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Aromatic building blocks

3-Hydroxyphthalic acid

Also known as 3-hydroxybenzene-1,2-dicarboxylic acid, Phthalic acid, 3-hydroxy-, 1,2-Benzenedicarboxylic acid, 3-hydroxy-

CAS 601-97-8Formula C8H6O5Molar mass 182.13 g/molEC 210-011-4
GHS signal word: Warning. Pictograms: Harmful or irritant
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3-Hydroxyphthalic acid chemical structure, C8H6O5, CAS 601-97-8
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
601-97-8
Formula
C8H6O5
Molar mass
182.13 g/mol
EC number
210-011-4
HS code
291829
Category
Aromatic building blocks

What is 3-Hydroxyphthalic acid?

Plain description, key identifiers and synonyms

3-Hydroxyphthalic acid is a hydroxybenzoic acid. It is functionally related to a salicylic acid.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
3-hydroxyphthalic acid
CAS number
601-97-8 CAS number cross-checked
EC number
210-011-4
Molecular formula
C8H6O5
UNII
U8LUD5V352
MDL number
MFCD17000078
InChIKey
MNUOZFHYBCRUOD-UHFFFAOYSA-N
InChI
InChI=1S/C8H6O5/c9-5-3-1-2-4(7(10)11)6(5)8(12)13/h1-3,9H,(H,10,11)(H,12,13)
SMILES (canonical and isomeric)
C1=CC(=C(C(=C1)O)C(=O)O)C(=O)O

Synonyms

  • 3-hydroxybenzene-1,2-dicarboxylic acid
  • Phthalic acid, 3-hydroxy-
  • 1,2-Benzenedicarboxylic acid, 3-hydroxy-
  • 3-hydroxy-1,2-benzenedicarboxylic acid
  • 3-hydroxyphthalate
  • 3-Hydroxybenzene-1,2-dicarboxylate
  • 3-Hydroxy-1,2-benzenedicarboxylicacid
  • 3-Hydroxyphthalicacid
  • 1, 3-hydroxy-
  • 1,2-Benzenedicarboxylicacid, 3-hydroxy-
  • 3-hydroxy-phthalic acid
  • 1,2-Benzenedicarboxylic acid, 3-hydroxy- [
  • GOG

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
182.13 g/molcalc.
Exact mass
182.0215 Dacalc.
LogP (octanol/water)
0.79calc.
Topological polar surface area
94.83 Ųcalc.
Hydrogen bond donors
3calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
2calc.
Heavy atoms
13calc.
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

  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
Precautionary statements (16)
  • 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.
  • 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.
  • 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

3-Hydroxyphthalic acid suppliers

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3-Hydroxyphthalic acid 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 3-Hydroxyphthalic acid is traded under.

HS 2918.29Indicative HS code

Carboxylic acids, (with phenol function but without other oxygen function), their anhydrides, halides…

World exports in 2024
$861M
+0.9% vs 2023, imports $892M
2019 to 2024
Top exporters
  1. China30.5%
  2. South Korea18.3%
  3. Switzerland * partner reported13.3%
Top importers
  1. United States14.7%
  2. Germany13.3%
  3. Japan10.3%

* Partner reported figures, a lower bound.

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

The HS code shown for 3-Hydroxyphthalic acid is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 3-Hydroxyphthalic acid, based on the data on this page

What is 3-Hydroxyphthalic acid?

3-Hydroxyphthalic acid is a hydroxybenzoic acid. It is functionally related to a salicylic acid.

What is the CAS number of 3-Hydroxyphthalic acid?

The CAS registry number of 3-Hydroxyphthalic acid is 601-97-8.

What is the molecular formula and weight of 3-Hydroxyphthalic acid?

The molecular formula of 3-Hydroxyphthalic acid is C8H6O5 and its molar mass is 182.13 g/mol.

What is 3-Hydroxyphthalic acid used for?

Known uses and roles of 3-Hydroxyphthalic acid include building blocks in research and laboratory and screening compounds in research and laboratory.

Is 3-Hydroxyphthalic acid hazardous?

3-Hydroxyphthalic acid 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 3-Hydroxyphthalic acid?

3-Hydroxyphthalic acid is usually classified under HS code 291829 (Carboxylic acids with phenol function but without other oxygen function, their…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy 3-Hydroxyphthalic acid?

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What is the price of 3-Hydroxyphthalic acid?

Suppliers quote 3-Hydroxyphthalic acid 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 3-Hydroxyphthalic acid

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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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