(6-Chloro-2-oxo-1,3-benzoxazol-3(2H)-yl)acetic acid CAS 19739-40-3
| CAS No. | 19739-40-3 |
| Molecular Formula | C9H6ClNO4 |
| Molecular Weight | 227.60 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 227.60 g/mol gives (6-Chloro-2-oxo-1,3-benzoxazol-3(2H)-yl)acetic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
(6-Chloro-2-oxo-1,3-benzoxazol-3(2H)-yl)acetic acid (CAS 19739-40-3) is a high-purity analytical reference standard with the molecular formula C9H6ClNO4 and a molecular weight of 227.60 g/mol.
Based on its molecular formula C9H6ClNO4, (6-Chloro-2-oxo-1,3-benzoxazol-3(2H)-yl)acetic acid contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 227.60 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 (6-Chloro-2-oxo-1,3-benzoxazol-3(2H)-yl)acetic acid 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 | C9H6ClNO4 |
| Molecular Weight | 227.60 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
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