4-[(4-chloro-1h-pyrazol-1-yl)methyl]-5-methyl-1,2-oxazole-3-carboxylic acid CAS 956449-75-5
| CAS No. | 956449-75-5 |
| Molecular Formula | C9H8ClN3O3 |
| Molecular Weight | 241.63 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-[(4-chloro-1h-pyrazol-1-yl)methyl]-5-methyl-1,2-oxazole-3-carboxylic acid is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 4-[(4-chloro-1h-pyrazol-1-yl)methyl]-5-methyl-1,2-oxazole-3-carboxylic acid (CAS 956449-75-5), a certified reference material (molecular formula C9H8ClN3O3, MW 241.63 g/mol) for analytical method development and quality control.
4-[(4-chloro-1h-pyrazol-1-yl)methyl]-5-methyl-1,2-oxazole-3-carboxylic acid (C9H8ClN3O3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 4-[(4-chloro-1h-pyrazol-1-yl)methyl]-5-methyl-1,2-oxazole-3-carboxylic 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 | C9H8ClN3O3 |
| Molecular Weight | 241.63 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.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related chloro Standards
- 4-Chloro-1-((1-methyl-1H-pyrazol-4-yl)methyl)-3-nitro-1H-pyrazole (CAS 1005643-57-1)
- 2-(5-Chloro-2-oxobenzo[d]oxazol-3(2H)-yl)acetohydrazide (CAS 1092284-61-1)
- 7-Chloro-4,6-dimethoxy-2,3-dihydro-1H-indole-2,3-dione (CAS 1164251-88-0)
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- 6-Chloro-3,4-dihydro-3-oxo-2H-1,4-benzoxazine-8-carboxylic Acid Methyl Ester (CAS 123040-75-5)
- Ethyl 7-chloro-5-hydroxyimidazo[1,2-c]pyrimidine-2-carboxylate (CAS 1639974-70-1)
- 2-(5-Chloro-7-methoxybenzo[d]isoxazol-3-yl)acetic acid (CAS 1708288-36-1)
- 3-(6-Chloro-2-oxo-1,3-benzoxazol-3(2h)-yl)propanoic acid (CAS 17124-56-0)
Recommended Standards
- 3-Chloro-6-(2-hydroxyethyl)pyrazolo[1,5-a]pyrimidine-2-carboxylic acid (CAS 842974-84-9)
- 5-Chloro-1,3-dimethyl-6-nitro-1,3-dihydro-2H-benzo[d]imidazol-2-one (CAS 899374-45-9)
- 3-(5-Chloro-2-oxo-1,3-benzoxazol-3(2H)-yl)propanoic acid (CAS 41405-50-9)
- Ethyl 2-chloro-8-hydroxyimidazo[1,2-b]pyridazine-7-carboxylate (CAS 2434602-64-7)
- Vinyl 2,2-dimethyloctanoate (CAS 45115-34-2)
- (S)-2-((S)-1-(3-Mercaptopropanoyl)pyrrolidine-2-carboxamido)propanoic acid (CAS 97009-77-3)
- 4'-Isopropyl-[1,1'-biphenyl]-2-carboxylic acid (CAS 84392-25-6)
- 2-[(Benzamide)amino]propanoic acid (CAS 33653-68-8)
- Ethyl 4-(3-chlorobenzoyl)isoxazole-3-carboxylate (CAS 338761-68-5)
- 4-(2-Ethyl-1h-imidazol-1-yl)-2-(methylamino)butanamide (CAS 1341462-27-8)
- 1-(2-(5-Ethylthiophen-2-yl)-2-oxoethyl)-1h-1,2,4-triazole-3-carbonitrile (CAS 1240952-20-8)
- Ethyl 5-iodo-1-methyl-1H-pyrazole-4-carboxylate (CAS 754219-01-7)
- N6-Ethanethioyl-L-lysine (CAS 146321-18-8)
- Mast Cell Degranulating Peptide (CAS 83856-13-7)
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