4-(N-Ethyl-N-2-Hydroxyethyl)-2-Methylphenylenediamine Sulfate CAS 25646-77-9
| CAS No. | 25646-77-9 |
| Molecular Formula | C11H18N2O |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 4-(N-Ethyl-N-2-Hydroxyethyl)-2-Methylphenylenediamine Sulfate (C11H18N2OH2O4S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 292.35 g/mol, it falls into the medium-molecular-weight range. 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-(N-Ethyl-N-2-Hydroxyethyl)-2-Methylphenylenediamine Sulfate (CAS 25646-77-9) is a high-purity analytical reference standard with the molecular formula C11H18N2OH2O4S and a molecular weight of 292.35 g/mol.
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 | C11H18N2O H2O4S |
| Molecular Weight | 292.35 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1964 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Recommended Standards
- 5-(methoxymethyl)-2-methyl-1,2,4-triazole-3-carboxylic acid (CAS 2091289-91-5)
- 8-Methylimidazo[1,2-a]pyridin-2(3H)-one (CAS 138505-96-1)
- 5-Phenoxy-n-valeric acid (CAS 7170-40-3)
- Boc-Met-ONp (CAS 2488-18-8)
- 2-(Dibromo(nitro)methyl)-3-methylpyridine (CAS 35624-43-2)
- Ethyl 3-nitro-1H-1,2,4-triazole-1-carboxylate (CAS 328003-44-7)
- 1,4-Dihydroxy-5,8-dimethoxyanthracene-9,10-dione (CAS 63229-41-4)
- 1-(Benzenesulfonyl)-3-[3-methyl-4-(propan-2-yl)phenyl]urea (CAS 866150-51-8)
- 3-(4-Ethoxyphenyl)-4-nitro-1H-pyrazole (CAS 1708380-50-0)
- Semaglutide Impurity 5 (CAS 23406-82-8)
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