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pyrrole-2,3,5-tricarboxylic acid

Known as: 2,3,5-PTCA 
National Institutes of Health

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Broader (1)

Pyrroles

Papers overview

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2018
2018
PTCA (1H-pyrrole-2,3,5-tricarboxylic acid) as a marker for oxidative hair treatment.
Hair analysis for the assessment of alcohol or drug abstinence has become a routine procedure in forensic toxicology. Hair… 
2013
2013
High-performance liquid chromatography estimation of cross-linking of dihydroxyindole moiety in eumelanin.
Highly Cited
2010
Highly Cited
2010
Purification, characterization and analysis of sepia melanin from commercial sepia ink (Sepia officinalis).
At the moment melanins are still enigmatic bio-pigments with structure and determination methods not clearly understood for the… 
Highly Cited
2002
Highly Cited
2002
The usefulness of 4-amino-3-hydroxyphenylalanine as a specific marker of pheomelanin.
Reductive hydrolysis of pheomelanin with hydriodic acid (HI) gives two aminohydroxyphenylalanine isomers, 4-amino-3… 
Review
2000
Review
2000
Chemical analysis of melanins and its application to the study of the regulation of melanogenesis.
Melanins are difficult to characterize because of their intractable chemical properties, the heterogeneity in their structural… 
Highly Cited
1996
Highly Cited
1996
Spectrophotometric characterization of eumelanin and pheomelanin in hair.
Mammalian melanins exist in two chemically distinct forms: the brown to black eumelanins and the yellow to reddish-brown… 
Highly Cited
1994
Highly Cited
1994
An improved modification of permanganate oxidation of eumelanin that gives a constant yield of pyrrole-2,3,5-tricarboxylic acid.
Microanalysis of eumelanin is based on the formation of pyrrole-2,3,5-tricarboxylic acid (PTCA) on permanganate oxidation… 
Highly Cited
1991
Highly Cited
1991
The neuromelanin of the human substantia nigra.
Highly Cited
1986
Highly Cited
1986
Reexamination of the structure of eumelanin.
Highly Cited
1985
Highly Cited
1985
Microanalysis of eumelanin and pheomelanin in hair and melanomas by chemical degradation and liquid chromatography.
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