Proudly Provided by the ChemSpider Team

Welcome to the ChemSpider Web Services for Mass Spectrometry. These services are offered free of charge to our users during this period of testing, validation and feedback. Some of these services will be made available commercially in the future and we are proactively informing you of our intention to do this. It is likely that these services will remain available to academia at no charge.

Some of the web service operations listed here require a "Security Token". To obtain a token please complete the registration process and visit your Profile page. Your Security Token is listed there.

Please send all feedback to development-at-chemspider-dot-com

The following operations are supported. For a formal definition, please review the Service Description.

• GetCompoundDetails
  Return specified compound details. This operation is deprecated and will be removed soon - use GetExtendedCompoundInfo instead.
• GetDatabases
  Get the list of datasources in ChemSpider.
• GetExtendedCompoundInfo
  Get extended record details by CSID. Security token is required to get access to this service.
• GetExtendedCompoundInfoArray
  Get array of extended record details by an array of CSIDs. Security token is required to get access to this service.
• SearchByFormula
  Search ChemSpider compounds by molecular formula within specified datasources list. This operation is deprecated and will be removed soon - use SearchByFormulaAsync instead.
• SearchByFormula2
  Search ChemSpider compounds by molecular formula.
• SearchByFormulaAsync
  Search ChemSpider compounds by molecular formula within specified datasources list. Security token is required to get access to this service.
• SearchByMass
  Search ChemSpider compounds by mass +/- range within specified datasources list. This operation is deprecated and will be removed soon - use SearchByMassAsync instead.
• SearchByMass2
  Search ChemSpider compounds by mass +/- range.
• SearchByMassAsync
  Search ChemSpider compounds by mass +/- range within specified datasources list. Security token is required to get access to this service.