Propargyl-PEG4-Tos CAS 875770-32-4
| CAS No. | 875770-32-4 |
| Molecular Formula | C18H26O7S |
| Molecular Weight | 386.46 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Propargyl-PEG4-Tos is closely related to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Propargyl-PEG4-Tos (CAS 875770-32-4) is a high-purity analytical reference standard with the molecular formula C18H26O7S and a molecular weight of 386.46 g/mol.
Based on its molecular formula C18H26O7S, Propargyl-PEG4-Tos contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 386.46 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 Propargyl-PEG4-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 | C18H26O7S |
| Molecular Weight | 386.46 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Sulfur Atoms | 1 |
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- (4-(3-Fluorobicyclo[1.1.1]Pentan-1-yl)phenyl)methanol (CAS 1934767-33-5)
- 4-Nitroso-N-2-pyridinylbenzenesulfonamide (CAS 1202816-93-0)
- Ethyl 2-chloro-2-(2-phenylhydrazono)acetate (CAS 28663-68-5)
- ((1R,3S)-3-Aminocyclopentyl)(propyl)phosphinic acid (CAS 536756-69-1)
- 2-((5-((4-Chlorobenzyl)thio)-1,3,4-thiadiazol-2-yl)thio)-N-(4-ethylphenyl)acetamide (CAS 499101-90-5)
- Nicarbazine (CAS 330-95-0)
- 2-(1-Cyclopentyl-1h-pyrazol-3-yl)ethan-1-amine (CAS 1328640-71-6)
- Tirzepatide Impurity 51 (CAS CATO-C4X-324051)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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