5-(2-Chloroethyl)-4-methyloxazole CAS 823-51-8
| CAS No. | 823-51-8 |
| Molecular Formula | C20H21F3N2OS |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 5-(2-Chloroethyl)-4-methyloxazole (C20H21F3N2OSHCl) is characterized by a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies 5-(2-Chloroethyl)-4-methyloxazole (CAS 823-51-8), a certified reference material (molecular formula C20H21F3N2OSHCl, MW 430.91 g/mol) for analytical method development and quality control.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 5-(2-Chloroethyl)-4-methyloxazole meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C20H21F3N2OS HCl |
| Molecular Weight | 430.91 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Chloroethyl Standards
- 3-(2-Chloroethyl)-5-methoxy-1H-indole (CAS 1000681-51-5)
- 2-Chloroethyl (2,6-Dimethylphenyl)-carbamic Acid Ester (CAS 100129-63-3)
- 2-[(2-Chloroethyl)amino]ethyl benzoate HCl (CAS 100129-68-8)
- 1,2-Bis(2-chloroethyl)disulfane (CAS 1002-41-1)
- 3-(2-Chloroethyl)quinuclidine hydrochloride (CAS 100383-73-1)
- [4-(2-Chloroethyl)phenyl]methanol (CAS 1008517-68-7)
- 1-(2-Chloroethyl)-1H-pyrazole-4-carboxylic acid (CAS 1011404-53-7)
- 4-(1-Chloroethyl)-3-fluoropyridine (CAS 1016228-83-3)
Recommended Standards
- Axitinib-13C-d3 (CAS 1261432-00-1)
- 2-(2-Chloro-5-(difluoromethyl)-4-iodopyridin-3-yl)acetic acid (CAS 1805408-01-8)
- 2-((3,3-Dimethyl-2-oxobutyl)thio)-6-methyl-4-(trifluoromethyl)nicotinonitrile (CAS 625377-56-2)
- (1S,3S,4R)-3-Hydroxy-7-azabicyclo[2.2.1]heptane-1-carboxylic acid (CAS 767616-64-8)
- 4,6-dibromo-2-(bromomethyl)pyrimidine (CAS 1803610-39-0)
- 5-Chloro-1,7-dimethylindolin-2-yl-3-thiosemicarbazide (CAS 1798421-15-4)
- 1-(3-Bromo-2-methoxyphenyl)-2,2,2-trifluoroethan-1-one (CAS 1820639-77-7)
- 2-Propanol, 2-methyl-, hafnium(4+) salt 2172-02-3 CTK4E7560 (CAS 2172-02-3)
- 1,3,6-Trimethylpyrene (CAS 27979-20-0)
- Semaglutide Impurity 145 (CAS CATO-C4X-2226145)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com