Emedastine Difumarate CAS 87233-62-3
| CAS No. | 87233-62-3 |
| Molecular Formula | C17H26N4O |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Emedastine Difumarate (CAS 87233-62-3), molecular formula C17H26N4OC4H4O4 and molecular weight 418.49 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of Emedastine Difumarate (C17H26N4OC4H4O4) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
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.
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 | C17H26N4O 2*C4H4O4 |
| Molecular Weight | 418.49 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1981 |
| Nitrogen Atoms | 4 |
Related Emedastine Standards
- Emedastine EP Impurity A (CAS 101953-61-1)
- Emedastine Impurity C38 (CAS 101953-62-2)
- Emedastine EP Impurity E (CAS 101954-20-5)
- Emedastine EP Impurity E 2HCl (CAS 101954-20-5(free base))
- Emedastine EP Impurity C (CAS 122423-32-9)
- Emedastine EP Impurity C DiHCl (CAS 122423-32-9 (free base))
- Emedastine EP Impurity C (CAS 122423-32-9(Free Base))
- Emedastine N-Oxide (CAS 122484-65-5)
Recommended Standards
- 1-Cyclobutyl-1H-pyrazole-3-sulfonamide (CAS 2283303-84-2)
- 4-Chlorothieno[2,3-c]pyridine (CAS 477874-92-3)
- 2-[(cyclopropylcarbamoyl)amino]acetic acid (CAS 953906-56-4)
- 7-(Triphenylphosphoranylidene)heptanoic acid (CAS 52956-94-2)
- 3,3,3-Trifluoro-1-(3-methoxyphenyl)propan-1-one (CAS 1247083-36-8)
- 3-(Ethoxycarbonyl)-1-(4-ethoxyphenyl)-5-methyl-4,5-dihydro-1h-pyrazole-5-carboxylic acid (CAS 1264041-92-0)
- 2,2'-((6-Amino-5-nitropyrimidine-2,4-diyl)bis(azanediyl))bis(ethan-1-ol) (CAS 674307-77-8)
- Trazodone Impurity 25 (CAS CATO-C4X-177225)
- 5,7-Dibromobenzo[c][1,2,5]thiadiazol-4-amine (CAS 30536-26-6)
- Tetrapeptide-3 (CAS 827306-97-8)
Why CATO?
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