Bromocresol purple , IND , 115-40-2

Synonym(s):
5′,5′′-Dibromo-o-cresolsulfonephthalein sodium salt;5′,5′′-Dibromo-o-cresolsulfonphthalein;5,5′-Dibromo-o-cresolsulfonphthalein;Bromcresol purple sultone form;Bromocresol purple

CAS NO.：115-40-2

Empirical Formula: C21H16Br2O5S

Molecular Weight: 540.22

MDL number: MFCD00011681

EINECS: 204-087-8

PRODUCT Properties

• Melting point: 240 °C (dec.) (lit.)
• bulk density: 515kg/m3
• Density: 1.6509 (estimate)
• Flash point: 36 °C
• storage temp.: Store at +5°C to +30°C.
• solubility: ethanol: soluble1mg/mL
• form: Solid
• pka: 6.21, 6.3, 6.4(at 25℃)
• Boiling point: 590.2±50.0 °C(Predicted)
• color: Purplish-brown
• PH Range: 5.2(yellow)-6.8(purple)
• PH: pH : 5.2～6.8
• Water Solubility: practically insoluble
• λmax: 419nm, 433nm, 591nm
• ε(extinction coefficient): ≥22000 at 418-424nm in methanol
• Merck: 14,1387
• BRN: 359618
• Stability: Stable. Incompatible with strong oxidizing agents.
• Major Application: Waveguides, fuel cells, sensors, sol-gel technology, display device, falsification-proof security paper, paints, detergents, identifying fresh and stale rice, detecting lactic acid bacteria, dental materials, vaginal infection test method
• InChI: 1S/C21H16Br2O5S/c1-11-7-13(9-16(22)19(11)24)21(14-8-12(2)20(25)17(23)10-14)15-5-3-4-6-18(15)29(26,27)28-21/h3-10,24-25H,1-2H3
• InChIKey: ABIUHPWEYMSGSR-UHFFFAOYSA-N
• SMILES: Cc1cc(cc(Br)c1O)C2(OS(=O)(=O)c3ccccc23)c4cc(C)c(O)c(Br)c4
• CAS DataBase Reference: 115-40-2(CAS DataBase Reference)
• EPA Substance Registry System: Bromcresol Purple (115-40-2)

Description and Uses

Bromocresol purple has been used as a pH indicator in the yeast culture media. It has been used as a pH indicator in the culture media of Geobacillus stearothermophilus subsp. Calidolactis.

Safety

• Symbol(GHS): GHS07
• Signal word: Warning
• Hazard statements: H315-H319-H335
• Precautionary statements: P261-P280a-P304+P340-P305+P351+P338-P405-P501a-P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313
• PPE: dust mask type N95 (US), Eyeshields, Gloves
• Hazard Codes: Xi,Xn
• Risk Statements: 36/37/38-10-20/21/22
• Safety Statements: 26-36-37/39-16
• RIDADR: UN 1993 3/PG 3
• WGK Germany: 3
• TSCA: TSCA listed
• HS Code: 29349990
• Storage Class: 11 - Combustible Solids
• Hazardous Substances Data: 115-40-2(Hazardous Substances Data)