1-(2-Bromo-5-chlorophenyl)-4-methylpiperazine CAS 1261940-25-3
| CAS No. | 1261940-25-3 |
| Molecular Formula | C11H14BrClN2 |
| Molecular Weight | 289.60 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
1-(2-Bromo-5-chlorophenyl)-4-methylpiperazine (CAS 1261940-25-3), molecular formula C11H14BrClN2 and molecular weight 289.60 g/mol, is a CATO reference standard with documented purity and traceability.
1-(2-Bromo-5-chlorophenyl)-4-methylpiperazine (C11H14BrClN2) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine/bromine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), 1-(2-Bromo-5-chlorophenyl)-4-methylpiperazine meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C11H14BrClN2 |
| Molecular Weight | 289.60 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 2 |
Related Bromo Standards
- 1-(2-Bromo-1-cyclobutoxyethyl)-3-chlorobenzene (CAS 1249781-04-1)
- 1-(2-Bromo-1-(cyclopropylmethoxy)ethyl)-4-chlorobenzene (CAS 1249987-60-7)
- 1-(2-Bromo-1-(cyclopropylmethoxy)ethyl)-2-chlorobenzene (CAS 1250556-04-7)
- 1-(5-Bromo-2-chlorobenzyl)piperazine (CAS 1250819-32-9)
- 5-Bromo-3-chloro-N-cyclohexylpyridin-2-amine (CAS 1280786-98-2)
- 1-(4-Bromo-2-chloro-phenyl)-4-methyl-piperazine 1352207-81-8 (CAS 1352207-81-8)
- 1-(4-Bromo-3-chlorophenyl)-4-methylpiperazine (CAS 1426958-37-3)
- 1-(2-Bromo-5-chlorobenzyl)piperazine (CAS 1504099-78-8)
Recommended Standards
- 1-(((2-Bromocyclopentyl)oxy)methyl)-4-chlorobenzene (CAS 1489463-13-9)
- rac 1-Trichloromethyl-1,2,3,4-Tetrahydro-β-carboline (CAS 6649-90-7)
- 2,2,2-Trichloroethyl 4-(aminomethyl)piperidine-1-carboxylate (CAS 959581-00-1)
- 4-Bromo-2,5-dimethylthiophene-3-sulfonyl chloride (CAS 1520470-73-8)
- 1-(3,5-Difluorophenyl)cyclopropan-1-amine hydrochloride (CAS 1269188-75-1)
- 3-Hydroxy-2,8-dimethyl-1,4-phenanthraquinone 65907-77-9 (CAS 65907-77-9)
- 2-Chloro-6-isopropylnicotinic acid (CAS 166331-65-3)
- 3-Iodo-5-methyl-1,1'-biphenyl (CAS 1214329-26-6)
- Tert-butyl 5-hydroxy-2,7-diazaspiro[3.5]Nonane-2-carboxylate (CAS 2384087-20-9)
- 7-Hydroxy-6-methyl-8-nitro-2,3-dihydro-5H-thiazolo[3,2-a]pyridin-5-one (CAS 1303510-46-4)
- 2-(2-(Methoxycarbonyl)phenoxy)acetic acid (CAS 113496-10-9)
- 6-Methoxy-1H-pyrrolo[3,2-c]pyridin-2(3H)-one (CAS 1000342-83-5)
- Gold(1+), [μ-[1-(thio-κS:κS)-β-D-glucopyranose 2,3,4,6-tetraacetato]]bis(triethylphosphine)di-, chloride (CAS 74765-78-9)
- Liraglutide(10-22)TFA Salt (CAS CATO-C4X-199211)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com