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p-nitro-Phenol

(4-nitrophenyl) hydrogen sulfate · also: p-Nitrophenol sulfate, p-Nitrophenyl sulfate, P-Nitrophenol sulphate, p-nitrophenyl sulphate, para-Nitrophenyl sulfate, para-nitrophenyl sulphate

FormulaC6H5NO6S
Mol. weight219.167
PubChem CID80349
InChIKeyJBGHTSSFSSUKLR-UHFFFAOYSA-N
SMILESC1=CC(=CC=C1[N+](=O)[O-])OS(=O)(=O)O
318Patents
83Research papers
32Patents - last 3 years
1Papers - last 3 years

Who owns the IP

The organizations most actively patenting around this compound, ranked by referenced patent volume.

#AssigneePatents
1American Sterilizer Co26
23M Innovative Properties Co14
3DSM IP Assets BV12
4Massachusetts Institute of Technology12
5Otsuka Pharmaceutical Factory Inc7
6University of California San Diego UCSD7
7Bristol Myers Squibb Co6
8Millennium Pharmaceuticals Inc6
9Sanofi SA6
103M Co5

Explore the full landscape

This preview shows the leading assignees. Cypris reveals the full ownership landscape - every filing entity, filing trends, and portfolio momentum.

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Where innovation is concentrated

Patent classifications ranked by volume reveal the technical domains with the most active filing.

#CodeAreaPatents
1C12NMicroorganisms, enzymes174
2C12YEnzyme nomenclature (EC numbers)116
3C12PFermentation, enzyme processes112
4C12QMeasuring/testing involving enzymes91
5A61KMedicinal preparations81
6G01NInvestigating / analysing materials74
7A61PTherapeutic activity (drug indications)58
8C07KPeptides48
9Y10SCross-reference (legacy)25
10A23C18

AI mapped opportunity space

This preview shows where patent activity concentrates. Cypris maps the full classification landscape to surface technical whitespace and IP headroom.

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Where research is gaining momentum

Research themes ranked by publication activity show where scientific interest is accelerating around this compound.

#Research topicPapers
1Enzyme Production and Characterization1
2Polyamine Metabolism and Applications1

Who's driving the science

The most-published authors working with this compound, alongside their primary affiliations.

#AuthorAffiliationPapers
1Dong‐Hyun KimKyung Hee University5
2E FischerUniversity of Pecs5
3Attila AlmásiUniversity of Pecs4
4Alvan C. HenggeUtah State University3
5Eung‐Chil ChoiSeoul National University3
6Kyoichi KobashiTohoku Medical and Pharmaceutical University3
7Masahiro HayashiTokyo University of Pharmacy and Life Sciences3
8Pál PerjésiUniversity of Pecs3
9Shoji AwazuTokyo University of Pharmacy and Life Sciences3
10Takashi MizumaTokyo University of Pharmacy and Life Sciences3

Research leaders

This preview lists the top authors. Cypris surfaces the full researcher landscape, their affiliations, and how scientific influence is shifting.

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The literature that defines it

The most-cited papers anchoring the scientific record for this compound.

Frequently asked questions

Common questions about this compound's patent and research landscape, answered from the underlying data.

What is the molecular formula and weight of p-nitro-Phenol?

p-nitro-Phenol has the molecular formula C6H5NO6S and a molecular weight of 219.167 g/mol. It is also known by the canonical name (4-nitrophenyl) hydrogen sulfate.

Which organizations hold the most patents related to p-nitro-Phenol?

American Sterilizer Co holds the most patents with 26, followed by 3M Innovative Properties Co with 14 patents. Other significant patent holders include DSM IP Assets BV and Massachusetts Institute of Technology, each with 12 patents.

What research topics are most commonly associated with patents on this compound?

Patents on p-nitro-Phenol are most frequently classified under C12N (biotechnology and enzymes, 174 patents), C12Y (enzyme-related classifications, 116 patents), and C12P (bioprocessing, 112 patents). Analytical chemistry methods (G01N, 74 patents) and pharmaceutical applications (A61K, 81 patents) are also well represented.

Who are the most prolific authors publishing on p-nitro-Phenol?

The most prolific authors are Dong‐Hyun Kim from Kyung Hee University and E Fischer from University of Pecs, each with 5 papers. Attila Almási from University of Pecs follows with 4 papers, while several other authors including Alvan C. Hengge, Eung‐Chil Choi, and others each have 3 papers.

What analytical methods have been developed for measuring p-nitro-Phenol and related compounds?

A simple and rapid ion-pair HPLC method has been developed for simultaneous quantitation of 4-nitrophenol and its glucuronide and sulfate conjugates. Additionally, gas chromatographic–mass spectrometric analysis methods and liquid chromatography–tandem mass spectrometry approaches have been established for measuring p-nitro-Phenol metabolites in biological samples.

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