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中文名称英文名称CAS 编号规格目录价所属品牌订货号
聚乙二醇 4000PEG 400025322-68-3250G¥310.00ALDRICH81240
聚乙二醇 4000PEG 400025322-68-3500G¥550.00ALDRICH81240
聚乙二醇 4000PEG 400025322-68-31KG¥972.00ALDRICH81240
聚乙二醇 4000PEG 400025322-68-35KG¥4,300.00ALDRICH81240
品牌ALDRICH
产品名称 聚乙二醇 4000 : PEG 4000 ——【产品编号:ALDRICH-81240】
CAS编号25322-68-3
别名81242,95904
级别超纯级
纯度&分析此产品为粉状或片状,average mol wt 4000
TipsBSZH品质推荐:SIGMA-ALDRICH 进口高等级试剂,多重遴选,国际标准严苛测试,全球生物化学产品质量标杆,满足用户更高应用要求。 使用SIGMA-ALDRICH品质优异、表现卓越的试剂类产品,将有助于使您的研究项目更早获益。
分子式H(OCH2CH2)nOH
分子量average mol wt 4000
储存条件常温避光保存。
性质

~说明:分离分析含氧化合物(如醇、醛)、芳香族胺、低级脂肪酸酯和含水样品。

~vapor density   >1 (vs air)
vapor pressure   <0.01 mmHg ( 20 °C)
form   platelets
autoignition temp.   581 °F
mol wt   Mn 3,500-4,500
  average Mn 4,000
mp   58-61 °C
Ω-end   OH
α-end   OH

原产地美国
描述

~Other Notes
用于制备高生物特异性细胞粘附基底的细胞粘附肽接枝的聚合物网络。[4]

Application
Polyethylene glycol (PEG) platelets were used:
• in PEG-directed gene delivery of protoplast transfection and incubation[2]
• to prepare extraction for measuring cytosolic phosphoenolpyruvate carboxykinase (PEPCK) from plant tissues
• as DNA transformation agent in a study of transient gene expression of plant protoplasts, derived from rice leaf sheaths.[3]
• in preparing isothermal assembly buffer and TSS broth preparation for unique nucleotide sequence (UNS)-guided assembly of repetitive DNA parts[5]
• in transformation of DNA into log-phase cells of the budding yeast Saccharomyces cerevisiae.[1]
• as DNA transformation reagent[6]
General description
Polyethylene glycol (PEG) is a hydrophilic polymer. It can be easily synthesized by the anionic ring opening polymerization of ethylene oxide, into a range molecular weights and variety of end groups. When crosslinked into networks PEG can have high water content, forming “hydrogels PEG is a suitable material for biological applications because it does not trigger an immune response.

供货状态True
参考文献N/A
类型BSZH 高等级基础试剂
安全信息

~个人防护装备  Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter
RIDADR  NONH for all modes of transport
WGK德国  1