N'-(6-chloropyridin-2-yl)-4-(2,4-dichlorobenzoyl)-1H-pyrrole-2-carbohydrazide CAS 338403-51-3
| CAS No. | 338403-51-3 |
| Molecular Formula | C17H11Cl3N4O2 |
| Molecular Weight | 409.65 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of N'-(6-chloropyridin-2-yl)-4-(2,4-dichlorobenzoyl)-1H-pyrrole-2-carbohydrazide is closely related to a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
N'-(6-chloropyridin-2-yl)-4-(2,4-dichlorobenzoyl)-1H-pyrrole-2-carbohydrazide (CAS 338403-51-3), molecular formula C17H11Cl3N4O2 and molecular weight 409.65 g/mol, is a CATO reference standard with documented purity and traceability.
N'-(6-chloropyridin-2-yl)-4-(2,4-dichlorobenzoyl)-1H-pyrrole-2-carbohydrazide (C17H11Cl3N4O2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
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 | C17H11Cl3N4O2 |
| Molecular Weight | 409.65 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related N Standards
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- Ethyl 2-(2-((5-(3-chloropyridin-2-yl)-1H-indazol-3-yl)amino)thiazol-5-yl)acetate (CAS 1093968-01-4)
- 2-(2-Chloropyridin-3-yl)-5,6-dimethyl-1-{[3-(trifluoromethyl)phenyl]methyl}-1H-1,3-benzodiazole (CAS 339101-23-4)
- (R)-5-(((4-((5-Chloropyridin-2-yl)oxy)piperidin-1-yl)sulfonyl)methyl)-5-methylimidazolidine-2,4-dione (CAS 459814-90-5)
- 2-(2-Chloropyridin-3-yl)-1-(2,4-dichlorobenzyl)-5,6-dimethyl-1H-benzo[d]imidazole (CAS 344279-04-5)
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Recommended Standards
- Rimegepant Impurity 108 (CAS CATO-C4X-2487108)
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- (E)-1-(4-bromophenyl)-3-((((2-chlorophenyl)carbamoyl)oxy)(methyl)amino)prop-2-en-1-one (CAS 303151-52-2)
- 3-(5-(Morpholinomethyl)-1H-tetrazol-1-yl)propanoic acid (CAS 924871-15-8)
- (S)-1-(4-Ethoxy-3-methoxyphenyl)ethan-1-amine (CAS 1212969-40-8)
- Beta-Diphosphopyridine Nucleotide (CAS 53-84-9)
- tert-Butyl ((1-((5-oxo-2,5-dihydro-1,2,4-oxadiazol-3-yl)methyl)cyclohexyl)methyl)carbamate (CAS 227626-65-5)
- 1,1-Dibromo-2-(4-fluorophenyl)-1-ethene (CAS 159957-00-3)
- Lithium tartrate monohydrate (CAS 6108-32-3)
- 5-(Azepan-1-ylsulfonyl)-1-methyl-1H-pyrrole-2-carboxylic acid (CAS 685088-97-5)
- Methyl 8-bromo-1,6-naphthyridine-2-carboxylate (CAS 875514-20-8)
- 2,4-Dimethoxyquinazolin-5-ol (CAS 155824-63-8)
- 30003-72-6 insulin chain b oxidized (CAS 30003-72-6)
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