Description

Phloretic acid (CAS 501-97-3), also known as 3-(4-hydroxyphenyl)propanoic acid, is a phenolic derivative with the molecular formula C₉H₁₀O₃. This white to off-white crystalline powder is a valuable intermediate in organic synthesis and biochemical research, particularly in the study of polyphenols and their derivatives. With a molecular weight of 166.17 g/mol, it exhibits solubility in polar organic solvents such as ethanol, methanol, and DMSO, while being sparingly soluble in water. Phloretic acid is characterized by its aromatic phenol moiety and carboxylic acid functional group, making it a versatile building block for pharmaceuticals, polymer chemistry, and flavor/fragrance applications. Our high-purity grade (>98%) is rigorously tested by HPLC, NMR, and mass spectrometry to ensure consistency for sensitive research applications. Proper storage at 2-8°C in a tightly sealed container is recommended to maintain stability.

Properties

• CAS Number: 501-97-3
• Complexity: 148
• IUPAC Name: 3-(4-hydroxyphenyl)propanoic acid
• InChI: InChI=1S/C9H10O3/c10-8-4-1-7(2-5-8)3-6-9(11)12/h1-2,4-5,10H,3,6H2,(H,11,12)
• InChI Key: NMHMNPHRMNGLLB-UHFFFAOYSA-N
• LogP: 1.16
• Exact Mass: 166.062994177
• Molecular Formula: C9H10O3
• Molecular Weight: 166.17
• SMILES: C1=CC(=CC=C1CCC(=O)O)O
• Topological: 57.5
• Monoisotopic Mass: 166.062994177
• Physical Description: Solid
• Melting Point: 129 °C
• Synonyms: 3-(4-Hydroxyphenyl)propionic acid, 501-97-3, Phloretic acid, 3-(4-Hydroxyphenyl)propanoic acid, desaminotyrosine, Dihydro-p-coumaric acid, Benzenepropanoic acid, 4-hydroxy-, Hydro-p-coumaric acid, 4-Hydroxyphenylpropionic acid, p-Hydroxyhydrocinnamic acid, 3-(p-Hydroxyphenyl)propionic acid, 4-Hydroxybenzenepropanoic acid, p-Hydroxyphenylpropionic acid, 4-HYDROXYHYDROCINNAMIC ACID, HYDROXYPHENYL PROPIONIC ACID, Hydrocinnamic acid, p-hydroxy-, Phloretinic acid, beta-(p-Hydroxyphenyl)propionic acid, uHLORETIC ACID, 3-(4′-Hydroxyphenyl)propionic acid, Dihydrocoumaric acid, NSC 40949, EINECS 207-931-3, 6QNC6P18SR, BRN 2209841, CHEBI:32980, AI3-31909, NSC-40949, 4-Hydroxybenzylacetic Acid, DTXSID2075427, 3-(p-hydroxyphenyl)propanoic acid, 4-10-00-00631 (Beilstein Handbook Reference), 2,3-DIHYDRO-P-COUMARIC ACID, DTXCID2040781, Benzenepropanoic acid, 4-hydroxy-(9CI), 207-931-3, inchi=1/c9h10o3/c10-8-4-1-7(2-5-8)3-6-9(11)12/h1-2,4-5,10h,3,6h2,(h,11,12, MFCD00002778, 3-(4-Hydroxyphenyl)-propionic acid, 4′-Hydroxyphenylpropionic acid, 4-hydroxy-benzenepropanoic acid, .beta.-(p-Hydroxyphenyl)propionic acid, 3-(p-Hydroxyphenyl)propionate, UNII-6QNC6P18SR, p-hydroxy-hydrocinnamic acid, Phloretinate, hydro-p-coumarate, 3-(4-Hydroxyphenyl)propionicAcid, Dihydro-p-coumarate, p-Hydroxyhydrocinnamate, p-hydroxy-hydrocinnamate, p-hydroxyphenylpropionate, 3-(p-HYDROXYPHENYL)-PROPIONIC ACID, hydroxy-hydrocinnamic acid, 4-Hydroxybenzenepropanoate, N-hydroxysuccinimide ester, 4-hydroxy-benzenepropanoate, bmse010064, p-hydroxy-benzene propionate, Oprea1_221751, SCHEMBL35486, 4-(4-Hydroxyphenylpropanoate, b-(p-Hydroxyphenyl)propionate, P-Hydroxybenzene propanoic acid, SCHEMBL1302387, SCHEMBL8067640, 3-(4-Hydroxyphenyl)-propionate, beta-(p-hydroxyphenyl)propionate, CHEMBL1172560, SCHEMBL28012029, 3-(para-Hydroxyphenyl)propionate, 4-(4-Hydroxyphenylpropanoic acid, 3-(4′-Hydroxyphenyl)-propionate, 3-(4-Hydroxy-phenyl)-propionate, 4-(2-CARBOXYETHYL)PHENOL, 4-hydroxy-(9CI)benzenepropanoate, b-(p-Hydroxyphenyl)propionic acid, BDBM231636, NSC40949, NSC65596, 3(4-hydroxy phenyl) propionic acid, 3-(4-hydroxy-phenyl)propanoic acid, 3-(4-hydroxy-phenyl)propionic acid, 3-(4-hydroxyphenyl)-propanoic acid, 3-[4-hydroxy phenyl]propionic acid, 3-(para-Hydroxyphenyl)propionic acid, BBL012597, NSC-65596, s3795, SBB064098, STK803270, 3-(4 Hydroxy-phenyl)-propionic acid, 3-(4′-Hydroxyphenyl)-propionic acid, 3-(4-hydroxy phenyl) propionic acid, 3-(4-Hydroxy-phenyl)-propanoic acid, 3-(4-Hydroxy-phenyl)-propionic acid, 4-hydroxy-(9CI)benzenepropanoic acid, 3-(para-Hydroxyphenyl)-propionic acid, AKOS000193936, AB00269, AC-5144, AT13193, CCG-266325, CS-W016062, DB03897, FH24472, HY-W015346, propanoic acid, 3-(4-hydroxyphenyl)-, PS-5760, P-HYDROXY-BENZENE PROPIONIC ACID, NCGC00382803-03, 3-(4-Hydroxyphenyl)propionic acid, 98%, 3-(4-HYDROXYPHENYL) PROPIONIC ACID, DB-021662, H0599, NS00014704, ST50330629, EN300-50375, C01744, M03860, AQ-358/40179730, Q7186527, F2191-0066, Z317038012, 4-Hydroxy-benzenepropanoic acid; p-Hydroxyhydrocinnamic acid; 2,3-Dihydro-p-coumaric acid; Phloretic acid

Application

Phloretic acid serves as a key precursor in the synthesis of bioactive compounds, including antimicrobial and antioxidant agents. Researchers utilize it as a model compound for studying the metabolic pathways of polyphenols in microbial systems. In material science, it finds application as a monomer for synthesizing renewable polymers with enhanced thermal properties. Its structural similarity to tyrosine metabolites makes it valuable in biochemical studies of phenylpropanoid pathways.

Safety and Hazards

GHS Hazard Statements

• H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]
• H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
• H335 (99.3%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

Precautionary Statements

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

Hazard Classes and Categories

• Skin Irrit. 2 (100%)
• Eye Irrit. 2A (100%)
• STOT SE 3 (99.3%)

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