857890

m-Cresol Purple

indicator grade, Dye content 90 %

• Synonyme(s) : m-Cresolsulfonphthalein
• Formule empirique (notation de Hill) : C₂₁H₁₈O₅S
• CAS Number: 2303-01-7
• Poids moléculaire : 382.43
• Beilstein: 350314
• Numéro CE : 218-960-6
• Numéro MDL: MFCD00005871
• Code UNSPSC : 12171500
• ID de substance PubChem : 24888455
• Nomenclature NACRES : NA.47

Propriétés

• Qualité: indicator grade
• Niveau de qualité: 200
• Forme: powder
• Composition: Dye content, 90%
• Technique(s): titration: suitable
• Plage de pH utile: 1.2-2.8, red to yellow(acid); 7.4-9.0, yellow to violet(alkaline)
• ε (coefficient d'extinction): ≥ 11000 at 295-301 nm at 0.01 g/L (0.01 G/L in 0.005 N NAOH in Methanol); ≥26000 at 578-584 nm at 0.01 g/L (in 0.005 N NAOH in Methanol); ≥8000 at 369-375 nm at 0.01 g/L (in 0.005 N NAOH in Methanol)
• Application(s): diagnostic assay manufacturing; hematology; histology
• Température de stockage: room temp
• Chaîne SMILES: Cc1cc(O)ccc1\C(=C2/C=CC(=O)C=C2C)c3ccccc3S(O)(=O)=O
• InChI: 1S/C21H18O5S/c1-13-11-15(22)7-9-17(13)21(18-10-8-16(23)12-14(18)2)19-5-3-4-6-20(19)27(24,25)26-21/h3-12,22-23H,1-2H3
• Clé InChI: OLQIKGSZDTXODA-UHFFFAOYSA-N

Description

Description générale

m-Cresol Purple (meta Cresol Purple) is a sulfonephthalein dye. It is also known as m-Cresolsulfonphthalein.

Application

m-Cresol purple has been used to measure pH via spectrophotometer.

Actions biochimiques/physiologiques

m-Cresol purple is a pH indicator. It changes from red (pH 1.2) to yellow (2.8) and yellow (7.4) to purple (9.0).

Informations sur la sécurité

• Code de la classe de stockage: 11 - Combustible Solids
• Classe de danger pour l'eau (WGK): WGK 3
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable