3-Hydroxy-2,4,6-triiodobenzoic Acid CAS 53279-72-4
| CAS No. | 53279-72-4 |
| Molecular Formula | C7H3I3O3 |
| Molecular Weight | 515.81 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies 3-Hydroxy-2,4,6-triiodobenzoic Acid (CAS 53279-72-4), a certified reference material (molecular formula C7H3I3O3, MW 515.81 g/mol) for analytical method development and quality control.
Based on its molecular formula C7H3I3O3, 3-Hydroxy-2,4,6-triiodobenzoic Acid contains a carboxylic acid group, a hydroxyl group, an ether linkage, iodine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 515.81 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
Physical & Chemical Properties
| Molecular Formula | C7H3I3O3 |
| Molecular Weight | 515.81 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1972 |
| Halogen Content | I-containing |
Related Hydroxy Standards
- 2-Hydroxy-2′-deoxyadenosine 5′-triphosphate (CAS 150668-64-7)
- 22-Hydroxy-N-(2-(5-hydroxy-1H-indol-3-yl)ethyl)docosanamide (CAS 73956-49-7)
- N-Hydroxy-1,3-bis((4-methoxyphenyl)sulfonyl)-5,5-dimethylhexahydropyrimidine-2-carboxamide (CAS 203915-59-7)
- Ethyl 2-({7-hydroxy-3-[(4-methoxyphenyl)carbamoyl]-2H-chromen-2-ylidene}amino)-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxylate (CAS 330663-43-9)
- 23S-hydroxy-3,7,11,15-tetraoxo-lanost-8,24E-diene-26-oic acid (CAS 1085273-49-9)
- (2R)-6-(3-(4-Hydroxy-2-methoxyphenyl)-1-(4-hydroxyphenyl)propyl)-2-(4-hydroxyphenyl)-8-methylchroman-7-ol (CAS 956103-75-6)
- 5-Hydroxy-7，8，2’，5’-tetramethoxyflavone 5-O-glucoside (CAS 942626-75-7)
- S-(1-Hydroxy-3,6,9,12,15,18-hexaoxanonacosan-29-yl) ethanethioate (CAS 130727-53-6)
Recommended Standards
- Halometasone impurity 16 (CAS CATO-C4X-144616)
- 6-Methoxy-2,2’,4,4’-tetrabromodiphenyl ether (CAS 102739-99-1)
- Halometasone impurity 11 (CAS CATO-C4X-144611)
- 4,4'-Oxybis(2,6-dibromoaniline) (CAS 61381-91-7)
- 5,5-Dimethyl-2-(phenylethynyl)-1,3,2-dioxaborinane (CAS 174584-78-2)
- N-(2-isopropylcyclobutyl)-2,2-dimethylthietan-3-amine (CAS 1862567-52-9)
- 7-((2-Fluoro-4-(methylthio)phenyl)amino)benzo[d]isothiazole-6-carboxylic acid (CAS 1203662-88-7)
- 2-[(4-Formyl-2-iodophenoxy)methyl]benzonitrile (CAS 675167-30-3)
- Ethyl 1-(5-cyanopyrimidin-2-yl)piperidine-4-carboxylate (CAS 1708401-78-8)
- S-(2-Oxo-2-((4-(p-tolyl)thiazol-2-yl)amino)ethyl) ethanethioate (CAS 891476-23-6)
- 20-((2,5-Dioxopyrrolidin-1-yl)oxy)-20-oxoicosanoic acid (CAS 146004-85-5)
- tert-Butyl 2-isobutylpiperazine-1-carboxylate (CAS 1060807-66-0)
- 2-Chloro-4-(difluoromethyl)-6-fluoropyridine (CAS 1805202-82-7)
- Angiotensin III Antipeptide (CAS 133605-55-7)
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