Methyl 4-bromo-6-(chlorosulfonyl)picolinate CAS 1393545-64-6
| CAS No. | 1393545-64-6 |
| Molecular Formula | C7H5BrClNO4S |
| Molecular Weight | 314.54 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C7H5BrClNO4S, Methyl 4-bromo-6-(chlorosulfonyl)picolinate contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine/bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 314.54 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.
Methyl 4-bromo-6-(chlorosulfonyl)picolinate (CAS 1393545-64-6), molecular formula C7H5BrClNO4S and molecular weight 314.54 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C7H5BrClNO4S |
| Molecular Weight | 314.54 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; 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.) | 1991 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Methyl Standards
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- 3-Bromo-4-methyl-5-nitrobenzene-1-sulfonyl chloride (CAS 1247054-40-5)
- 3-bromo-2-chloro-5-sulfamoylbenzoic acid (CAS 1461707-46-9)
- 4-bromo-2-methyl-5-nitrobenzene-1-sulfonyl chloride (CAS 1803604-85-4)
- 4-Bromo-5-methyl-2-nitrobenzenesulfonyl chloride (CAS 1805115-65-4)
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- (3-Bromo-4-fluorophenyl)(5-chloropyridin-2-yl)methanone (CAS 2097065-10-4)
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Recommended Standards
- Methyl 2-chloro-6-fluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoate (CAS 1321613-03-9)
- 3-Bromophenyl (chlorosulfonyl)carbamate (CAS 1315368-53-6)
- 4-Bromophenyl (chlorosulfonyl)carbamate (CAS 1315367-10-2)
- 2-Bromophenyl (chlorosulfonyl)carbamate (CAS 1315366-47-2)
- 3,3'-Disulfanediylbis(4-aminobenzenesulfonamide) (CAS 5332-71-8)
- 3-Cyclopropyl-1,2,4-thiadiazol-5-amine (CAS 762272-35-5)
- 1-(2-fluorophenyl)-3-prop-2-yn-1-ylurea (CAS 1090922-05-6)
- 2,6-Bis(diethylamino)quinoxaline-5,8-dione (CAS 62471-82-3)
- Tofacitinib Impurity 56 (CAS 923036-30-0)
- 2-Phenyl-N-(pyrimidin-2-yl)quinoline-4-carboxamide (CAS 88067-66-7)
- 6-Hydroxybenzo[d]isoxazole-3-carboxylic acid (CAS 668969-90-2)
- Ethyl 2-[(5-{[(isopropylamino)carbonyl]amino}-1,3,4-thiadiazol-2-yl)sulfanyl]acetate (CAS 866011-00-9)
- 1-(3-Chloroquinoxalin-2-yl)piperidin-3-ol (CAS 353257-75-7)
- Semaglutide Impurity 9 (CAS CATO-C4X-22269)
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