3-bromo-4-cyanobenzene-1-sulfonyl chloride CAS 1201684-65-2
| CAS No. | 1201684-65-2 |
| Molecular Formula | C7H3BrClNO2S |
| Molecular Weight | 280.53 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 3-bromo-4-cyanobenzene-1-sulfonyl chloride (C7H3BrClNO2S) contains an amide group, 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 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 280.53 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).
3-bromo-4-cyanobenzene-1-sulfonyl chloride (CAS 1201684-65-2) is a high-purity analytical reference standard with the molecular formula C7H3BrClNO2S and a molecular weight of 280.53 g/mol.
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), 3-bromo-4-cyanobenzene-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 | C7H3BrClNO2S |
| Molecular Weight | 280.53 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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.) | 1990 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related bromo Standards
- 2-Bromo-4-cyanobenzene-1-sulfonyl chloride (CAS 1098387-29-1)
- 5-Bromo-2-cyanobenzenesulfonyl chloride (CAS 1257415-88-5)
- 4-Bromo-3-cyanobenzenesulfonyl Chloride (CAS 1261583-46-3)
- 3-bromo-2-cyanobenzene-1-sulfonyl chloride (CAS 612541-16-9)
- 3-Bromo-5-cyanobenzenesulfonyl chloride (CAS 49674-17-1)
- 4-Bromo-2-cyanobenzenesulfonyl chloride (CAS 431046-20-7)
- 2-Bromo-N-(3-chloro-4-fluorobenzyl)acetamide (CAS 1341784-72-2)
- N-(4-bromo-3-fluorophenyl)-3-chloropropanamide (CAS 1495360-88-7)
Recommended Standards
- Tin(II) bromide (CAS 10031-24-0)
- n-(4-Bromo-2-fluorophenyl)-3-chloropropanamide (CAS 551926-70-6)
- 4-Chloro-2-iodo-1-isopropylbenzene (CAS 1369923-80-7)
- n-(4-Bromo-2-fluorophenyl)-2-chloropropanamide (CAS 923126-09-4)
- 4-chloro-2-methyl-2h-pyraZole-3-carboxylic acid methyl ester (CAS 400877-54-5)
- 4-Amino-cis-L-proline Dihydrochloride (CAS 16257-84-4)
- Ranitidine N,S-Dioxide (CAS 1185237-42-6)
- 5-(4-Butylphenyl)-1H-pyrazole-3-carboxylic acid (CAS 1038914-12-3)
- 3-[1-(5-Chloro-2-fluorobenzoyl)piperidin-4-yl]-4-[(4-methylphenyl)methyl]-4,5-dihydro-1H-1,2,4-triazol-5-one (CAS 1775518-39-2)
- 2-Phenyl-2-(pyrrolidin-2-yl)ethan-1-amine (CAS 1034921-33-9)
- 2-Chloro-5-Nitro Isonicotinic Acid (CAS 907545-47-5)
- (5-methoxybenzothiophen-2-yl)boronic acid (CAS 193965-30-9)
- Methyl 1-methyl-4,5,6,7-tetrahydro-1H-pyrazolo[4,3-c]pyridine-3-carboxylate hydrochloride (CAS 1609401-30-0)
- Semaglutide impurity 250 (CAS CATO-C4X-2226250)
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