Cresol Red CAS 1733-12-6 O-Cresolsulfonphthalein

• CAS No.: 1733-12-6
• Formula: C21h18o5s
• EINECS: 217-064-2
• Classification: Organic Analytical Reagents
• Grade: AR
• Specific Usage: For Synthesis
• Model NO.: SUREST-77
• Content: Standard
• Usage: Laboratory Reagents, Analytical Reagents, Diagnostic Reagents, Teaching Reagents
• Source: Dry Powder
• Habit Appellation: Special Reagent
• Application: Industry, Scientific Research, Health, Environmental Protection, Agriculture
• Property: Organic Reagent
• Shelf Life: 2 Years
• Stock: Available
• Molecular Weight: 382.43
• Color: Reddish Brown
• Melting Point: 290 ºC
• Water Solubility: Soluble
• Transport Package: 25kg /Drum
• Specification: 98%min
• Trademark: Surest
• Origin: China
• HS Code: 2934991000
• Production Capacity: 1000 Tons Yearly

Product Description

Product Description

 

Name	Cresol Red
Synonyms	o-Cresolsulfonphthalein; 4,4'-(3H-2,1-Benzoxathiol-3-ylidene)bis(2-methylphenol) S,S-dioxide
Molecular Structure
Molecular Formula	C21H18O5S
Molecular Weight	382.43
CAS Registry Number	1733-12-6
EINECS	217-064-2

Properties

Melting point	290 ºC
Water solubility	soluble

 
 

Chemical Property/Description:

 

Cresol Red is an organic acid-base indicator with the appearance of a reddish brown crystalline powder. It is sensitive to PH and is yellow at PH 4.4-6.2, red at PH 6.2-8.3, and purple at PH greater than 8.3. it is not soluble in water, soluble in ethanol.



 

Main Uses:

 

1. Biochemical experiments:Cresol Red can be used for acid-base titration, electrophoresis staining and other experiments, and is often used as an indicator in yeast plasmid screening.

2. Textile field: Cresol Red can be used as a red dye on textiles.

3. Food field: Cresol Red can be added to food as a dyeing agent, such as strawberry flavored yogurt, juice drinks, etc. It should be noted that although Cresol Red is widely used in experimental and industrial production, it has been suspected of carcinogenicity and effects on the human nervous system in the past.

However, in practical applications, it is necessary to pay attention to its safety and use, so as not to cause harm to the human body and the environment.




 

Detailed Photos