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Aldehydes and ketones

2,4-Dihydroxybenzaldehyde

Also known as beta-Resorcylaldehyde, Benzaldehyde, 2,4-dihydroxy-, b-resorcylaldehyde

CAS 95-01-2Formula C7H6O3Molar mass 138.12 g/molEC 202-383-1
GHS signal word: Warning. Pictograms: Harmful or irritant 25 suppliers listed
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2,4-Dihydroxybenzaldehyde chemical structure, C7H6O3, CAS 95-01-2
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
95-01-2
Formula
C7H6O3
Molar mass
138.12 g/mol
EC number
202-383-1
HS code
291249
Category
Aldehydes and ketones

What is 2,4-Dihydroxybenzaldehyde?

Plain description, key identifiers and synonyms

2,4-dihydroxybenzaldehyde is a dihydroxybenzaldehyde that is resorcinol which has been substituted by a formyl group para to one of the hydroxy groups.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2,4-dihydroxybenzaldehyde
CAS number
95-01-2 CAS number cross-checked
EC number
202-383-1
Molecular formula
C7H6O3
UNII
772JOF6LZS
MDL number
MFCD00011686
InChIKey
IUNJCFABHJZSKB-UHFFFAOYSA-N
InChI
InChI=1S/C7H6O3/c8-4-5-1-2-6(9)3-7(5)10/h1-4,9-10H
SMILES (canonical and isomeric)
C1=CC(=C(C=C1O)O)C=O

Synonyms

  • beta-Resorcylaldehyde
  • Benzaldehyde, 2,4-dihydroxy-
  • b-resorcylaldehyde
  • beta-Rosorcaldehyde
  • 2,4-Dihydroxybenzaldehyd
  • b-Resorcaldehyde
  • b-Resorcinaldehyde
  • b-Resorcylic aldehyde
  • 4-08-00-01753 (Beilstein Handbook Reference)
  • Dihydroxybenzaldehyde, 2,4-
  • 4-Hydroxysalicylaldehyde
  • 4-Formylresorcinol
  • beta-Resorcaldehyde
  • beta-Resorcinaldehyde
  • beta-Resorcylic aldehyde
  • 2,4-Dihydroxybenzenecarbonal
  • Salicylaldehyde, 4-hydroxy-
  • 4-Hydroxysalicyladehyde
  • 2,4-Dihydroxybezaldehyde
  • 2,4-dihydroxy benzaldehyde
  • 2,4-dihydroxy-benzaldehyde
  • Resorcinal
  • A-Resorcylaldehyde
  • ?-Resorcylaldehyde
  • Beta-resorcyl aldehyde
Show all 32 synonyms
  • 2,4dihydroxybenzaldehyde
  • 24-Dihydroxybenzaldehyde
  • 2,4-Dihyroxybenzaldehyde
  • 2,4 dihydroxybenzaldehyde
  • 2,4-dihydoxy-benzaldehyde
  • 2,4-dihydroxylbenzaldehyde
  • 2,4,-dihydroxybenzaldehyde

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
138.12 g/molcalc.
Exact mass
138.0317 Dacalc.
LogP (octanol/water)
0.91calc.
Topological polar surface area
57.53 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
1calc.
Heavy atoms
10calc.
Rings
1calc.
Aromatic rings
1calc.
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, c1ccccc1

c1ccccc1

1 ring, 6 atoms, the Benzene ring system.

485,677 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

Hazard statements

  • H302Harmful if swallowed.
  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
Precautionary statements (19)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • 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.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P317If swallowed: Get medical help.
  • 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).
  • P330Rinse mouth.
  • 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.
  • 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

2,4-Dihydroxybenzaldehyde suppliers

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Where suppliers are based

25 suppliers in 8 countries

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2,4-Dihydroxybenzaldehyde 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 2,4-Dihydroxybenzaldehyde 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 2,4-Dihydroxybenzaldehyde is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 2,4-Dihydroxybenzaldehyde, based on the data on this page

What is 2,4-Dihydroxybenzaldehyde?

2,4-dihydroxybenzaldehyde is a dihydroxybenzaldehyde that is resorcinol which has been substituted by a formyl group para to one of the hydroxy groups.

What is the CAS number of 2,4-Dihydroxybenzaldehyde?

The CAS registry number of 2,4-Dihydroxybenzaldehyde is 95-01-2.

What is the molecular formula and weight of 2,4-Dihydroxybenzaldehyde?

The molecular formula of 2,4-Dihydroxybenzaldehyde is C7H6O3 and its molar mass is 138.12 g/mol.

What is 2,4-Dihydroxybenzaldehyde used for?

Known uses and roles of 2,4-Dihydroxybenzaldehyde include building blocks in research and laboratory and screening compounds in research and laboratory.

Is 2,4-Dihydroxybenzaldehyde hazardous?

2,4-Dihydroxybenzaldehyde carries the GHS signal word "Warning". Main hazards: harmful if swallowed, causes skin irritation, causes serious eye irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of 2,4-Dihydroxybenzaldehyde?

2,4-Dihydroxybenzaldehyde 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 2,4-Dihydroxybenzaldehyde?

CompoundList lists 25 suppliers of 2,4-Dihydroxybenzaldehyde in China, United States, Canada, Germany 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 2,4-Dihydroxybenzaldehyde in India?

1 supplier in India list 2,4-Dihydroxybenzaldehyde on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of 2,4-Dihydroxybenzaldehyde?

Suppliers quote 2,4-Dihydroxybenzaldehyde 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 2,4-Dihydroxybenzaldehyde

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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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