Hotline (061) 6641391
Product Name
Bromothymol Blue, ACS reagent, Dye content 95 %
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
SMILES string
CC(C)c1cc(c(C)c(Br)c1O)C2(OS(=O)(=O)c3ccccc23)c4cc(C(C)C)c(O)c(Br)c4C
grade
ACS reagent
form
powder
composition
Dye content, 95%
color
pink-purple
visual transition interval
6.0-7.6, yellow to blue(passes test)
mp
200-202 °C ((392 - 396 °F) - lit.)
200-202 °C (lit.)
Bromothymol Blue, also known as, dibromothymolsulfonphthalein 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. It is a pH-sensitive dye that changes color from yellow to blue.
English
