Isobenzofuro[5,6-d]oxazole CAS 130700-87-7
| CAS No. | 130700-87-7 |
| Molecular Formula | C9H5NO2 |
| Molecular Weight | 159.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Isobenzofuro[5,6-d]oxazole meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Isobenzofuro[5,6-d]oxazole (CAS 130700-87-7), molecular formula C9H5NO2 and molecular weight 159.14 g/mol, is a CATO reference standard with documented purity and traceability.
Isobenzofuro[5,6-d]oxazole (C9H5NO2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H5NO2 |
| Molecular Weight | 159.14 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Nitrogen Atoms | 1 |
Related Isobenzofuro Standards
- Isobenzofuro[4,5-d]oxazole (CAS 117272-33-0)
- Isobenzofuro[4,5-d]isoxazole (CAS 98822-08-3)
- Isobenzofuro[5,4-d]oxazole (CAS 214489-59-5)
- Isobenzofuro[5,6-d]isoxazole (CAS 267-37-8)
- 1H-Isobenzofuro[5,6-d]imidazole-5,7-dione (CAS 167993-16-0)
- 549-06-4 7H-Isobenzofuro(4,5-b)(1,4)benzodioxepin-11-carboxaldehyde, 1,3-dihydro-1,4-dihydroxy-10-methoxy-5,8-dimethyl-3,7-dioxo- 1,3-Dihydro-1,4-dihydroxy-10-methoxy-5,8-dimethyl-3,7-dioxo-7H-isobenzofuro(4,5-b)(1,4)benzodioxepin-11-carboxaldehyde NSC 87511 Stictic acid (CAS 549-06-4)
Recommended Standards
- trans-2-Nitro-cyclopropanecarboxylic acid ethyl ester (CAS 1287760-02-4)
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- (2R,4R)-pyrrolidine-2,4-dicarboxylic acid (CAS 130830-78-3)
- Methyl-(2-trifluoromethylsulfanyl-ethyl)-amine (CAS 1208079-68-8)
- N-(2-(1H-Benzo[d]imidazol-1-yl)ethyl)formamide (CAS 99055-78-4)
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- 5-Chloro-2-fluoronicotinic acid methyl ester (CAS 1214324-17-0)
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- 3-Bromo-2,5-dimethylbenzoic acid (CAS 1255209-34-7)
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Why CATO?
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