Impact Factor & Key Scientometrics


Impact Factor


H Index


Impact Factor


I. Basic Journal Info


United Kingdom
Journal ISSN: 09334807, 21954720
Publisher: International Society of Pteridinology
History: 1990-ongoing
Journal Hompage: Link
How to Get Published:

Research Categories


It is the policy of Pteridines to publish reviews, original papers, short communications, technical notes, letters to the editors and reports of meetings dealing with all aspects of the chemistry, pathobiochemistry, clinical biochemistry, clinical toxicology, drug monitoring and laboratory diagnosis of genetic disorders, both in humans and in animals of pteridines and related materials. Papers are published after refereeing. Contributions appear in English only: they are accepted on the understanding that the work described has not been published before (except in the form of an abstract or as part of a published lecture review or thesis).

II. Science Citation Report (SCR)

SCR Impact Factor

SCR Journal Ranking

SCImago SJR Rank

SCImago Journal Rank (SJR indicator) is a measure of scientific influence of scholarly journals that accounts for both the number of citations received by a journal and the importance or prestige of the journals where such citations come from.


Scopus 2-Year Impact Factor Trend

Note: impact factor data for reference only

Scopus 3-Year Impact Factor Trend

Note: impact factor data for reference only

Scopus 4-Year Impact Factor Trend

Note: impact factor data for reference only

Impact Factor History

2-year 3-year 4-year
  • 2022 Impact Factor
    0.438 0.518 0.635
  • 2021 Impact Factor
    0.643 0.767 0.864
  • 2020 Impact Factor
    0.561 0.597 0.521
  • 2019 Impact Factor
    0.359 0.292 0.545
  • 2018 Impact Factor
    0.467 0.667 0.649
  • 2017 Impact Factor
    0.667 0.556 0.559
  • 2016 Impact Factor
    0.63 0.424 0.382
  • 2015 Impact Factor
    0.4 0.42 0.452
  • 2014 Impact Factor
    0.25 NA NA
  • 2013 Impact Factor
    1 NA NA
  • 2012 Impact Factor
    0.409 NA NA
  • 2011 Impact Factor
    0.238 NA NA
  • 2010 Impact Factor
    0.458 NA NA
  • 2009 Impact Factor
    0.37 NA NA
  • 2008 Impact Factor
    0.531 NA NA
  • 2007 Impact Factor
    0.645 NA NA
  • 2006 Impact Factor
    0.633 NA NA
  • 2005 Impact Factor
    0.528 NA NA
  • 2004 Impact Factor
    0.432 NA NA
  • 2003 Impact Factor
    0.31 NA NA
  • 2002 Impact Factor
    0.4 NA NA
  • 2001 Impact Factor
    0.392 NA NA
  • 2000 Impact Factor
    0.577 NA NA
Note: impact factor data for reference only




Impact Factor

Impact factor (IF) is a scientometric factor based on the yearly average number of citations on articles published by a particular journal in the last two years. A journal impact factor is frequently used as a proxy for the relative importance of a journal within its field. Find out more: What is a good impact factor?

III. Other Science Influence Indicators

Any impact factor or scientometric indicator alone will not give you the full picture of a science journal. There are also other factors such as H-Index, Self-Citation Ratio, SJR, SNIP, etc. Researchers may also consider the practical aspect of a journal such as publication fees, acceptance rate, review speed. (Learn More)


The h-index is an author-level metric that attempts to measure both the productivity and citation impact of the publications of a scientist or scholar. The index is based on the set of the scientist's most cited papers and the number of citations that they have received in other publications


H-Index History