2-Oxo-2,3-dihydrobenzo[d]oxazole-5-carbaldehyde CAS 581102-27-4
| CAS No. | 581102-27-4 |
| Molecular Formula | C8H5NO3 |
| Molecular Weight | 163.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 2-Oxo-2,3-dihydrobenzo[d]oxazole-5-carbaldehyde.
2-Oxo-2,3-dihydrobenzo[d]oxazole-5-carbaldehyde (CAS 581102-27-4), molecular formula C8H5NO3 and molecular weight 163.13 g/mol, is a CATO reference standard with documented purity and traceability.
2-Oxo-2,3-dihydrobenzo[d]oxazole-5-carbaldehyde (C8H5NO3) 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).
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.
CATO manufactures 2-Oxo-2,3-dihydrobenzo[d]oxazole-5-carbaldehyde 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 | C8H5NO3 |
| Molecular Weight | 163.13 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.) | 1984 |
| Nitrogen Atoms | 1 |
Related Oxo Standards
- 2-Oxo-2,3-dihydrobenzo[d]oxazole-7-carbaldehyde (CAS 926004-14-0)
- 3,4-Dihydrobenzo[f][1,4]oxazepin-5(2H)-one (CAS 703-51-5)
- 3,5-Dihydrobenzo[e][1,4]oxazepin-2(1H)-one (CAS 3693-08-1)
- 4,5-Dihydrobenzo[b]oxepin-2(3H)-one (CAS 3041-17-6)
- 2,3-Dihydrobenzo[b][1,4]dioxine-2-carbaldehyde (CAS 64179-67-5)
- 2,3-dihydrobenzo[b][1,4]dioxine-5-carbaldehyde (CAS 29668-43-7)
- 2,3-Dihydrobenzo[d]oxazole-6-carboxylic acid (CAS 1252686-56-8)
- (2,3-Dihydrobenzo[b][1,4]dioxin-5-yl)methanamine (CAS 261633-71-0)
Recommended Standards
- 2-Oxo-2,3-dihydro-1,3-benzoxazole-6-carbaldehyde (CAS 54903-15-0)
- 2-Nitrobenzofuran (CAS 33094-66-5)
- 3-(Difluoromethoxy)-1-methyl-1H-pyrazol-4-amine (CAS 2041076-49-5)
- 2-Nitro-1H-benzo[d]imidazole (CAS 5709-67-1)
- Iofetamine hydrochloride (CAS 95896-48-3)
- 3-Fluoro-4-(propane-2-sulfonamido)benzene-1-sulfonyl chloride (CAS 1183324-12-0)
- 1,4-Dimethyl-1,4,7-triazonane (CAS 141213-10-7)
- 8-Amino-3-hydroxyisoquinoline (CAS 1374652-00-2)
- 4-Chloro-1-[(2,6-dichlorophenyl)methyl]-1h-pyrazol-3-amine (CAS 1004194-66-4)
- (2-(Allyloxy)ethoxy)trimethylsilane (CAS 24628-30-6)
- N-(3-Hydrazinylphenyl)acetamide (CAS 521097-90-5)
- 4-Chloro-6-(methylthio)-5-(1H-pyrrol-1-yl)pyrimidine (CAS 1713602-50-6)
- 6-Bromo-2-(methylsulfinyl)-8,9-dihydroimidazo[1',2':1,6]pyrido[2,3-d]pyrimidine (CAS 2761069-97-8)
- Semaglutide Impurity 186 (CAS CATO-C4X-2226186)
Why CATO?
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