5-Amino-2-(3-aminophenyl)benzoxazole CAS 13676-48-7
| CAS No. | 13676-48-7 |
| Molecular Formula | C13H11N3O |
| Molecular Weight | 225.25 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 5-Amino-2-(3-aminophenyl)benzoxazole (CAS 13676-48-7), a certified reference material (molecular formula C13H11N3O, MW 225.25 g/mol) for analytical method development and quality control.
5-Amino-2-(3-aminophenyl)benzoxazole (C13H11N3O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C13H11N3O |
| Molecular Weight | 225.25 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1960 |
| Nitrogen Atoms | 3 |
Related Amino Standards
- 5-Amino-2-((5-methylpyridin-2-yl)oxy)benzonitrile (CAS 1304228-31-6)
- 6-(3-Amino-4-methylphenoxy)nicotinonitrile (CAS 1334493-06-9)
- 5-Amino-2-(4-aminophenyl)benzoxazole (CAS 13676-47-6)
- 2-[(5-amino-4-methylpyridin-2-yl)oxy]benzonitrile (CAS 1500642-52-3)
- 6-Amino-2-(4-aminophenyl)benzoxazole (CAS 16363-53-4)
- 10-amino-2-methyl-1H,4H-benzo[g]quinazolin-4-one (CAS 30507-35-8)
- 2-(4-Amino-3-methylphenoxy)pyridine-3-carbonitrile (CAS 926242-17-3)
- 2,2'-((6-Amino-5H-imidazo[1,2-b]pyrazol-5-yl)azanediyl)diethanol (CAS 877929-41-4)
Recommended Standards
- 4-(Pyrazolo[1,5-a]pyridin-3-ylamino)phenol (CAS 136873-00-2)
- 3-Cyclopropyl-5-isocyanato-1-phenyl-1H-pyrazole (CAS 1349718-75-7)
- 2-((3-Methoxyphenyl)amino)isonicotinonitrile (CAS 137225-08-2)
- 3-(1-Methyl-1H-pyrazol-4-yl)quinoxalin-6-amine (CAS 1346245-04-2)
- 3,4-Dibromo-2-fluorophenylacetonitrile (CAS 1806346-17-7)
- 4-Fluoro-1-methyl-1h-indole-2-carboxylic acid (CAS 1146291-81-7)
- (3-Fluoro-5-(pentafluoro-λ6-sulfanyl)phenyl)methanol (CAS 1240257-89-9)
- 1-benzoylpyrrolidin-2-one (CAS 2399-66-8)
- 3-Chloro-6-(4-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]methyl}phenoxy)pyridazine (CAS 338750-35-9)
- 2,3,5,6-Tetrafluoro-4-methylpyridine (CAS 16297-14-6)
- N-((1-benzylpiperidin-3-yl)methyl)ethanamine (CAS 1353952-85-8)
- (Z)-Oct-3-en-1-yl acetate (CAS 69668-83-3)
- 1,1-dioxo-1λ⁶-thiane-4-sulfonyl fluoride (CAS 1934486-23-3)
- Semaglutide impurity 198 (CAS CATO-C4X-2226198)
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