5,6,7,8-Tetrahydro-4H-isoxazolo[4,5-c]azepin-3-ol CAS 67697-49-8
| CAS No. | 67697-49-8 |
| Molecular Formula | C21H21NO3 |
| Molecular Weight | 335.40 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C21H21NO3, 5,6,7,8-Tetrahydro-4H-isoxazolo[4,5-c]azepin-3-ol contains a steroid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 335.40 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies 5,6,7,8-Tetrahydro-4H-isoxazolo[4,5-c]azepin-3-ol (CAS 67697-49-8), a certified reference material (molecular formula C21H21NO3, MW 335.40 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.
CATO manufactures 5,6,7,8-Tetrahydro-4H-isoxazolo[4,5-c]azepin-3-ol 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 | C21H21NO3 |
| Molecular Weight | 335.40 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
| Nitrogen Atoms | 1 |
Related Tetrahydro Standards
- 5-(5,6,7,8-Tetrahydro-4H-cyclohepta[b]thiophen-3-yl)-4-((tetrahydrofuran-2-yl)methyl)-4H-1,2,4-triazole-3-thiol (CAS 956576-86-6)
- Tetrahydro 11-Deoxycorticosterone (CAS 567-03-3)
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- (1S)-2,2',3,3'-Tetrahydro-3,3,3',3',5,5'-hexamethyl-1,1'-spirobi[1H-indene]-7,7'-diol (CAS 2243286-77-1)
- 4-(1-Boc-1,2,3,6-tetrahydro-4-pyridyl)-2-methyl-6-nitroaniline (CAS 1054315-49-9)
- (2-Methyl-7,8,9,10-tetrahydro-6H-cyclohepta[b]quinolin-11-yl)(4-methylpiperazin-1-yl)methanone (CAS 36068-72-1)
- Tetrahydro-2-[(2R)-1,1,2-trimethyl-3-(phenylsulfonyl)propoxy]-2H-pyran-d6 (CAS 1796539-93-9)
Recommended Standards
- 5,5-Diethyl-1,3-diphenyl-2-iminobarbituric Acid (CAS 200116-26-3)
- 5-Allyl-6-methyl-2-((4,6,7-trimethylquinazolin-2-yl)amino)pyrimidin-4-ol (CAS 924874-35-1)
- 5-(4-(3,4,5-Trimethoxyphenyl)piperazin-1-yl)pyrrolidin-2-one (CAS 91703-26-3)
- 5-Amino-1-benzyl-N-(4-isopropylphenyl)-1H-1,2,3-triazole-4-carboxamide (CAS 899750-02-8)
- 7-Methoxy-1-methyl-9-(3-phenylpropyl)-9H-pyrido[3,4-b]indole (CAS 752212-78-5)
- 3-[1-oxo-5-(3-prop-2-ynoxypropyl)isoindolin-2-yl]piperidine-2,6-dione (CAS 2589697-94-7)
- trans-2-Ethynylcyclopentanol (CAS 61967-50-8)
- Ethyl 2-bromo-3-cyano-4-fluorobenzoate (CAS 1805523-33-4)
- Relugoli Impurity 135 (CAS CATO-C4X-2429135)
- Methyl (3r)-3-amino-3-(2-ethoxyphenyl)propanoate hydrochloride (CAS 1306728-63-1)
- (4-(4-Aminophenyl)piperazin-1-yl)(phenyl)methanone (CAS 262375-99-5)
- 2-(Piperidin-1-yl)benzohydrazide (CAS 886494-71-9)
- Sofosbuvir Impurity 29 (CAS CATO-C4X-105229)
- Des-Pro36-Tirzepatide (CAS CATO-CPTD788937)
Why CATO?
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