(S)-2-Bromo-1-(3,4-dihydro-2h-benzo[b][1,4]dioxepin-7-yl)ethan-1-ol CAS 1176485-37-2
| CAS No. | 1176485-37-2 |
| Molecular Formula | C11H13BrO3 |
| Molecular Weight | 273.12 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 (S)-2-Bromo-1-(3,4-dihydro-2h-benzo[b][1,4]dioxepin-7-yl)ethan-1-ol.
(S)-2-Bromo-1-(3,4-dihydro-2h-benzo[b][1,4]dioxepin-7-yl)ethan-1-ol (CAS 1176485-37-2) is a high-purity analytical reference standard with the molecular formula C11H13BrO3 and a molecular weight of 273.12 g/mol.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system, (S)-2-Bromo-1-(3,4-dihydro-2h-benzo[b][1,4]dioxepin-7-yl)ethan-1-ol is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 273.12 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
As a certified reference material (CRM), (S)-2-Bromo-1-(3,4-dihydro-2h-benzo[b][1,4]dioxepin-7-yl)ethan-1-ol 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 | C11H13BrO3 |
| Molecular Weight | 273.12 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | Br-containing |
Related S Standards
- Ethyl 2-(3-bromo-4-methoxyphenyl)acetate (CAS 100125-96-0)
- Butyl 5-bromo-2-hydroxybenzoate (CAS 100126-05-4)
- Methyl 4-bromo-2-isopropoxybenzoate (CAS 1016313-23-7)
- 1-(3-Bromo-4,5-dimethoxyphenyl)propan-2-one (CAS 1017082-55-1)
- 3-Bromo-1-(3,4-dimethoxyphenyl)propan-1-one (CAS 105174-63-8)
- Ethyl 2-bromo-2-(2-methoxyphenyl)acetate (CAS 109041-91-0)
- 4-Bromo-2-butoxybenzoic acid (CAS 1095036-68-2)
- 3-Bromo-4-(tert-butoxy)benzoic acid (CAS 1131594-11-0)
Recommended Standards
- 1-(2-Bromo-4,5-dimethoxyphenyl)propan-2-one (CAS 116145-28-9)
- 2-Bromo-1-(2,4-dimethoxyphenyl)propan-1-one (CAS 117844-88-9)
- 5-Bromo-2-(2-ethoxyethoxy)benzaldehyde (CAS 1156314-50-9)
- 5-bromo-2-(2-hydroxy-2-methylpropoxy)benzaldehyde (CAS 1184355-81-4)
- <SC>DL</SC>-glyceric acid-2,2,2-d<SUB>3</SUB> calcium salt dihydrate (CAS 1312713-87-3)
- 3-Amino-N-(3-chloro-2-methylphenyl)-6-ethyl-5,6,7,8-tetrahydrothieno[2,3-b]quinoline-2-carboxamide (CAS 625370-13-0)
- (2S)-2-ethylmorpholine;hydrochloride (CAS 1432794-09-6)
- (2R,3R,4S,5R)-2-(6-Amino-2-(prop-2-yn-1-ylthio)-9H-purin-9-yl)-5-(hydroxymethyl)tetrahydrofuran-3,4-diol (CAS 156119-60-7)
- N3,N3,N6,N6-tetraphenyl-9,9'-spirobi[fluorene]-3,6-diamine (CAS 848679-59-4)
- 55704-78-4 N99176196Z 2,5-Dimethyl-2,5-dihydroxy-1,4-dithiane 2,5-Dimethyl-1,4-dithiane-2,5-diol 1,4-Dithiane-2,5-diol, 2,5-dimethyl- 2,5-Dimethyl-2,5-dihydroxy-p-dithiane 2,5-Dimethyl-p-dithiane-2,5-diol EINECS 259-770-3 FEMA No. 3450 2-Mercaptopropanone NSC 176174 UNII-N99176196Z (CAS 55704-78-4)
- 8-Chloro-3,6-dimethylimidazo[1,2-a]pyrazine (CAS 143591-87-1)
- Azithromycin CP Impurity R (CAS 161193-44-8)
- (3-Amino-1H-1,2,4-triazol-5-yl)(piperidin-1-yl)methanone (CAS 294853-92-2)
- Peptide Impurity 41 (CAS CATO-CPTD788841)
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