5-Methyloxazolo[4,5-b]pyridin-2(3H)-one CAS 55656-25-2
| CAS No. | 55656-25-2 |
| Molecular Formula | C7H6N2O2 |
| Molecular Weight | 150.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Methyloxazolo[4,5-b]pyridin-2(3H)-one (CAS 55656-25-2) is a high-purity analytical reference standard with the molecular formula C7H6N2O2 and a molecular weight of 150.13 g/mol.
The molecular framework of 5-Methyloxazolo[4,5-b]pyridin-2(3H)-one (C7H6N2O2) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. 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.
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 5-Methyloxazolo[4,5-b]pyridin-2(3H)-one 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 | C7H6N2O2 |
| Molecular Weight | 150.13 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1972 |
| Nitrogen Atoms | 2 |
Related Methyloxazolo Standards
- 5-Methyloxazolo[5,4-b]pyridin-2-ol (CAS 120208-27-7)
- 1-Methyloxazolo[5,4-b]pyridin-2(1H)-one (CAS 144141-38-8)
- 2-Methyloxazolo[5,4-d]pyrimidin-7-amine (CAS 25680-37-9)
- 2-Methyloxazolo[4,5-c]pyridin-7-amine (CAS 118767-90-1)
- 2-Methyloxazolo[4,5-b]pyridin-6-amine (CAS 1367866-53-2)
- 2-Methyloxazolo[4,5-d]pyridazin-7-ol (CAS 1706459-41-7)
- N-Methyloxazolo[5,4-d]pyrimidin-7-amine (CAS 31010-40-9)
- 5-Methyloxazolo[5,4-d]pyrimidin-7-amine (CAS 25680-36-8)
Recommended Standards
- 5-Methylbenzo[c][1,2,5]oxadiazol-4-ol (CAS 55730-18-2)
- 5-Methylpyrrolo[3,4-c]pyrrole-1,3(2H,5H)-dione (CAS 86732-12-9)
- 5-Methyl-3-(oxazol-5-yl)isoxazole (CAS 850646-74-1)
- 6-Aminobenzo[d]oxazol-5-ol (CAS 783366-34-7)
- Tert-butyl (3,4-dimethoxyphenyl)carbamate (CAS 102421-43-2)
- 3-(3-((2-Chloro-6-fluorobenzyl)oxy)phenyl)-1-(2-fluorobenzyl)-1H-pyrazole (CAS 956783-86-1)
- 3-Iodo-N-(thiazol-5-ylmethyl)aniline (CAS 1341682-77-6)
- 6-Tert-Butyldimethylsilyloxy-4-(1-methylethenyl)-1-methyl-cyclohexane 1,2-epoxide (CAS 121289-19-8)
- 3-methyl-[1,2,4]triazolo[4,3-a]pyridine-5-carboxylic acid (CAS 1510395-35-3)
- 5-(3,4-Dichlorophenyl)-4-(3,4-dimethoxybenzoyl)-3-hydroxy-1-(pyridin-3-ylmethyl)-1H-pyrrol-2(5H)-one (CAS 618080-47-0)
- tert-butyl (3S)-3-hydroxy-2,2-dimethyl-azetidine-1-carboxylate (CAS 2227198-70-9)
- 1-(4-Bromo-3,5-difluorophenyl)thiourea (CAS 1263376-93-7)
- 2-Iodo-4-(trifluoromethoxy)aniline (CAS 845866-79-7)
- Peptide 433 (CAS CATO-CPTD788433)
Why CATO?
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