(2,5-Dimethylphenyl)phosphonic acid CAS 58983-19-0
| CAS No. | 58983-19-0 |
| Molecular Formula | C8H11O3P |
| Molecular Weight | 186.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(2,5-Dimethylphenyl)phosphonic acid (C8H11O3P) contains a phosphonate group, a carboxylic acid group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 supplies (2,5-Dimethylphenyl)phosphonic acid (CAS 58983-19-0), a certified reference material (molecular formula C8H11O3P, MW 186.14 g/mol) for analytical method development and quality control.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C8H11O3P |
| Molecular Weight | 186.14 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 3.5 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1973 |
Related Dimethylphenyl Standards
- (3,5-Dimethylphenyl)phosphonic acid (CAS 111192-80-4)
- (2,3-Dimethylphenyl)phosphonic acid (CAS 111192-84-8)
- 2-(3,4-Dimethylphenyl)-2,2-difluoroethan-1-ol (CAS 1780791-11-8)
- 2-(2,4-Dimethylphenyl)-2,2-difluoroethan-1-ol (CAS 1785274-59-0)
- 2-(3,5-Dimethylphenyl)-2,2-difluoroethan-1-ol (CAS 1820687-72-6)
- 2-(2,6-Dimethylphenyl)-2,2-difluoroethan-1-ol (CAS 1820710-55-1)
- 1-(3,4-Dimethylphenyl)cyclobutane-1-carbonitrile (CAS 1064702-32-4)
- 1-(3,5-Dimethylphenyl)cyclobutane-1-carbonitrile (CAS 1154178-68-3)
Recommended Standards
- (1-Phenylethyl)phosphonic acid (CAS 61470-40-4)
- 2-(2-Fluoroethoxy)pyrimidine-5-carboxylic acid (CAS 2092349-08-9)
- 3-Fluoro-2-methoxy-4-nitroaniline (CAS 1951445-06-9)
- 2-Fluoro-3-methoxy-4-nitroaniline (CAS 2091910-19-7)
- Tert-butyl 4-((6-((5-fluoro-4-(4-fluoro-1-isopropyl-2-methyl-1H-benzo[d]imidazol-6-yl)pyrimidin-2-yl)amino)pyridin-3-yl)methyl)piperazine-1-carboxylate (CAS 1231930-48-5)
- (R)-5-oxopiperidine-2-carboxylic acid (CAS 1414960-63-6)
- 2,2,5,5-Tetramethyl-1,2,5-azadisilolidine (CAS 7418-19-1)
- 2-Azabicyclo[2.2.2]octane-1-methanol hydrochloride (CAS 1630906-36-3)
- 1-Ethyl-3-(methylamino)-3,4-dihydroquinolin-2(1H)-one (CAS 762206-46-2)
- 4-(4-ethoxy-3-fluorophenyl)-4-oxobutanoic acid (CAS 1797723-62-6)
- Netupitant Impurity 40 (CAS CATO-C4X-122340)
- N-(3-Bromothiophen-2-yl)acetamide (CAS 25006-83-1)
- 2-Fluoro-3,5-dimethoxybenzoic acid (CAS 651734-59-7)
- Semaglutide Impurity 140 (CAS CATO-C4X-2226140)
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