溴百里酚蓝 [溴麝香草酚蓝]，Bromothymol Blue [BTB]；ACS reagent, Dye content 95%

图片 溴百里酚蓝 [溴麝香草酚蓝]，Bromothymol Blue [BTB]；ACS reagent, Dye content 95%
别名：溴百里酚兰；溴麝香草酚兰；3′,3″-二溴百里酚磺酞；溴百里香酚蓝；3′,3″-Dibromothymolsulfonphthalein

Empirical Formula (Hill Notation): C27H28Br2O5S CAS号: 76-59-5 分子量: 624.38 Beilstein: 373934 EC 号: 200-971-2 MDL编号: MFCD00005872 PubChem化学物质编号: 24847171
制造商品牌: 西格玛 Sigma-Aldrich
货号（SKU）: 114413
CAS号: 76-59-5
MDL号: MFCD00005872
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¥302.73

说明

溴百里酚蓝是酸性水溶液中的磺化羟基醌。在碱性溶液中，该染料以中等大小的二价阴离子存在。它也被称为溴百里酚蓝和二溴甲基磺酰酞。

一般描述

Bromothymol Blue is a sulfonated hydroxyquinone in acidic aqueous solutions. In alkaline solutions, this dye is present as a moderately sized dianion. It is also known as bromthymol blue and dibromothymolsulfonphthalein.
 

应用

Bromothymol blue dye serves as a pH indicator because of the precise color transition at neutrality. Other applications include:
  • as a vital stain to trace the movement of fluids from the lymph and to define cell walls or nuclei under the microscope
  • for the demonstration of fungal hyphae within plant roots
  • in the assessment of the soluble acidity within single rice grains
  • use in an agar gel medium for enumeration of Bacillus cereus
  • as a component of several bacterial growth and detection substrates such as cystine lactose electrolyte deficient (CLED/BROLACIN); polymyxin pyruvate egg yolk mannitol bromothymol blue (PEMBA) and MacConkey agar.

 

属性

等级

ACS reagent

质量水平

200

形式

powder

组成

Dye content, 95%

visual transition interval

6.0-7.6, yellow to blue(passes test)

mp

200-202 °C (lit.)

λmax

420 nm

ε (extinction coefficient)

≥17000 at 419-425 nm in methanol
≥8000 at 326-332 nm in methanol
≥9000 at 279-285 nm in methanol

SMILES string

CC(C)c1cc(c(C)c(Br)c1O)C2(OS(=O)(=O)c3ccccc23)c4cc(C(C)C)c(O)c(Br)c4C

InChI

1S/C27H28Br2O5S/c1-13(2)17-11-20(15(5)23(28)25(17)30)27(19-9-7-8-10-22(19)35(32,33)34-27)21-12-18(14(3)4)26(31)24(29)16(21)6/h7-14,30-31H,1-6H3

InChI key

NUHCTOLBWMJMLX-UHFFFAOYSA-N

 

安全信息

储存分类代码

11 - Combustible Solids

WGK

WGK 3

个人防护装备

Eyeshields, Gloves, type N95 (US)

商品规格
属性名称属性值
储存温度 Storage temp.常温阴凉避光
全球实时库存 Availability √美国St. Louis ≥ 20 | 欧洲Eur. ≥ 16 | 東京Tokyo ≥ 5 | 香港与北京 ≥ 20
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