- 商品介绍
- 规格参数
- 包装参数
General description
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.
Application
Tween 20 has been used along with PBS to wash plates in ELISA technique.
非离子洗涤剂
Preparation Note
经纯化用于除去过氧化物和醛
Legal Information
TWEEN is a registered trademark of Croda International PLC
| Quality Segment | 200 |
| description | non-ionic |
| form | viscous liquid |
| mol wt | ~1228 |
| contains | BHT as antioxidant |
| impurities | ≤0.5 μmol/g Peroxides,≤1.0 μmol/g Carbonyls,≤3.0% water |
| refractive index | n |
| CMC | 0.06 mM (20-25°C) |
| transition temp | cloud point 76 °C |
| density | 1.095 g/mL at 25 °C (lit.),1.1 g/cm3 at 25 °C (lit.) |
| HLB | 16.7 |
| storage temp. | 2-8°C |
| SMILES string | 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 |
| 长度(mm) | |
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| 重量(kg) |
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¥ 1082.93
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¥ 1048.84
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¥ 580.62
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¥ 1987.51
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¥ 1958.88
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¥ 860.58
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¥ 1066.63
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¥ 968.94
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¥ 520.54
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¥ 915.42
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