Ammonium tetrakis(4-chlorophenyl)borate CAS 215857-51-5
| CAS No. | 215857-51-5 |
| Molecular Formula | C24H16BCl4 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Ammonium tetrakis(4-chlorophenyl)borate (C24H16BCl4H4N) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Ammonium tetrakis(4-chlorophenyl)borate (CAS 215857-51-5) is a high-purity analytical reference standard with the molecular formula C24H16BCl4H4N and a molecular weight of 475.04 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 | C24H16BCl4 H4N |
| Molecular Weight | 475.04 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 13.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2018 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Ammonium Standards
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Recommended Standards
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- N-(7-oxo-6,7-dihydro-5H-indeno[5,6-d][1,3]dioxol-5-yl)cyclopropanecarboxamide (CAS 444151-83-1)
- (6-Phenyl-[1,2,4]triazolo[4,3-b]pyridazin-3-yl)methanamine (CAS 1002310-51-1)
- 2,5-Dibromopyrazine (CAS 23229-26-7)
- 7,8,9,10-Tetrahydro-1H-pyrazolo[3',4':4,5]pyrimido[1,2-a]azepin-4(6H)-one (CAS 23942-31-6)
- Semaglutide impurity 286 (CAS CATO-C4X-2226286)
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