Diethyl 2-methyloxazole-4,5-dicarboxylate CAS 61151-88-0
| CAS No. | 61151-88-0 |
| Molecular Formula | C21H14N2O3S2 |
| Molecular Weight | 406.48 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Diethyl 2-methyloxazole-4,5-dicarboxylate (CAS 61151-88-0), a certified reference material (molecular formula C21H14N2O3S2, MW 406.48 g/mol) for analytical method development and quality control.
Diethyl 2-methyloxazole-4,5-dicarboxylate (C21H14N2O3S2) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures Diethyl 2-methyloxazole-4,5-dicarboxylate 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 | C21H14N2O3S2 |
| Molecular Weight | 406.48 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1974 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Related Diethyl Standards
- Diethyl 3-methyl-5-(((2-(methylthio)nicotinoyl)oxy)methyl)-1H-pyrrole-2,4-dicarboxylate (CAS 853584-14-2)
- Diethyl 1-(4-acetylphenyl)-5-phenyl-1H-pyrazole-3,4-dicarboxylate (CAS 96722-90-6)
- Diethyl 2,4-dimethyl-5-((triisopropylsilyl)methylene)cyclopenta-1,3-diene-1,3-dicarboxylate (CAS 1417407-35-2)
- 4,5-Diethyl 1-(2-{[(2-fluorophenyl)carbamoyl]amino}-2-oxoethyl)-1H-1,2,3-triazole-4,5-dicarboxylate (CAS 892278-50-1)
- Diethyl 2-benzamido-4-(2,2,2-trifluoro-1-hydroxyethyl)pentanedioate (CAS 1214827-37-8)
- Diethyl 4-(4-bromophenyl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate (CAS 58029-72-4)
- Diethyl 5-((3-(ethoxycarbonyl)-4,5-dimethyl-1H-pyrrol-2-yl)methyl)-3-methyl-1H-pyrrole-2,4-dicarboxylate (CAS 6625-25-8)
- Diethyl 5-((4-(ethoxycarbonyl)-3,5-dimethyl-1H-pyrrol-2-yl)methyl)-3-methyl-1H-pyrrole-2,4-dicarboxylate (CAS 911-70-6)
Recommended Standards
- BMS-582949, >98% (HPLC) (CAS 623152-17-0)
- Hippuryl-Lys-Val-OH (CAS 315229-41-5)
- 4-Hydroxy-9-(2-methoxyphenyl)-7-(thiophen-2-yl)thieno[2,3-b:4,5-b']dipyridin-2(1H)-one (CAS 290300-05-9)
- H-Lys-Pro-Tyr-OH (H-2558.0050) (CAS 290314-43-1)
- 4-Acetyl-5-methyl-1H-pyrazole-1-carboximidamide (CAS 210992-47-5)
- 1-Benzyl-2,4,5,6-tetramethylpiperidin-3-amine (CAS 1315367-69-1)
- Dibutylamine (CAS 111-92-2)
- 2-Bromo-1-(4-hydroxyphenyl)ethanone (CAS 168693-83-2)
- Daptomycin Impurity 11 (CAS CATO-C4X-137811)
- 2-(3,4-dichlorophenyl)-5-(methylsulfamoyl)benzoic acid (CAS 926225-12-9)
- (S)-2-(1-Hydroxy-2H-isoindol-2-yl)succinic acid (CAS 650625-14-2)
- Indometacin Impurity 16 (CAS CATO-C4X-147016)
- 6-Benzyl 1-ethyl (R)-6-azaspiro[2.5]Octane-1,6-dicarboxylate (CAS 1539277-94-5)
- Insulin Degludec Impurity 12 (CAS CATO-C4X-215712)
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