5-Cyclopropylisoxazole-4-carbaldehyde CAS 1557510-07-2
| CAS No. | 1557510-07-2 |
| Molecular Formula | C7H7NO2 |
| Molecular Weight | 137.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
5-Cyclopropylisoxazole-4-carbaldehyde (CAS 1557510-07-2), molecular formula C7H7NO2 and molecular weight 137.14 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 5-Cyclopropylisoxazole-4-carbaldehyde (C7H7NO2) 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.
CATO manufactures 5-Cyclopropylisoxazole-4-carbaldehyde 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 | C7H7NO2 |
| Molecular Weight | 137.14 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1992 |
| Nitrogen Atoms | 1 |
Related Cyclopropylisoxazole Standards
- 3-Cyclopropylisoxazole-5-carbaldehyde (CAS 121604-59-9)
- 5-Cyclopropylisoxazole-3-carbaldehyde (CAS 1430463-82-3)
- 3-Cyclopropylisoxazole-4-carbaldehyde (CAS 1536944-73-6)
- 5-Cyclopropylisoxazole-4-carboxylic Acid (CAS 124845-04-1)
- 4-Cyclopropylisoxazole-3-carboxylic acid (CAS 1781638-72-9)
- 3-Cyclopropylisoxazole-5-carboxylic acid (CAS 870704-25-9)
- 5-cyclopropylisoxazole-3-carboxylic acid (CAS 110256-15-0)
- 3-Cyclopropylisoxazole (CAS 1597989-56-4)
Recommended Standards
- N-(3-Amino-2-pyridinyl)formamide, 97% (CAS 158525-50-9)
- 4-Amino-3-hydroxybenzaldehyde (CAS 153659-37-1)
- N-Hydroxyisonicotinimidamide (CAS 1594-57-6)
- 4H,5H,6H,7H-furo[3,2-c]pyridin-4-one (CAS 1528800-56-7)
- 4-{[(4-chlorophenyl)sulfanyl]methyl}-2-phenyl-6-(phenylsulfanyl)pyrimidine (CAS 303147-11-7)
- 2,2,2-Trichloro-N-(2,4,5-trichlorophenyl)acetamide (CAS 33560-57-5)
- Ethyl (1h-indole-2-carbonyl)glycinate (CAS 69808-66-8)
- Oxazole, 2,2′-(methylenedi-2,1-phenylene)bis[4,5-dihydro-4-(phenylmethyl)-, (4S,4′S)- (CAS 852043-76-6)
- (6-Bromobenzo[b]thiophen-2-yl)methanamine (CAS 1780039-50-0)
- Nafcillin (CAS 147-52-4)
- 6,7-Dichloro-2,4-bis(4-fluorophenyl)phthalazin-1(2H)-one (CAS 339009-77-7)
- (3aS,8aR)-2-(6-Cyclopropylpyridin-2-yl)-8,8a-dihydro-3aH-indeno[1,2-d]oxazole (CAS 2417767-35-0)
- 3-(Methoxydimethylsilyl)propyl methacrylate (CAS 66753-64-8)
- Semaglutide Impurity 21(HO-Ste-L-γGlu-AEEA-AEEA-OH) (CAS 1335440-44-2)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com