4-Ethoxy-3,5-dimethyl-1H-pyrrole-2-carbohydrazide CAS 765923-46-4
| CAS No. | 765923-46-4 |
| Molecular Formula | C9H15N3O2 |
| Molecular Weight | 197.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Ethoxy-3,5-dimethyl-1H-pyrrole-2-carbohydrazide (C9H15N3O2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
4-Ethoxy-3,5-dimethyl-1H-pyrrole-2-carbohydrazide (CAS 765923-46-4), molecular formula C9H15N3O2 and molecular weight 197.23 g/mol, is a CATO reference standard with documented purity and traceability.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures 4-Ethoxy-3,5-dimethyl-1H-pyrrole-2-carbohydrazide under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H15N3O2 |
| Molecular Weight | 197.23 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| 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 |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Nitrogen Atoms | 3 |
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Recommended Standards
- 4-Hydroxy-9-methyl Carbazole (CAS 247096-42-0)
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- 4-Aminomethyl-2,5-dimethyl-furan-3-carboxylicacid ethyl ester (CAS 883544-97-6)
- (S)-3,6-Dimethoxy-2-propyl-2,5-dihydropyrazine (CAS 213257-72-8)
- 6-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)imidazo[1,2-a]pyrazine (CAS 1445860-58-1)
- 4-(5-Amino-1,3,4-thiadiazol-2-yl)benzoic acid (CAS 235109-65-6)
- 1-Ethyl-3,5-dimethylpyrazole-4-carbaldehyde (CAS 701911-46-8)
- Nafamostat Impurity 28 (CAS CATO-C4X-133228)
- Ethyl 1-benzyl-5-chloro-4-(2-methoxyvinyl)-1H-pyrazole-3-carboxylate (CAS 2095516-88-2)
- 5-(Amino(phenyl)methyl)-N-cyclopropylpyridin-2-amine (CAS 1355217-65-0)
- 1-(4-Chloro-5-fluoropyridin-3-yl)ethanone (CAS 1393563-13-7)
- 5-Fluoro-6-oxo-1,6-dihydropyridine-3-carbonitrile (CAS 1807036-07-2)
- Semaglutide impurity 273 (CAS CATO-C4X-2226273)
Why CATO?
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