Diethyl 2-((p-tolylamino)methylene)malonate CAS 19056-84-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 19056-84-9 |
| Molecular Formula | C15H19NO4 |
| Molecular Weight | 277.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Diethyl 2-((p-tolylamino)methylene)malonate (CAS 19056-84-9) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C15H19NO4. Molecular weight: 277.32 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C15H19NO4 |
| Molecular Weight | 277.32 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Nitrogen Atoms | 1 |
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Recommended Standards
- 1-(tert-Butoxycarbonyl)-3-methylindoline-3-carboxylic acid (CAS 1890285-39-8)
- 1-((Benzyloxy)carbonyl)-3-methylpiperidine-4-carboxylic acid (CAS 1874374-82-9)
- Methyl 5-amino-2-(3-hydroxy-3-methylbutyl)-2H-indazole-6-carboxylate (CAS 1931995-07-1)
- Sodium 2-phenylethene-1-sulfonate (CAS 2039-44-3)
- 3-[1-propyl-5-(pyrrolidine-1-sulfonyl)-1h-1,3-benzodiazol-2-yl]propanoic acid (CAS 749902-33-8)
- Aprocitentan Impurity 8 (CAS CATO-C4X-33558)
- Eldecalcitol Impurity 45 (CAS CATO-C4X-214045)
- Ethyl 4-ethoxynicotinate (CAS 33279-63-9)
- Endotoxin Inhibitor (CAS 147396-10-9)
- Semaglutide impurity 69 (CAS CATO-C4X-222669)
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