Dibutyl (difluoromethane)phosphonate CAS 681-83-4
| CAS No. | 681-83-4 |
| Molecular Formula | C9H19F2O3P |
| Molecular Weight | 244.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 244.22 g/mol gives Dibutyl (difluoromethane)phosphonate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Dibutyl (difluoromethane)phosphonate (CAS 681-83-4), molecular formula C9H19F2O3P and molecular weight 244.22 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Dibutyl (difluoromethane)phosphonate (C9H19F2O3P) contains a phosphonate group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of -0.5, corresponding to approximately 0 ring(s) or double-bond equivalent(s). With a molecular weight of 244.22 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.
CATO manufactures Dibutyl (difluoromethane)phosphonate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H19F2O3P |
| Molecular Weight | 244.22 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | -0.5 |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | F-containing |
Related Dibutyl Standards
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- Dibutyl Chloromethyl Phosphonate (CAS 3074-81-5)
- 1,3-Dibutyl-2-thioxoimidazolidine-4,5-dione (CAS 143413-73-4)
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Recommended Standards
- 6-Fluoro-7-nitro-9H-fluoren-2-amine (CAS 2267-86-9)
- Diethyl (2-hydroxybenzyl)phosphonate (CAS 50375-72-9)
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- Diethyl (4-methoxyphenyl)phosphonate (CAS 3762-33-2)
- 2-methyl-3-(piperazin-1-yl)pyrazine (CAS 93263-83-3)
- 4-(3-Fluorophenyl)butan-2-one (CAS 3506-77-2)
- (R)-2-((tert-butoxycarbonyl)amino)-2-(naphthalen-2-yl)acetic acid (CAS 93779-36-3)
- N-(2-Hydroxyethyl)-N-methyl-2-pyrrolidinecarboxamide hydrochloride (CAS 1236260-61-9)
- 1,5,5,6,6,10-HexachlorodecaneDiscontinued (CAS 90943-97-8)
- 3-(Bromomethyl)-1-(4-fluorophenyl)pyrrolidine (CAS 1707610-34-1)
- (E)-N-(2-(3-chloro-5-(trifluoromethyl)pyridin-2-yl)vinyl)-4-fluoroaniline (CAS 303997-80-0)
- 1-(1-(2,6-Difluorophenyl)-5-methyl-1H-1,2,4-triazol-3-yl)ethanone (CAS 1000572-09-7)
- 3-(Tert-butyl)-5-oxo-2,5-dihydro-1H-pyrazole-1-carbothioamide (CAS 1024224-32-5)
- D-Pro38-Tirzepatide (CAS CATO-CPTD788901)
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