Bromophenolblue , BR , 62625-28-9

Synonym(s):
3′,3′′,5′,5′′-Tetrabromophenolsulfonephthalein;3′,3′′,5′,5′′-Tetrabromophenolsulfophthalein sodium salt;Bromophenol Blue sodium salt

CAS NO.：62625-28-9

Empirical Formula: C19H10Br4O5S

Molecular Weight: 669.96

MDL number: MFCD00005875

EINECS: 263-653-2

PRODUCT Properties

• Melting point: >300°C
• Density: 0.954 g/mL at 20 °C
• storage temp.: Store at RT.
• solubility: Solubility Soluble in water, ethanol
• pka: 4.0, 3.85, 3.6(at 25℃)
• form: Powder/Solid
• color: Dark green
• PH Range: Yellow (3.0) to blue (4.6)
• Water Solubility: soluble
• λmax: 589nm, 383nm
• Stability: Stable. Incompatible with strong oxidizing agents.
• Major Application: Recording materials
• EPA Substance Registry System: Bromophenol blue sodium salt (62625-28-9)

Description and Uses

Bromophenol blue sodium is a pH indicator. It changes from yellow at pH 3.0 to blue at pH 4.6. Bromophenol blue sodium is also used as a tracking dye to monitor the process of agarose gel electrophoresis and polyacrylamide gel electrophoresis[1][2].

Safety

• Symbol(GHS): GHS07
• Signal word: Warning
• Hazard statements: H315-H319-H335
• Precautionary statements: P261-P271-P280
• Hazard Codes: T,Xi
• Risk Statements: 61-20/21-36-36/37/38
• Safety Statements: 53-45-37/39-26
• RIDADR: UN 2265 3/PG 3
• WGK Germany: 3
• RTECS: SJ7453000
• HS Code: 29349990