76-59-5
76-59-5 结构式
基本信息
溴麝香草酚蓝
别名:溴麝香草酚蓝
3,3′一二溴麝香草酚磺酰酞
溴百里香酚兰
溴百里香酚蓝
3,3ˊ-二溴麝香草酚磺酞
溴百里蓝(0.1%INCA.50%乙醇)(滴定用)
溴百里蓝指示剂
溴草酚藍
溴麝香藍
溴百里酚蓝 /别名:溴麝香草酚蓝
3,3''-二溴麝香草酚磺酜酞
3',3"-二溴百里香酚蓝
3',3"-二溴麝香草酚磺酰酞
溴百里酚蓝, ACS
3,3'-DIBROMETHYLMOLSULFONPHTHALEIN
3',3''-DIBROMOTHYMOLSULFONAPHTHALEIN
3',3''-DIBROMOTHYMOLSULFONEPHTHALEIN
3',3'-DIBROMOTHYMOLSULFONEPHTHALEIN
3',3''-DIBROMOTHYMOLSULFONPHTHALEIN
3,3''-DIBROMOTHYMOLSULFONPHTHALEIN
3,3'-DIBROMOTHYMOLSULFONPHTHALEIN
3,3'-DIBROMOTHYMOLSULFOPHTHALEIN
A,A-BIS(6-BROMO-5-HYDROXYCARBACRYL)-A-HYDROXY-O-TOLUENESULFONIC ACID G-SULTONE
BETZ 0417
BROMOTHYMOL BLUE
BROMOTHYMOL BLUE ETHANOL(50)
BROMOTHYMOL BLUE TS
BROMTHYMOL BLUE
BTB
DIBROMOTHYMOL SULFONEPHTHALEIN
DIBROMOTHYMOLSULFOPHTHALEIN
PHENOL, 4,4'-(1,1-DIOXIDO-3H-2,1-BENZOXATHIOL-3-YLIDENE)BIS[2-BROMO-3-METHYL-6-(1-METHYLETHYL)-
PHENOL, 4,4'-(3H-2,1-BENZOXATHIOL-3-YLIDENE)BIS[2-BROMO-3-METHYL-6-(1-METHYLETHYL)-, S,S-DIOXIDE
物理化学性质
≥8000 at 326-332nm in methanol
≥9000 at 279-285nm in methanol
安全数据
常见问题列表
溴百里酚蓝呈无色或浅玫瑰结晶性粉末状，易溶于醇、稀碱溶液和氨水中，微溶于水，不溶于石油醚。其遇酸性时为黄色，碱性时为蓝色。
溴麝香草酚蓝是一种酸碱指示剂，变色范围pH6.0(黄)～7.6(蓝)。普通水是中性，pH也就是7左右，差不多呈浅绿。
溴百里酚蓝是弱酸和弱碱的pH指示剂，在分析化学中用作酸碱指示剂和色谱分析试剂；也可用作染料和代谢产物。
• pH指示剂 — 在近中性时具有精确的颜色转换，酸性时为黄色，碱性时为蓝色。
• 染色剂 — 在显微镜下追踪淋巴液的运动，确定细胞壁或细胞核
• 培养基组分 — 在琼脂凝胶培养基中，用于蜡样芽孢杆菌计数；作为细菌生长组分和检测底物，例如胱氨酸/乳糖/电解质缺乏
• BTB纸片法 — 应急测定全血胆碱酯酶活力，用于有机磷中毒的判断。
方法1：在搅拌下，在百里酚蓝的冰醋酸悬浮液中通入溴，反应在50℃下进行，可制得溴百里酚蓝。
方法2：在搅拌下将过量的溴、冰醋酸溶液慢慢加到百里酚蓝的水醋酸溶液中，于40～50℃下反应4h反应结束后，冷却至20℃以下，过滤，干燥即得无色溴百里酚蓝。
A first characterization and comparison is done by developing an easy and direct measurement method based on a pH indicator system using Bromothymol Blue (BTB) as the indicator and potassium phosphate as the buffer. A pH-shift assay is developed on the basis of BTB as the pH indicator and potassium phosphate as the buffer component. Three pH indicators are tested for the direct determination of 2- 2-keto-L-gulonic acid (2-KLG) production on a plate. The results show that Bromothymol Blue is superior to the other two indicators in terms of the obvious color change and a suitable pH range (blue to yellow at pH 6.5-7.5). Upon the addition of a Bromothymol Blue solution (0.1%, w/v) to an agar plate, zones surrounding colonies of K. vulgare 07 mutants change their color from blue to yellow because K. vulgare 07 mutants release 2-KLG on agar plates, thereby acidifying surrounding areas around colonies.
知名试剂公司产品信息
Bromothymol Blue, indicator, pure(76-59-5)
Bromothymol Blue, ACS(76-59-5)