76-59-5
76-59-5 結(jié)構(gòu)式
基本信息
溴麝香草酚藍
別名:溴麝香草酚藍
3,3′一二溴麝香草酚磺酰酞
溴百里香酚蘭
溴百里香酚藍
3,3ˊ-二溴麝香草酚磺酞
溴百里藍(0.1%INCA.50%乙醇)(滴定用)
溴百里藍指示劑
溴草酚藍
溴麝香藍
溴百里酚藍 /別名:溴麝香草酚藍
3,3''-二溴麝香草酚磺酜酞
3',3"-二溴百里香酚藍
3',3"-二溴麝香草酚磺酰酞
溴百里酚藍, 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
物理化學(xué)性質(zhì)
安全數(shù)據(jù)
常見問題列表
溴百里酚藍呈無色或淺玫瑰結(jié)晶性粉末狀，易溶于醇、稀堿溶液和氨水中，微溶于水，不溶于石油醚。其遇酸性時為黃色，堿性時為藍色。
溴麝香草酚藍是一種酸堿指示劑，變色范圍pH6.0(黃)～7.6(藍)。普通水是中性，pH也就是7左右，差不多呈淺綠。
溴百里酚藍是弱酸和弱堿的pH指示劑，在分析化學(xué)中用作酸堿指示劑和色譜分析試劑；也可用作染料和代謝產(chǎn)物。
? pH指示劑 — 在近中性時具有精確的顏色轉(zhuǎn)換，酸性時為黃色，堿性時為藍色。
? 染色劑 — 在顯微鏡下追蹤淋巴液的運動，確定細胞壁或細胞核
? 培養(yǎng)基組分 — 在瓊脂凝膠培養(yǎng)基中，用于蠟樣芽孢桿菌計數(shù)；作為細菌生長組分和檢測底物，例如胱氨酸/乳糖/電解質(zhì)缺乏
? BTB紙片法 — 應(yīng)急測定全血膽堿酯酶活力，用于有機磷中毒的判斷。
方法1：在攪拌下，在百里酚藍的冰醋酸懸浮液中通入溴，反應(yīng)在50℃下進行，可制得溴百里酚藍。
方法2：在攪拌下將過量的溴、冰醋酸溶液慢慢加到百里酚藍的水醋酸溶液中，于40～50℃下反應(yīng)4h反應(yīng)結(jié)束后，冷卻至20℃以下，過濾，干燥即得無色溴百里酚藍。
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.
知名試劑公司產(chǎn)品信息
Bromothymol Blue, indicator, pure(76-59-5)
Bromothymol Blue, ACS(76-59-5)