1-((4-Ethoxyphenyl)sulfonyl)piperazine hydrochloride CAS 1171081-48-3
| CAS No. | 1171081-48-3 |
| Molecular Formula | C12H18N2O3S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-((4-Ethoxyphenyl)sulfonyl)piperazine hydrochloride (CAS 1171081-48-3), molecular formula C12H18N2O3SHCl and molecular weight 306.81 g/mol, is a CATO reference standard with documented purity and traceability.
1-((4-Ethoxyphenyl)sulfonyl)piperazine hydrochloride (C12H18N2O3SHCl) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C12H18N2O3S HCl |
| Molecular Weight | 306.81 g/mol |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Ethoxyphenyl Standards
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- 2-((4-Ethoxyphenyl)amino)acetohydrazide (CAS 100133-39-9)
- 1-(4-Ethoxyphenyl)-5-thioxopyrrolidin-2-one (CAS 100192-41-4)
- N-(4-Ethoxyphenyl)-5,6-dihydro-4H-1,3-thiazin-2-amine (CAS 100253-53-0)
- Ethyl 1-(3-ethoxyphenyl)-3-(trifluoromethyl)-1H-pyrazole-4-carboxylate (CAS 1003579-02-9)
- 13-(2-Ethoxyphenyl)-11,12-dimethyl-4,6,10-trioxatricyclo[7.4.0.0^{3,7}]trideca-1(9),2,7-trien-11-ol (CAS 1005084-97-8)
- 1-(8-(2-ethoxyphenyl)-6,7-dimethyl-7,8-dihydro-6H-[1,3]dioxolo[4,5-g]chromen-6-yl)pyrrolidine (CAS 1005116-71-1)
- Ethyl 3-(3-((1-(4-ethoxyphenyl)-1H-tetrazol-5-yl)methyl)ureido)propanoate (CAS 1005293-30-0)
Recommended Standards
- 2,3-Dichloro-3-(2,4-dimethylphenyl)propiophenone (CAS 898794-44-0)
- N-Benzyl-3-bromobenzenesulfonamide (CAS 625470-36-2)
- 7-methoxy-8-(propan-2-yl)-1,2-dihydroquinazolin-2-one (CAS 342801-19-8)
- 2-Amino-3-(anthracen-9-yl)propanoic acid (CAS 76932-40-6)
- 4-Bromo-1,5-dimethyl-1H-imidazole-2-carboxylic acid (CAS 1367934-84-6)
- (1-(2,4-Dichlorobenzyl)piperidin-3-yl)methanol (CAS 864409-93-8)
- (S)-2-(4-methyl-3-nitrophenyl)pyrrolidine (CAS 1213088-49-3)
- 1-(Propane-1-sulfonyl)piperidine-4-carboxylic acid (CAS 854137-35-2)
- 2-({1-[(tert-butoxy)carbonyl]pyrrolidin-3-yl}oxy)acetic acid (CAS 889952-88-9)
- [Ser39-OH] Tirzepatide (CAS CATO-C4X-324041)
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