3-(Chloromethyl)-5-methylisoxazole CAS 35166-37-1
| CAS No. | 35166-37-1 |
| Molecular Formula | C5H6ClNO |
| Molecular Weight | 131.56 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 3-(Chloromethyl)-5-methylisoxazole.
CATO supplies 3-(Chloromethyl)-5-methylisoxazole (CAS 35166-37-1), a certified reference material (molecular formula C5H6ClNO, MW 131.56 g/mol) for analytical method development and quality control.
Structurally, 3-(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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 3-(Chloromethyl)-5-methylisoxazole meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
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.) | 1967 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Chloromethyl Standards
- 4-(Chloromethyl)-5-methylisoxazole (CAS 104988-43-4)
- 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)
Recommended Standards
- 3-(chloromethyl)-4-methyl-4H-1,2,4-triazole (CAS 740056-61-5)
- 3-Chloro-1,5-dimethyl-1H-1,2,4-triazole (CAS 56616-94-5)
- 2-Chloro-N-2-propyn-1-ylacetamide (CAS 7458-03-9)
- 3-Chloro-4,5-dimethyl-4H-1,2,4-triazole (CAS 56616-85-4)
- Ethyl 2-(2-chlorophenoxy)acetate (CAS 52094-97-0)
- 5-fluoro-1H-pyrrolo[2,3-b]pyridin-6-amine (CAS 1190321-94-8)
- (R)-2-(1-Methoxy-1-methyl-ethyl)-pyrrolidine (CAS 1212111-83-5)
- 1-Isobutyl-4-methylpiperidine (CAS 55275-23-5)
- 1-Cyano-1-methylethyl methanesulfonate (CAS 138999-33-4)
- 4,5,6,7-Tetrahydro-2H-indazol-3-ol (CAS 402602-24-8)
- pyrazolo[1,5-a]pyridine-4-carbaldehyde (CAS 474432-58-1)
- 2-Chloro-4-(naphthalen-1-yl)quinazoline (CAS 1413376-86-9)
- 2-((2,5-Difluorophenyl)thio)-N-(prop-2-yn-1-yl)acetamide (CAS 1209696-19-4)
- Neuropeptide EI (human, mouse, rat) (CAS 125934-45-4)
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