Tetraethyl 1,4-phenylenebis(phosphonate) CAS 21267-14-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 21267-14-1 |
| Molecular Formula | C14H24O6P2 |
| Molecular Weight | 350.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Tetraethyl 1,4-phenylenebis(phosphonate) (CAS 21267-14-1) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C14H24O6P2. Molecular weight: 350.28 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C14H24O6P2 |
| Molecular Weight | 350.28 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1963 |
Related Tetraethyl Standards
- Tetraethyl 1,3-phenylenebis(phosphonate) (CAS 25944-79-0)
- Tetraethyl (1-fluorobutane-1,1-diyl)bis(phosphonate) (CAS 1312032-27-1)
- Tetraethyl butane-1,2,2,4-tetracarboxylate (CAS 70600-48-5)
- Tetraethyl (1-fluorobut-3-ene-1,1-diyl)bis(phosphonate) (CAS 1312032-28-2)
- Tetraethyl(4-aminobutylidenE)bisphosphonate (CAS 90315-14-3)
- 3,3,7,7-Tetraethyl-5-(trifluoromethyl)-4,6-dioxa-3,7-disilanonane (CAS 1922958-20-0)
- Tetraethyl cyclobutane-1,1,2,2-tetracarboxylate (CAS 80213-18-9)
- Tetraethyl hexane-1,6-diylbis(phosphonate) (CAS 5391-92-4)
Recommended Standards
- 2-Fluoro-2-deoxyglucose tetraacetate (CAS 141395-48-4)
- 3-((4-(Tert-butyl)phenyl)amino)-1-(3,4-dichlorophenyl)propan-1-one (CAS 477320-22-2)
- Rel-(3R,4R)-1,2,3,4-Tetrahydro-1-oxo-3-(3-pyridinyl)-2-(2,2,2-trifluoroethyl)-4-isoquinolinecarboxylic acid (CAS 1424799-69-8)
- Toludesvenlafaxine HCl dihydrate (CAS 2137075-66-0)
- 2-(6-Bromo-4-(difluoromethyl)-5-(trifluoromethyl)pyridin-3-yl)acetonitrile (CAS 1807003-76-4)
- 3-Chloro-4-(4-methylpiperazin-1-yl)benzenamine (CAS 16154-72-6)
- 6-Bromo-5-chloropyrazine-2-carboxylic acid (CAS 1017604-40-8)
- 4-Chlorobutyl carbonochloridate (CAS 37693-18-8)
- 2-Chloro-3-methylbenzhydrazide (CAS 1023883-70-6)
- D-Phe6-Tirzepatide (CAS CATO-CPTD788925)
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