Description

4-Fluorophenoxyacetic acid (CAS No. 405-79-8) is a high-purity fluorinated organic compound with the molecular formula C₈H₇FO₃. This white to off-white crystalline solid is widely used in pharmaceutical, agrochemical, and biochemical research due to its versatile reactivity as a phenoxyacetic acid derivative. The compound features a fluorine substituent at the para position of the phenoxy ring, enhancing its electronic properties for use in structure-activity relationship studies. With a molecular weight of 170.14 g/mol, it is soluble in organic solvents like ethanol, methanol, and DMSO, but has limited solubility in water. Our product is rigorously tested to ensure ≥98% purity (HPLC) and is supplied in secure, chemically resistant packaging to maintain stability. Ideal for use as a synthetic intermediate, enzyme inhibitor studies, or plant growth regulator research.

Properties

• CAS Number: 405-79-8
• Complexity: 152
• IUPAC Name: 2-(4-fluorophenoxy)acetic acid
• InChI: InChI=1S/C8H7FO3/c9-6-1-3-7(4-2-6)12-5-8(10)11/h1-4H,5H2,(H,10,11)
• InChI Key: ZBIULCVFFJJYTN-UHFFFAOYSA-N
• Exact Mass: 170.03792224
• Molecular Formula: C8H7FO3
• Molecular Weight: 170.14
• SMILES: C1=CC(=CC=C1OCC(=O)O)F
• Topological: 46.5
• Monoisotopic Mass: 170.03792224
• Synonyms: 4-FLUOROPHENOXYACETIC ACID, 405-79-8, p-Fluorophenoxyacetic acid, Acetic acid, (4-fluorophenoxy)-, EINECS 206-974-5, NSC 49589, DTXSID30193510, DTXCID70116001, Acetic acid, (4-fluorophenoxy)-(9CI), 206-974-5, inchi=1/c8h7fo3/c9-6-1-3-7(4-2-6)12-5-8(10)11/h1-4h,5h2,(h,10,11, zbiulcvffjjytn-uhfffaoysa-n, 2-(4-fluorophenoxy)acetic acid, (4-fluorophenoxy)acetic acid, 2-(4-fluorophenoxy)ethanoic acid, MFCD00004304, E9SUJ92N8Y, NSC-49589, F2169-0706, U2R, p-fluorophenoxy acetic acid, UNII-E9SUJ92N8Y, para-fluorophenoxyacetic acid, (p-fluorophenoxy)acetic acid, SCHEMBL503401, 2-(p-fluorophenoxy)acetic acid, (4-fluoro-phenoxy)-acetic acid, CHEMBL3249298, SCHEMBL28684003, Acetic acid, (p-fluorophenoxy)-, 4-Fluorophenoxyacetic acid, 98%, SMSSF-0533658, ALBB-000235, NSC49589, Acetic acid, 2-(4-fluorophenoxy)-, SBB030014, STK319510, AKOS000103795, BH-0410, HY-W052234, PD158404, SY003346, DB-049616, CS-0045013, NS00043267, ST50136081, EN300-17666, A50587, Z56978034

Application

4-Fluorophenoxyacetic acid serves as a key intermediate in the synthesis of fluorinated pharmaceuticals and agrochemicals. Researchers utilize this compound in plant physiology studies to investigate auxin-like activity and growth regulation. The fluorine substitution makes it valuable for PET radiotracer development and metabolic pathway studies. It’s also employed in organic synthesis as a building block for more complex fluorinated molecules.

Safety and Hazards

GHS Hazard Statements

• H302 (12.5%): 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 (87.5%): 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 (12.5%)
• Skin Irrit. 2 (100%)
• Eye Irrit. 2 (100%)
• STOT SE 3 (87.5%)

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