860891

Bromocresol Purple sodium salt

indicator grade, Dye content 90 %

• Sinónimos: 5′,5″-Dibromo-o-cresolsulfonphthalein sodium salt
• Fórmula empírica (notación de Hill): C₂₁H₁₅Br₂NaO₅S
• Número de CAS: 62625-30-3
• Peso molecular: 562.20
• Número CE: 263-655-3
• Número MDL: MFCD00148896
• Código UNSPSC: 12171500
• ID de la sustancia en PubChem: 24888522
• NACRES: NA.47

Propiedades

• grado: indicator grade
• Nivel de calidad: 200
• Formulario: powder
• composición: Dye content, 90%
• técnicas: titration: suitable
• color: brown to very dark brown, to Very Dark Red
• visual transition interval: 5.2-6.8, yellow to purple
• mp: 255 °C (dec.) (lit.)
• λmáx.: 379 nm; 585 nm (2nd)
• ε (coeficiente de extinción): ≥47000 at 587-591 nm in 0.1 M NaOH; ≥7000 at 375-381 nm in 0.1 M NaOH
• aplicaciones: diagnostic assay manufacturing; hematology; histology
• temp. de almacenamiento: room temp
• cadena SMILES: [Na+].Cc1cc(cc(Br)c1O)C2(OS(=O)(=O)c3ccccc23)c4cc(C)c([O-])c(Br)c4
• InChI: 1S/C21H16Br2O5S.Na/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;/q;+1/p-1
• Clave InChI: WNOIORUCCYNQPE-UHFFFAOYSA-M

Descripción

Descripción general

Bromocresol Purple, also known as dibromo-o-cresolsulfonphthalein, is an acidic dye and belongs to the phthalein and sulphonphthalein dyes group. The dye color changes from yellow to violet at pH 5.2-6.8. The monosodium salt of the dye is 8% soluble in water and 2% in ethanol. Bromocresol Purple, under alkaline conditions, forms a hydrophilic, moderately sized dianion that is purple.

Aplicación

Bromocresol Purple is widely used as a vital stain to trace fluid diffusion in the lymphatic system. In addition, the dye is suitable to differentiate dead or live yeast cells. As a pH indicator, Bromocresol Purple is used in microbial culture media, both broth, and agar. In analytical experiments, e.g., to stain carbonic anhydrase isoenzyme on cellulose acetate electrophoresis membranes, bromocresol purple is used.

Información de seguridad

• Pictogramas: GHS07
• Palabra de señalización: Warning
• Frases de peligro: H315,H319,H335
• Consejos de prudencia: P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338
• Clasificaciones de peligro: Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
• Órganos de actuación: Respiratory system
• Código de clase de almacenamiento: 11 - Combustible Solids
• Clase de riesgo para el agua (WGK): WGK 3
• Punto de inflamabilidad (°F): Not applicable
• Punto de inflamabilidad (°C): Not applicable
• Equipo de protección personal: dust mask type N95 (US), Eyeshields, Gloves