860891

Bromocresol Purple sodium salt

indicator grade, Dye content 90 %

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

Propriedades

• grau: indicator grade
• Nível de qualidade: 200
• Formulário: powder
• composição: Dye content, 90%
• técnica(s): titration: suitable
• cor: brown to very dark brown, to Very Dark Red
• visual transition interval: 5.2-6.8, yellow to purple
• pf: 255 °C (dec.) (lit.)
• λmax: 379 nm; 585 nm (2nd)
• ε (coeficiente de extinção): ≥47000 at 587-591 nm in 0.1 M NaOH; ≥7000 at 375-381 nm in 0.1 M NaOH
• aplicação(ões): diagnostic assay manufacturing; hematology; histology
• temperatura de armazenamento: room temp
• cadeia de caracteres 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
• chave InChI: WNOIORUCCYNQPE-UHFFFAOYSA-M

Descrição

Descrição geral

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.

Aplicação

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.

Informações de segurança

• Pictogramas: GHS07
• Palavra indicadora: Warning
• Frases de perigo: H315,H319,H335
• Declarações de precaução: P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338
• Classificações de perigo: Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
• Órgãos-alvo: Respiratory system
• Código de classe de armazenamento: 11 - Combustible Solids
• Classe de risco de água (WGK): WGK 3
• Ponto de fulgor (°F): Not applicable
• Ponto de fulgor (°C): Not applicable
• Equipamento de proteção individual: dust mask type N95 (US), Eyeshields, Gloves