Methyl 2-(3,5-difluorophenyl)-2-oxoacetate CAS 259739-92-9
| CAS No. | 259739-92-9 |
| Molecular Formula | C9H6F2O3 |
| Molecular Weight | 200.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Methyl 2-(3,5-difluorophenyl)-2-oxoacetate is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Methyl 2-(3,5-difluorophenyl)-2-oxoacetate (CAS 259739-92-9) is a high-purity analytical reference standard with the molecular formula C9H6F2O3 and a molecular weight of 200.14 g/mol.
Methyl 2-(3,5-difluorophenyl)-2-oxoacetate (C9H6F2O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures Methyl 2-(3,5-difluorophenyl)-2-oxoacetate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H6F2O3 |
| Molecular Weight | 200.14 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F-containing |
Related Methyl Standards
- 3-(2,3-Difluorophenyl)-2-oxopropanoic acid (CAS 1339728-97-0)
- 3-(2,4-Difluorophenyl)-2-oxopropanoic acid (CAS 676530-01-1)
- 3-(2,6-Difluorophenyl)-2-oxopropanoic acid (CAS 496913-15-6)
- 3-(3,4-Difluorophenyl)-2-oxopropanoic acid (CAS 954587-39-4)
- Methyl 2-(3,4-difluorophenyl)-2-oxoacetate (CAS 220239-71-4)
- N-(2,4-difluorophenyl)-2-(N-hydroxyimino)acetamide (CAS 366-46-1)
- 2-(2,3-Difluorophenyl)-2-methylpropanoic acid (CAS 1035261-36-9)
- 3-(3,4-Difluorophenyl)butanoic acid (CAS 1042641-92-8)
Recommended Standards
- Methyl 2,3-difluoro-4-formylbenzoate (CAS 1989657-57-9)
- 6-Methyl-2H-pyran-2,4(3H)-dione (CAS 541-98-0)
- Methyl 2,5-difluoro-3-formylbenzoate (CAS 952480-00-1)
- 6-Amino-2,2-difluoro-2H-benzo[b][1,4]oxazin-3(4H)-one (CAS 575473-95-9)
- 2C-T-2 hydrochloride (CAS 681160-71-4)
- 1-((4-Fluorophenyl)sulfonyl)-1,2,3,4-tetrahydroquinolin-8-ol (CAS 385407-68-1)
- [2-(hydroxymethyl)tetrahydrofuran-2-yl]methanol (CAS 13386-57-7)
- 2-(3-Acetyl-5-hydroxyphenyl)acetic acid (CAS 1393552-57-2)
- (Arg8)-Conopressin G trifluoroacetate salt (CAS 130836-24-7)
- N-Ethyl-N-isopropylpropan-2-amine 2-(5-(1-(6-((2,5-dioxopyrrolidin-1-yl)oxy)-6-oxohexyl)-3,3-dimethyl-5-sulfonatoindolin-2-ylidene)penta-1,3-dien-1-yl)-1-ethyl-3,3-dimethyl-3h-indol-1-ium-5-sulfonate (CAS 1033006-65-3)
- 1-(4-Propoxyphenyl)pentan-1-one (CAS 524732-39-6)
- 7681-52-9 DY38VHM5OD Sodium hypochlorite Modified dakin's solution Sodium hypochlorite [USP:JAN] Hypochlorous acid, sodium salt Hypochlorous acid, sodium salt (1:1) B-K liquid Antiformin Carrel-dakin solution Caswell No. 776 CCRIS 708 Chloros Chlorox Cloropool Clorox Clorox liquid bleach Dakins solution Deosan Deosan Green Label Steriliser EINECS 231-668-3 EPA Pesticide Chemical Code 014703 Hospital Milton Household bleach HSDB 748 Hyclorite Hyposan and Voxsan Javex Klorocin Milton Milton Crystals Neo-cleaner Neoseptal CL Parozone Purin B Sodium oxychloride Surchlor AD Gel Cloralex Dakin's solution Dispatch Hypure Hypure N Javel water Javelle water Sodium hypochlorite (NaClO) Sodium hypochlorite (NaOCl) Solutions, Dakin's Sunnysol 150 XY 12 Youxiaolin UN 1791 Hypochlorite sodium Di-Dak-Sol UNII-DY38VHM5OD Sodium hypochlorite [solution, diluted] Dakins quarter Dakins half Dental antiformin EC 231-668-3 Chlorinated water (sodium hypochlorite) Sodium hypochlorite [Hypochloride salts] Sodium hypochlorite solution Sodium hypochlorite solution (15% or less) (CAS 7681-52-9)
- tert-Butyl 2-(ethylthio)-4-hydroxy-7,8-dihydropyrido[4,3-d]pyrimidine-6(5H)-carboxylate (CAS 338740-07-1)
- D-Ile12-Tirzepatide (CAS CATO-CPTD788921)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com