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Merck
CN

B9146

Sigma-Aldrich

5-溴-4-氯-3-吲哚基-β-吡咯-D-半乳糖苷

≥98%, powder, suitable for identification of lac+ bacterial colonies

别名:

5-溴-4-氯-3-吲哚基-β-吡咯-D-半乳糖苷, BCIG, X-Gal

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关于此项目

经验公式(希尔记法):
C14H15BrClNO6
化学文摘社编号:
分子量:
408.63
Beilstein:
1402009
EC 号:
MDL编号:
UNSPSC代码:
12352204
PubChem化学物质编号:
NACRES:
NA.83
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产品名称

5-溴-4-氯-3-吲哚基-β-吡咯-D-半乳糖苷, ≥98%

方案

≥98%

表单

powder

溶解性

DMF: methanol (1:1): soluble 50 mg/mL

适用性

suitable for identification of lac+ bacterial colonies

储存温度

−20°C

SMILES字符串

OC[C@H]1O[C@@H](Oc2c[nH]c3ccc(Br)c(Cl)c23)[C@H](O)[C@@H](O)[C@H]1O

InChI

1S/C14H15BrClNO6/c15-5-1-2-6-9(10(5)16)7(3-17-6)22-14-13(21)12(20)11(19)8(4-18)23-14/h1-3,8,11-14,17-21H,4H2/t8-,11+,12+,13-,14-/m1/s1

InChI key

OPIFSICVWOWJMJ-AEOCFKNESA-N

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应用

5-溴-4-氯-3-吲哚 β-D-半乳吡喃糖苷已被用于验证Caki-2/LacZ克隆的转导是否成功。它还可用于转化子的蓝白班筛选。
X-Gal是β-半乳糖苷酶的发色底物,可产生丰富的蓝色,与背景相比可以直观地检测到。 X-Gal是lac+基因型重组细菌菌落蓝白斑筛选的首选基质。

制备说明

储备溶液(100 mg/ml)是通过将 X-Gal 溶解在二甲基甲酰胺中制备的,该溶液应避光储存在 −20 °C。无需灭菌。

储存分类代码

11 - Combustible Solids

WGK

WGK 3

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

Eyeshields, Gloves, type N95 (US)

法规信息

涉药品监管产品
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General protocols for growth of competent cells and their transformation (uptake of DNA).

感受态细胞生长及其转化(吸收DNA)的通用实验方案。

转化是将外源DNA引入细胞,引起遗传变异或基因修饰的过程。1928年,Griffith首次报道了利用肺炎链球菌进行的转化。Avery等人于1944年证明了DNA转化的原理。

Transformation introduces exogenous DNA into cells, a fundamental genetic modification process demonstrated in Streptococcus pneumoniae.

实验方案

Technical Article on competent cells. Transformation is a process by which some bacteria take up foreign genetic material (naked DNA) from the environment.

酵母因能够快速生长并具有分散的细胞而被认为是用于真核生物研究的模范系统。

Yeasts are considered model systems for eukaryotic studies as they exhibit fast growth and have dispersed cells.

在从小型培养到发酵级的不同规模下培养大肠杆菌。包括了用于启动起始培养物、悬浮细胞、单一培养物和平板噬菌体M13的实验方案。

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