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| | Bromocresol green Basic information |
| Product Name: | Bromocresol green | | Synonyms: | BROMOCRESOL GREEN SULTONE FORM;BROMOCRESOL GREEN ETHANOL (50);BROMOCRESOL GREEN INDICATOR;3',3'',5',5''-TETRABROMO-3-CRESOLSULFONEPHTHALEIN;3',3'',5',5''-TETRABROMO-M-CRESOLSULFONEPHTHALEIN;3',3'',5',5''-TETRABROMO-M-CRESOLSULFONPHTHALEIN;3',3',5',5'-TETRABROMO-M-CRESOLSULFONPHTHALEIN;3,3',5,5'-TETRABROMO-M-CRESOLSULFONPHTHALEIN | | CAS: | 76-60-8 | | MF: | C21H14Br4O5S | | MW: | 698.01 | | EINECS: | 200-972-8 | | Product Categories: | Sulfonephthalein;Flavones, Flavonoids, FoodstuffsDerivatization Reagents TLC;Organic Acids, Carboxylic AcidsDerivatization Reagents;Derivatization Reagents TLC;TLC Reagents, A-C;TLC ReagentsDerivatization Reagents TLC;TLC Visualization Reagents (alphabetic sort);B;Stains and Dyes;Stains&Dyes, A to;Organics;TLC Stains;Analytical Chemistry;Indicator (pH);pH Indicators;TLC Visualization Reagents (by application);AR;76-60-8 | | Mol File: | 76-60-8.mol |  |
| | Bromocresol green Chemical Properties |
| Melting point | 225 °C (dec.) (lit.) | | density | 0.79 g/mL at 20 °C | | Fp | 12 °C | | storage temp. | no restrictions. | | solubility | Solubility Sparingly soluble in water; soluble in ethanol, ether, ethyl acetate | | Boiling point | 626.0±55.0 °C(Predicted) | | form | Powder/Solid | | pka | 4.7(at 25℃) | | color | Pale orange | | PH | 3.8～5.4 | | PH Range | 3.8(YELLOW)-5.4(BLUE) | | Water Solubility | slightly soluble | | λmax | 423nm, 444nm, 617nm | | Merck | 14,1386 | | BRN | 372527 | | Stability: | Stable. Incompatible with strong oxidizing agents. | | Major Application | Sol-gel matrix, fuel cells, sensors, display device, inks, paints, one-steptester for ammonia, cosmet-tester for ammonia, packaging system, textiles, cleansing products, detergents, cosmetics, diapers, identifying fresh and stale rice, monitoring fish spoilage, detecting carbohydrates, lacting acid bacteria, treating neoplasms, cancer, vaginal infection test method, drugs, dental materials | | LogP | 7.800 (est) | | CAS DataBase Reference | 76-60-8(CAS DataBase Reference) | | EPA Substance Registry System | Bromcresol green (76-60-8) |
| | Bromocresol green Usage And Synthesis |
| Chemical Properties | tan to yellow crystals | | Uses | Bromocresol Green (BCG) is a pH sensitive triphenylmethane dye useful in a variety of colorimetric detection technologies. BCG is used as a tracking dye for DNA agarose gel electrophoresis, in protein determinations and in charge-transfer complexation processes. In TLC BCG is used for visualisation of the compounds with functional groups whose pKa is below 5.0. | | Uses | As indicator, pH 3.8 yellow; pH 5.4 blue-green. | | Uses | Bromocresol Green is a pH sensitive indicator used in the growth medium for microorganisms and titrations. It is useful in various colorimetric detection studies and as an actively tracking dye for DNA agarose gel electrophoresis. It acts as an inhibitor of prostaglandin E2 transport protein. It is also used in TLC for visualizing compounds containing functional groups having pKa less than 5. | | Definition | ChEBI: Bromocresolgreen is a member of benzofurans. | | Hazard | Moderately toxic. | | Purification Methods | Crystallise the dye from glacial acetic acid or dissolve it in aqueous 5% NaHCO3 solution and precipitate it from the hot solution by dropwise addition of aqueous HCl. Repeat this until the UV/VIS-extinction did not increase 423nm. It is an indicator: at pH 3.81 at max (yellow) and pH 5.4 (blue-green). [Beilstein 19/3 V 460.] |
| | Bromocresol green Preparation Products And Raw materials |
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