(3-oxo-1,3-dihydroisobenzofuran-1-yl)phosphonic acid CAS 4741-67-7
| CAS No. | 4741-67-7 |
| Molecular Formula | C8H7O5P |
| Molecular Weight | 214.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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 supplies (3-oxo-1,3-dihydroisobenzofuran-1-yl)phosphonic acid (CAS 4741-67-7), a certified reference material (molecular formula C8H7O5P, MW 214.11 g/mol) for analytical method development and quality control.
The molecular framework of (3-oxo-1,3-dihydroisobenzofuran-1-yl)phosphonic acid (C8H7O5P) is characterized by a phosphate ester group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
CATO manufactures (3-oxo-1,3-dihydroisobenzofuran-1-yl)phosphonic acid 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 | C8H7O5P |
| Molecular Weight | 214.11 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
Related oxo Standards
- 1-Oxo-1,3-dihydroisobenzofuran-4-sulfonamide (CAS 89819-28-3)
- 3-Oxo-1,3-dihydroisobenzofuran-5-sulfonamide (CAS 56622-77-6)
- 1-(1,3-Dihydroisobenzofuran-5-yl)-2,2,2-trifluoroethanone (CAS 1538172-82-5)
- 4-((1,3-Dihydroisobenzofuran-5-yl)oxy)piperidine (CAS 1781571-58-1)
- 2-((3-Oxo-1,3-dihydroisobenzofuran-1-yl)oxy)acetic acid (CAS 61133-41-3)
- 3-Oxo-1,3-dihydroisobenzofuran-1-yl butyrate (CAS 108761-29-1)
- ((1,3-Dihydroisobenzofuran-5-yl)methoxy)trimethylsilane (CAS 61040-76-4)
- 5-(3-Oxo-1,3-dihydroisobenzofuran-5-yl)furan-2-carbaldehyde (CAS 591212-74-7)
Recommended Standards
- 2,2-Difluoroethyl Triflate (CAS 74427-22-8)
- 4,6-dichloro-1-(trideuteriomethyl)pyrazolo[3,4-d]pyrimidine (CAS 2570124-20-6)
- 2,2-Dichloro-1-thiomorpholinoethan-1-one (CAS 663884-74-0)
- 1,3-Bis(trifluoromethyl)-benzene (CAS 402-31-3)
- 5-O-DMT-thymidine 3-O-succinate triethylammonium salt (CAS 74405-40-6)
- 1-[2-Fluoro-4-(trifluoromethyl)phenyl]piperazine (CAS 817170-70-0)
- Trichloro(heptyl)silane (CAS 871-41-0)
- Sodium 2-nitro-4-(trifluoromethyl)benzenesulfinate (CAS 1233506-34-7)
- 5-(Hydroxymethyl)-1,3-dihydro-2H-pyrrolo[2,3-b]pyridin-2-one (CAS 1638763-99-1)
- (2S,4S)-2-[(Benzoyloxy)methyl]-1,3-dioxolane-4-carboxylic Acid (CAS 145354-81-0)
- 4-(3-Ethyl-1-methyl-1h-1,2,4-triazol-5-yl)-2-methylaniline (CAS 1343370-97-7)
- 2-(1-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-3-methylcyclobutyl)acetic acid (CAS 2164347-93-5)
- Fmoc-4-diethylphosphomethyl-L-phenylalanine, 97% (CAS 160253-13-4)
- Hexapeptide-9 (CAS 1228371-11-6)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com