Bromocresol green sodium salt , ACSreagent,90% , 62625-32-5

Synonym(s):
3′,3′′,5′,5′′-Tetrabromo-m-cresolsulfonephthalein sodium salt

CAS NO.：62625-32-5

Empirical Formula: C21H13Br4NaO5S

Molecular Weight: 720

MDL number: MFCD00148898

EINECS: 263-657-4

PRODUCT Properties

• Melting point: 230 °C (dec.)(lit.)
• Density: 0.981 g/mL at 25 °C
• storage temp.: Store at +15°C to +25°C.
• solubility: H2O: soluble1mg/mL
• form: Solid
• pka: 4.7(at 25℃)
• color: Green
• PH Range: 4(Yellow)-5.6(Blue)
• Odor: Characteristic odour
• Water Solubility: Soluble in water and ethanol.
• ε(extinction coefficient): ≥10000 at 306-312nm; ≥8000 at 397-403nm
• λmax: 617nm, 400nm
• Stability: Stable. Incompatible with strong oxidizing agents.
• Major Application: Colloidal pigments
• 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
• InChIKey: HEFSGAHJDGZCHA-UHFFFAOYSA-M
• SMILES: [Na+].Cc1c(Br)c(O)c(Br)cc1\C(=C2\C=C(Br)C(=O)C(Br)=C2C)c3ccccc3S([O-])(=O)=O
• CAS DataBase Reference: 62625-32-5(CAS DataBase Reference)
• EPA Substance Registry System: Phenol, 4,4'-(2,2-dioxido-3H-1,2-benzoxathiol-3-ylidene)bis[2,6-dibromo-3-methyl-, monosodium salt (62625-32-5)

Description and Uses

Bromocresol Green sodium salt is used as a pH indicator. It is a pH sensitive triphenylmethane dye useful in various colorimetric detection studies and as an activity tracking dye for DNA agarose gel electrophoresis. It is also used in TLC (thin-layer chromatography) for visualizing compounds containing functional groups having pKa less than 5.

Safety

• Symbol(GHS): GHS07
• Signal word: Warning
• Hazard statements: H302-H315-H319-H335
• Precautionary statements: P261-P301+P312-P302+P352-P304+P340-P305+P351+P338
• PPE: Eyeshields, Gloves, type N95 (US)
• Hazard Codes: Xi,Xn
• Risk Statements: 36/37/38-20/21/22
• Safety Statements: 22-24/25-36-26
• WGK Germany: 3
• TSCA: TSCA listed
• HS Code: 2934 99 90
• Storage Class: 11 - Combustible Solids