- ￥625
- Sigma-Aldrich
- 进口
- A4382-250G
- 2025年07月11日
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- 文献和实验
- 技术资料
- 保存条件：
常温
- 保质期：
根据瓶身LOT号查询
- 英文名：
4-Aminoantipyrine
- 库存：
有现货
- 供应商：
浙江羽翔生物科技有限公司
- CAS号：
83-07-8
- 规格：
250G
属性：
质量水平：300
等级：reagent grade
测定：≥97% (HPLC)
形式：powder
Mp：105-110 °C (lit.)
溶解性：water: 50 mg/mL
SMILES string：CN1N(c2ccccc2)C(=O)C(N)=C1C
InChI：1S/C11H13N3O/c1-8-10(12)11(15)14(13(8)2)9-6-4-3-5-7-9/h3-7H,12H2,1-2H3
InChI key：RLFWWDJHLFCNIJ-UHFFFAOYSA-N
包装：
10, 25, 50, 100, 250 g in glass bottle
应用：
在苯酚和过氧化物酶存在的情况下测定葡萄糖的试剂。
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文献和实验Improved material properties of solution-cast starch films: Effect of varying amylopectin structure and amylose content of starch from genetically modified potatoes.
High-amylose potato starches were produced through genetic modification resulting in changed granule morphology and composition, with higher amylose content and increased chain length of amylopectin. The increased amylose content and structural changes in amylopectin enhanced film-forming behavior and improved barrier and tensile properties in starch films. The molecular structure in these starches was related to film-forming properties. Solution-cast films of high-amylose starch revealed a homogeneous structure with increasing surface roughness at higher amylose content, possibly due to amylose aggregation. Films exhibited significantly higher stress and strain at break compared with films of wild-type starch, which could be attributable to the longer chains of amylopectin being involved in the interconnected network and more interaction between chains, as shown using transmission electron microscopy. The oxygen permeability of high-amylose starch films was significantly decreased compared with wild-type starch. The nature of the modified starches makes them an interesting candidate for replacement of non-renewable oxygen and grease barrier polymers used today.
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