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Atomfair 3-Hydroxy-5-methoxybenzoic acid C8H8O4 CAS 19520-75-3

3-Hydroxy-5-methoxybenzoic acid (CAS No. 19520-75-3) is a high-purity aromatic carboxylic acid derivative with the molecular formula C8H8O4. This compound features both hydroxyl (-OH) and methoxy (-OCH3) functional groups ortho to the carboxylic acid moiety, making it a versatile intermediate for organic synthesis and pharmaceutical research. Available in crystalline form with ≥98% purity (HPLC), it is ideal for use as a building block in medicinal chemistry, ligand design, and material science applications. Each batch is rigorously tested for identity, potency, and impurities (including residual solvents and heavy metals) to ensure compliance with research-grade standards. Suitable for use in NMR, LC-MS, and…

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Description

3-Hydroxy-5-methoxybenzoic acid (CAS No. 19520-75-3) is a high-purity aromatic carboxylic acid derivative with the molecular formula C8H8O4. This compound features both hydroxyl (-OH) and methoxy (-OCH3) functional groups ortho to the carboxylic acid moiety, making it a versatile intermediate for organic synthesis and pharmaceutical research. Available in crystalline form with ≥98% purity (HPLC), it is ideal for use as a building block in medicinal chemistry, ligand design, and material science applications. Each batch is rigorously tested for identity, potency, and impurities (including residual solvents and heavy metals) to ensure compliance with research-grade standards. Suitable for use in NMR, LC-MS, and other analytical techniques.

Properties

  • CAS Number: 19520-75-3
  • Complexity: 168
  • IUPAC Name: 3-hydroxy-5-methoxy-benzoic acid
  • InChI: InChI=1S/C8H8O4/c1-12-7-3-5(8(10)11)2-6(9)4-7/h2-4,9H,1H3,(H,10,11)
  • InChI Key: TUUBOHWZSQXCSW-UHFFFAOYSA-N
  • Exact Mass: 168.04225873
  • Molecular Formula: C8H8O4
  • Molecular Weight: 168.15
  • SMILES: COC1=CC(=CC(=C1)O)C(=O)O
  • Topological: 66.8
  • Monoisotopic Mass: 168.04225873
  • Synonyms: 3-hydroxy-5-methoxybenzoic acid, 19520-75-3, DTXSID30428677, 3-hydroxy-5-methoxybenzoate, DTXCID50379511, CHEMBL2146904, MFCD06655980, AN-651/43284894, SCHEMBL618373, 3-hydroxy-5-methoxybenzoicacid, 3-hydroxy-5-methoxy-benzoic acid, CHEBI:193969, TUUBOHWZSQXCSW-UHFFFAOYSA-N, BDBM50391818, AKOS000277131, AB25434, AS-50131, DA-08627, CS-0336623, EN300-150713, O11013, Z1198169196

Application

3-Hydroxy-5-methoxybenzoic acid serves as a key synthon in the preparation of bioactive molecules, particularly in the development of antioxidant and anti-inflammatory agents. Its bifunctional structure allows for selective derivatization at the hydroxyl or carboxyl groups, enabling the synthesis of complex heterocycles or polymer precursors. Researchers also utilize it as a standard in chromatographic analysis of plant-derived phenolic compounds. In material science, it acts as a monomer for designing functionalized aromatic polyesters.

Safety and Hazards

GHS Hazard Statements

  • H302 (100%): Harmful if swallowed [Warning Acute toxicity, oral]
  • H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]
  • H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
  • H335 (100%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

Precautionary Statements

  • P261, P264, P264+P265, P270, P271, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P319, P321, P330, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501

Hazard Classes and Categories

  • Acute Tox. 4 (100%)
  • Skin Irrit. 2 (100%)
  • Eye Irrit. 2A (100%)
  • STOT SE 3 (100%)

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Disclaimer: Sold exclusively for laboratory research. Prohibited for commercial use, diagnostics, or human/animal applications. Buyers assume all compliance liability.

Disclaimer

Intended Use & Restrictions

This product is sold exclusively for laboratory research, analytical testing, or non-commercial purposes.

  • Strictly prohibited: Resale, repackaging, or formulation into commercial products.
  • Not approved for human/animal use, diagnostics, or manufacturing (including pharmaceuticals, agrochemicals, or consumer goods).

Patent & Regulatory Compliance

Certain molecules may be protected by active patents or regulatory restrictions.

  • Buyers must independently verify patent status (e.g., via USPTO/EPO/CNIPA) and comply with local laws.
  • Atomfair LLC does not provide legal assurances regarding patent non-infringement or jurisdictional compliance.

Liability Release

By purchasing, the buyer agrees to:

  • Use this product only as permitted by law.
  • Indemnify Atomfair LLC against all claims arising from misuse, patent infringement, or regulatory violations.

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