PubChem on new websites

1. PubChem appeared on 1 new site in the last 30 days.^[1]

The line is the 7-day average share of new sites that use PubChem, since 16 September. It starts at our first detection.

#	Movement	Tool	Share of all sites	Share of category	Bar
1	–	LocalLogic	0.1%	22.7%
2	▼1	The Movie Database	<0.1%	6.7%
3	▲1	Daum Postcode	<0.1%	5.4%
4	▼1	ViaCEP	<0.1%	3.6%
5	▼1	Frankfurter	<0.1%	3.3%
6	▲2	Walk Score	<0.1%	2.8%
7	▼2	Dimensions	<0.1%	1.9%
8	▼2	Open Food Facts	<0.1%	1.9%
9	▼1	Postcodes.io	<0.1%	1.7%
10	▲10	NASA Open Data	<0.1%	1.7%
11	▲7	Wikidata	<0.1%	1.5%
12	▼3	BigDataCloud	<0.1%	1.5%
…
177	▼73	PubChem	<0.1%	0.1%

All-time shares across the new sites we track: of all of them, and of the sites using any Data API tool. Among September launches it ranked #179 in Data API, down from #106 in August. All 1525 in Data API

7 of the 12 sites using PubChem are product launches we list individually. The other 5 are new business and personal sites: they count towards the figures above but are not listed here. A watch sends them to you.

• Molarity Calculator | ToolsArena.NET toolsarena.net
• SciTuu Wet Lab Tools scituu.com
• MolSketch molsketch.net

Site	Found	Also detected
ChemArche chemarche.com	Sep 6
TalanaiHub: Ziziphus talanai Bioinformatics Resource talanaihub.com	Aug 21
Molarity Calculator | ToolsArena.NET toolsarena.net	Aug 14
RicoLab — 이공계 화학 실험보고서 도우미 reportcoworkerlab.com	Aug 13
ResearchOS research-os.app	Aug 2
SciTuu Wet Lab Tools scituu.com	Jul 29
MolSketch molsketch.net · Japan	May 19

Watches, exports and the API give you all 12 sites using PubChem, from £15 a month.

1. These figures cover websites that went live since April 2026, not the web as a whole.