Bromophenol Blue, Cas # 115-39-9

Bromophenol Blue, Cas # 115-39-9. A versatile laboratory dye supplied as a fine blue crystalline powder (Size: 10g).

Manufacturer: MOLEQULE-ON, New Zealand

• Key features: Acts as an acid–base indicator with an approximate color transition near pH 3.0–4.6 and provides a distinct blue tracking band for electrophoresis and loading dyes.
• Common applications: Electrophoresis tracking dye for agarose and polyacrylamide gels (component of loading buffers), pH indicator in titrations and buffer checks, visual marker in biochemical assays and quality control.
• Typical handling & specifications: Supplied in a 10 g pack; typically used as a 0.05% (w/v) working solution in loading buffers; soluble in organic solvents (e.g., ethanol, DMSO) and sparingly soluble in water; store sealed, protected from light and moisture.
• Safety & waste: Use appropriate PPE (gloves, eye protection), avoid inhalation and skin contact, and follow the manufacturer's SDS and local regulations for disposal.

This description enhances the original product entry by summarizing practical specifications, typical laboratory uses, handling guidance, and manufacturer information to aid selection and safe use.