Methyl 2-chlorobenzo[d]oxazole-4-carboxylate CAS 1007112-35-7
| CAS No. | 1007112-35-7 |
| Molecular Formula | C9H6ClNO3 |
| Molecular Weight | 211.60 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Methyl 2-chlorobenzo[d]oxazole-4-carboxylate (CAS 1007112-35-7), molecular formula C9H6ClNO3 and molecular weight 211.60 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, Methyl 2-chlorobenzo[d]oxazole-4-carboxylate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 211.60 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C9H6ClNO3 |
| Molecular Weight | 211.60 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.) | 1988 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Methyl Standards
- Methyl 6-chlorobenzo[d]oxazole-2-carboxylate (CAS 1538430-09-9)
- 2-(2-Chlorobenzo[d]oxazol-6-yl)acetic acid (CAS 1546680-53-8)
- 2-(2-Chlorobenzo[d]oxazol-5-yl)acetic acid (CAS 1554259-82-3)
- 2-(4-Chlorobenzo[d]oxazol-2-yl)acetic acid (CAS 1803745-63-2)
- 2-(2-Chlorobenzo[d]oxazol-4-yl)acetic acid (CAS 1803794-81-1)
- 2-(2-Chlorobenzo[d]oxazol-7-yl)acetic acid (CAS 1806339-22-9)
- 2-(5-Chlorobenzo[d]isoxazol-3-yl)acetic acid (CAS 59899-91-1)
- Methyl 2-chlorobenzo[d]oxazole-6-carboxylate (CAS 819076-91-0)
Recommended Standards
- 1-[Chloro(difluoro)acetyl]-4,4-dimethyl-2-azetidinone (CAS 707-58-4)
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- n-Methyl-N-(2,2,2-trifluoroethyl)sulfamoyl chloride (CAS 104468-13-5)
- (4E)-3-(Chloromethyl)-4-(2-furylmethylene)-isoxazol-5(4H)-one 1142199-26-5 9234AC C9H6ClNO3 (CAS 1142199-26-5)
- trans-3-methylpiperidine-3,4-diol;hydrochloride (CAS 2173991-76-7)
- N-(4-((4-(dimethylamino)phenyl)imino)cyclohexa-2,5-dien-1-ylidene)-N-methylmethanaminium (CAS 47005-16-3)
- N-(Acenaphtho[1,2-d]thiazol-8-yl)cyclopropanecarboxamide (CAS 536729-71-2)
- tert-Butyl 4-((4-chloropyrimidin-2-yl)(methyl)amino)piperidine-1-carboxylate (CAS 1261233-28-6)
- (2-Ethoxynaphthalen-1-yl)(methyl)sulfane (CAS 1443309-27-0)
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- 1-(3-((Dimethylamino)methyl)-1,4-thiazepan-4-yl)-2-(naphthalen-2-yloxy)ethan-1-one (CAS 1448050-33-6)
- 3-Nitro-3'-(pyrrolidin-1-ylsulfonyl)-[1,1'-biphenyl]-4-carboxylic acid (CAS 1261981-74-1)
- 3-Amino-4-boronobenzoic acid (CAS 116378-39-3)
- D-[Asp]9-Semaglutide (CAS CATO-CPTD788631)
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