4-Nitroisoxazol-5(2H)-one compound with pyridine (1:1) CAS 145640-15-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 145640-15-9 |
| Molecular Formula | C3H2N2O4 C5H5N |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Nitroisoxazol-5(2H)-one compound with pyridine (1:1) (CAS 145640-15-9) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C3H2N2O4 C5H5N. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C3H2N2O4 C5H5N |
| Molecular Weight | 209.16 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 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1998 |
| Nitrogen Atoms | 3 |
Related Nitroisoxazol Standards
- 2-Methyl-4-nitroisoxazol-5(2H)-one (CAS 138842-45-2)
- 4-Nitroisoxazol-5(2H)-one (CAS 145440-80-8)
- 1-(5-Nitroisoxazol-3-yl)ethanone (CAS 340014-77-9)
- 3-Methyl-4-nitroisoxazol-5-amine (CAS 41230-51-7)
- 2-((3-Methyl-4-nitroisoxazol-5-yl)amino)-2-oxoethyl acetate (CAS 41230-60-8)
- 1-(4-Nitroisoxazol-5-yl)ethanone (CAS 518994-53-1)
- 1-(3-Nitroisoxazol-5-yl)ethanone (CAS 54468-91-6)
- 1-(4-Nitroisoxazol-3-yl)ethanone (CAS 550301-44-5)
Recommended Standards
- 2-Chloro-4-methylthiophene (CAS 91505-25-8)
- 1,5-Dimethyl-N-((3-methyl-1-propyl-1H-pyrazol-4-yl)methyl)-1H-pyrazol-3-amine hydrochloride (CAS 1856080-44-8)
- (3-((2-Methoxyphenyl)carbamoyl)phenyl)boronic acid (CAS 1704069-21-5)
- methyl({[5-(trifluoromethyl)-1H-1,3-benzodiazol-2-yl]methyl})amine dihydrochloride (CAS 1632257-96-5)
- (2-(Ethoxycarbonyl)pyridin-4-yl)boronic acid (CAS 794461-69-1)
- 3,3'-(1,3-Phenylene)bis(propan-1-amine) (CAS 31748-67-1)
- Prolactin-Releasing Peptide (1-31) (rat) (CAS 215510-06-8)
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