(R)-1-Bromo-3-(methylsulfinyl)benzene CAS 188539-86-8
| CAS No. | 188539-86-8 |
| Molecular Formula | C7H7BrOS |
| Molecular Weight | 219.10 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.
(R)-1-Bromo-3-(methylsulfinyl)benzene (CAS 188539-86-8) is a high-purity analytical reference standard with the molecular formula C7H7BrOS and a molecular weight of 219.10 g/mol.
The molecular framework of (R)-1-Bromo-3-(methylsulfinyl)benzene (C7H7BrOS) is characterized by sulfur-containing functionality, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C7H7BrOS |
| Molecular Weight | 219.10 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2010 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 1 |
Related R Standards
- 1-(5-bromo-2-methylthiophen-3-yl)ethan-1-one (CAS 1001671-82-4)
- 2-Bromo-1-(5-methylthiophen-2-yl)ethanone (CAS 10531-42-7)
- 3-Bromo-2-(methylthio)phenol (CAS 107724-66-3)
- 5-Bromo-2-ethylthiophene-3-carbaldehyde (CAS 1150223-09-8)
- 4-Bromo-N-cyclopropylthiazol-2-amine (CAS 1159816-42-8)
- 2-Bromo-1-(4-methylthiophen-2-yl)ethan-1-one (CAS 1203589-82-5)
- 5-Bromo-N-cyclopropylthiazol-2-amine (CAS 1209460-01-4)
- 2-Bromo-3-(methylthio)phenol (CAS 1243287-95-7)
Recommended Standards
- 3-(5-Bromothiophen-2-yl)prop-2-en-1-ol (CAS 1831938-05-6)
- (R)-1-Bromo-4-(methylsulfinyl)benzene (CAS 28227-62-5)
- 4-Bromo-5-methyl-2-(methylthio)pyrimidine (CAS 1823532-08-6)
- (S)-1-Bromo-3-(methylsulfinyl)benzene (CAS 422551-36-8)
- N1-Cyclopentyl-N2-(5,5-dioxido-2-phenyl-2,6-dihydro-4H-thieno[3,4-c]pyrazol-3-yl)oxalamide (CAS 899961-38-7)
- 1-(2-Ethoxyphenyl)-1H-pyrrole (CAS 383137-98-2)
- (S)-(+)-3-(Benzyloxyxarbonyl)-5-ox-4-oxazolidineacetic Acid (CAS 23632-66-8)
- Ethyl 7-(3-acetoxyazetidin-1-yl)-1-(6-amino-3,5-difluoropyridin-2-yl)-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylate (CAS 1788054-85-2)
- 1-(2-Methoxyethyl)cyclopropan-1-amine hydrochloride (CAS 1993247-86-1)
- 1-(2-Chlorophenyl)piperidin-3-amine (CAS 1250430-03-5)
- 1-(2-Ethylbutanoyl)azetidine-3-carboxylic acid (CAS 1343867-22-0)
- Levocabastine impurity 24 (CAS CATO-C4X-228924)
- 1-(4-Bromophenyl)-3-methylthiourea (CAS 61449-55-6)
- Peptide 432 (CAS CATO-CPTD788432)
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