5,5'-Biisoxazole CAS 23296-57-3
| CAS No. | 23296-57-3 |
| Molecular Formula | C6H4N2O2 |
| Molecular Weight | 136.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5,5'-Biisoxazole 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 5,5'-Biisoxazole (CAS 23296-57-3), a certified reference material (molecular formula C6H4N2O2, MW 136.11 g/mol) for analytical method development and quality control.
5,5'-Biisoxazole (C6H4N2O2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 5,5'-Biisoxazole 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 | C6H4N2O2 |
| Molecular Weight | 136.11 g/mol |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Nitrogen Atoms | 2 |
Related Biisoxazole Standards
Recommended Standards
- 5-(Furan-2-yl)-1h-tetrazole (CAS 23650-33-1)
- 5,5'-Bioxazole (CAS 72030-72-9)
- 4-Hydroxyfuro[3,2-d]pyrimidine (CAS 655255-08-6)
- 5-Amino-2-oxo-2,3-dihydropyrimidine-4-carbonitrile (CAS 371203-93-9)
- (3AS,9aS)-3a-Methyl-4-(3-trifluoromethyl-benzyl)-decahydro-1,4-diaza-cyclopentacycloocten-5-one (CAS 1442080-81-0)
- ethyl 2-cyano-2-ethyl-3-methylpentanoate (CAS 71172-92-4)
- 1-(2-Amino-1H-benzo[d]imidazol-1-yl)-2-chloroethanone (CAS 344413-06-5)
- Pitavastatin Impurity 27 (CAS CATO-C4X-103727)
- (S)-3-(2,5-Dichlorobenzyl)piperazin-2-one (CAS 1240589-39-2)
- 3-Hydroxy-1H-indole-6-carbonitrile (CAS 874303-93-2)
- 3,4-Dichloro-N-ethylbenzenesulfonamide (CAS 6326-17-6)
- 2-{[2-(3-Bromo-4-methylbenzoyl)hydrazino]carbonyl}cyclohexanecarboxylic acid (CAS 900597-89-9)
- (3S)-3-Methanesulfonylpiperidine (CAS 1234576-82-9)
- Serpent Peptide 2AcOH (CAS 823202-99-9(free base))
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