5-Hydroxy-2-((pyridin-2-ylthio)methyl)-4h-pyran-4-one CAS 144882-21-3
| CAS No. | 144882-21-3 |
| Molecular Formula | C11H9NO3S |
| Molecular Weight | 235.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 5-Hydroxy-2-((pyridin-2-ylthio)methyl)-4h-pyran-4-one (C11H9NO3S) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
5-Hydroxy-2-((pyridin-2-ylthio)methyl)-4h-pyran-4-one (CAS 144882-21-3), molecular formula C11H9NO3S and molecular weight 235.26 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 | C11H9NO3S |
| Molecular Weight | 235.26 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1998 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Hydroxy Standards
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Recommended Standards
- Ethyl 2-(thiazol-5-yl)pyrimidine-5-carboxylate (CAS 1447607-87-5)
- 4-Methyl-2-[(pyridin-3-yl)amino]-1,3-thiazole-5-carboxylic acid (CAS 1486166-35-1)
- Methyl 3-(benzo[d]thiazol-2-yl)-3-oxopropanoate (CAS 1507228-21-8)
- 2-(Cyanomethyl)-7-(methylsulfonyl)benzimidazole (CAS 1547913-76-7)
- 6-Chloro-5-(5,5-dimethyl-1,3,2-dioxaborinan-2-yl)-1H-indole (CAS 1467061-15-9)
- Ethyl 3-(4-(azetidin-1-ylmethyl)benzoyl)benzoate (CAS 898756-28-0)
- 1,1-Diphenyl-2-(pyridin-4-yl)ethan-1-ol (CAS 3197-49-7)
- 3-Fluoro-5-propoxybenzaldehyde (CAS 883443-33-2)
- (R)-1-(3-chloro-5-methylphenyl)-2-methylpropan-1-amine (CAS 1213351-59-7)
- Methyl 3-carbamimidoylbenzoate (CAS 15676-11-6)
- 4,5-Dichloro-3-(difluoromethyl)pyridine-2-sulfonyl chloride (CAS 1805044-59-0)
- Cyclohexa-3,5-diene-1,2-dicarboxylic acid (CAS 22919-28-4)
- 1-((2-Ethylpiperidin-1-yl)methyl)cyclopentan-1-ol (CAS 1492532-93-0)
- Fibrinopeptide A, human TFA (CAS 61533-47-9)
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