Carboxy-PEG4-phosphonic acid CAS 1623791-69-4
| CAS No. | 1623791-69-4 |
| Molecular Formula | C11H23O9P |
| Molecular Weight | 330.27 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Carboxy-PEG4-phosphonic acid 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.
Carboxy-PEG4-phosphonic acid (CAS 1623791-69-4) is a high-purity analytical reference standard with the molecular formula C11H23O9P and a molecular weight of 330.27 g/mol.
Based on its molecular formula C11H23O9P, Carboxy-PEG4-phosphonic acid contains a carbohydrate-derived structure, a phosphate ester group; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 330.27 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry.
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 | C11H23O9P |
| Molecular Weight | 330.27 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 0.5 |
| CAS Registry Year (est.) | 1993 |
Related Carboxy Standards
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Recommended Standards
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- Ethyl (2-​iodophenoxy)​acetate (CAS 90794-32-4)
- Ethyl 2-(3-chloro-4-fluorophenyl)-2-oxoacetate (CAS 845790-53-6)
- 6-Hydroxyquinoline-5-carbonitrile (CAS 244059-99-2)
- 1-(3,4-Dimethoxyphenethyl)-3-(4-methoxyphenyl)thiourea (CAS 38508-01-9)
- 2-(2-Chloro-5-methylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 2246825-67-0)
- Peptide Impurity 15 (CAS 1227750-69-7)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com