1,3-Benzoxazole-2,5-dicarboxylic acid CAS 1227406-86-1
| CAS No. | 1227406-86-1 |
| Molecular Formula | C9H5NO5 |
| Molecular Weight | 207.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 1,3-Benzoxazole-2,5-dicarboxylic acid is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 1,3-Benzoxazole-2,5-dicarboxylic acid (CAS 1227406-86-1), a certified reference material (molecular formula C9H5NO5, MW 207.14 g/mol) for analytical method development and quality control.
Based on its molecular formula C9H5NO5, 1,3-Benzoxazole-2,5-dicarboxylic acid contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 207.14 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 1,3-Benzoxazole-2,5-dicarboxylic 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 | C9H5NO5 |
| Molecular Weight | 207.14 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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 |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 1 |
Related Benzoxazole Standards
- 1,3-Benzoxazole-6-sulfonyl chloride (CAS 134369-62-3)
- 2-Methyl-1,3-benzoxazole-5-carbonyl chloride (CAS 444777-18-8)
- 2-Methyl-1,3-benzoxazole-5-carbothioamide (CAS 1287217-54-2)
- 5-Methyl-1,3-benzoxazole-2-carbothioamide (CAS 33653-01-9)
- 6-methyl-2,1-benzoxazole-3-carboxylic acid (CAS 1204297-40-4)
- 1,2-Benzoxazole-3-methanol, 7-chloro- (CAS 1200219-12-0)
- 2-Methyl-1,3-benzoxazole-5-sulfonyl chloride (CAS 1094671-83-6)
- 2-Methyl-1,3-benzoxazole-6-sulfonyl chloride (CAS 52206-51-6)
Recommended Standards
- 3-Nitro-1H-pyrrolo[2,3-b]pyridine-4-carboxylic acid (CAS 1190321-26-6)
- 6-Nitro-1H-pyrrolo[3,2-b]pyridine-2-carboxylic acid (CAS 1260386-80-8)
- 6-Nitro-1H-pyrrolo[3,2-b]pyridine-3-carboxylic acid (CAS 1190320-60-5)
- 6-Nitro-2H-indazole-3-carboxylic acid (CAS 1260657-54-2)
- UR-144 Degradant (CAS 1609273-88-2)
- 6-Chloro-1-methyl-4-(trifluoromethyl)pyridin-2(1H)-one (CAS 1823961-31-4)
- 3-(Hex-1-yn-1-yl)-2,5-dimethylpyrazine (CAS 109191-81-3)
- 3-Ethoxy-N-((4-methylthiazol-5-yl)methyl)propan-1-amine (CAS 1496454-92-2)
- 2,3-Dimethoxy-6-nitrophenol (CAS 85325-83-3)
- 4-[4-(4-O-Methoxymethyl-4-hydroxyphenyl)-1-piperazinyl]phenyl]carbamic Acid Phenyl Ester (CAS 1329503-19-6)
- Calciumacetylsalicylate (CAS 69-46-5)
- 1-((Chloromethyl)sulfonyl)-3-ethoxypiperidine (CAS 1342431-09-7)
- 768-61-6 2-Pyridinemethanol, 5-ethyl- 5-Ethyl-2-pyridinemethanol (CAS 768-61-6)
- Anti-Inflammatory Peptide 3 (CAS 118850-73-0)
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