4-(4,5-Dihydrooxazol-2-yl)-1,2,5-oxadiazol-3-amine CAS 1431728-34-5
| CAS No. | 1431728-34-5 |
| Molecular Formula | C5H6N4O2 |
| Molecular Weight | 154.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies 4-(4,5-Dihydrooxazol-2-yl)-1,2,5-oxadiazol-3-amine (CAS 1431728-34-5), a certified reference material (molecular formula C5H6N4O2, MW 154.13 g/mol) for analytical method development and quality control.
Based on its molecular formula C5H6N4O2, 4-(4,5-Dihydrooxazol-2-yl)-1,2,5-oxadiazol-3-amine contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 154.13 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
Physical & Chemical Properties
| Molecular Formula | C5H6N4O2 |
| Molecular Weight | 154.13 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) | 5.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 4 |
Related Dihydrooxazol Standards
- 3-(4,5-Dihydrooxazol-2-yl)-5-methylisoxazole (CAS 7186-53-0)
- 5-(4,5-Dihydrooxazol-2-yl)-3-methylisoxazole (CAS 7186-60-9)
- Methyl 3-(4,5-dihydrooxazol-2-yl)propanoate (CAS 17612-21-4)
- 2-(4,5-Dihydrooxazol-2-yl)aniline (CAS 3416-93-1)
- 2-(4,5-Dihydrooxazol-2-yl)phenol (CAS 20237-92-7)
- 4-(4,5-Dihydrooxazol-2-yl)phenol (CAS 81428-58-2)
- 4-(4-Methyl-4,5-dihydrooxazol-2-yl)aniline (CAS 144232-55-3)
- 2-(4,5-Dihydrooxazol-2-yl)propan-1-ol (CAS 13670-31-0)
Recommended Standards
- 3-(3,3,3-trifluoropropoxy)prop-1-ene (CAS 1421602-07-4)
- 4-(Aziridin-1-yl)-1,2,5-oxadiazole-3-carboxamide (CAS 147194-49-8)
- N-(4-Amino-6-oxo-1,6-dihydropyridazin-3-yl)formamide (CAS 140662-77-7)
- 1-(3,3,3-Trifluoropropyl)cyclopropan-1-ol (CAS 1478430-73-7)
- tert-butyl N-{2-[(5-bromo-2-fluorophenyl)methyl]-3-hydroxypropyl}carbamate (CAS 1701938-87-5)
- 1,6-Bis((4,8-di-tert-butyl-2,10-dimethyl-12H-dibenzo[d,g][1,3,2]dioxaphosphocin-6-yl)oxy)hexane (CAS 68938-93-2)
- 2-(2-Chloro-5-nitrophenyl)pyridine (CAS 879088-40-1)
- 2-(1,3-benzoxazol-2-ylsulfanyl)ethan-1-ol (CAS 126828-31-7)
- Ethyl 5-cyano-1H-pyrazole-3-carboxylate (CAS 1809384-28-8)
- 2-(5-((2-Chlorophenoxy)methyl)-1H-tetrazol-1-yl)acetic acid (CAS 1266867-15-5)
- Cis-3-azabicyclo[3,3,0]oct-2-ene (CAS 1227703-21-0)
- 3-(6-Chloro-pyridin-3-yl)-acrylic acid ethyl ester (CAS 159153-39-6)
- 3-Oxo-3-(2,3,4-trimethoxyphenyl)propionic acidethyl ester (CAS 38975-83-6)
- Neuropeptide AF (human) (CAS 192387-38-5)
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