4-(Chloromethyl)-5-methylisoxazole CAS 104988-43-4
| CAS No. | 104988-43-4 |
| Molecular Formula | C5H6ClNO |
| Molecular Weight | 131.56 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-(Chloromethyl)-5-methylisoxazole is closely related to an amide group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
4-(Chloromethyl)-5-methylisoxazole (CAS 104988-43-4), molecular formula C5H6ClNO and molecular weight 131.56 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4-(Chloromethyl)-5-methylisoxazole (C5H6ClNO) contains an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 131.56 g/mol, it falls into the low-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 4-(Chloromethyl)-5-methylisoxazole 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 | C5H6ClNO |
| Molecular Weight | 131.56 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| 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.) | 1986 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Chloromethyl Standards
- 5-(Chloromethyl)-2-methyl-1,3-oxazole (CAS 1196146-69-6)
- 2-(Chloromethyl)-4-methyl-1,3-oxazole (CAS 1196157-12-6)
- 4-(Chloromethyl)-5-methyloxazole (CAS 1240612-11-6)
- 4-(Chloromethyl)-2-methyl-2H-1,2,3-triazole (CAS 1314973-93-7)
- 3-(Chloromethyl)-5-methyl-4H-1,2,4-triazole (CAS 1377187-35-3)
- 4-(Chloromethyl)-2-methyloxazole (CAS 141399-53-3)
- 5-(Chloromethyl)-1-methyl-1,2,4-triazole (CAS 153851-72-0)
- 3-(chloromethyl)-4-methyl-4H-1,2,4-triazole (CAS 740056-61-5)
Recommended Standards
- 4-Chloro-1-methyl-1h-pyrazol-3-amine (CAS 1006349-08-1)
- 4-Chloro-3,5-dimethylisoxazole (CAS 10557-86-5)
- 2-Chloro-5-fluoropyridine (CAS 31301-51-6)
- 4-Chloro-1-methyl-1H-pyrazol-5-amine (CAS 105675-84-1)
- 2,2'-Bis(trifluoromethyl)-5-(difluoromethoxy)biphenyl (CAS 1261605-65-5)
- 3-Bromo-6-methoxyisobenzofuran-1(3H)-one (CAS 40125-47-1)
- 4-(Chloromethyl)benzyl alcohol (CAS 16473-35-1)
- 4-(phenoxymethyl)benzene-1-carboximidamide hydrochloride (CAS 57928-77-5)
- 4-(2-Ethoxyethoxy)-3-oxo-butyric acid ethyl ester (CAS 677326-77-1)
- 2-(Prop-2-yn-1-ylthio)benzo[d]oxazole (CAS 52924-71-7)
- (R)-tert-Butyl (5,6,7,8-tetrahydroquinoxalin-5-yl)carbamate (CAS 911826-35-2)
- 1-(4-Methoxypyridin-2-yl)ethan-1-ol (CAS 105552-58-7)
- 4-(Difluoromethyl)-5-fluoro-2-methoxy-3-(trifluoromethyl)pyridine (CAS 1805565-74-5)
- Neuroendocrine Regulatory Peptide-4 (human, mouse, rat) (H-7266.1000) (CAS 922704-18-5)
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