4-hydroxy-3-methylbenzoic acid

• ChemBase ID: 6692
• Molecular Formular: C8H8O3
• Molecular Mass: 152.14732
• Monoisotopic Mass: 152.04734412
• SMILES: c1c(c(cc(c1)C(=O)O)C)O
• Canonical SMILES: OC(=O)c1ccc(c(c1)C)O
• InChI: InChI=1S/C8H8O3/c1-5-4-6(8(10)11)2-3-7(5)9/h2-4,9H,1H3,(H,10,11)
• InChIKey: LTFHNKUKQYVHDX-UHFFFAOYSA-N

NAMES AND DATABASE IDS

Names

• IUPAC name: 4-hydroxy-3-methylbenzoic acid
• IUPAC Traditional name: 4-hydroxy-3-methylbenzoic acid
• Synonyms: 4-Hydroxy-3-methylbenzoic acid; 4-Hydroxy-3-methylbenzoic acid; 4-Hydroxy-m-toluic acid; 4-Hydroxy-3-methylbenzoic acid hydrate; 4-羟基-3-甲基苯甲酸; 4-羟基-3-甲基苯甲酸水合物

Database IDs

• CAS Number: 499-76-3
• EC Number: 207-890-1
• MDL Number: MFCD00270105
• PubChem SID: 160969999; 24884411
• PubChem CID: 68138

CALCULATED PROPERTIES

• Acid pKa: 4.383307
• H Acceptors: 3
• H Donor: 2
• LogD (pH = 5.5): 0.69366777
• LogD (pH = 7.4): -1.061078
• Log P: 1.8406848
• Molar Refractivity: 40.3363 cm^3
• Polarizability: 15.051902 Å^3
• Polar Surface Area: 57.53 Å^2
• Rotatable Bonds: 1
• Lipinski's Rule of Five: true

PROPERTIES

Physical Property

• Melting Point: 173 - 177°C; 173-177 °C; 173-177°C; 174-175°C
• Hydrophobicity(logP): 2.006

Safety Information

• Storage Warning: IRRITANT
• European Hazard Symbols: Irritant (Xi); Harmful (Xn)
• German water hazard class: 2
• Risk Statements: 22-37/38-41; 36/37/38
• Safety Statements: 26-36/39; 26-37
• TSCA Listed: false; 否
• GHS Pictograms: GHS05; GHS07
• GHS Signal Word: Danger
• GHS Hazard statements: H302-H315-H318-H335; H315-H319-H335
• GHS Precautionary statements: P261-P280-P305 + P351 + P338; P280G-P305+P351+P338
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves

Product Information

• Purity: 95%; 97%; 98%
• Linear Formula: HOC6H3(CH3)CO2H

DETAILS

Sigma Aldrich - 659282

Packaging
1, 10 g in glass bottle
Other Notes
Tandem Mass Spectrometry data independently generated by Scripps Center for Metabolomics is available to view or download in PDF. 659282.pdf Tested metabolites are featured on Scripps Center for Metabolomics METLIN Metabolite Database. To learn more, visit sigma.com/metlin.