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Polyethylene glycol monolaurate. Uses: Designed for use in research and industrial production. Additional or Alternative Names: THESIT(R);PEG 600 MONOLAURATE;PEG 4000 MONOLAURATE;PEG 400 MONOLAURATE;PEG 6000 MONOLAURATE;PEG 1540 MONOLAURATE;PEG 200 MONOLAURATE;PEG 300 MONOLAURATE. Product Category: Polymer/Macromolecule. CAS No. 9004-81-3. Molecular formula: C12H23O2.(C2H4O)n.H. Product ID: ACM9004813. Alfa Chemistry ISO 9001:2015 Certified.
Tween 20. Uses: Designed for use in research and industrial production. Additional or Alternative Names: Polysorbate 20; Polyethylene glycol sorbitan monolaurate. Product Category: Non-ionic Surfactants. Appearance: Viscous amber liquid. CAS No. 9005-64-5. Molecular formula: C58H114O26. Mole weight: 1228. IUPACName: 2-[2-[3,4-bis(2-hydroxyethoxy)oxolan-2-yl]-2-(2-hydroxyethoxy)ethoxy]ethyl dodecanoate. Density: 1.11 g/mL at 20 °C. ECNumber: 500-018-3. Product ID: ACM9005645. Alfa Chemistry ISO 9001:2015 Certified.
Tween-20 is a polysorbate surfactant whose stability and relative non-toxicity allow it to be used as a detergent and emulsifier in a number of domestic, scientific, and pharmacological applications. It is a polyoxyethylene derivative of sorbitan monolaurate, and is distinguished from the other members in the Tween range by the length of the polyoxyethylene chain. The commercial product contains a range of chemical species.Biological Applications:Tween 20 has a broad range of applications. For example, it is used: to stabilize purified protein derivative (PPD) solution, used in skin testing for tuberculosis exposure, as a blocking agent in immunologic assays, such as Western blots and ELISA and as a solubilizing agent of membrane proteins for lysing mammalian cells, at a concentration of 0.05 to 0.5%.CAS No:9005-64-5. Group: Biochemicals. Alternative Names: Polysorbate 20; Polyethylene glycol sorbitan monolaurate. Grades: Molecular Biology Grade. CAS No. 9005-64-5. Pack Sizes: 100ml, 500ml, 1L, 4L, 10L. US Biological Life Sciences.
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Polyoxyethylene Alkyl Ethers
Polyoxyethylene alkyl ethers vary considerably in their physical appearance from liquids, to pastes, to solid waxy substances. They are colorless, white, cream-colored or pale yellow materials with a slight odor. CAS No. 9004-95-9. Product ID: PE-0498. Category: Sweetening agent. Product Keywords: Pharmaceutical Excipients; Excipients for Solid Dosage Form; Polyoxyethylene Alkyl Ethers; Sweeteners Excipients; Sweetening agent; /; 9004-95-9; 9004-95-9. UNII: NA. Chemical Name: Polyethylene glycol monocetyl ether; Polyethylene glycol monolauryl ether; Polyethylene glycol monooleyl ether; Polyethylene glycol monostearyl ether. Stability and Storage Conditions: Polyoxyethylene alkyl ethers are chemically stable in strongly acidic or alkaline conditions. The presence of strong electrolytes may, however, adversely affect the physical stability of emulsions containing polyoxyethylene alkyl ethers.On storage, polyoxyethylene alkyl ethers can undergo autoxidation, resulting in the formation of peroxides with an increase in acidity. Many commercially available grades are thus supplied with added antioxidants. Typically, a mixture of 0.01% butylated hydroxyanisole and 0.005% citric acid is used for this purpose. Polyoxyethylene alkyl ethers should be stored in an airtight container, in a cool, dry place. Source and Preparation: Polyoxyethylene alkyl ethers are prepared by the condensation of linear fatty alcohols
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