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5-Bromo-4-chloro-3-indolyl β-D-galactopyranoside

Dangerous Goods

CAS number:7240-90-6    molecular formula:C14H15BrClNO6

overview

compound introduction

X–Gal是β–半乳糖苷酶(β–galactosidase)的底物,水解后呈蓝色。基于这个特点,pUC系列载体DNA(或其他带有lacZ基因载体DNA)以lacZ 缺失细胞为宿主进行转化时、或用M13噬菌体载体DNA进行转染时,如果在平板培养基中加入X–Gal和IPTG,由于β–半乳糖苷酶的α–互补性,可以根据是否呈现白色菌落(或噬菌斑)而方便地挑选出基因重组体。溶解度: 20 mg/mL DMSO [α]20D : -64 ° (C=1, DMF) 使用方法 : 首先把X-Gal配制成20 mg/ml的二甲基甲酰胺(DMF)溶液(-20℃避光保存),然后在100 ml的琼脂培养基中,加入200 μl的上述溶液、100 μl的IPTG(24 mg/ml)和100 μl的Amp(100 mg/ml),制作成X-Gal、IPTG、Amp平板培养基。当DNA片段插入至pUC系列载体(或其他带有lacZ、Amp基因载体),然后转化至lacZ缺失细胞中后,涂布上述的X–Gal、IPTG、Amp平板培养基,可根据长出菌体的蓝白色,而方便地挑选出基因重组体(白色为具有DNA插入片段的基因重组体)。注意事项 : ◆ 培养噬菌体时,Top agar中的添加量为:50 μl/3 ml(20mg/ml)。◆ 含有X-Gal的培养基4℃避光保存,须在1~2周内使用。 X-Gal is a chromogenic substrate for β-galactosidase that produces a rich blue color that can easily be detected visually over background. X-Gal is the substrate of choice for blue-white selection of recombinant bacterial colonies with the lac+ genotype.

Specs

Chinese alias5-溴-4-氯-3-吲哚半乳糖苷 | 5-溴-4-氯-3-吲哚基β-D-半乳糖皮蒽 | 5-溴-4-氯-3-(β-D-吡喃半乳糖苷)吲哚 |
English aliasX-Gal | 7240-90-6 | BCIG | 5-Bromo-4-chloro-3-(beta-D-galactopyranosyloxy)indole | C14H15BrClNO6 | 5-Bromo-4-chloro-3-indolyl beta-galactoside | 5-Bromo-4-chloro-3-indolyl-beta-D-galactoside | 5-Bromo-4-chloro-3-indolyl beta-D-galactopyranoside | CHEBI:75
CAS number7240-90-6molecular formulaC14H15BrClNO6
molecular weight408.63 g/molExact mass10mM in DMSO
PSA115.000 Ųlogp1.200

numbering system

No numbering system information yet

physicochemical properties

No physical and chemical property information yet

Safety information

pictogram:
GHS07
Signal word:
Warning
Hazard Statement:
H315: 引起皮肤刺激 H319: 引起严重眼睛刺激 H335: 可能引起呼吸道刺激 H302: 吞食有害
Statement of Preventive Measures:
P261: 避免吸入灰尘/烟雾/气体/雾/蒸汽/喷雾 P280: 戴防护手套/穿防护服/戴防护眼罩/戴防护面具。 P302+P352: 如皮肤沾染:用水充分清洗。 P321: 特殊处理(请参阅此标签上的...)。 P501: 将内容物/容器处理到。。。 P264: 处理后要彻底洗手。 P271: 仅在室外或通风良好的地方使用。 P270: 使用本产品时,请勿进食、饮水或吸烟。 P304+P340: 如误吸入:将人转移到空气新鲜处,保持呼吸舒适体位。 P362+P364: 脱掉沾污的衣服,清洗后方可重新使用
WGK Germany:
3
Personal protective equipment:
Eyeshields,Gloves,type N95 (US),type P1 (EN143) respirator filter

Production methods and uses

No production method and use information yet

Related

upstream information

No upstream information yet

downstream information

No downstream information yet

MSDS

Found 1 shareMSDS
7240-90-6 | 5-Bromo-4-chloro-3-indolyl β-D-galactopyranoside.pdf