Purpurin

Purpurin - chemical compound. Article “Purpurin” in German Wikipedia has 29.4 points for quality (as of July 1, 2025). The article contains 9 references and 3 sections.

This article has the best quality in English Wikipedia. Also, this article is the most popular in that (German) language version.

Since the creation of article “Purpurin”, its content was written by 26 registered users of German Wikipedia and edited by 130 registered Wikipedia users in all languages.

The article is cited 16 times in German Wikipedia and cited 116 times in all languages.

The highest Authors Interest rank from 2001:

• Local (German): #23012 in February 2010
• Global: #50237 in November 2014

The highest popularity rank from 2008:

• Local (German): #317859 in July 2016
• Global: #258744 in November 2014

There are 11 language versions for this article in the WikiRank database (of the considered 55 Wikipedia language editions).

The quality and popularity assessment was based on Wikipédia dumps from July 1, 2025 (including revision history and pageviews for previous years).

The table below shows the language versions of the article with the highest quality.

#	Language	Quality grade	Quality score
1	English (en) 1,2,4-Trihydroxyanthraquinone		34.4814
2	Serbo-Croatian (sh) 1,2,4-Trihidroksiantrahinon		32.7937
3	Polish (pl) Purpuryna		30.9085
4	German (de) Purpurin		29.3625
5	Serbian (sr) 1,2,4-Trihidroksiantrahinon		25.796
6	French (fr) Purpurine		10.6332
7	Dutch (nl) Purpurine		10.5332
8	Japanese (ja) プルプリン		7.5895
9	Portuguese (pt) Purpurina		3.5937
10	Estonian (et) Purpuriin		2.5337

More...

The following table shows the most popular language versions of the article.

The most popular language versions of the article "Purpurin" in all the time

#	Language	Popularity award	Relative popularity
1	English (en) 1,2,4-Trihydroxyanthraquinone		87 141
2	Portuguese (pt) Purpurina		76 141
3	Japanese (ja) プルプリン		26 225
4	German (de) Purpurin		23 618
5	French (fr) Purpurine		23 304
6	Polish (pl) Purpuryna		5 762
7	Estonian (et) Purpuriin		3 555
8	Dutch (nl) Purpurine		2 921
9	Serbian (sr) 1,2,4-Trihidroksiantrahinon		704
10	Persian (fa) پورپورین		621

More...

The following table shows the language versions of the article with the highest popularity in the last month.

The most popular language versions of the article "Purpurin" in June 2025

#	Language	Popularity award	Relative popularity
1	English (en) 1,2,4-Trihydroxyanthraquinone		408
2	Portuguese (pt) Purpurina		90
3	Japanese (ja) プルプリン		81
4	French (fr) Purpurine		70
5	German (de) Purpurin		69
6	Dutch (nl) Purpurine		33
7	Polish (pl) Purpuryna		28
8	Estonian (et) Purpuriin		7
9	Serbo-Croatian (sh) 1,2,4-Trihidroksiantrahinon		6
10	Serbian (sr) 1,2,4-Trihidroksiantrahinon		5

More...

The following table shows the language versions of the article with the highest Authors’ Interest.

Language versions of the article "Purpurin" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.

#	Language	AI award	Relative AI
1	English (en) 1,2,4-Trihydroxyanthraquinone		43
2	German (de) Purpurin		26
3	Japanese (ja) プルプリン		12
4	French (fr) Purpurine		11
5	Polish (pl) Purpuryna		10
6	Estonian (et) Purpuriin		8
7	Portuguese (pt) Purpurina		8
8	Persian (fa) پورپورین		4
9	Dutch (nl) Purpurine		4
10	Serbo-Croatian (sh) 1,2,4-Trihidroksiantrahinon		2

More...

The following table shows the language versions of the article with the highest Authors’ Interest in the last month.

Language versions of the article "Purpurin" with the highest AI in June 2025

#	Language	AI award	Relative AI
1	German (de) Purpurin		0
2	English (en) 1,2,4-Trihydroxyanthraquinone		0
3	Estonian (et) Purpuriin		0
4	Persian (fa) پورپورین		0
5	French (fr) Purpurine		0
6	Japanese (ja) プルプリン		0
7	Dutch (nl) Purpurine		0
8	Polish (pl) Purpuryna		0
9	Portuguese (pt) Purpurina		0
10	Serbo-Croatian (sh) 1,2,4-Trihidroksiantrahinon		0

More...

The following table shows the language versions of the article with the highest number of citations.

Language versions of the article "Purpurin" with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	English (en) 1,2,4-Trihydroxyanthraquinone		32
2	German (de) Purpurin		16
3	Japanese (ja) プルプリン		14
4	French (fr) Purpurine		13
5	Portuguese (pt) Purpurina		9
6	Estonian (et) Purpuriin		7
7	Dutch (nl) Purpurine		6
8	Serbo-Croatian (sh) 1,2,4-Trihidroksiantrahinon		6
9	Polish (pl) Purpuryna		5
10	Serbian (sr) 1,2,4-Trihidroksiantrahinon		5

More...

#	Language	Value
de	German Purpurin
en	English 1,2,4-Trihydroxyanthraquinone
et	Estonian Purpuriin
fa	Persian پورپورین
fr	French Purpurine
ja	Japanese プルプリン
nl	Dutch Purpurine
pl	Polish Purpuryna
pt	Portuguese Purpurina
sh	Serbo-Croatian 1,2,4-Trihidroksiantrahinon
sr	Serbian 1,2,4-Trihidroksiantrahinon

Best Rank

German: #317859 07.2016

Global: #258744 11.2014

Best Rank

German: #23012 02.2010

Global: #50237 11.2014

On 28 January 2026 in multilingual Wikipedia, Internet users most often read articles on the following topics: 2025–26 UEFA Champions League, Nipah virus, Doomsday Clock, UEFA Champions League, Elena Rybakina, Donald Trump, 2026 European Men's Handball Championship, killing of Alex Pretti, Kristi Noem, deaths in 2026.

In German Wikipedia the most popular articles on that day were: Whitney Houston, Fall Gil Ofarim, Gil Ofarim, Handball-Europameisterschaft der Männer 2026, Der neue Freund, Tova Friedman, Sven Schulze (Politiker, 1979), Liste der größten Auslegerbrücken, Bobbi Kristina Brown, Patricia Aulitzky.

The WikiRank project is intended for automatic relative evaluation of the articles in the various language versions of Wikipedia. At the moment the service allows to compare over 44 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2025. When calculating current popularity and AI of articles data from June 2025 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2025... More information