Description

2-Fluoro-4-methoxybenzaldehyde (CAS No. 331-64-6) is a high-purity aromatic aldehyde derivative with the molecular formula C₈H₇FO₂. This compound features a fluorine substituent at the 2-position and a methoxy group at the 4-position of the benzaldehyde ring, offering unique reactivity for electrophilic aromatic substitution and nucleophilic addition reactions. Ideal for pharmaceutical intermediates, agrochemical synthesis, and material science applications, this reagent is supplied as a crystalline solid with ≥98% purity (GC). Store in a cool, dry place under inert atmosphere to ensure stability. Compatible with Grignard reactions, reductive amination, and cross-coupling methodologies.

Properties

• CAS Number: 331-64-6
• Complexity: 138
• IUPAC Name: 2-fluoro-4-methoxy-benzaldehyde
• InChI: InChI=1S/C8H7FO2/c1-11-7-3-2-6(5-10)8(9)4-7/h2-5H,1H3
• InChI Key: UNWQNFJBBWXFBG-UHFFFAOYSA-N
• Exact Mass: 154.04300762
• Molecular Formula: C8H7FO2
• Molecular Weight: 154.14
• SMILES: COC1=CC(=C(C=C1)C=O)F
• Topological: 26.3
• Monoisotopic Mass: 154.04300762
• Synonyms: 2-Fluoro-4-methoxybenzaldehyde, 331-64-6, UNWQNFJBBWXFBG-UHFFFAOYSA-, DTXSID30370546, DTXCID60321581, 642-882-5, inchi=1/c8h7fo2/c1-11-7-3-2-6(5-10)8(9)4-7/h2-5h,1h3, 2-Fluoro-p-anisaldehyde, 2-fluoro-4-methoxy-benzaldehyde, MFCD00236679, 2-fluoro-4-methoxy benzaldehyde, 2-Fluoro-4-methoxybenzaldehyde, 97%, Benzaldehyde, 2-fluoro-4-methoxy-, 2-FLUORO-4-METHOXYBENZALDHYDE, 2-fluor-4-methoxybenzaldehyd, SCHEMBL245504, SCHEMBL15328170, CL8279, SBB063771, AKOS005063672, AC-3838, CS-W001211, FF64021, PS-8887, BP-20461, SY024311, DB-021081, F0386, ST50411533, EN300-85920, Z1190318848

Application

2-Fluoro-4-methoxybenzaldehyde serves as a versatile building block in organic synthesis, particularly for constructing fluorinated drug candidates targeting CNS disorders. Its electron-deficient aromatic ring facilitates Suzuki-Miyaura couplings in material science for OLED development. The compound is also employed in asymmetric catalysis studies due to its steric and electronic modulation effects.

Safety and Hazards

GHS Hazard Statements

• H302 (30%): Harmful if swallowed [Warning Acute toxicity, oral]
• H312 (10%): Harmful in contact with skin [Warning Acute toxicity, dermal]
• H315 (90%): Causes skin irritation [Warning Skin corrosion/irritation]
• H319 (90%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
• H332 (10%): Harmful if inhaled [Warning Acute toxicity, inhalation]
• H335 (80%): 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, P317, P319, P321, P330, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501

Hazard Classes and Categories

• Acute Tox. 4 (30%)
• Skin Irrit. 2 (90%)
• Eye Irrit. 2A (90%)
• STOT SE 3 (80%)

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