Cresol red

• Catalog No.: 114472
• CAS Number: 1733-12-6
• M. F.: C21H18O5S
• M. W.: 382.42962

SYNONYMS

• Title: 甲酚红
• IUPAC name: 3,3-bis(4-hydroxy-3-methylphenyl)-3H-2,1λ^6-benzoxathiole-1,1-dione
• IUPAC Traditional name: cresol red
• Synonyms: 邻甲酚磺酰酞; o-Cresolsulfonphthalein

DATABASE IDS

• CAS Number: 1733-12-6
• EC Number: 217-064-2
• Beilstein Number: 343399
• MDL Number: MFCD00005878
• PubChem SID: 24847173

PROPERTIES

• Compostion: Dye content, 95%
• Empirical Formula (Hill Notation): C21H18O5S
• Grade: indicator grade
• pH Range: 7.2 - 8.8, yellow to red
• Useful pH Range: 1.8 - 2.0, orange to yellow (acid)
• Useful pH Range: 7.0 - 8.8, yellow to violet (alkaline)
• Absorption Wavelength: λmax 367 nm (2nd)
• Absorption Wavelength: λmax 570 nm
• GHS Signal Word: Warning
• GHS Hazard statements: H315-H319-H335
• European Hazard Symbols: Irritant (Xi)
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves
• GHS Precautionary statements: P261-P305 + P351 + P338
• Risk Statements: 36/37/38
• Safety Statements: 26-36
• German water hazard class: 3

DETAILS

Description (English)

Packaging
5, 25 g in glass bottle
Application
Cresol Red is used as a tracking dye in DNA, RNA (agarose) and protein (polyacrylamide) electrophoresis. In agarose, Cresol Red runs with an apparent molecular size of approx. 125 bp DNA. Cresol Red does not inhibit Taq polymerase. Recently Cresol Red has been used as a pH sensitive indicator dye in nanoengineered optical urea biosensors films and hetero-core structured fiber optic pH sensor.

Description (简体中文)

包装
5, 25 g in glass bottle
Application
Cresol Red is used as a tracking dye in DNA, RNA (agarose) and protein (polyacrylamide) electrophoresis. In agarose, Cresol Red runs with an apparent molecular size of approx. 125 bp DNA. Cresol Red does not inhibit Taq polymerase. Recently Cresol Red has been used as a pH sensitive indicator dye in nanoengineered optical urea biosensors films and hetero-core structured fiber optic pH sensor.