Essential Oil Components by GCMS

The Essential Oils by GC/MS database was born over 40 years ago, when Professor Robert P. Adams began his research on terpenes, and populated the database with his research and the contributions of dozens of respected plant biologists around the world.

Version 4 of the Terpene database now includes the spectra and retention times for 2,205 compounds. This product includes a searchable database in either Agilent or NIST compatible formats and an electronic copy of the book “Essential Oil Components by GC/MS” with spectra, retention times, structures, and more.

NEW! The NIST version of the Essential Oil Components database has been significantly upgraded! The following changes are available in the upgrade.

Chiral structures are displayed and are searchable for all compounds.

Retention Index is in the NIST comments field, with chromatographic conditions disclosed.

Retention index is now displayed in the NIST search report, thus adding easy secondary confirmation of compound identity.

InChlKey provides access to PubChem for structure confirmation.

Compound names have retention time prefix removed. Now you can perform searches by compound name.

Existing owners of the NIST version of the Essential Oil Components Database may order upgrades.

More information on the database may be found at

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