

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Guides for buyers

Practical guides that help when you source, ship or handle 2-Hydroxy-1-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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