4-(5-Amino-6-hydroxybenzo[d]oxazol-2-yl)benzoic acid CAS 133440-67-2
| CAS No. | 133440-67-2 |
| Molecular Formula | C14H10N2O4 |
| Molecular Weight | 270.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies 4-(5-Amino-6-hydroxybenzo[d]oxazol-2-yl)benzoic acid (CAS 133440-67-2), a certified reference material (molecular formula C14H10N2O4, MW 270.24 g/mol) for analytical method development and quality control.
Structurally, 4-(5-Amino-6-hydroxybenzo[d]oxazol-2-yl)benzoic acid (C14H10N2O4) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 270.24 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO manufactures 4-(5-Amino-6-hydroxybenzo[d]oxazol-2-yl)benzoic 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 | C14H10N2O4 |
| Molecular Weight | 270.24 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Nitrogen Atoms | 2 |
Related Amino Standards
- 4-((6-Amino-1,3-dimethyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)amino)-4-oxobutanoic acid (CAS 109418-96-4)
- 4-(5-Amino-6-hydroxybenzo[d]oxazol-2-yl)benzoic acid (CAS 133440-66-1)
- 3-Amino-3-(4,5-dimethoxy-2-nitrophenyl)propionic Acid (CAS 682804-28-0)
- Methyl 7-amino-2-(pyridin-4-yl)-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate (CAS 1158498-89-5)
- ethyl 2-(5-amino-3,3-difluoro-2-oxo-2,3-dihydro-1H-indol-1-yl)acetate (CAS 1808408-97-0)
- 3-(4-Amino-3-fluorophenyl)-2-methylpyrido[2,3-d]pyrimidin-4(3H)-one (CAS 1286711-24-7)
- 3-Amino-N-(3-fluorophenyl)benzofuran-2-carboxamide (CAS 941868-92-4)
- 3-Amino-N-(4-fluorophenyl)benzofuran-2-carboxamide (CAS 609805-02-9)
Recommended Standards
- 5-Fluoro-1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridine-3-carbonitrile (CAS 1350653-26-7)
- 2,5-Dioxo-2,5-dihydrofuran-3,4-diyl dibutyrate (CAS 132-82-1)
- 1-Methyl-1H-benzo[d]imidazol-5-yl 6-oxo-1,6-dihydropyridazine-3-carboxylate (CAS 1351643-09-8)
- 1-Methyl-5-(4-oxoquinazolin-3(4H)-yl)-1H-pyrazole-4-carboxylic acid (CAS 131073-54-6)
- 2-Methyl-2-(1-methyl-1h-pyrazol-4-yl)propanoic acid (CAS 1249313-28-7)
- Methyl 2-((5-nitropyridin-2-yl)thio)acetate (CAS 224635-20-5)
- 6-Methyl-4H,5H,6H,7H-pyrazolo[1,5-a]pyrimidine-3-carboxylic acid (CAS 1545972-44-8)
- 2-(Benzo[d]isoxazol-3-yl)acetaldehyde (CAS 50471-23-3)
- 5-(4-Fluorophenyl)-1H-Pyrrole-3-Carboxylic Acid (CAS 250213-76-4)
- 2-Chloro-6,7-dihydro[1,4]dioxino[2,3-f][1,3]benzothiazole (CAS 887204-66-2)
- 2-Methyl-4-propionamidobenzenesulfonyl chloride (CAS 125744-21-0)
- 1-Bromo-2-chloro-5-nitro-4-(trifluoromethyl)benzene (CAS 2167346-05-4)
- 3-(1H-Indol-5-yl)-4-(2-morpholinoethoxy)benzaldehyde (CAS 832150-77-3)
- Insulin Degludec Impurity 24 (CAS CATO-C4X-215724)
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