318701

Bromocresol Green sodium salt solution

0.04 wt. % in H₂O

• Synonym(s): 3′,3′′,5′,5′′-Tetrabromo-m-cresolsulfonephthalein sodium salt
• Empirical Formula (Hill Notation): C₂₁H₁₃Br₄NaO₅S
• CAS Number: 62625-32-5
• Molecular Weight: 720.00
• MDL number: MFCD00148898
• UNSPSC Code: 12171500
• PubChem Substance ID: 24859141
• NACRES: NA.47

Properties

• form: liquid
• Quality Level: 100
• concentration: 0.04 wt. % in H₂O
• visual transition interval: 3.8-5.4, yellow to blue
• density: 0.981 g/mL at 25 °C
• λmax: 612 nm
• ε (extinction coefficient): ≥10000 at 306-312 nm; ≥8000 at 397-403 nm
• application(s): diagnostic assay manufacturing; hematology; histology
• storage temp.: room temp
• SMILES string: [Na+].Cc1c(Br)c(O)c(Br)cc1C2(OS(=O)(=O)c3ccccc23)c4cc(Br)c([O-])c(Br)c4C
• InChI: 1S/C21H14Br4O5S.Na/c1-9-12(7-14(22)19(26)17(9)24)21(13-8-15(23)20(27)18(25)10(13)2)11-5-3-4-6-16(11)31(28,29)30-21;/h3-8,26-27H,1-2H3;/q;+1/p-1
• InChI key: HEFSGAHJDGZCHA-UHFFFAOYSA-M

Description

Biochem/physiol Actions

Bromocresol green is a sulfonephthalein dye.[1] It is mainly used for measuring serum albumin. In acidic conditions, bromocresol green interacts with albumin, thereby resulting in an increase in absorbance at 630nm. The change in absorbance is linked with the concentration of albumin.[2] Bromocresol Green is also a pH indicator, changing from yellow (pH 3.8) to blue color (5.4).[3] It is widely used as a colloidal pigment.[1]

Safety Information

• Storage Class: 10 - Combustible liquids
• flash_point_f: Not applicable
• flash_point_c: Not applicable