Iodophenol blue

Structural formula
General
Surname	Iodophenol blue
other names	3 ', 3' ', 5', 5 '' - tetraiodophenolsulfonphthalein TIPS
Molecular formula	C 19 H 10 I 4 O 5 S
Brief description	orange to brown solid
External identifiers / databases
CAS number 4430-24-4 EC number 224-621-3 ECHA InfoCard 100.022.384 PubChem 78158 Wikidata Q1671953
properties
Molar mass	857.96 g mol −1
Physical state	firmly
Melting point	229 ° C
solubility	almost insoluble in water
safety instructions
GHS labeling of hazardous substances Caution H and P phrases H: 315-319-335 P: 261-305 + 351 + 338
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Iodophenol blue is a chemical compound from the group of triphenylmethane dyes and is related to phenolphthalein . It is the tetraiodic derivative of phenol red . It is used as an indicator substance and changes its color from green to blue in the pH range from 3.0 to 4.8.

literature

• HW Gao, Y. Qian, ZJ Hu: Tetraiodophenolsulfonphthalein as a spectral substitute to characterize the complexation between cationic and anionic surfactant . In: Journal of Colloid and Interface Science . tape 279 , no. 1 , 2004, ISSN  0021-9797 , p. 244-252 , doi : 10.1016 / j.jcis.2004.06.051 , PMID 15380435 .

Individual evidence

1. ↑ ^{a b} Data sheet iodophenol blue from AlfaAesar, accessed on March 31, 2010 ( PDF )(JavaScript required) .
2. ↑ ^{a b c d} data sheet 3 ′, 3 ′ ′, 5 ′, 5 ′ ′ - Tetraiodophenolsulfonephthalein from Sigma-Aldrich , accessed on April 5, 2011 ( PDF ).