(3-Chloro-4-mercaptopyridin-2-yl)dimethylphosphine oxide CAS 2810768-81-9
| CAS No. | 2810768-81-9 |
| Molecular Formula | C7H9ClNOPS |
| Molecular Weight | 221.64 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
(3-Chloro-4-mercaptopyridin-2-yl)dimethylphosphine oxide (CAS 2810768-81-9), molecular formula C7H9ClNOPS and molecular weight 221.64 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amide group, sulfur-containing functionality, organophosphorus functionality, a hydroxyl group, an ether linkage, chlorine substitution, (3-Chloro-4-mercaptopyridin-2-yl)dimethylphosphine oxide is typically white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 221.64 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.
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 | C7H9ClNOPS |
| Molecular Weight | 221.64 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 |
| Degree of Unsaturation (DBE) | 3.5 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2003 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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- (2,3-Dihydrobenzo[b][1,4]dioxine-6-carbonyl)alanine (CAS 1009513-69-2)
- Prednisone EP Impurity D (CAS 10184-69-7)
- 1-(2-Methylpropanoyl)piperidine-3-carboxylic acid (CAS 926214-33-7)
- (3-Nitro-4-phenoxyphenyl)methyl benzoate (CAS 339279-26-4)
- Galanin-Like Peptide (rat) trifluoroacetate salt (CAS 245114-97-0)
- Cyclolinopeptide B (CAS 193139-41-2)
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