Unofficial PubChem MCP Server

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search_by_cas_number

Find chemical compounds using CAS Registry Numbers to access detailed molecular properties and bioassay data from the PubChem database.

Instructions

Search for compounds by CAS Registry Number

Input Schema

Name	Required	Description	Default
`cas_number`	Yes	CAS Registry Number (e.g., 50-78-2)

Input Schema (JSON Schema)

{
  "properties": {
    "cas_number": {
      "description": "CAS Registry Number (e.g., 50-78-2)",
      "type": "string"
    }
  },
  "required": [
    "cas_number"
  ],
  "type": "object"
}

Install Server

HTTP connection URL

Related Tools

search_compounds
@Augmented-Nature/Augmented-Nature-PubChem-MCP-Server
search_by_cas_number
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search_compounds
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search_by_inchi
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get_compound_info
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batch_compound_lookup
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