琼脂糖

琼脂糖结构式
琼脂糖
常用名 琼脂糖 英文名 agarose
CAS号 9012-36-6 分子量 630.547
密度 1.8±0.1 g/cm3 沸点 993.9±65.0 °C at 760 mmHg
分子式 C24H38O19 熔点 N/A
MSDS琼脂糖的MSDS|SDS|pdf下载 中文版 美版 闪点 554.9±34.3 °C
符号 GHS02
GHS02
信号词 Warning

 琼脂糖用途


用作生化试剂琼脂、琼脂糖因为有特殊的胶凝性质,尤其有显著的稳固性、滞度和滞后性,并且易吸收水分,有特殊的稳定效应;已经广泛使用于食用、医药、化工、纺织、国防等领域,据不完全统计,琼脂、琼脂糖的用途已有1000多种,被国际上称为“新奇的东亚产品”。在食品工业中可用于生产:水晶软糖、定型软糖、水产品、肉类罐头、果汁饮料、果肉饮料、米酒饮料、乳品饮料、精品、乳品蛋糕。
由于其良好的生物相容性又广泛用于生物分离介质的生产。
简单地说,把琼脂中的琼脂果胶去掉,剩下的部分,就是琼脂糖。
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 琼脂糖名称

[ 中文名 ]: 琼脂糖
[ 英文名 ]: agarose
[中文别名 ]: 琼脂糖凝胶
[英文别名 ]: 更多

 琼脂糖物理化学性质

[ 密度 ]: 1.8±0.1 g/cm3
[ 沸点 ]: 993.9±65.0 °C at 760 mmHg
[ 分子式 ]: C24H38O19
[ 分子量 ]: 630.547
[ 闪点 ]: 554.9±34.3 °C
[ 精确质量 ]: 630.200745
[ PSA ]: 285.37000
[ LogP ]: -2.85
[ 蒸汽压 ]: 0.0±0.6 mmHg at 25°C
[ 折射率 ]: 1.679
[ 储存条件 ]:

常温密闭避光,通风干燥处

[ 稳定性 ]:

Analysis Note The following is a list of properties associated with our agaroses:

Sulfate content - used as an indicator of purity, since sulfate is the major ionic group present.

Gel strength - the force that must be applied to a gel to cause it to fracture.

Gel point - the temperature at which an aqueous agarose solution forms a gel as it cools. Agarose solutions exhibit hysteresis in the liquid-to-gel transition - that is, their gel point is not the same as their melting temperature.

Electroendosmosis (EEO) - a movement of liquid through the gel. Anionic groups in an agarose gel are affixed to the matrix and cannot move, but dissociable counter cations can migrate toward the cathode in the matrix, giving rise to EEO. Since electrophoretic movement of biopolymers is usually toward the anode, EEO can disrupt separations because of internal convection.

Application Routine use agarose is ideal for everyday analysis of nucleic acids by gel electrophoresis or blotting (Northern or Southern) and is also suitable for protein applications such as Ouchterlony and radial immunodiffusion (RID). Has low ethidium bromide and SYBR Green background staining.

[ 计算化学 ]:

1.疏水参数计算参考值(XlogP):无

2.氢键供体数量:0

3.氢键受体数量:1

4.可旋转化学键数量:6

5.互变异构体数量:7

6.拓扑分子极性表面积17.1

7.重原子数量:15

8.表面电荷:0

9.复杂度:178

10.同位素原子数量:0

11.确定原子立构中心数量:0

12.不确定原子立构中心数量:0

13.确定化学键立构中心数量:0

14.不确定化学键立构中心数量:0

15.共价键单元数量:1

[ 更多 ]: 1. 性状:白色或黄色珠状凝胶颗粒或粉末。 2. 密度(g/mL,20℃): 1.0

3. 相对蒸汽密度(g/mL,空气=1):未确定

4. 熔点(ºC):260

5. 沸点(ºC,常压):未确定

6. 沸点(ºC,5.2kPa):未确定

7. 折射率:未确定

8. 闪点(ºC):38

9. 比旋光度(º):未确定

10. 自燃点或引燃温度(ºC):未确定

11. 蒸气压(kPa,25ºC):未确定

12. 饱和蒸气压(kPa,60ºC):未确定

13. 燃烧热(KJ/mol):未确定

14. 临界温度(ºC):未确定

15. 临界压力(KPa):未确定

16. 油水(辛醇/水)分配系数的对数值:未确定

17. 爆炸上限(%,V/V):未确定

18. 爆炸下限(%,V/V):未确定

19. 溶解性: 有吸湿性。溶于热水,不溶于冷水和有机溶剂。

 琼脂糖毒性和生态

琼脂糖生态学数据:

通常对水是不危害的,若无政府许可,勿将材料排入周围环境。

琼脂糖毒性英文版

 琼脂糖安全信息

[ 符号 ]: GHS02
GHS02
[ 信号词 ]: Warning
[ 危害声明 ]: H226
[ 个人防护装备 ]: Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter
[ 危险品运输编码 ]: NONH for all modes of transport

 琼脂糖文献102

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 琼脂糖英文别名

MFCD00081294
EINECS 232-731-8