NNK

4-(N-nitrosomethylamino)-1-(3-pyridyl)-1-butanone - chemical compound. Article “NNK” in Korean Wikipedia has 33.9 points for quality (as of July 1, 2026). The article contains 21 references and 12 sections.

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

Since the creation of article “NNK”, its content was written by 1 registered users of Korean Wikipedia and edited by 75 registered Wikipedia users in all languages.

The article is cited 1 times in Korean Wikipedia and cited 37 times in all languages.

The highest Authors Interest rank from 2001:

• Local (Korean): #35923 in November 2025
• Global: #88433 in September 2024

The highest popularity rank from 2008:

• Local (Korean): #294179 in February 2026
• Global: #448133 in June 2009

There are 8 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, 2026 (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) NNK		39.2519
2	Korean (ko) NNK		33.87
3	German (de) 4-(N-Nitrosomethylamino)-1-(3-pyridyl)-1-butanon		33.8102
4	Italian (it) Chetone nicotina-derivato della nitrosammina		29.3636
5	Chinese (zh) NNK (化合物)		11.4858
6	Persian (fa) ان‌ان‌ک		3.7799
7	Urdu (ur) NNK		3.6665
8	Japanese (ja) 4-(メチルニトロソアミノ)-1-(3-ピリジル)-1-ブタノン		2.4813

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

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

#	Language	Popularity award	Relative popularity
1	English (en) NNK		340 322
2	Japanese (ja) 4-(メチルニトロソアミノ)-1-(3-ピリジル)-1-ブタノン		15 039
3	Italian (it) Chetone nicotina-derivato della nitrosammina		3 821
4	Chinese (zh) NNK (化合物)		1 704
5	Persian (fa) ان‌ان‌ک		1 696
6	German (de) 4-(N-Nitrosomethylamino)-1-(3-pyridyl)-1-butanon		772
7	Korean (ko) NNK		85
8	Urdu (ur) NNK		11

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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 "NNK" in June 2026

#	Language	Popularity award	Relative popularity
1	English (en) NNK		1 149
2	Chinese (zh) NNK (化合物)		38
3	Italian (it) Chetone nicotina-derivato della nitrosammina		25
4	Japanese (ja) 4-(メチルニトロソアミノ)-1-(3-ピリジル)-1-ブタノン		19
5	German (de) 4-(N-Nitrosomethylamino)-1-(3-pyridyl)-1-butanon		16
6	Korean (ko) NNK		11
7	Persian (fa) ان‌ان‌ک		7
8	Urdu (ur) NNK		1

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

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

#	Language	AI award	Relative AI
1	English (en) NNK		48
2	German (de) 4-(N-Nitrosomethylamino)-1-(3-pyridyl)-1-butanon		7
3	Italian (it) Chetone nicotina-derivato della nitrosammina		7
4	Chinese (zh) NNK (化合物)		5
5	Persian (fa) ان‌ان‌ک		4
6	Japanese (ja) 4-(メチルニトロソアミノ)-1-(3-ピリジル)-1-ブタノン		3
7	Korean (ko) NNK		1
8	Urdu (ur) NNK		0

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

Language versions of the article "NNK" with the highest AI in June 2026

#	Language	AI award	Relative AI
1	German (de) 4-(N-Nitrosomethylamino)-1-(3-pyridyl)-1-butanon		0
2	English (en) NNK		0
3	Persian (fa) ان‌ان‌ک		0
4	Italian (it) Chetone nicotina-derivato della nitrosammina		0
5	Japanese (ja) 4-(メチルニトロソアミノ)-1-(3-ピリジル)-1-ブタノン		0
6	Korean (ko) NNK		0
7	Urdu (ur) NNK		0
8	Chinese (zh) NNK (化合物)		0

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

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

#	Language	CI award	Relative CI
1	English (en) NNK		17
2	Italian (it) Chetone nicotina-derivato della nitrosammina		7
3	Japanese (ja) 4-(メチルニトロソアミノ)-1-(3-ピリジル)-1-ブタノン		6
4	Chinese (zh) NNK (化合物)		4
5	German (de) 4-(N-Nitrosomethylamino)-1-(3-pyridyl)-1-butanon		2
6	Korean (ko) NNK		1
7	Persian (fa) ان‌ان‌ک		0
8	Urdu (ur) NNK		0

More...

#	Language	Value
de	German 4-(N-Nitrosomethylamino)-1-(3-pyridyl)-1-butanon
en	English NNK
fa	Persian ان‌ان‌ک
it	Italian Chetone nicotina-derivato della nitrosammina
ja	Japanese 4-(メチルニトロソアミノ)-1-(3-ピリジル)-1-ブタノン
ko	Korean NNK
ur	Urdu NNK
zh	Chinese NNK (化合物)

Best Rank

Korean: #294179 02.2026

Global: #448133 06.2009

Best Rank

Korean: #35923 11.2025

Global: #88433 09.2024

On 1 July 2026 in multilingual Wikipedia, Internet users most often read articles on the following topics: 2026 FIFA World Cup, Kylian Mbappé, Erling Haaland, Democratic Republic of the Congo, FIFA World Cup, Harry Kane, Romelu Lukaku, Senegal, Michael Olise, Sadio Mané.

In Korean Wikipedia the most popular articles on that day were: 문화방송, 김성훈 (1998년), 한국방송공사, 유튜브, 한성숙, 한국교육방송공사, 권오영 (1970년), 홍명보, 5·18 광주 민주화 운동, 다음.

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 50 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2026. When calculating current popularity and AI of articles data from June 2026 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2026... More information