2-Oxo-2,3-dihydrobenzo[d]oxazole-5-carboxylic acid CAS 65422-72-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 65422-72-2 |
| Molecular Formula | C8H5NO4 |
| Molecular Weight | 179.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Oxo-2,3-dihydrobenzo[d]oxazole-5-carboxylic acid (CAS 65422-72-2) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C8H5NO4. Molecular weight: 179.13 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C8H5NO4 |
| Molecular Weight | 179.13 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
| Nitrogen Atoms | 1 |
Related Oxo Standards
- 2-Oxo-2,3-dihydrobenzo[d]oxazole-4-carboxylic acid (CAS 100960-55-2)
- 2-Oxo-2,3-dihydrobenzo[d]oxazole-6-carboxylic Acid (CAS 54903-16-1)
- 2,3-Dihydrobenzo[b][1,4]dioxine-2-carboxamide (CAS 33070-04-1)
- 2,3-Dihydrobenzo[b][1,4]dioxine-5-carboxamide (CAS 349550-81-8)
- 2,3-Dihydrobenzo[b][1,4]dioxine-6-carbaldehyde oxime (CAS 31127-39-6)
- 2-Oxo-2,3-dihydrobenzo[d]thiazole-6-carbaldehyde (CAS 438634-98-1)
- (R)-1-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)ethan-1-amine (CAS 1157581-13-9)
- (S)-1-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)ethan-1-amine (CAS 1212163-78-4)
Recommended Standards
- 2-Nitroterephthalaldehyde (CAS 39909-72-3)
- 2-Nitrobenzofuran-7-ol (CAS 40739-73-9)
- 3-(Furan-2-yl)isoxazole-5-carboxylic acid (CAS 901927-31-9)
- Methyl (4-bromo-3-methylphenyl)carbamate (CAS 51661-29-1)
- 4-(1,2,2-Triphenylvinyl)aniline (CAS 919789-80-3)
- 2-Phenyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzo[d]thiazole (CAS 936901-98-3)
- 2-chloro-1-(2-hydroxy-3,4-dimethoxyphenyl)ethanone (CAS 7507-92-8)
- Methyl 2-(chloromethyl)-4-oxo-3,4-dihydroquinazoline-5-carboxylate (CAS 1140964-67-5)
- Sodium 2-chloroethanesulfonatehydrate (CAS 1089719-72-1)
- Peptide 437 (CAS CATO-CPTD788437)
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