Methylenebis(dichlorophosphonic acid) CAS 1499-29-2
| CAS No. | 1499-29-2 |
| Molecular Formula | CH2Cl4O2P2 |
| Molecular Weight | 249.78 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Methylenebis(dichlorophosphonic acid) 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.
Methylenebis(dichlorophosphonic acid) (CAS 1499-29-2) is a high-purity analytical reference standard with the molecular formula CH2Cl4O2P2 and a molecular weight of 249.78 g/mol.
Structurally, Methylenebis(dichlorophosphonic acid) (CH2Cl4O2P2) contains organophosphorus functionality, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of -1.0, corresponding to approximately 0 ring(s) or double-bond equivalent(s). With a molecular weight of 249.78 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
Physical & Chemical Properties
| Molecular Formula | CH2Cl4O2P2 |
| Molecular Weight | 249.78 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.) | 1957 |
| Halogen Content | Cl-containing |
Related Methylenebis Standards
- 1,1'-(Methylenebis(4,1-phenylene))bis(ethan-1-one) (CAS 790-82-9)
- 4,4'-Methylenebis(2,5-dimethylaniline) (CAS 5339-30-0)
- 4,4'-Methylenebis(2-ethylaniline) (CAS 19900-65-3)
- 5,5'-Methylenebis(2-hydroxybenzaldehyde) (CAS 3046-82-0)
- 4,4’-Methylenebis(2,6-dimethylphenol) (CAS 5384-21-4)
- 4,4＇-Methylenebis(2-methylcyclohexylamine) (mixture of isomers) (CAS 6864-37-5)
- 5,5'-Methylenebis(pyrimidine-2,4(1H,3H)-dione) (CAS 1758-94-7)
- 1,1'-Methylenebis(1H-pyrazole-4-carboxylic acid) (CAS 2610635-91-9)
Recommended Standards
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- N-(4-Chlorobenzyl)-2-(1-cyclohexen-1-yl)ethanamine Hydrochloride (CAS 356532-23-5)
- methyl 7-chloro-3-methylthieno[2,3-c]pyridine-4-carboxylate (CAS 2306274-79-1)
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- 1-(2-(6-Methoxy-4-methylpyridin-3-yl)pyrrolidin-1-yl)ethanone (CAS 1352503-60-6)
- 4-Chloro-2-fluoro-3-methoxyphenol (CAS 1993479-29-0)
- Ivabradine Impurity 53 (CAS CATO-C4X-111953)
- 4,7-Dihydroxy-1H-benzo[d]imidazol-2(3H)-one (CAS 89795-65-3)
- 604-44-4 4-Chloro-1-naphthol 1-Naphthalenol, 4-chloro- 1-Naphthol, 4-chloro- (8CI) 1-Chloro-4-hydroxynaphthalene 4-Chloro-alpha-naphthol EINECS 210-068-5 NSC 44345 (CAS 604-44-4)
- 2-(Difluoromethyl)-6-(trifluoromethyl)pyridine-4-acetic acid (CAS 1416822-08-6)
- 4-Cyano-1-methylpiperidine-4-carboxylic acid (CAS 1542938-62-4)
- a-Bag Cell Peptide (1-8) (CAS 87549-53-9)
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