2-(4-Nitroisoxazol-3-yl)acetaldehyde CAS 87149-77-7
| CAS No. | 87149-77-7 |
| Molecular Formula | C5H4N2O4 |
| Molecular Weight | 156.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-(4-Nitroisoxazol-3-yl)acetaldehyde is closely related to a carbohydrate-derived structure, an amide group in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
2-(4-Nitroisoxazol-3-yl)acetaldehyde (CAS 87149-77-7), molecular formula C5H4N2O4 and molecular weight 156.10 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2-(4-Nitroisoxazol-3-yl)acetaldehyde (C5H4N2O4) contains a carbohydrate-derived structure, an amide group. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 156.10 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.
CATO manufactures 2-(4-Nitroisoxazol-3-yl)acetaldehyde 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 | C5H4N2O4 |
| Molecular Weight | 156.10 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, water |
| 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.) | 1981 |
| Nitrogen Atoms | 2 |
Related Nitroisoxazol Standards
- 1-(3-Nitroisoxazol-5-yl)ethanone (CAS 54468-91-6)
- 1-(4-Nitroisoxazol-3-yl)ethanone (CAS 550301-44-5)
- 1-(4-Nitroisoxazol-5-yl)ethanone (CAS 518994-53-1)
- 1-(5-Nitroisoxazol-3-yl)ethanone (CAS 340014-77-9)
- 2-Methyl-4-nitroisoxazol-5(2H)-one (CAS 138842-45-2)
- 3-Methyl-4-nitroisoxazol-5-amine (CAS 41230-51-7)
- 4-Nitroisoxazol-5(2H)-one (CAS 145440-80-8)
- 4-Nitroisoxazol-5-amine (CAS 861543-32-0)
Recommended Standards
- 2-(2,5-Dioxoimidazolidin-4-ylidene)acetic acid (CAS 5427-28-1)
- 2,2,2-Trifluoro-1-(oxetan-3-yl)ethanol (CAS 2306272-10-4)
- 2-((1H-1,2,4-triazol-5-yl)amino)-2-oxoacetic acid (CAS 39958-42-4)
- 2,2,2-Trifluoroethyl propionate (CAS 82259-34-5)
- N-(2-(Benzo[d]oxazol-2-yl)ethyl)-4-pentylbenzenesulfonamide (CAS 926283-44-5)
- 6-Nitroimidazo[1,2-a]pyrimidine (CAS 1027511-37-0)
- 3-Bromo-5-iodo-4-(2,2,2-trifluoroethyl)-1H-pyrazole (CAS 2641466-39-7)
- 5-Bromo-1-(4-methoxyphenyl)pyridin-2(1h)-one (CAS 914918-82-4)
- 4-Amino-6-bromoquinoline-3-carboxylic acid (CAS 1216263-67-0)
- Tegoprazan Impurity 122 (CAS 2351939-46-1)
- 2-Chloro-6-(difluoromethyl)-3,4-diiodopyridine (CAS 1806826-35-6)
- 4-(6-Fluoropyridin-3-yl)-6-hydroxypyrazolo[1,5-a]pyridine-3-carbonitrile (CAS 2222654-09-1)
- 1-Ethyl-3,5-dimethoxycyclohexa-2,5-diene-1-carboxylic acid (CAS 108864-34-2)
- Allo-D-Ile17-Tirzepatide (CAS CATO-CPTD788962)
Why CATO?
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