PEG20-Tos CAS 2179113-08-5
| CAS No. | 2179113-08-5 |
| Molecular Formula | C47H88O23S |
| Molecular Weight | 1053.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 1053.25 g/mol gives PEG20-Tos distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies PEG20-Tos (CAS 2179113-08-5), a certified reference material (molecular formula C47H88O23S, MW 1053.25 g/mol) for analytical method development and quality control.
Structurally, PEG20-Tos (C47H88O23S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 1053.25 g/mol, it falls into the high-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures PEG20-Tos 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 | C47H88O23S |
| Molecular Weight | 1053.25 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1998 |
| Sulfur Atoms | 1 |
Recommended Standards
- 4'',4''''',4'''''''',4'''''''''''-(Ethene-1,1,2,2-tetrayl)tetrakis(([1,1':4',1''-terphenyl]-4-carbaldehyde)) (CAS 2567920-74-3)
- Caspofungin Impurity 20 (CAS CATO-C4X-157520)
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- 4,6-Dimethoxy-3-(2-methoxyphenyl)-2-methylbenzofuran (CAS 922140-92-9)
- N-Boc-N-methylpiperazine (CAS 53788-49-1)
- 9-(4-(Benzyloxy)butyl)-9H-purin-6-amine (CAS 121683-05-4)
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- tert-Butyl 4-aminopyridine-2-carboxylate (CAS 868171-68-0)
- Benzylpenicillin Impurity 83 (CAS CATO-C4X-189983)
- Semaglutide impurity 104(Fmoc-D-His-Aib) (CAS 2171211-18-8)
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