Skip to Content
MilliporeSigma
All Photos(3)

Key Documents

View All Documentation

P8759

Sigma-Aldrich

Pyrogallol Red

Powder

Synonym(s):

Pyrogallolsulfonephthalein

Sign Into View Organizational & Contract Pricing
All Photos(3)

About This Item

Empirical Formula (Hill Notation):
C19H12O8S
CAS Number:
32638-88-3
Molecular Weight:
400.36
Beilstein/REAXYS Number:
61394
EC Number:
251-134-3
MDL number:
MFCD00005046
UNSPSC Code:
12171500
PubChem Substance ID:
24898975
NACRES:
NA.47

product name

Pyrogallol Red, Suitable for use as a complexometric indicator

Quality Level

200

form

powder

technique(s)

titration: suitable

color

green to very dark green, and brown

mp

≥300 °C (lit.)

solubility

1 M NH4OH: 10 mg/mL, clear

εmax

≥450 at 475 nm in methanol

suitability

suitable for complexometric indicator

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

Oc1ccc2c(Oc3c(O)c(O)ccc3C24OS(=O)(=O)c5ccccc45)c1O

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

Looking for similar products? Visit Product Comparison Guide

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.

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.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Customers Also Viewed

Slide 1 of 2

1 of 2

Sodium molybdate dihydrate ≥99.5%

Sigma-Aldrich

M1003

Sodium molybdate dihydrate

Total Protein Reagent

Sigma-Aldrich

T1949

Total Protein Reagent

Nicolas Herman et al.
Journal of veterinary internal medicine, 33(2), 999-1008 (2019-02-16)
There are no reference intervals for urinalysis in cattle. Characterize the urine of healthy cows, establish urine protein-to-creatinine ratio (UPC) reference intervals, and test possible differences among dairy and beef cattle, age groups, or stage of lactation. Seventy-seven dairy and
Tuula K Outinen et al.
Infectious diseases (London, England), 49(11-12), 840-846 (2017-08-02)
Puumala hantavirus (PUUV) causes haemorrhagic fever with renal syndrome characterized by thrombocytopenia, capillary leakage and acute kidney injury (AKI) with proteinuria and haematuria. Although the typical histologic lesion is acute tubulointerstitial nephritis, the amount of glomerular proteinuria predicts the severity
K de Leeuw et al.
Journal of critical care, 36, 200-206 (2016-11-05)
In patients with severe burns, resuscitation with large volumes of fluid is needed, partly because of an increase in capillary leakage. Corticosteroids might be beneficial by diminishing capillary leakage. This study aimed to assess in severely burned nonseptic patients whether
K Janšáková et al.
Physiological research, 68(3), 467-479 (2019-03-25)
Thermally processed food contains advanced glycation end products (AGEs) including N(epsilon)-(carboxymethyl)lysine (CML). Higher AGEs or circulating CML were shown to be associated with pregnancy complications such as preeclampsia and gestational diabetes. It is unclear whether this association is causal. The
Molecules-Kinetics of the Reaction of Pyrogallol Red, a Polyphenolic Dye, with Nitrous Acid: Role of NO and NO2
Molecules (Basel) null
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service