1,2-Bis(dichlorophosphino)ethane 1,2-Ethanediylbis[phosphonous dichloride] 28240-69-9 Ethylenebis(dichlorophosphine) P,P inverted exclamation marka-(1,2-Ethanediyl)bis(dichlorophosphane) CAS 28240-69-9
| CAS No. | 28240-69-9 |
| Molecular Formula | C2H4Cl4P2 |
| Molecular Weight | 231.81 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-Bis(dichlorophosphino)ethane 1,2-Ethanediylbis[phosphonous dichloride] 28240-69-9 Ethylenebis(dichlorophosphine) P,P inverted exclamation marka-(1,2-Ethanediyl)bis(dichlorophosphane) (CAS 28240-69-9), molecular formula C2H4Cl4P2 and molecular weight 231.81 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 1,2-Bis(dichlorophosphino)ethane 1,2-Ethanediylbis[phosphonous dichloride] 28240-69-9 Ethylenebis(dichlorophosphine) P,P inverted exclamation marka-(1,2-Ethanediyl)bis(dichlorophosphane) (C2H4Cl4P2) is characterized by organophosphorus functionality, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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-Bis(dichlorophosphino)ethane 1,2-Ethanediylbis[phosphonous dichloride] 28240-69-9 Ethylenebis(dichlorophosphine) P,P inverted exclamation marka-(1,2-Ethanediyl)bis(dichlorophosphane) 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 | C2H4Cl4P2 |
| Molecular Weight | 231.81 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | -1.0 |
| CAS Registry Year (est.) | 1965 |
| Halogen Content | Cl-containing |
Related Bis Standards
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- 1,2-Bis(dichlorophosphino)-1,2-dimethylhydrazine, min. 98% (CAS 37170-64-2)
- 1,2-Bis(dichlorophosphino)benzene (CAS 82495-67-8)
- 1,1'-Bis(dichlorophosphino)ferrocene, 98% (CAS 142691-70-1)
Recommended Standards
- n-(1-(5-Chlorothiophen-2-yl)ethyl)pentan-3-amine (CAS 1154910-18-5)
- 1-Bromo-1,1-dichlorotrifluoroethane (CAS 354-50-7)
- N-[(4-Chlorophenyl)methyl](methylsulfanyl)carbothioamide (CAS 19457-09-1)
- (3-Bromo-2-methoxypyridin-4-yl)boronic acid (CAS 1072946-00-9)
- 5-Ethyl-1-(pentan-3-yl)-1h-pyrazol-4-amine (CAS 1543192-11-5)
- 2-Methyl-4-oxo-4,5,6,7-tetrahydro-1H-indole-3-carboxylic acid (CAS 1114596-35-8)
- 1,6-Hexanediamine, polymer with carbon dioxide (CAS 63512-22-1)
- Dithiobutylamine (CAS 1363594-47-1)
- (1R)-6-Fluoro-7-(2-fluoro-6-hydroxyphenyl)-1-(2-isopropyl-4-methylpyridin-3-yl)-4-((S)-2-methylpiperazin-1-yl)pyrido[2,3-d]pyrimidin-2(1H)-one (CAS 2423110-39-6)
- 2-Chloro-N-(2-((furan-2-ylmethyl)amino)-2-oxoethyl)-N-methylacetamide (CAS 796106-50-8)
- 8-Methyl-3-methylene-8-azabicyclo[3.2.1]octane (CAS 99838-33-2)
- 5-Methyl-2-(5-methyl-furan-2-ylmethyl)-2H-pyrazol-3-ylamine (CAS 957320-37-5)
- Methyl (R)-2-fluoropropanoate (CAS 146805-74-5)
- Semaglutide Impurity 122 (CAS CATO-C4X-2226122)
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