(R)-4-Methylisoxazolidin-4-ol hydrochloride CAS 644970-85-4
| CAS No. | 644970-85-4 |
| Molecular Formula | C4H9NO2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), (R)-4-Methylisoxazolidin-4-ol hydrochloride 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.
(R)-4-Methylisoxazolidin-4-ol hydrochloride (CAS 644970-85-4), molecular formula C4H9NO2HCl and molecular weight 139.58 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, (R)-4-Methylisoxazolidin-4-ol hydrochloride (C4H9NO2HCl) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 0.0, corresponding to approximately 0 ring(s) or double-bond equivalent(s). With a molecular weight of 139.58 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.
Physical & Chemical Properties
| Molecular Formula | C4H9NO2 HCl |
| Molecular Weight | 139.58 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 | Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 0.0 |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related R Standards
- (2-Methylisoxazolidin-5-yl)methanol (CAS 167393-03-5)
- 4-Methylisoxazolidin-4-ol hydrochloride (CAS 2172153-44-3)
- 2-Methylisoxazolidin-3-one (CAS 40784-12-1)
- 4-Methylisoxazolidin-3-one (CAS 62242-99-3)
- (4S)-4-methylisoxazolidin-4-ol;hydrochloride (CAS 644970-79-6)
- (S)-4-methylisoxazolidin-4-ol (CAS 780036-90-0)
- (R)-4-methylisoxazolidin-4-ol (CAS 780752-72-9)
- 2-Methylisoxazolidin-5-one (CAS 86933-60-0)
Recommended Standards
- 1,3-Isobenzofurandione, polymer with ethenylbenzene, 2,5-furandione and 1,2-propanediol (CAS 26182-24-1)
- 3-Chloro-4-fluoro-6-iodoindazole (CAS 887568-02-7)
- (1-Amino-2-methylpropyl)boronic acid (CAS 161928-42-3)
- 4-(2-methoxyethyl)piperidine-4-carboxylic acid;hydrochloride (CAS 1375474-00-2)
- Baloxavir Impurity 115 (CAS CATO-C4X-2108115)
- (2S,3R)-2-(Benzyloxy)pentan-3-amine hydrochloride (CAS 1263094-77-4)
- 2-(Bromomethyl)-5-ethylthiophene (CAS 442910-38-5)
- 1-(4-Chlorophenyl)cyclobutane-1-carbaldehyde (CAS 106079-12-3)
- 4-((4-Chloro-3-nitrobenzylidene)amino)-3-(m-tolyl)-1H-1,2,4-triazole-5(4H)-thione (CAS 478256-23-4)
- Semaglutide impurity 54 (CAS CATO-C4X-222654)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com