Citation Rankings
Highly Cited Researchers

Natural Sciences / Chemical Sciences Highly Cited Researchers 6 Scientists Citation Rankings (Sort by last 6 years Citation Index) - 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.

* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 1
Sudan
Azhari Hamid Nour
Natural Products Chemistry
bioactives
antioxidant
antiinflammatory
anticancer
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,718
1,463
0.538
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 2
Sudan
Mahmoud Mohamed Ali
chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
284
223
0.785
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 3
Sudan
Omer Adam Omer Ishag
Green chemistry
Catalysis
Biomass
Biofuels
Natural products
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
176
170
0.966
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 4
Sudan
Ibrahim Yaagoub Erwa
Natural Science
Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
180
169
0.939
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 5
Sudan
Awadalla Babiker Omer
Natural product
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
56
53
0.946
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 6
Sudan
Asmo Abdullahi Hassan
Organic Chemistry - Analytical Chemistry - physical chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2
2
1.000
* Last 6 Years Citation Counts Rankings
Rankings
324,432
Sudan
20
1
Ranking Based On Selection: 1
Azhari Hamid Nour
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,718
1,463
0.538
Natural Products Chemistry
bioactives
antioxidant
antiinflammatory
anticancer
* Last 6 Years Citation Counts Rankings
Rankings
1,055,183
Sudan
236
2
Ranking Based On Selection: 2
Mahmoud Mohamed Ali
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
284
223
0.785
* Last 6 Years Citation Counts Rankings
Rankings
1,185,554
Sudan
304
4
Ranking Based On Selection: 3
Omer Adam Omer Ishag
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
176
170
0.966
Green chemistry
Catalysis
Biomass
Biofuels
Natural products
* Last 6 Years Citation Counts Rankings
Rankings
1,188,214
Sudan
305
5
Ranking Based On Selection: 4
Ibrahim Yaagoub Erwa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
180
169
0.939
* Last 6 Years Citation Counts Rankings
Rankings
1,701,868
Sudan
739
15
Ranking Based On Selection: 5
Awadalla Babiker Omer
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
56
53
0.946
* Last 6 Years Citation Counts Rankings
Rankings
2,325,746
Sudan
1,572
34
Ranking Based On Selection: 6
Asmo Abdullahi Hassan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2
2
1.000
Organic Chemistry - Analytical Chemistry - physical chemistry