Citation Rankings
Highly Cited Researchers

Natural Sciences / Chemical Sciences Highly Cited Researchers 19 Scientists Citation Rankings - 2025

The Citation Rankings (Highly Cited Researchers) list highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the Scientists Last 6 Years Citation Index, Universities Total Citations Rankings 2025, and Universities Last 6 Years Citations Rankings 2025.

* Total Citation Counts Rankings
Ranking Based On Selection: 1
Brazil
Denise Brentan Da Silva
quimica organica
produtos naturais
espectrometria de massas
farmacognosia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,196
5,299
0.736
* Total Citation Counts Rankings
Ranking Based On Selection: 2
Brazil
Gilberto Maia
catálise
eletroquímica
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,755
2,544
0.677
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Brazil
Jamal Rafique
Organic Synthesis
Catalysis
Green Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,774
2,086
0.752
* Total Citation Counts Rankings
Ranking Based On Selection: 4
Brazil
Amilcar Machulek Junior
Físico-Química
Química Ambiental
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,739
1,469
0.536
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Brazil
Walmir Silva Garcez
Química de Produtos Naturais
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,480
1,107
0.446
* Total Citation Counts Rankings
Ranking Based On Selection: 7
Brazil
Valdir Souza Ferreira
Eletroanalítica
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,299
975
0.424
* Total Citation Counts Rankings
Ranking Based On Selection: 8
Brazil
Fernanda Rodrigues Garcez
Química de Produtos Naturais
Estudo químico biomonitorado de plantas
Elucidação estrutural de metabólitos secundários ve
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,111
860
0.407
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Brazil
Lincoln Oliveira
Química
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,914
1,048
0.548

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with 20 similarly ranked institutions at City, Country, Region, and Global levels. 

* Total Citation Counts Rankings
Ranking Based On Selection: 10
Brazil
Adilson Beatriz
Síntese Orgânica
Organic Synthesis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,830
909
0.497
* Total Citation Counts Rankings
Ranking Based On Selection: 11
Brazil
Petr Melnikov
Quimica
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,828
612
0.335
* Total Citation Counts Rankings
Ranking Based On Selection: 12
Brazil
Dênis Pires De Lima
Química Medicinal
Síntese Orgânica
Medicinal Chemistry
Organic Synthesis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,805
897
0.497
* Total Citation Counts Rankings
Ranking Based On Selection: 13
Brazil
Haroon Ur Rashid
MRI contrast agents
Anticancer Drugs
Medicinal Chemistry
In Silico Studies
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,504
1,306
0.868
* Total Citation Counts Rankings
Ranking Based On Selection: 14
Brazil
Gleison Antonio Casagrande
Química Inorgânica
Química dos Materiais
Química de Coordenação
Ouro
Metais de Transição
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
970
599
0.618
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Brazil
Adriano CM Baroni
Química medicinal
síntese orgânica
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
905
395
0.436
* Total Citation Counts Rankings
Ranking Based On Selection: 16
Brazil
André Luiz Dias Lima
Química
inorgânica
eletroquímica
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
87
84
0.966
* Total Citation Counts Rankings
Ranking Based On Selection: 17
Brazil
John Dayvan Maidana Serpa
Bioquímica
Sequência didática
formação de professores
educação em ciências e biologia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
49
47
0.959
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Brazil
Bhaskar Manda
organic chemistry. surfactant chemistry
supramolecular chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
46
19
0.413
* Total Citation Counts Rankings
Ranking Based On Selection: 19
Brazil
Aline Almeida
Bioquímica
Biotecnologia de enzimas e microrganismos
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8
8
1.000
* Total Citation Counts Rankings
Rankings
144,986
Brazil
2,506
3
Ranking Based On Selection: 1
Denise Brentan Da Silva
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,196
5,299
0.736
quimica organica
produtos naturais
espectrometria de massas
farmacognosia
* Total Citation Counts Rankings
Rankings
271,802
Brazil
6,592
20
Ranking Based On Selection: 2
Gilberto Maia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,755
2,544
0.677
* Total Citation Counts Rankings
Rankings
350,224
Brazil
9,452
39
Ranking Based On Selection: 3
Jamal Rafique
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,774
2,086
0.752
Organic Synthesis
Catalysis
Green Chemistry
* Total Citation Counts Rankings
Rankings
353,825
Brazil
9,571
42
Ranking Based On Selection: 4
Amilcar Machulek Junior
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,739
1,469
0.536
* Total Citation Counts Rankings
Rankings
382,343
Brazil
10,648
50
Ranking Based On Selection: 5
Walmir Silva Garcez
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,480
1,107
0.446
* Total Citation Counts Rankings
Rankings
391,964
Brazil
11,020
53
Ranking Based On Selection: 6
Marco Antonio Utrera Martines
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,401
1,099
0.458
* Total Citation Counts Rankings
Rankings
404,827
Brazil
11,545
55
Ranking Based On Selection: 7
Valdir Souza Ferreira
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,299
975
0.424
* Total Citation Counts Rankings
Rankings
431,046
Brazil
12,582
69
Ranking Based On Selection: 8
Fernanda Rodrigues Garcez
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,111
860
0.407
Química de Produtos Naturais
Estudo químico biomonitorado de plantas
Elucidação estrutural de metabólitos secundários ve
* Total Citation Counts Rankings
Rankings
462,230
Brazil
13,803
76
Ranking Based On Selection: 9
Lincoln Oliveira
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,914
1,048
0.548
* Total Citation Counts Rankings
Rankings
476,705
Brazil
14,340
79
Ranking Based On Selection: 10
Adilson Beatriz
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,830
909
0.497

360° Institutional Performance & Benchmarking Click Here for Live Demo 

Gain data-driven strategic insights into your institution’s academic performance, global positioning, and competitive strengths through advanced analysis and benchmarking

with 20 similarly ranked institutions at City, Country, Region, and Global levels. 

* Total Citation Counts Rankings
Rankings
477,098
Brazil
14,365
80
Ranking Based On Selection: 11
Petr Melnikov
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,828
612
0.335
* Total Citation Counts Rankings
Rankings
481,201
Brazil
14,520
82
Ranking Based On Selection: 12
Dênis Pires De Lima
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,805
897
0.497
Química Medicinal
Síntese Orgânica
Medicinal Chemistry
Organic Synthesis
* Total Citation Counts Rankings
Rankings
542,586
Brazil
16,983
95
Ranking Based On Selection: 13
Haroon Ur Rashid
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,504
1,306
0.868
MRI contrast agents
Anticancer Drugs
Medicinal Chemistry
In Silico Studies
* Total Citation Counts Rankings
Rankings
697,822
Brazil
23,788
136
Ranking Based On Selection: 14
Gleison Antonio Casagrande
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
970
599
0.618
Química Inorgânica
Química dos Materiais
Química de Coordenação
Ouro
Metais de Transição
* Total Citation Counts Rankings
Rankings
722,949
Brazil
24,884
141
Ranking Based On Selection: 15
Adriano CM Baroni
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
905
395
0.436
* Total Citation Counts Rankings
Rankings
1,675,741
Brazil
48,993
199
Ranking Based On Selection: 16
André Luiz Dias Lima
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
87
84
0.966
* Total Citation Counts Rankings
Rankings
1,887,181
Brazil
54,645
236
Ranking Based On Selection: 17
John Dayvan Maidana Serpa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
49
47
0.959
Bioquímica
Sequência didática
formação de professores
educação em ciências e biologia
* Total Citation Counts Rankings
Rankings
1,910,118
Brazil
55,370
243
Ranking Based On Selection: 18
Bhaskar Manda
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
46
19
0.413
organic chemistry. surfactant chemistry
supramolecular chemistry
* Total Citation Counts Rankings
Rankings
2,278,881
Brazil
68,041
353
Ranking Based On Selection: 19
Aline Almeida
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8
8
1.000
Bioquímica
Biotecnologia de enzimas e microrganismos