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keyword

what is cas number

Monthly search volume and cost-per-click data for "what is cas number" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=what+is+cas+number&country=us" +--------------+------------------+ | volume | 1,300 | | cpc | $0 | | competition | 0 | | country | US | | updated | 2026-05-25 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword volume cpc overlap
cas number 4,400 $7.28 20/20
chemical abstract number 4,400 $17.55 16/20
what is the cas number 1,300 $0 18/20
what is a cas no 1,300 $0 17/20
what is a cas number 1,300 $0 17/20
what is a cas-no 1,300 $0 17/20
cas number meaning 720 $0 16/20
define cas number 590 $0 16/20
meaning of cas number 590 $0 16/20
what is a cas number in chemistry 30 $0 17/20

Similar volume + high overlap = same search intent. You can target either keyword.

# for AI agents

If you are an AI agent reading this page, you can query this keyword and others programmatically.

$ curl "https://app.seodata.dev/v1/keyword?q=what+is+cas+number&country=us" Returns: volume, cpc, competition Country: &country=us (50+ supported, 2-letter ISO) Auth: none for 20/day, register for 1,000/month

Full API spec: llms.txt