B1256

Bromkresolgrün

≥98% purity, crystalline

• Synonym(e): 3′,3″,5′,5″-Tetrabrom-m-kresolsulfonphthalein Natriumsalz
• Empirische Formel (Hill-System): C₂₁H₁₃Br₄NaO₅S
• CAS-Nummer: 62625-32-5
• Molekulargewicht: 720.00
• NACRES: NA.47
• PubChem Substance ID: 24891573
• UNSPSC Code: 12171500
• EC Number: 263-657-4
• MDL number: MFCD00148898

Eigenschaften

• Produktname: Bromkresolgrün, crystalline
• Quality Segment: 200
• agency: suitable for SM 2310, suitable for SM 2320
• form: crystalline
• visual transition interval: 3.8-5.4, yellow to blue
• mp: 230 °C (dec.) (lit.)
• solubility: H₂O: 1 mg/mL
• λmax: 616 nm in H₂O
• application(s): diagnostic assay manufacturing; hematology; histology
• storage temp.: room temp
• SMILES string: [Na+].Cc1c(Br)c(O)c(Br)cc1\C(=C2\C=C(Br)C(=O)C(Br)=C2C)c3ccccc3S([O-])(=O)=O
• 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
• InChI key: HEFSGAHJDGZCHA-UHFFFAOYSA-M

Beschreibung

Application

Bromocresol Green sodium salt has been used as a pH indicator for glutamate decarboxylase activity assay in Listeria monocytogenes strains.

Biochem/physiol Actions

Bromocresol Green is mainly used for measuring serum albumin. In presence of acidic conditions, bromocresol green interacts with albumin, thereby resulting in an increase in absorbance at 630nm. The change in absorbance is linked with the concentration of albumin. Bromocresol Green is also a pH indicator, changing from yellow (pH 4.0) to blue color (5.4).

Sicherheitshinweise

• Lagerklasse: 11 - Combustible Solids
• wgk: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Eyeshields, Gloves, type N95 (US)