Please login to your online account to display your discounted pricing

Alfa Aesar™ Cresol Red

$75.51 - $215.95

Chemical Identifiers

Chemical Name or Material Cresol Red
CAS 1733-12-6
Molecular Formula C21H18O5S
Formula Weight 382.44g/mol
MDL Number MFCD00005878
Beilstein 343399
Merck Index 14,2578
Synonym o-Cresolsulfonephthalein
View More Specs
Products
Catalog Number Mfr. No. Quantity Price Quantity    

AAA1724314

 
alfa aesar™
A17243-14
25g Each for $75.51

AAA1724322

 
alfa aesar™
A17243-22
100g Each for $215.95
Description & Specifications

Specifications

Melting Point >300°C
Quantity 25g
Chemical Name or Material Cresol Red
CAS 1733-12-6
Molecular Formula C21H18O5S
Formula Weight 382.44g/mol
MDL Number MFCD00005878
Beilstein 343399
Merck Index 14,2578
Synonym o-Cresolsulfonephthalein
Health Hazard 1 Warning
Health Hazard 2 GHS H Statement
H315-H319-H335
Causes skin irritation.
Causes serious eye irritation.
May cause respiratory irritation.
Health Hazard 3 GHS P Statement
P261-P280-P305+P351+P338-P304+P340-P405-P501a
Avoid breathing dust/fume/gas/mist/vapors/spray.
Wear protective gloves/protective clothing/eye protection/face protection.
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing.
Store locked up.
Dispose of contents/container in accordance with local/regional/national/international regulations.
TSCA TSCA

Applications
Cresol red is commonly used with lead acetate for the detection of urease after PAGE. It is also used as an indicator with the following transition intervals: pH 1.8 (orange) to pH 2.0 (yellow); pH 7.0 (yellow) to pH 8.8 (violet). 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.

Solubility
Soluble in water (slightly at 20°C), 50% ethanol (0.1%), dil. acids, and dil. alkalis. Insoluble in benzene.

Notes
Transition interval (acid): pH 1.8 (orange) to pH 2.0 (yellow); (alkaline) pH 7.0 (yellow) to pH 8.8 (violet)

Safety and Handling

Warning

GHS P Statement
P261-P280-P305+P351+P338-P304+P340-P405-P501a
Avoid breathing dust/fume/gas/mist/vapors/spray.
Wear protective gloves/protective clothing/eye protection/face protection.
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing.
Store locked up.
Dispose of contents/container in accordance with local/regional/national/international regulations.

GHS H Statement
H315-H319-H335
Causes skin irritation.
Causes serious eye irritation.
May cause respiratory irritation.