(3-(4-Bromophenyl)-4,5-dihydroisoxazol-5-yl)methanol CAS 203634-91-7
| CAS No. | 203634-91-7 |
| Molecular Formula | C10H10BrNO2 |
| Molecular Weight | 256.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
(3-(4-Bromophenyl)-4,5-dihydroisoxazol-5-yl)methanol (CAS 203634-91-7), molecular formula C10H10BrNO2 and molecular weight 256.10 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, (3-(4-Bromophenyl)-4,5-dihydroisoxazol-5-yl)methanol (C10H10BrNO2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 256.10 g/mol, it falls into the medium-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.
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 | C10H10BrNO2 |
| Molecular Weight | 256.10 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2015 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Bromophenyl Standards
- 5-(4-bromophenyl)morpholin-3-one (CAS 1147392-80-0)
- 4-(3-Bromophenyl)morpholin-3-one (CAS 1196153-18-0)
- 2-(4-Bromophenyl)morpholin-3-one (CAS 1260672-40-9)
- (4-Bromophenyl)(3-hydroxyazetidin-1-yl)methanone (CAS 1343582-06-8)
- 6-(4-Bromophenyl)morpholin-3-one (CAS 1368418-27-2)
- 4-(4-Bromophenyl)-4-methyloxazolidin-2-one (CAS 1478482-06-2)
- 4-(3-Bromophenyl)-4-methyl-2-oxazolidinone (CAS 1479298-59-3)
- 1-(3-bromophenyl)-3-hydroxypyrrolidin-2-one (CAS 1798714-21-2)
Recommended Standards
- 2-Bromo-6,7,8,8a-tetrahydro-5aH-cyclopenta[5,6][1,4]dioxino[2,3-b]pyridine (CAS 1956334-58-9)
- (4-(Benzyloxy)-2,3-dimethylphenyl)boronic acid (CAS 2121514-88-1)
- 3-Bromo-6,7,8,8a-tetrahydro-5aH-cyclopenta[5,6][1,4]dioxino[2,3-b]pyridine (CAS 1956328-20-3)
- (4-(Benzyloxy)-2,6-dimethylphenyl)boronic acid (CAS 865139-18-0)
- Lithium tert-butoxide (CAS 1907-33-1)
- 2-(1H-1,3-Benzodiazol-1-yl)acetohydrazide (CAS 97420-39-8)
- 1-(2-Hydroxyethyl)cyclopentan-1-ol (CAS 73089-93-7)
- 5-chloro-3-(difluoromethyl)-1h-pyraZole (CAS 1015779-51-7)
- 4-(ethoxymethyl)piperidin-4-ol (CAS 50675-14-4)
- Ethyl 4-(4-bromophenyl)sulfonylbenzoate (CAS 141212-53-5)
- N-(3-chlorophenyl)-3-(3-nitrophenyl)acrylamide (CAS 109567-63-7)
- 1-(1-Methyl-1H-indazol-5-yl)ethan-1-one (CAS 1159511-24-6)
- 4-Bromo-N-((tetrahydrofuran-2-yl)methyl)benzamide (CAS 326898-76-4)
- Semaglutide impurity 276 (CAS CATO-C4X-2226276)
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