5-(3,5-Dichloro-2-hydroxybenzoyl)-2-oxo-1-(thiazol-2-yl)-1,2-dihydropyridine-3-carbonitrile CAS 565168-79-8
| CAS No. | 565168-79-8 |
| Molecular Formula | C16H7Cl2N3O3S |
| Molecular Weight | 392.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 5-(3,5-Dichloro-2-hydroxybenzoyl)-2-oxo-1-(thiazol-2-yl)-1,2-dihydropyridine-3-carbonitrile meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
5-(3,5-Dichloro-2-hydroxybenzoyl)-2-oxo-1-(thiazol-2-yl)-1,2-dihydropyridine-3-carbonitrile (CAS 565168-79-8), molecular formula C16H7Cl2N3O3S and molecular weight 392.22 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 5-(3,5-Dichloro-2-hydroxybenzoyl)-2-oxo-1-(thiazol-2-yl)-1,2-dihydropyridine-3-carbonitrile (C16H7Cl2N3O3S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 14.0, corresponding to approximately 14 ring(s) or double-bond equivalent(s). With a molecular weight of 392.22 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C16H7Cl2N3O3S |
| Molecular Weight | 392.22 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- 5-(4-Methoxyphenyl)-3-perfluorobutyl-1H-pyrazole (CAS 1029636-46-1)
- Perfluorophenyl 3-(trifluoromethyl)benzenesulfonate (CAS 885950-36-7)
- 4-Phenyl-5-(quinolin-6-yl)-4H-1,2,4-triazole-3-thiol (CAS 866018-85-1)
- 2,2-Dimethyl-N-((tetrahydrofuran-2-yl)methyl)propan-1-amine (CAS 1179079-94-7)
- 3-(Pyrrolidine-1-sulfonyl)benzene-1-sulfonyl chloride (CAS 920449-65-6)
- 2-((2-Bromo-2-methylpropanoyl)oxy)-2-methylpropanoic acid (CAS 1431509-30-6)
- Cefuroxime Axetil EP Impurity A (CAS 123458-61-7)
- 5-Methoxy-4-methyl-2-(naphthalen-2-yloxy)pyrimidine (CAS 866017-89-2)
- 9-Methyldecanol (CAS 55505-28-7)
- 4-(Dimethoxymethyl)-1,2-dimethoxybenzene (CAS 59276-33-4)
- 4-(p-Tolyl)-1,2,3,4-tetrahydrocyclopenta[b]indole (CAS 273220-32-9)
- Semaglutide impurity 106 (CAS CATO-C4X-2226106)
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