1-(ISoxazol-5-yl)ethan-1-one hydrochloride CAS 2055840-51-0
| CAS No. | 2055840-51-0 |
| Molecular Formula | C5H5NO2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-(ISoxazol-5-yl)ethan-1-one hydrochloride (CAS 2055840-51-0) is a high-purity analytical reference standard with the molecular formula C5H5NO2HCl and a molecular weight of 147.56 g/mol.
The molecular framework of 1-(ISoxazol-5-yl)ethan-1-one hydrochloride (C5H5NO2HCl) is characterized by an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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 1-(ISoxazol-5-yl)ethan-1-one hydrochloride 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 | C5H5NO2 HCl |
| Molecular Weight | 147.56 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1997 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related ISoxazol Standards
- Ethyl 2-(isoxazol-3(2h)-ylideneamino)-2-oxoacetate (CAS 1001634-98-5)
- 1-(Isoxazol-3-yl)ethanamine (CAS 1008985-14-5)
- N-(5-(Isoxazol-5-yl)-1,3,4-oxadiazol-2-yl)-1,5-dimethyl-1H-pyrazole-3-carboxamide (CAS 1013826-11-3)
- Methyl 3-(isoxazol-3-ylmethyl)-2-oxo-2,3-dihydrobenzo[d]oxazole-5-carboxylate (CAS 1020243-01-9)
- 2-(5-(Isoxazol-3-ylmethylene)-4-oxo-2-thioxothiazolidin-3-yl)acetic acid (CAS 1022-55-5)
- Isoxazol-4-ylmethanol (CAS 102790-36-3)
- 3-Isoxazol-4-yl-propan-1-ol (CAS 10421-09-7)
- 2-isoxazol-5-yl-4-methylphenol (CAS 104516-57-6)
Recommended Standards
- (5,5-difluoro-1-methyl-2-piperidyl)methanamine (CAS 1255666-90-0)
- 2-Chloro-3-(trifluoromethyl)isonicotinonitrile (CAS 1448777-33-0)
- 7-Hydroxy-3-(1-phenyl-1H-pyrazol-4-yl)-4H-1-benzopyran-4-one (CAS 61034-11-5)
- 4-Bromo-2-methoxy-5-methylpyridine (CAS 1227494-49-6)
- 2-(4-Chloro-2-(difluoromethyl)-6-(trifluoromethyl)pyridin-3-yl)acetic acid (CAS 1805416-34-5)
- Propafenone Impurity 28 (CAS CATO-C4X-132228)
- Desloratadine Impurity 17 (CAS 169253-26-3)
- Ethyl 2-(6-chloro-3-oxo-2,3-dihydro-4H-benzo[b][1,4]oxazin-4-yl)acetate (CAS 26494-57-5)
- 6,8-Dihydro-5H-imidazo[2,1-c][1,4]oxazine-3-carbaldehyde (CAS 623564-43-2)
- Semaglutide Impurity 144 (CAS 394210-59-4)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com