1,3-Benzoxazol-4-ol CAS 89590-22-7
| CAS No. | 89590-22-7 |
| Molecular Formula | C7H5NO2 |
| Molecular Weight | 135.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 1,3-Benzoxazol-4-ol 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.
1,3-Benzoxazol-4-ol (CAS 89590-22-7), molecular formula C7H5NO2 and molecular weight 135.12 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, 1,3-Benzoxazol-4-ol is typically off-white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 135.12 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C7H5NO2 |
| Molecular Weight | 135.12 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Nitrogen Atoms | 1 |
Related Benzoxazol Standards
- Benzoxazol-7-ol (CAS 94242-04-3)
- 1-(1,3-Benzoxazol-7-yl)ethan-1-one (CAS 952182-89-7)
- [(1,3-benzoxazol-2-yl)methyl](methyl)amine (CAS 136727-12-3)
- 2-Ethyl-1,3-benzoxazol-5-amine (CAS 204771-75-5)
- (2-Methyl-1,3-benzoxazol-7-yl)methanol (CAS 136663-42-8)
- 1-(1,3-Benzoxazol-2-yl)ethan-1-ol (CAS 61533-67-3)
- 3-(1,2-benzoxazol-3-yl)propanenitrile (CAS 59899-56-8)
- 1-(1,3-benzoxazol-2-yl)cyclopropan-1-amine (CAS 1159878-36-0)
Recommended Standards
- 1,2-dihydropyrazolo[4,3-c]pyridin-3-one (CAS 3268-73-3)
- 1,5-Dihydro-4H-pyrrolo[3,2-d]pyrimidin-4-one (CAS 5655-01-6)
- 1,2-Benzisoxazol-6-ol (CAS 65685-55-4)
- 1,5-dihydropyrazolo[4,3-c]pyridin-4-one (CAS 41373-13-1)
- 4-{[4-(sec-Butyl)-1-piperazinyl]carbonyl}benzoic acid (CAS 896514-24-2)
- 5-Cyclohexyl-2-methoxyaniline (CAS 206559-52-6)
- 5-methyl-4,5-dihydro-1,3-thiazol-2-amine hydrochloride (CAS 10416-82-7)
- 2-Phenylbut-3-enamide (CAS 103205-11-4)
- (E)-5-(-But-1-en-1-yl)benzene-1,3-diol (CAS 1227271-68-2)
- (E)-N-(3,4-dichlorobenzyl)-3-(quinolin-3-yl)acrylamide (CAS 478039-48-4)
- N-Boc-3-(2-Bromo-2-ethoxycarbonylvinyl)-2-phenylindole (CAS 1017968-67-0)
- 9-Chloro-N-(2-(dimethylamino)ethyl)-5-methylacridine-4-carboxamide (CAS 253277-91-7)
- 2-Methoxy-4-trifluoromethylmethylbenzoate (CAS 286441-66-5)
- Tau Peptide (307-321) trifluoroacetate salt (CAS 330456-50-3)
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