| IUPAC name | 4,4′-(1,1-dioxido-3H-2,1-benzoxathiole-3,3-diyl)bis(2,6-dibromophenol) |
| Synonyms | 3′,3”,5′,5”-tetrabromophenolsulfonephthalein, BPB, Albutest, Tetrabromphenol Blue |
| Chemical formula | C19H10Br4O5S |
| Molar mass | 669.96 g/mol |
| Molecular weight | 669.96 |
| Odor | Odorless |
| Density | 2.2 g/mL |
| Melting point | 273 °C (523 °F; 546 K) |
| Boiling point | 279 °C (534 °F; 552 K) |
| Solubility in methanol | 10 mg/mL |
| pK | 3.95 |
| Approximate pH range for color change | 3.0-4.6 |
| Color of acid form | yellow |
| Color of base form | purple |
| CAS Number | 115-39-9 |
| ChEBI | CHEBI:59424 |
| ChEMBL | ChEMBL2103765 |
| ChemSpider | 7973 |
| ECHA InfoCard | 100.003.715 |
| PubChem CID | 8272 |
| PubChem SID | 24891504 |
| Beilstein/REAXYS Number | 61698 |
| EC Number | 204-086-2 |
| SMILES string | Oc1c(Br)cc(cc1Br)C2(OS(=O)(=O)c3ccccc23)c4cc(Br)c(O)c(Br)c4 |
| InChI | 1S/C19H10Br4O5S/c20-12-5-9(6-13(21)17(12)24)19(10-7-14(22)18(25)15(23)8-10)11-3-1-2-4-16(11)29(26,27)28-19/h1-8,24-25H |
| InChI key | UDSAIICHUKSCKT-UHFFFAOYSA-N |
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