Ethyl 5-methyl-6-nitroimidazo[1,2-a]pyridine-2-carboxylate CAS 158980-19-9
| CAS No. | 158980-19-9 |
| Molecular Formula | C11H11N3O4 |
| Molecular Weight | 249.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Ethyl 5-methyl-6-nitroimidazo[1,2-a]pyridine-2-carboxylate (CAS 158980-19-9), molecular formula C11H11N3O4 and molecular weight 249.22 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Ethyl 5-methyl-6-nitroimidazo[1,2-a]pyridine-2-carboxylate (C11H11N3O4) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 249.22 g/mol, it falls into the medium-molecular-weight range. 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.
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 | C11H11N3O4 |
| Molecular Weight | 249.22 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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 |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2002 |
| Nitrogen Atoms | 3 |
Recommended Standards
- 2'-Azidoethyl a-mannopyranoside (CAS 155196-97-7)
- 4-(3-Nitrobenzoyl)piperazin-2-one (CAS 160822-43-5)
- Methyl 3-(1,3-dioxoisoindolin-2-yl)-2-hydroxypropanoate (CAS 153744-36-6)
- Ethyl 3-methyl-6-nitroimidazo[1,2-a]pyridine-2-carboxylate (CAS 1612861-50-3)
- 1-(4-Benzyl-3-oxo-3,4-dihydropyrido[2,3-b]-pyrazin-2-yl)piperidine-3-carboxylic acid (CAS 1242875-39-3)
- Tert-butyl phenyl(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzyl)carbamate (CAS 1073371-71-7)
- 1-Bromo-4-(3-chloropropyl)benzene (CAS 74003-34-2)
- 1-Benzyl-3,5-dibromo-1H-pyrazole (CAS 1594950-01-2)
- 3-Amino-N-(2-methoxy-5-methylphenyl)-2-methylpropanamide hydrochloride (CAS 1836674-70-4)
- Preptin (human) trifluoroacetate salt (CAS 315197-69-4)
- (Z)-retro-α-Ionol (CAS 55093-47-5)
- Benzyl (4-(4-hydroxyphenyl)butyl)carbamate (CAS 587880-25-9)
- 5,5'-DImethyldipyrromethane (CAS 99840-54-7)
- Liraglutide Impurity 22 (CAS 536721-25-2)
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