2-(Bromomethyl)benzene-1-sulfonyl chloride CAS 34981-56-1
| CAS No. | 34981-56-1 |
| Molecular Formula | C7H6BrClO2S |
| Molecular Weight | 269.54 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.
2-(Bromomethyl)benzene-1-sulfonyl chloride (CAS 34981-56-1), molecular formula C7H6BrClO2S and molecular weight 269.54 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2-(Bromomethyl)benzene-1-sulfonyl chloride (C7H6BrClO2S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine/bromine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 269.54 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
As a certified reference material (CRM), 2-(Bromomethyl)benzene-1-sulfonyl chloride 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 | C7H6BrClO2S |
| Molecular Weight | 269.54 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
| Halogen Content | Cl/Br-containing |
| Sulfur Atoms | 1 |
Related Bromomethyl Standards
- 3-(Bromomethyl)benzenesulfonyl chloride (CAS 148583-69-1)
- methyl 5-(bromomethyl)-2-chlorobenzoate (CAS 16220-99-8)
- 2-(Bromomethyl)-1-(chloromethyl)naphthalene (CAS 72953-44-7)
- methyl 2-(bromomethyl)-5-chlorobenzoate (CAS 668262-52-0)
- (((1-(Bromomethyl)cyclobutyl)methoxy)methyl)benzene (CAS 1483150-26-0)
- 1-(Bromomethyl)-3,4-dichloro-2-methoxybenzene (CAS 1936194-61-4)
- (αR)-α-(Bromomethyl)-2,4-dichlorobenzenemethanol (CAS 860439-01-6)
- 1-(Bromomethyl)-4,5-dichloro-2-methoxybenzene (CAS 37420-52-3)
Recommended Standards
- 1-Bromo-4-((chloromethyl)sulfonyl)benzene (CAS 54091-06-4)
- 2-Bromo-1-chloro-4-(methylsulfonyl)benzene (CAS 918350-18-2)
- (2-Bromophenyl)methanesulfonyl chloride (CAS 24974-74-1)
- 2-Bromo-4-methylbenzenesulfonyl chloride (CAS 89794-06-9)
- N-Isopropyl-N-(pyrrolidin-2-ylmethyl)acetamide (CAS 1353987-02-6)
- Pactimibe Sulfate (2:1) (CAS 608510-47-0)
- 2-Chloro-N-(5-chloro-2-hydroxyphenyl)propanamide (CAS 17959-88-5)
- Sulfonamides Mix 25 (CAS CATO-MCAD303455-ME)
- 2-[[3-(Cyclopentyloxy)-4-methoxyphenyl]-methyl]phthalimide (CAS 287196-92-3)
- 1-Butyl-N-(2,4-dichlorophenyl)-4-hydroxy-2-oxo-1,2-dihydroquinoline-3-carboxamide (CAS 300716-28-3)
- Beclomethasone dipropionate Impurity 23 (CAS CATO-C4X-147423)
- 2-(Methylamino)-1-(1,2,3,4-tetrahydroquinolin-1-yl)ethan-1-one (CAS 1016501-36-2)
- 2,2-Dimethylsuccinic acid 4-(4-methoxybenzyl) ester (CAS 86207-79-6)
- Des-Gly29,30-Tirzepatide (CAS CATO-CPTD788944)
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