≥97% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
Room temperature Ships Normal Check lot-specific COA for exact specifications.
SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.
Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
Product description：
Methylenebis(phosphonic dichloride) is an organophosphorus compound that is commonly used in phosphonylation reactions. It is more reactive and the rate of reaction is faster compared to POCl3. This is because the phosphorus center is more electrophilic due to the lack of electron back-donation from the CH2 group.
| Pubchem Sid | 488195071 |
|---|---|
| Canonical Smiles | C(P(=O)(Cl)Cl)P(=O)(Cl)Cl |
| IUPAC Name | bis(dichlorophosphoryl)methane |
| InChIKey | VRXYCDTWIOCJBH-UHFFFAOYSA-N |
| INCHI | 1S/CH2Cl4O2P2/c2-8(3,6)1-9(4,5)7/h1H2 |
| Isomeric SMILES | C(P(=O)(Cl)Cl)P(=O)(Cl)Cl |
| UN Number | 3261 |
| Packing Group | I |
| Molecular Weight | 249.78 |
| Reaxy-Rn | 1072979 |
| Reaxys-RN_link_address | https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=1072979&ln= |
Comprehensive hazard, handling, storage, and regulatory compliance document.
Download SDS →Lot-specific quality data. Enter your lot number to retrieve the exact COA.
Look up COA →Full quality attributes and acceptance criteria for this grade.
View spec sheet →Taxonomy Tree
| Kingdom | Organic compounds |
|---|---|
| Superclass | Organic acids and derivatives |
| Class | Organic phosphonic acids and derivatives |
| Subclass | Not available |
| Intermediate Tree Nodes | Not available |
| Direct Parent | Organic phosphonic acids and derivatives |
| Alternative Parents | Organophosphorus compounds Organic oxides Hydrocarbon derivatives |
| Molecular Framework | Aliphatic acyclic compounds |
| Substituents | Organophosphonic acid derivative - Organic oxygen compound - Organic oxide - Hydrocarbon derivative - Organophosphorus compound - Aliphatic acyclic compound |
| Description | This compound belongs to the class of organic compounds known as organic phosphonic acids and derivatives. These are organic compounds containing phosphonic acid or a derivative thereof. |
| External Descriptors | Not available |
Find and download the COA for your product by matching the lot number on the packaging.
| Lot Number | Certificate Type | Date | Item |
|---|---|---|---|
 C2324188 | Certificate of Analysis | Jan 26, 2026 | M332858 |
| C2324183 | Certificate of Analysis | Jan 26, 2026 | M332858 |
| C2324181 | Certificate of Analysis | Jan 26, 2026 | M332858 |
| C2324180 | Certificate of Analysis | Jan 26, 2026 | M332858 |
| C2324179 | Certificate of Analysis | Jan 26, 2026 | M332858 |
| C2324189 | Certificate of Analysis | Jan 03, 2023 | M332858 |
| C2505165 | Certificate of Analysis | Jan 03, 2023 | M332858 |
| Sensitivity | Moisture sensitive |
|---|---|
| Melt Point(°C) | 102-104° C (lit.) |
| Molecular Weight | 249.800 g/mol |
| XLogP3 | 1.800 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 2 |
| Rotatable Bond Count | 2 |
| Exact Mass | 249.825 Da |
| Monoisotopic Mass | 247.828 Da |
| Topological Polar Surface Area | 34.100 Ų |
| Heavy Atom Count | 9 |
| Formal Charge | 0 |
| Complexity | 157.000 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| The total count of all stereochemical bonds | 0 |
| Covalently-Bonded Unit Count | 1 |
