4-Ethylphenylhydrazine Hydrochloride CAS 53661-18-0
| CAS No. | 53661-18-0 |
| Molecular Formula | C8H12N2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 172.66 g/mol gives 4-Ethylphenylhydrazine Hydrochloride distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
4-Ethylphenylhydrazine Hydrochloride (CAS 53661-18-0), molecular formula C8H12N2HCl and molecular weight 172.66 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrile group, chlorine substitution, 4-Ethylphenylhydrazine Hydrochloride is typically white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 172.66 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C8H12N2 HCl |
| Molecular Weight | 172.66 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1972 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Ethylphenylhydrazine Standards
Recommended Standards
- Bromoacetonitrile (CAS 590-17-0)
- 6-Bromo-N,N-diethylpyridazin-4-amine (CAS 1619989-11-5)
- 2-Amino-3-(2,4-difluorophenoxy)propanenitrile (CAS 1082427-11-9)
- 2-(7-Hydroxy-3,4-dihydroisoquinolin-2(1H)-yl)-2-oxo-N-(3-(thiazol-2-yl)phenyl)acetamide (CAS 1427919-61-6)
- 5-(tert-Butyl)-7-fluoro-3-methoxyisobenzofuran-1(3H)-one (CAS 1433849-07-0)
- 6-Fluoro-4-methoxy-3-(1H)indazole carboxylic Acid (CAS 887569-55-3)
- 1D898P42YW 7774-34-7 Calcium chloride hexahydrate Calcium chloride, hexahydrate Calcium dichloride hexahydrate UNII-1D898P42YW (CAS 7774-34-7)
- 2-(3-(((3-(Benzyloxy)-3-oxopropyl)amino)methyl)pyrrolidin-1-yl)acetic acid (CAS 1353947-19-9)
- 5-(2-Ethoxyphenyl)-1-methyl-3-n-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one (CAS 139756-21-1)
- Peptide 436 (CAS CATO-CPTD788436)
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