PHENOL RED

Synonyms. Phenolsulfonphthalein; 4,4'-(3H-2,1-Benzoxathiol-3-ylidene)diphenol S,S-dioxide; Fenolipuna; Phenol Red; Phenolsulphonphthalein; Sulfonphthal; Sulphental; Sulphonthal; 4,4'-(1,1-Dioxido-3H-2,1-benzoxathiol-3-ylidene)bisphenol; Fenolipuna; 3,3-Bis(4-hydroxyphenyl)-3H-2,1-benzoxathiole-1,1-dioxide;

PHENOLSULFONPHTHALEIN 

Click for original image

 

PRODUCT IDENTIFICATION

CAS RN

143-74-8

EINECS RN

205-609-7

FORMULA

C19H14O5S

MOLE WEIGHT

354.38

H.S CODE

2934.99.4400

SMILES

C1(c2c(cccc2)S(O1)(=O)=O)(c1ccc(O)cc1)c1ccc(O)cc1

CLASSIFICATION

pH indicator, Coloring agent, Triarylmethane dye

EXTRA NOTES

Red dye, pH indicator, and diagnostic aid for determination of renal function. It is used also for studies of the gastrointestinal and other systems.[MeSH]
Visual transition interval: pH 6.5 (yellow) - - pH 7.0 (orange) - pH 8.2 (red)
Other RN: 2877-88-5

 

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE.

dark red crystalline powder

MELTING POINT

> 300 C

BOILING POINT

 

DENSITY

 

SOLUBILITY IN WATER

Slightly soluble

SOLVENT SOLUBILITY

 

VAPOR DENSITY

 

log P(octanol-water)

 

VAPOR PRESSURE

 

AUTOIGNITION TEMP

605 C
pK

 

REFRACTIVE INDEX

 

FLASH POINT

79 C

 

STABILITY AND REACTIVITY
STABILITY Stable under normal conditions.

INCOMPATIBLE MATERIALS

Strong oxidizing agents

POLYMERIZATION

Has not been reported

NFPA RATINGS

Health: 2, Flammability: 0, Reactivity: 0

 

EXTERNAL LINKS & GENERAL DESCRIPTION

USA.gov - Phenolsulfonphthalein

Wikipedia Linking - Phenol red

Google Scholar Search - Phenolsulfonphthalein

U.S. National Library of Medicine - Phenolsulfonphthalein

PubChem Compound Summary - Phenolsulfonphthalein

KEGG (Kyoto Encyclopedia of Genes and Genomes) -  Phenolsulfonphthalein

ChEBI (http://www.ebi.ac.uk/chebi/) -  Phenolsulfonphthalein

NCBI (http://www.ncbi.nlm.nih.gov/) -  Phenolsulfonphthalein

Material Safety Data Sheet - Phenolsulfonphthalein

EPA - Substance Registry Services - Phenolsulfonphthalein

Local:
APPLICATIONS: pH Indicator, Indicating dye for histones, dental cleaning, Tracing dye for acrylamide.

 

SALES SPECIFICATION

APPEARANCE

dark red crystalline powder

ASSAY

~ 95%

MELTING POINT

> 300 C

SOLUTION CRALITY

pass

LOSS ON DRYING

pH 6.5 (yellow) - - pH 7.0 (orange) - pH 8.2 (red)

 

TRANSPORT & REGULATORY INFORMATION

UN NO.

 

HAZARD CLASS

 

PACKING GROUP  

 

SAFETY INFORMATION

HAZARD OVERVIEW

GHS (Globally Harmonised System) Classification: Skin irritation. Eye irritation. Specific target organ toxicity - single exposure. Hazard statements: Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.

SIGNAL WORD Warning

PICTOGRAMS

HAZARD STATEMENTS

H315-H319-H335

P STATEMENTS

P261-P305 + P351 + P338

EC DIRECTIVES

 

HAZARD CODES

RISK PHRASES

36/37/38

SAFETY PHRASES

26-36

 

PACKING

Preserve in light-resistant and well-closed containers

 

PRICE INFORMATION