(4S,5S)-5-Isopropyl-4-methyl-4,5-dihydroisoxazole-3-carbaldehyde CAS 131362-99-7
| CAS No. | 131362-99-7 |
| Molecular Formula | C8H13NO2 |
| Molecular Weight | 155.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, (4S,5S)-5-Isopropyl-4-methyl-4,5-dihydroisoxazole-3-carbaldehyde is typically white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 155.19 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 supplies (4S,5S)-5-Isopropyl-4-methyl-4,5-dihydroisoxazole-3-carbaldehyde (CAS 131362-99-7), a certified reference material (molecular formula C8H13NO2, MW 155.19 g/mol) for analytical method development and quality control.
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.
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.
Physical & Chemical Properties
| Molecular Formula | C8H13NO2 |
| Molecular Weight | 155.19 g/mol |
| Appearance | White to pale yellow crystalline powder. (faint amine-like odor) |
| 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1994 |
| Nitrogen Atoms | 1 |
Recommended Standards
- 2-Isopropyl-4,4-dimethyloxazol-5(4H)-one (CAS 131236-78-7)
- 5-(tert-Butyl)-2-methoxyoxazole (CAS 1314974-95-2)
- 3-(3,5-Dimethylisoxazol-4-yl)propan-1-ol (CAS 129975-10-6)
- 1-Oxa-7-azaspiro[4.5]Decan-2-one (CAS 1315303-69-5)
- 2-({2-[(3,4-dimethoxyphenyl)amino]-2-oxoethyl}thio)benzoic acid (CAS 440347-44-4)
- 1-(Cyanosulfanyl)propan-2-one (CAS 3029-48-9)
- 1-(2-Methylphenyl)pentan-1-amine (CAS 135921-90-3)
- (5-Chloro-2-(methylsulfonyl)pyrimidin-4-yl)(2-methylindolizin-3-yl)methanone (CAS 327085-83-6)
- 4,4'-(1,3,6,8-Tetraoxo-1,3,6,8-tetrahydrobenzo[lmn][3,8]phenanthroline-2,7-diyl)dibenzonitrile (CAS 131032-66-1)
- 1-(2-Bromo-1,1-difluoroethyl)-4-methoxybenzene (CAS 762292-70-6)
- 2-((5-(Hydroxymethyl)-1-(2-(isopropylamino)-2-oxoethyl)-1H-imidazol-2-yl)thio)-N-(2-(trifluoromethyl)phenyl)acetamide (CAS 921867-07-4)
- Ethyl 3-amino-2,2-dimethylbutanoate (CAS 1350712-25-2)
- 5-Amino-2-butyl-1H-isoindole-1,3(2H)-dione (CAS 68930-97-2)
- β-Bag Cell Peptide (Aplysia californica) (CAS 109024-47-7)
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