Bromothymol blue
IUPAC: 2-bromo-4-[3-(3-bromo-4-hydroxy-2-methyl-5-propan-2-ylphenyl)-1,1-dioxo-2,1lambda6-benzoxathiol-3-yl]-3-methyl-6-propan-2-ylphenol
| Formula / Notation | C27H28Br2O5S |
|---|---|
| CAS Number | 76-59-5 |
| Molecular Weight | 624.4 |
| Appearance | Odorless white to cream-colored solid; Available as pure compound, monosodium salt, and dilute solutions; [CHEMINFO] |
| Also Known As | 2-bromo-4-[3-(3-bromo-4-hydroxy-2-methyl-5-propan-2-ylphenyl)-1,1-dioxo-2,1lambda6-benzoxathiol-3-yl]-3-methyl-6-propan-2-ylphenol; 76-59-5; BROMTHYMOL BLUE; Dibromothymolsulfophthalein; Dibromothymolsulfonphthalein; VGU4LM0H96; DTXSID3058799; NSC7819; NSC-7819; CHEBI:86155 |
| Category | Indicators |
What is Bromothymol blue?
Bromothymol blue is a member of the class of 2,1-benzoxathioles that is 2,1-benzoxathiole 1,1-dioxide in which both of the hydrogens at position 3 have been substituted by 3-bromo-4-hydroxy-5-isopropyl-2-methylphenyl groups. It has a role as a dye, an acid-base indicator and a two-colour indicator. It is a polyphenol, an organobromine compound, a 2,1-benzoxathiole, a sultone and an arenesulfonate ester.
Formula & Notation
IUPAC Name: 2-bromo-4-[3-(3-bromo-4-hydroxy-2-methyl-5-propan-2-ylphenyl)-1,1-dioxo-2,1lambda6-benzoxathiol-3-yl]-3-methyl-6-propan-2-ylphenol
Other Names / Synonyms: 2-bromo-4-[3-(3-bromo-4-hydroxy-2-methyl-5-propan-2-ylphenyl)-1,1-dioxo-2,1lambda6-benzoxathiol-3-yl]-3-methyl-6-propan-2-ylphenol; 76-59-5; BROMTHYMOL BLUE; Dibromothymolsulfophthalein; Dibromothymolsulfonphthalein; VGU4LM0H96; DTXSID3058799; NSC7819; NSC-7819; CHEBI:86155
Properties & Characteristics
Physical Data
| Property | Value |
|---|---|
| Molecular Weight | 624.4 |
| Appearance | Odorless white to cream-colored solid; Available as pure compound, monosodium salt, and dilute solutions; [CHEMINFO] |
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
Bromothymol blue is a member of the class of 2,1-benzoxathioles that is 2,1-benzoxathiole 1,1-dioxide in which both of the hydrogens at position 3 have been substituted by 3-bromo-4-hydroxy-5-isopropyl-2-methylphenyl groups. It has a role as a dye, an acid-base indicator and a two-colour indicator. It is a polyphenol, an organobromine compound, a 2,1-benzoxathiole, a sultone and an arenesulfonate ester.
Used as a pH indicator in acid-base titrations, analytical chemistry, and chemical education demonstrations.
May be irritant or toxic in concentrated form. Handle with care. Consult SDS before use.
The formula or notation for Bromothymol blue is: C27H28Br2O5S