4-Bromo-2-chloropyridine-5-sulfonyl chloride CAS 1807072-90-7
| CAS No. | 1807072-90-7 |
| Molecular Formula | C5H2BrCl2NO2S |
| Molecular Weight | 290.95 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies 4-Bromo-2-chloropyridine-5-sulfonyl chloride (CAS 1807072-90-7), a certified reference material (molecular formula C5H2BrCl2NO2S, MW 290.95 g/mol) for analytical method development and quality control.
Based on its molecular formula C5H2BrCl2NO2S, 4-Bromo-2-chloropyridine-5-sulfonyl chloride contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine/bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 290.95 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
Physical & Chemical Properties
| Molecular Formula | C5H2BrCl2NO2S |
| Molecular Weight | 290.95 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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Bromo Standards
- 4-Bromo-5-chloropyridine-2-sulfonyl chloride (CAS 1093188-44-3)
- 5-Bromo-2-chloropyridine-3-sulfonyl chloride (CAS 1146290-19-8)
- 2-Bromo-6-chloropyridine-4-sulfonyl chloride (CAS 1261655-38-2)
- 6-Bromo-2-chloropyridine-3-sulfonyl chloride (CAS 1261662-60-5)
- 5-Bromo-4-chloropyridine-3-sulfonyl chloride (CAS 1352522-70-3)
- 4-Bromo-2-chloropyridine-3-sulfonyl chloride (CAS 1805185-69-6)
- 4-Bromo-3-chloropyridine-2-sulfonyl chloride (CAS 1805410-32-5)
- 5-Bromo-6-chloropyridine-3-sulfonyl Chloride (CAS 216394-05-7)
Recommended Standards
- 2-(2,5-Dichloro-3-fluorophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 2121515-31-7)
- 2-(2,6-Dichloro-4-fluorophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 2121514-25-6)
- 2-(2,3-Dichloro-5-fluorophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1799938-17-2)
- 3,5-Dichloro-2-fluorophenylboronic acid pinacol ester (CAS 2121515-08-8)
- 4-Bromo-2-(pyrrolidin-2-yl)pyridine (CAS 886365-52-2)
- 2-Chloro-1-[4-(trifluoromethyl)phenyl]ethan-1-one (CAS 95727-89-2)
- 3-Methyl-2,4-dioxo-1-propyl-1,2,3,4-tetrahydropyrido[2,3-d]pyrimidine-6-sulfonyl chloride (CAS 1334148-79-6)
- m-fluoroiodobenzene (CAS 1121-86-4)
- 2,5,8-Trichloroquinoline (CAS 1343067-49-1)
- Diethyl (1,1-difluoro-2-hydroxy-2-(pyridin-4-yl)ethyl)phosphonate (CAS 83567-96-8)
- Eicosanoic-20,20,20-d3 Acid (CAS 202480-70-4)
- 4-(4-Bromo-3-nitrobenzoyl)morpholine (CAS 332400-36-9)
- Sildenafil Impurity N23 (CAS 247583-72-8)
- Semaglutide impurity 210 (CAS CATO-C4X-2226210)
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