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Bromocresol green (BCG) is a dye of the triphenylmethane family (triarylmethane dyes). It belongs to a class of dyes called sulfonephthaleins. [4] It is used as a pH indicator in applications such as growth mediums for microorganisms and titrations. In clinical practise, it is commonly used as a diagnostic technique.
Absorption spectra of bromocresol green at different stages of protonation. An indicator may be used to obtain quite precise measurements of pH by measuring absorbance quantitatively at two or more wavelengths. The principle can be illustrated by taking the indicator to be a simple acid, HA, which dissociates into H + and A −. HA ⇌ H + + A −
The general carbon skeleton of bromothymol blue is common to many indicators including chlorophenol red, thymol blue, and bromocresol green. [ 2 ] The presence of one moderate electron-withdrawing group ( bromine atom) and two moderate donating groups (alkyl substituents) are responsible for bromothymol blue's active indication range from a pH ...
Brilliant green: Malachite green G Zeylonka Basic green 1 42040 triarylmethane 633-03-4: Bromsulfthalein: BSP triarylmethane 71-67-0: Bromocresol green: BCG triarylmethane 76-60-8: Bromocresol purple: BCP triarylmethane 115-40-2: Bromodeoxyuridine: BDU 59-14-3: Bromophenol blue: BPB Albutest triarylmethane 115-39-9: Bromopyrogallol red ...
Skeletal formula: Ball-and-stick model: General Common name o-cresol: m-cresol: p-cresol: Preferred IUPAC name: 2-methylphenol 3-methylphenol 4-methylphenol Systematic name: 2-methylbenzenol 3-methylbenzenol 4-methylbenzenol Other names ortho-cresol 2-hydroxytoluene meta-cresol 3-hydroxytoluene para-cresol 4-hydroxytoluene Molecular formula: C ...
Jayson Tatum scored 22 points, Kristaps Porzingis had 18 and the Boston Celtics handed the Golden State Warriors their most lopsided home loss in 40 years with a 125-85 victory on Monday. The ...
Broccoli is bred for its green florets, while cauliflower is bred for its compact white florets. Related: How To Grow And Care For Broccoli . The Flavor of Broccoli vs. Broccolini.
Bromocresol purple (BCP) or 5′,5″-dibromo-o-cresolsulfophthalein, is a dye of the triphenylmethane family (triarylmethane dyes) and a pH indicator. It is colored yellow below pH 5.2, and violet above pH 6.8. In its cyclic sulfonate ester form, it has a pK a value of 6.3, and is usually prepared as a 0.04% aqueous solution. [1]