- 商品介绍
- 规格参数
- 包装参数
General description
Tetrabromophenol blue is an acid-sensitive triphenylmethane dye widely employed as an industrial dye for food, drugs, cosmetics, and laboratory indicators. It belongs to the group of sulfonephthalein acid-base indicators. It is commercially available as a sodium salt.
Biochem/physiol Actions
Tetrabromophenol Blue sodium salt has two tautomeric forms that are differently coloured: blue at pH > 4.6 and yellow at pH < 3, and is thus employed as a pH indicator.
| Quality Level | 200 |
| assay | ≥84.5% (HPLC) |
| form | powder |
| composition | Dye content, 85% |
| technique(s) | titration: suitable |
| color | brown to dark brown |
| λmax | 610 nm |
| ε (extinction coefficient) | ≥12000 at 298-304 nm in H2O at 0.005 g/L,≥55000 at 607-613 nm in H2O at 0.005 g/L,≥59000 at 222-228 nm in H2O at 0.005 g/L |
| application(s) | diagnostic assay manufacturing hematology histology |
| storage temp. | room temp |
| SMILES string | [Na+].Oc1c(Br)cc(cc1Br)C(=C2\C=C(Br)C(=O)C(Br)=C2)\c3c(Br)c(Br)c(Br)c(Br)c3S([O-])(=O)=O |
| InChI | 1S/C19H6Br8O5S.Na/c20-7-1-5(2-8(21)17(7)28)11(6-3-9(22)18(29)10(23)4-6)12-13(24)14(25)15(26)16(27)19(12)33(30,31)32;/h1-4,28H,(H,30,31,32);/q;+1/p-1 |
| InChI key | GFMOPDHPAXHAQX-UHFFFAOYSA-M |
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¥ 1779.22
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¥ 8293.41
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