4 fluorobenzaldehyde

Manufactured by Merck Group

Sourced in United States, Germany

4-fluorobenzaldehyde is a colorless liquid compound that is used as a chemical building block in various organic synthesis processes. It has the molecular formula C₆H₅FO. The compound serves as a precursor for the production of other chemicals and pharmaceuticals.

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Lab products found in correlation

7 protocols using 4 fluorobenzaldehyde

Standardized Cell Culture Conditions

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All reagents were of analytical grade or of the highest grade available. Antibiotic mixture of penicillin/streptomycin (10,000 U/mL/10,000 mg/mL), fungizone (250 mg/mL), and heat-inactivated fetal bovine serum (FBS) were obtained from GIBCO Invitrogen (Barcelona, Spain). Collagen G was obtained from Merck (Darmstadt, Germany). 4-Fluorobenzaldehyde (≥98%), collagenase from Clostridium histolyticum Type IA, desmosterol (≥84%), dexamethasone, ethylene glycol-bis-(2-aminoethylether)-N, N, N’, N’-tetraacetic acid (EGTA), gentamicin, insulin solution from bovine pancreas (10 mg/mL), methoxyamine hydrochloride (≥98%), N,O-bis(trimethylsilyl)trifluoroacetamide with 1% trimethylchlorosilane (BSTFA + 1% TMCS), O-(2,3,4,5,6-pentafluorobenzyl)hydroxylamine hydrochloride (PFBHA, ≥99%), sodium chloride (NaCl, ≥99.5%), thiazolyl blue tetrazolium bromide (MTT, ≥98%), thymol (≥98.5%), Triton X-100, trypan blue solution, Williams’ E medium, and all standards used throughout the work were purchased from Sigma-Aldrich (St. Louis, Missouri, USA). Methanol (≥99.9%) and pyridine (≥99%) were purchased from VWR (Leuven, Belgium).

Araújo A.M., Enea M., Carvalho F., Bastos M.D., Carvalho M, & Guedes de Pinho P. (2019). Hepatic Metabolic Derangements Triggered by Hyperthermia: An In Vitro Metabolomic Study. Metabolites, 9(10), 228.

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Quantitative Analysis of Food Volatiles

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All chemicals used had a purity grade higher than 95%. Hexanal, benzaldehyde, 2-methylpropanal, nonanal, 2-methylbutanal, 3-methylbutanal, and 4-fluorobenzaldehyde standards were purchased from Sigma-Aldrich (Steinheim, Germany). Acetaldehyde, phenylAcetaldehyde, 5-(hydroxymethyl) furfural, 2-furaldehyde, and trans-2-nonenal were purchased from Acros Organics (Geel, Belgium). Absolute ethanol, acetonitrile, and methanol (HPLC grade 99.99%) was obtained from Sigma-Aldrich (Steinheim, Germany). Sodium chloride was obtained from Panreac (Barcelona, Spain). Ultra-pure water with a resistivity of >18 MΩ.cm (type 1) was obtained from a Millipore Simplicity^® UV apparatus (Milford, MA, USA). The alkane solution (C7–C30) was obtained from Supelco (Sigma Aldrich, St. Louis, MO, USA).

Aguiar D., Pereira A.C, & Marques J.C. (2023). Assessment of the Prediction Power of Forced Ageing Methodology on Lager Beer Aldehyde Evolution during Maritime Transportation. Molecules, 28(10), 4201.

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Volatile Compound Analysis by GC-MS

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All chemicals used had a purity grade higher than 95%. Hexanal, benzaldehyde, 2-methylpropanal, nonanal, 2-methylbutanal, 3-methylbutanal, and 4-fluorobenzaldehyde standards were purchased from Sigma-Aldrich (Steinheim, Germany). Acetaldehyde, phenylAcetaldehyde, 5-(hydroxymethyl) furfural, 2-furaldehyde and trans-2-nonenal were purchased from Acros Organics (Geel, Belgium). Absolute ethanol, acetonitrile, and methanol (all HPLC grade 99.99%) came from Sigma-Aldrich (Steinheim, Germany). Sodium chloride was obtained from Panreac (Barcelona, Spain). Ultra-pure water with a resistivity of >18 MΩ·cm (type 1) was obtained from a Millipore Simplicity^® UV apparatus (Milford, MA, USA). The alkane solution (C7–C30) was obtained from Supelco (Sigma Aldrich, St. Louis, MO, USA).

Aguiar D., Pereira A.C, & Marques J.C. (2022). Assessment of Staling Aldehydes in Lager Beer under Maritime Transport and Storage Conditions. Molecules, 27(3), 600.

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Synthesis of Substituted 1,4-Dihydropyridines

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Aluminum oxide was purchased from Loba Chemie (Mumbai, India), while a fine PVC (Polyvinyl Chloride) powder with a 36 μm particle diameter was supplied from SABIC corporation (Riyadh, Saudi Arabia) as a support material for the catalyst. Dimedone (5,5-Dimethyl-1,3-cyclohexanedione) (CAS No.126-81-8), Urea (CAS No. 57-13-6), ThioUrea (CAS No. 62-56-6), and aldehydes such as 4-Chlorobenzaldehyde (CAS No. 104-88-1), 4-Fluorobenzaldehyde (CAS No. 459-57-4), 4-Hydroxy-3-methoxybenzaldehyde (Vanillin) (CAS No. 21-33-5), Furfural (Furan-2-carboxyaldehydes) (CAS No. 98-01-1) were acquired from Sigma Aldrich (St. Louis, MO, USA).

Alharthi A.I., Alotaibi M.A., Alansi A.M., Qahtan T.F., Ali I., Al-Shalwi M.N, & Bakht M.A. (2023). Solar-Driven Thermocatalytic Synthesis of Octahydroquinazolinone Using Novel Polyvinylchloride (PVC)-Supported Aluminum Oxide (Al2O3) Catalysts. Materials, 16(7), 2835.

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Quantitative Analysis of Halogenated Aromatics

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General reagents were certified ACS reagent grade and were purchased from Sigma-Aldrich (St. Louis, MO) and Fisher Scientific (Itasca, IL). Media and fetal bovine serum (FBS) were purchased from Fisher Scientific (Itasca, IL). HAL standards were purchased from Sigma-Aldrich, CanSyn Chem. Corp. (Toronto, ON), Aldlab Chemicals (Woburn, MA), and TCI America (Waltham, MA) at the highest level of purity available (chemical properties, purity, and CAS numbers of investigated HALs are provided in Supporting Information (SI), Table S1). 4-Fluorobenzaldehyde and 1,2-dibromopropane, used as the surrogate standard (SS) and internal standard (IS), respectively, and O-(2,3,4,5,6-pentafluorobenzyl)hydroxylamine (PFBHA), used as the derivatizing agent, were purchased from Sigma-Aldrich. Oasis HLB cartridges (6 cc, 150 mg, 30 µm particle size) for solid-phase extraction (SPE) were purchased from Waters (Milford, MA). All solvents (acetonitrile, n-hexane, methyl tert-butyl ether (MTBE), methanol, and ethyl acetate) were of highest purity and were purchased from Fisher Scientific, EMD Millipore (Billerica, MA) or VWR International (Radnor, PA).

Jeong C.H., Postigo C., Richardson S.D., Simmons J.E., Kimura S.Y., Mariñas B.J., Barcelo D., Liang P., Wagner E.D, & Plewa M.J. (2015). Occurrence and Comparative Toxicity of Haloacetaldehyde Disinfection Byproducts in Drinking Water. Environmental science & technology, 49(23), 13749-13759.

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Benzaldehyde Derivatives Synthesis Protocols

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Benzaldehyde (99%), 4-methoxyBenzaldehyde (98%), 4-chloroBenzaldehyde (98%), 4-fluoroBenzaldehyde (98%), 2-fluoroBenzaldehyde (97%), 4-bromoBenzaldehyde (99%), 4-methylBenzaldehyde (97%), 2-furaldehyde (99%), ammonium acetate (97%), 2-chloroBenzaldehyde (99%) were purchased from Sigma-Aldrich. 1,3-Cyclohexadione (97%), acetophenone (98%), malononitrile (99%), and dimedone (99%) were acquired from Acros.
Ethyl acetate (for analysis EMSURE ACS, ISO, Reag. Ph Eur) and acetone (for analysis EMPARTA ACS) were acquired from Merck. Thin-layer chromatography (TLC) was conducted using aluminum plates (F-254) covered with silica gel. The experiment included the use of silica gel (230–400 mesh, Merck) for column chromatography.

Nguyen P.N., Nguyen L.H., Doan T.L., Tran P.H, & Nguyen H.T. (2024). A eutectogels-catalyzed one-pot multi-component reaction: access to pyridine and chromene derivatives. RSC Advances, 14(10), 7006-7021.

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Synthesis of Substituted Pyrano[2,3-c]pyrazoles

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Phenylhydrazine (97%), ethyl acetoacetate (99%), malononitrile (99%), 4-nitro Benzaldehyde (98%), furfural (99%), 5-nitro-2-furaldehyde (99%), 4-fluoro Benzaldehyde (98%), 4-chloro Benzaldehyde (97%), 4-bromo Benzaldehyde (99%), and p-toluenesulfonic acid monohydrate (TsOH) (ACS grade reagent, assay ≥ 98.5%) were purchased from Sigma-Aldrich. Benzaldehyde, 4-methylBenzaldehyde, 4-methoxyBenzaldehyde, aniline, ethanol, TLC (silica gel 60 F₂₅₄), sulfuric acid (98%), hydrochloric acid (1 mol L⁻¹), and ortho-phosphoric acid (85%) were purchased from Merck. Ethyl acetate (99.5%) and n-hexane (99.5%) were purchased from Xilong Chemical Co., Ltd (China).

Nguyen H.T., Dang P.H, & Tran P.H. (2023). A new and straightforward route to synthesize novel pyrazolo[3,4-b]pyridine-5-carboxylate scaffolds from 1,4-dihydropyrano[2,3-c]pyrazole-5-carbonitriles. RSC Advances, 13(3), 1877-1882.

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