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Pyrogallol Red

SIGMA/P8759 - Suitable for use as a complexometric indicator

Synonym: Pyrogallolsulfonephthalein

CAS Number: 32638-88-3
Empirical Formula (Hill Notation): C19H12O8S
Molecular Weight: 400.36
EC Number: 251-134-3
MDL Number: MFCD00005046
Linear Formula: C19H12O8S
Product Type: Chemical
Catalog Number PKG Qty. Price Quantity
45-P8759-5G 5 g
 $214.00
1/EA		 Add To Favorites
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: P8759-5G
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: P8759-5G

 

εmax ≥450 at 475 nm in methanol
application(s) diagnostic assay manufacturing
hematology
histology
color green to very dark green, and brown
form powder
InChI 1S/C19H12O8S/c20-12-7-5-10-17(15(12)22)26-18-11(6-8-13(21)16(18)23)19(10)9-3-1-2-4-14(9)28(24,25)27-19/h1-8,20-23H
InChI key KUQNCHZOCSYKOR-UHFFFAOYSA-N
mp ≥300 °C (lit.)
Quality Level 200 
SMILES string Oc1ccc2c(Oc3c(O)c(O)ccc3C24OS(=O)(=O)c5ccccc45)c1O
solubility 1 M NH4OH: 10 mg/mL, clear
storage temp. room temp
suitability suitable for complexometric indicator
technique(s) titration: suitable
Application: Pyrogallol Red is suitable to prepare Fujita and Watanabe dye reagent used in Pyrogallol Red-Molybdenum (IV) complex (PR) method for the determination and quantification of urinary proteins.
General description: Pyrogallol red (PGR) is an ortho-diphenolic dye. It has high reactivity towards reactive oxygen species (ROS) and reactive nitrogen species (RNS) that include peroxynitrite, radical, peroxyl radicals, hypochlorite & superoxide anion.
Packaging: 5 g in glass bottle
RIDADR NONH for all modes of transport
WGK Germany WGK 3
Flash Point(F) Not applicable
Flash Point(C) Not applicable
mp ≥300 °C (lit.)
Storage Temp. room temp
UNSPSC 12171500

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