Bromocresol Blue

pH 3.8 (yellow) to pH 5.4 (blue). Total Alkalinity indicator.

Synonym(s): 3',3'',5',5''-Tetrabromo- m -cresolsulfonephthalein; Bromocresol Blue Empirical Formula: C₂₁H₁₄Br₄O₅S Linear Formula: C₂₁H₁₄Br₄O₅S Formula Weight: 698.01 MDL Number: MFCD00005874 …

Bromocresol purple binds quantitatively with human serum albumin forming a stable complex with absorbance maximum at 600 nm. The intensity of the color produced is directly proportional to the albumin concentration in the sample. Bromocresol Purple is used as a pH indicator (5.2-6.8 : yellow to…

… EINECS: 200-972-8 Formula: C₂₁H₁₄Br₄O₅S Formula Weight: 698.02 Melting Point: ca 225° dec.. Notes Transition interval: pH 3.8 (yellow) to pH 5.4 (blue) Risk & Safety TSCA: Yes RTECS: SJ7456000

pH 4.6 (pink) to pH 5.2 (blue-green). APHA for Alkalinity.

…cycloheximide (8) or Legionella Selective Supplement IV (MWY) (FD040) containing glycine, polymyxin B, anisomycin, vancomycin, bromothymol blue and bromocresol purple (6) are often used. Wear gown, mask and gloves while handling Legionella cultures. Work in a safety hood. Directions: Suspend 20…

pH 3.8 (yellow) to pH 5.4 (blue). Total Alkalinity indicator.

…Lactose is the fermentable carbohydrate. Microorganism fermenting lactose produces yellow colonies due to reaction with bromothymol blue and bromocresol purple indicators. These indicators also act as inhibitors of non-coliform microbes. Sodium heptadecyl sulphate (Tergitol 7) and polyoxyethylene…

…Water is also utilized as a base for carbohydrate fermentation studies with the addition of sugar and indicators such as bromocresol purple, phenol red or bromothymol blue. Peptone Water is recommended (1, 2, 3) for studying the ability of an organism to ferment a specific carbohydrate which…

…Water is also utilized as a base for carbohydrate fermentation studies with the addition of sugar and indicators such as bromocresol purple, phenol red or bromothymol blue. Peptone Water with Phenol Red is recommended (1, 2, 3) for studying the ability of an organism to ferment a specific…

…good indicator of acidity, alkalinity and its oxidation-reduction potential is useful in milk media with lower toxicity to microorganisms than bromocresol purple (4). Addition of 1% w/v dextrose and/or 5% w/v yeast extract to Litmus Milk accelerates the growth of some organisms, which cannot grow in…