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描述
non-ionic
质量水平
形式
viscous liquid
分子量
~1228
组成
lauric acid, ≥40% (balance primarily myristic, palmitic, and stearic acids)
环保替代产品特性
Use of Renewable Feedstocks
Design for Degradation
Learn more about the Principles of Green Chemistry.
sustainability
Greener Alternative Product
浓度
≥40.0% (GC)
杂质
≤3.0% water
折射率
n20/D 1.468 (lit.)
CMC
0.06 mM (20-25°C)
酸值
≤2.2 mg KOH/g
羟基值
96‑108 mg KOH/g
转变温度
cloud point 76 °C
密度
1.095 g/mL at 25 °C (lit.)
HLB
16.7
环保替代产品分类
SMILES字符串
CCCCCCCCCCCC(=O)OCCOCC(C1C(C(CO1)OCCO)OCCO)OCCO
InChI
1S/C26H50O10/c1-2-3-4-5-6-7-8-9-10-11-24(30)34-19-18-31-20-22(32-15-12-27)26-25(35-17-14-29)23(21-36-26)33-16-13-28/h22-23,25-29H,2-21H2,1H3
InChI key
HMFKFHLTUCJZJO-UHFFFAOYSA-N
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一般描述
ECO TWEEN® 20, also known as Polyoxyethylenesorbitan monolaurate, is a bio-based, nonionic detergent manufactured from a natural fatty acid. This surfactant, derived from natural sources, provides various functional advantages, such as detergency, emulsification, and wetting. Its versatility makes it well-suited for a variety of applications in biochemical and biological research, with common uses including cell lysis, protein extraction, nuclei isolation and cell fractionation.
We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Green Chemistry. This product is a biobased surfactant and is aligned with the 7th principle of Green Chemistry "Use of Renewable Feedstocks" and the 10th principle "Design for Degradation".
TWEEN 20 is a polyoxyethylene sorbitol ester that belongs to the polysorbate family. It is a nonionic detergent having a molecular weight of 1,225 daltons, assuming 20 ethylene oxide units, 1 sorbitol, and 1 lauric acid as the primary fatty acid. The ethylene oxide subunits are responsible for the hydrophilic nature of the surfactant, while the hydrocarbon chains provide the hydrophobic environment. Sorbitol forms the backbone ring to which the ethylene oxide polymers are attached.
TWEEN 20 is a polyoxyethylene sorbitol ester that belongs to the polysorbate family. It is a nonionic detergent having a molecular weight of 1,225 daltons, assuming 20 ethylene oxide units, 1 sorbitol, and 1 lauric acid as the primary fatty acid. The ethylene oxide subunits are responsible for the hydrophilic nature of the surfactant, while the hydrocarbon chains provide the hydrophobic environment. Sorbitol forms the backbone ring to which the ethylene oxide polymers are attached.
应用
TWEEN 20 has been used as a component of:
- washing buffer and blocking buffer in Western blotting
- blocking buffer in immunohistochemistry
- washing buffer in ELISA (enzyme linked immunosorbent assay)
- reaction mixture in PCR (polymerase chain reaction)
TWEEN 20 is a nonionic detergent widely used in biochemical applications. It has been used as an emulsifying agent for the preparation of stable oil-in-water emulsions. TWEEN 20 has been used in pre-extraction of membranes to remove peripheral proteins (used at 2% for extraction of membrane-bound proteins).
TWEEN 20 has been used as a blocking agent for membrane based immunoassays at a typical concentration of 0.05%. TWEEN 20 can be used for lysing mammalian cells at a concentration of 0.005 to 0.5%.
TWEEN 20 has been used as a blocking agent for membrane based immunoassays at a typical concentration of 0.05%. TWEEN 20 can be used for lysing mammalian cells at a concentration of 0.005 to 0.5%.
非离子洗涤剂
特点和优势
- 100 % Renewable
- 100 % Bio-based
- Certified to the USDA BioPreferred Program
- Lower carbon footprint than petrochemical-based versions
- High-purity chemical suitable for a wide variety of research applications
制备说明
TWEEN 20 is miscible in water (100mg/mL), yielding a clear, yellow solution. It is also miscible with alcohol, dioxane, and ethyl acetate. TWEEN 20 is insoluble in liquid paraffin and fixed oils.
其他说明
For additional information on our range of Biochemicals, please complete this form.
法律信息
ECO TWEEN is a registered trademark of Croda Inc.
TWEEN is a registered trademark of Croda International PLC
WGK
WGK 1
Ethylene and carbon dioxide production by developing strawberries show a correlative pattern that is indicative of ripening climacteric fruit.
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Jennifer Somerfield et al.
Journal of immunology (Baltimore, Md. : 1950), 185(1), 763-768 (2010-06-04)
Biological therapies, even humanized mAbs, may induce antiglobulin responses that impair efficacy. We tested a novel strategy to induce tolerance to a therapeutic mAb. Twenty patients with relapsing-remitting multiple sclerosis received an initial cycle of alemtuzumab (Campath-1H), up to 120
Human hypoblast formation is not dependent on FGF signalling.
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Developmental Biology, 361(2), 358-363 (2012)
Use of tRNA consensus primers to indicate subgroups of Pseudomonas solanacearum by polymerase chain reaction amplification.
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Applied and Environmental Microbiology, 58(11), 3759-3761 (1992)
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