3-Chloro-2-methylthiopyridine-5-boronic acid CAS 1451392-62-3
| CAS No. | 1451392-62-3 |
| Molecular Formula | C6H7BClNO2S |
| Molecular Weight | 203.45 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 3-Chloro-2-methylthiopyridine-5-boronic acid.
CATO supplies 3-Chloro-2-methylthiopyridine-5-boronic acid (CAS 1451392-62-3), a certified reference material (molecular formula C6H7BClNO2S, MW 203.45 g/mol) for analytical method development and quality control.
Owing to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, 3-Chloro-2-methylthiopyridine-5-boronic acid is typically white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 203.45 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C6H7BClNO2S |
| Molecular Weight | 203.45 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) | 3.5 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1992 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 5-Chloro-2-(methylsulfanyl)pyridine-3-boronic acid (CAS 1451392-63-4)
- 3-Chloro-2,6-dinitropyridine (CAS 101079-67-8)
- 4-Chloro-3,5-dinitropyridine (CAS 10425-70-4)
- 5-Chloro-6-nitropyrazine-2-carboxylic acid (CAS 1507759-83-2)
- 2-Chloro-3,5-dinitropyridine (CAS 2578-45-2)
- 4-Chloro-2-fluoro-5-nitrobenzaldehyde (CAS 1639298-89-7)
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- 2-Chloro-4-fluoro-5-nitrobenzaldehyde (CAS 99329-85-8)
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