TABLE 2.
Terpenes detected in vape liquid, vapor and aerosol samples.
| Compound names | CAS# | Formula | MW | Functions | Liquid a | Vapor a | Aerosol a |
|---|---|---|---|---|---|---|---|
| Caryophyllene | 000087-44-5 | C15H24 | 204.4 | Terpene | 12 | 12 | 10 |
| Alpha-Bisabolol | 000515-69-5 | C15H26O | 222.4 | Terpene | 11 | 11 | 8 |
| Linalool | 000078-70-6 | C10H18O | 154.3 | Terpene | 10 | 10 | 9 |
| Alpha-Humulene/Humulene | 006753-98-6 | C15H24 | 204.4 | Terpene/Flavor | 9 | 12 | 10 |
| D-limonene | 005989-27-5 | C10H16 | 136.2 | Terpene/Flavor | 8 | 9 | 10 |
| Phytol | 000150-86-7 | C20H40O | 296.5 | Terpene | 8 | 9 | x |
| Caryophyllene oxide | 001139-30-6 | C15H24O | 220.4 | Terpene | 8 | 7 | 6 |
| Eudesma-3,7(11)-diene/Selina-3,7(11)-diene | 006813-21-4 | C15H24 | 204.4 | Terpene | 6 | 11 | 10 |
| Fenchol | 001632-73-1 | C10H18O | 154.3 | Terpene | 6 | 7 | 9 |
| Nerolidol/(+)-Nerolidol | 007212-44-4/000142-50-7 | C15H26O | 222.4 | Terpene/Flavor/Fragrance | 6 | 7 | 3 |
| Squalene | 000111-02-4 | C30H50 | 410.7 | Natural extract | 6 | 4 | 1 |
| Gamma-Selinene | 000515-17-3 | C15H24 | 204.4 | Terpene | 5 | 7 | 5 |
| Beta-Myrcene | 000123-35-3 | C10H16 | 136.2 | Terpene | 5 | 5 | 8 |
| Terpinolene | 000586-62-9 | C10H16 | 136.2 | Terpene/Flavor/Fragrance | 4 | 6 | 10 |
| Alpha-Terpineol/(+)-Alpha-Terpineol | 000098-55-5/007785-53-7 | C10H18O | 154.3 | Terpene/Flavor/Fragrance | 4 | 2 | 1 |
| 2(10)-Pinene/Beta-Pinene | 000127-91-3 | C10H16 | 136.2 | Terpene | 3 | 8 | 9 |
| Alpha-Selinene/(+)-Alpha-Selinene | 000473-13-2 | C15H24 | 204.4 | Terpene | 3 | 5 | 5 |
| Alpha-Eudesmol | 000473-16-5 | C15H26O | 222.4 | Terpene | 3 | 4 | 3 |
| Guaiol | 000489-86-1 | C15H26O | 222.4 | Terpene | 3 | 4 | 3 |
| Valencene | 004630-07-3 | C15H24 | 204.4 | Flavor/Fragrance | 3 | 4 | 3 |
| Beta-Maaliene | 000489-29-2 | C15H24 | 204.4 | Terpene | 3 | 2 | 2 |
| Copaene | 003856-25-5 | C15H24 | 204.4 | Terpene | 2 | 7 | 8 |
| Borneol/Endo-borneol | 000507-70-0 | C10H18O | 154.3 | Terpene | 2 | 5 | 3 |
| Neophytadiene | 000504-96-1 | C20H38 | 278.5 | Terpene | 2 | 5 | 1 |
| Bulnesol | 022451-73-6 | C15H26O | 222.4 | Terpene | 2 | 4 | 3 |
| m-Camphorene | 020016-73-3 | C20H32 | 272.5 | Terpene | 2 | 3 | x |
| Delta-Guaiene/Alpha-Bulnesene | 003691-11-0 | C15H24 | 204.4 | Terpene | 2 | 2 | 5 |
| Gamma-Eudesmol | 001209-71-8 | C15H26O | 222.4 | Terpene | 2 | 2 | x |
| Junipercamphor | 000473-04-1 | C15H26O | 222.4 | Terpene | 2 | 2 | 1 |
| Alloaromadendrene | 025246-27-9 | C15H24 | 204.4 | Terpene | 2 | 1 | 2 |
| Beta-Cadinene/(-)-beta-Cadinene | 003858-53-5/523-47-7 | C15H24 | 204.4 | Terpene/Flavor/Fragrance | 2 | 1 | x |
| Isoledene | 095910-36-4 | C15H24 | 204.4 | Terpene | 2 | x | 1 |
| 2-Pinene | 000080-56-8 | C10H16 | 136.2 | Terpene | 1 | 9 | 9 |
| 3-Carene/Delta-3-carene | 013466-78-9 | C10H16 | 136.2 | Terpene/Flavor/Fragrance | 1 | 3 | 4 |
| Isoborneol | 000124-76-5 | C10H18O | 154.3 | Terpene | 1 | 3 | 3 |
| (E)-Beta-Famesene | 018794-84-8 | C15H24 | 204.4 | Flavor/Fragrance | 1 | 2 | 2 |
| Aromandendrene | 000489-39-4 | C15H24 | 204.4 | Terpene | 1 | 2 | 2 |
| Butylated hydroxytoluene | 000128-37-0 | C15H24O | 220.4 | Precervative | 1 | 2 | 2 |
| Citronellol | 000106-22-9 | C10H20O | 156.3 | Flavor/Fragrance | 1 | 2 | 1 |
| Eudesma-4(14),11-diene | 058893-88-2/17066-67-0 | C15H24 | 204.4 | Terpene | 1 | 2 | 3 |
| Farnesol | 004602-84-0 | C15H26O | 222.4 | Terpene/Flavor/Fragrance/Cosmetic | 1 | 2 | x |
| p-Camphorene | 020016-72-2/000532-87-6 | C20H32 | 272.5 | Terpene | 1 | 2 | x |
| l-Menthone | 000089-80-5 | C10H18O | 154.3 | Flavor/Fragrance | 1 | 1 | 1 |
| (E,Z)-Alloocimene | 007216-56-0 | C10H16 | 136.2 | Flavor/Fragrance | 1 | 1 | 3 |
| Alpha-Cubebene/(-)-Alpha-Cubebene | 017699-14-8 | C15H24 | 204.4 | Terpene | 1 | 1 | 3 |
| Alpha-Gurjunene | 000489-40-7 | C15H24 | 204.4 | Fragrance | 1 | 1 | 3 |
| Benzyl alcohol | 000100-51-6 | C7H8O | 108.1 | Flavor enhancer/Precervative | 1 | 1 | x |
| Beta-Panasinsene | 997220-91-1/56684-97-0 | C15H24 | 204.4 | Terpene | 1 | 1 | 1 |
| D-Carvone | 002244-16-8 | C10H14O | 150.2 | Terpene/Flavor/Fragrance | 1 | 1 | 1 |
| Trans-Alpha-Bergamotene | 013474-59-4 | C15H24 | 204.4 | Terpene | 1 | 1 | 1 |
| Beta-Amyrin | 000559-70-6 | C30H50O | 426.7 | Terpene | 1 | x | x |
| Calamenene/Cis-Calamenene | 072937-55-4 | C15H22 | 202.3 | Terpene | 1 | x | 1 |
| Cetene | 000629-73-2 | C16H32 | 224.4 | Terpene | 1 | x | x |
| Gamma-Cadinene/Gamma-Muurolene | 030021-74-0 | C15H24 | 204.4 | Terpene | 1 | x | 3 |
| Methyl salicylate | 000119-36-8 | C8H8O3 | 152.1 | Terpene/Flavor/Fragrance | 1 | x | x |
| Trans-Verbenol | 001820-09-3 | C10H16O | 152.2 | Flavor/Fragrance | 1 | x | x |
| Triacetin | 000102-76-1 | C9H14O6 | 218.2 | Flavor/Biocide | 1 | x | x |
| Viridiflorene | 021747-46-6 | C15H24 | 204.4 | Terpene | 1 | x | x |
| 3-Methylcyclopentyl acetate | 024070-70-0/035897-13-3 | C8H14O2 | 142.2 | Terpene | x | 6 | x |
| Epi-γ-Eudesmol | 117066-77-0 | C15H26O | 222.4 | Terpene | x | 6 | 2 |
| Piperitenone | 000491-09-8 | C10H14O | 150.2 | Terpene/Flavor/Fragrance | x | 6 | 3 |
| Caryophylla-4(12),8(13)-dien-5.beta.-ol | 019431-80-2 | C15H24O | 220.4 | Flavoring agents | x | 5 | 1 |
| Perhydrofarnesyl Acetone/Hexahydrofarnesyl Acetone | 000502-69-2 | C18H36O | 268.5 | Flavor/Fragrance | x | 5 | x |
| Humulene oxide II | 019888-34-7 | C15H24O | 220.4 | Terpene | x | 5 | 1 |
| Geraniol | 000106-24-1 | C10H18O | 154.3 | Terpene | x | 4 | x |
| Rotundifolone/Piperitenone oxide | 003564-96-3 | C10H14O2 | 166.2 | Natural extract?? | x | 4 | 2 |
| Trans-Calamenene | 073209-42-4 | C15H22 | 202.3 | Terpene | x | 4 | x |
| Beta-selinene | 017066-67-0 | C15H24 | 204.4 | Terpene | x | 3 | 3 |
| Camphene | 000079-92-5 | C10H16 | 136.2 | Terpene/Flavor/Fragrance | x | 3 | 5 |
| Methyl heptenone | 000110-93-0 | C8H14O | 126.2 | Flavor/Fragrance | x | 3 | x |
| p-Mentha-1,5,8-triene | 021195-59-5 | C10H14 | 134.2 | Terpene | x | 3 | 1 |
| Alpha-Bisabolene/(E)-Alpha-Bisabolene | 025532-79-0 | C15H24 | 204.4 | Flavor/Fragrance | x | 2 | x |
| Alpha-Guaiene | 003691-12-1 | C15H24 | 204.4 | Terpene/Flavor/Fragrance | x | 2 | 2 |
| Calarene/(+)-Calarene | 017334-55-3 | C15H24 | 204.4 | Terpene | x | 2 | x |
| Bicyclo[7.2.0]undec-3-ene, 4,11,11-trimethyl-8-methylene- | 889360-49-0 | C15H24 | 204.4 | Terpene | x | 2 | 2 |
| Cherry propanol | 001197-01-9 | C10H14O | 150.2 | Flavor/Fragrance | x | 2 | 2 |
| Cis-Beta-Farnesene | 028973-97-9 | C15H24 | 204.4 | Terpene | x | 2 | 1 |
| Bicyclo[7.2.0]undecane, 10,10-dimethyl-2,6-bis(methylene)- | 357414-37-0 | C15H24 | 204.4 | Terpene | x | x | 6 |
| O-Cymene | 000527-84-4 | C10H14 | 134.2 | Terpene/Flavor/Fragrance | x | x | 4 |
| Eudesma-4,6-diene | 028624-28-4 | C15H24 | 204.4 | Terpene | x | 2 | x |
| Gamma-Terpinene | 000099-85-4 | C10H16 | 136.2 | Terpene/Flavor/Fragrance | x | 2 | 3 |
| Gamma-Terpineol | 000586-81-2 | C10H18O | 154.3 | Terpene | x | 2 | 1 |
| Humulenol-II | 019888-00-7 | C15H24O | 220.4 | Terpene | x | 2 | 1 |
| Isocaryophyllene | 000118-65-0 | C15H24 | 204.4 | Terpene | x | 2 | x |
| Tricyclene | 000508-32-7 | C10H16 | 136.2 | Flavor/Fragrance | x | 2 | 1 |
| Ylangene | 014912-44-8 | C15H24 | 204.4 | Terpene | x | 2 | 2 |
| 1,3,8-p-Menthatriene | 018368-95-1 | C10H14 | 134.2 | Flavoring | x | 1 | 3 |
| 1,8-menthadien-4-ol | 997077-81-3 | C10H16O | 152.2 | Terpene?? | x | 1 | x |
| 3-Thujene | 002867-05-2 | C10H16 | 136.2 | Terpene | x | 1 | x |
| 6,9-Guaiadene | 036577-33-0 | C15H24 | 204.4 | Flavor/Fragrance | x | 1 | x |
| Alpha-Curcumene | 000644-30-4 | C15H22 | 202.3 | Terpene | x | 1 | x |
| Alpha-Himachalene | 003853-83-6 | C15H24 | 204.4 | Terpene | x | 1 | x |
| Alpha-Panasinsen/(-)-Alpha-Panasinsen | 056633-28-4 | C15H24 | 204.4 | Terpene | x | 1 | x |
| Alpha-Terpinene | 000099-86-5 | C10H16 | 136.2 | Terpene/Flavor/Fragrance | x | 1 | 1 |
| aR-Himachalene | 019419-67-1 | C15H22 | 202.3 | Terpene | x | 1 | 1 |
| Benzophenone | 000119-61-9 | C13H10O | 182.2 | Flavor/Fragrance | x | 1 | x |
| Beta-Fenchol/(-)-Beta-Fenchol | 000470-08-6 | C10H18O | 154.3 | Terpene | x | 1 | x |
| Myrtenol/(-)-Myrtenol | 019894-97-4 | C10H16O | 152.2 | Terpene/Flavor/Fragrance | x | 1 | x |
| Beta-Patchoulene | 000514-51-2 | C15H24 | 204.4 | Fragrance/Perfuming | x | 1 | 1 |
| Beta-Vetivenene | 027840-40-0 | C15H24 | 204.4 | Terpene | x | 1 | x |
| Cubenene | 029837-12-5 | C15H24 | 204.4 | Terpene | x | 1 | 1 |
| Caryophyllene-(I1) | 136296-37-2 | C15H24 | 204.4 | Terpene | x | 1 | x |
| Caryophyllenyl alcohol | 913176-41-7 | C14H24O | 222.4 | Flavor/Fragrance | x | 1 | x |
| Cis-8-Methylbicyclo[4.3.0]non-7-ene | 057497-08-2 | C10H16 | 136.2 | Terpene | x | 1 | x |
| Clovanediol | 002649-64-1 | C15H26O2 | 238.4 | Terpene | x | 1 | x |
| Delta-Cadinene | 000483-76-1 | C15H24 | 204.4 | Terpene | x | 1 | 3 |
| Dihydrocarvyl acetate | 020777-49-5 | C12H20O2 | 196.3 | Flavor/Fragrance | x | 1 | 1 |
| Eugenol | 000097-53-0 | C10H12O2 | 164.2 | Cosmetic/Flavor/Fragrance | x | 1 | 1 |
| Gamma-Gurjunene | 022567-17-5 | C15H24 | 204.4 | Terpene | x | 1 | x |
| Gamma-Maalinene | 020071-49-2 | C15H24 | 204.4 | Terpene | x | 1 | 1 |
| Geranyl Acetone | 003796-70-1 | C13H22O | 194.3 | Flavor/Fragrance | x | 1 | x |
| Humulene epoxide I | 019888-33-6 | C15H24O | 220.4 | Terpene | x | 1 | 1 |
| Isobornyl Acrylate | 005888-33-5 | C13H20O2 | 208.3 | Film forming | x | 1 | 2 |
| Lavandulyl propionate | 059550-34-4 | C13H22O2 | 210.3 | Terpene | x | 1 | x |
| Menthyl acetate | 000089-48-5/002623-23-6 | C12H22O2 | 198.3 | Flavor/Fragrance | x | 1 | 1 |
| Methyl salicylate | 000119-36-8 | C8H8O3 | 152.1 | Terpene/Flavor/Fragrance | x | 1 | 1 |
| Olivetol | 000500-66-3 | C11H16O2 | 180.2 | Natural extract | x | 1 | x |
| Phytol acetate | 076337-16-1/010236-16-5 | C22H42O2 | 338.6 | Flavor/Fragrance | x | 1 | x |
| Pseudolimonene | 000499-97-8 | C10H16 | 136.2 | Terpene | x | 1 | 1 |
| Schyobunol | 035727-45-8 | C15H26O | 222.4 | Terpene | x | 1 | x |
| Selin-6-en-4.alpha.-ol | 118173-08-3 | C15H26O | 222.4 | Terpene | x | 1 | x |
| Tetrahydrogeranyl Acetone | 001604-34-8 | C13H26O | 198.3 | Flavor/Fragrance | x | 1 | x |
| Trans-Farnesol | 000106-28-5 | C15H26O | 222.4 | Terpene/Flavor/Fragrance | x | 1 | x |
| Zonarene | 041929-05-9 | C15H24 | 204.4 | Terpene | x | 1 | x |
| O-Cymene | 000527-84-4 | C10H14 | 134.2 | Terpene/Flavor/Fragrance | x | x | 4 |
| Trans-Beta-Ocimene | 003779-61-1 | C10H16 | 136.2 | Terpene/Flavor/Fragrance | x | x | 2 |
| Beta-Bisabolene | 000495-61-4 | C15H24 | 204.4 | Flavor/Fragrance | x | x | 2 |
| Cis-2,6-Dimethyl-2,6-octadiene | 002492-22-0 | C10H18 | 138.3 | Terpene | x | x | 2 |
| Beta-Bourbonene/(-)-Beta-Bourbonene | 005208-59-3 | C15H24 | 204.4 | Flavor/Fragrance | x | x | 1 |
| Myrtenol/(-)-Myrtenol | 019894-97-4 | C10H16O | 152.2 | Terpene/Flavor/Fragrance | x | x | 1 |
| Selina-5,11-diene/(-)-Selina-5,11-diene | 997220-96-1 | C15H24 | 204.4 | Terpene | x | x | 1 |
| Carvomenthene/(+)-Carvomenthene | 001195-31-9 | C10H18 | 138.3 | Terpene | x | x | 1 |
| Menthol/(±)-menthol | 001490-04-6 | C10H22O | 156.3 | Terpene/Flavor/Fragrance | x | x | 1 |
| 4-Terpinenol | 000562-74-3 | C10H18O | 154.3 | Flavor/Fragrance | x | x | 1 |
| 8,9-Dehydrothymol | 018612-99-2 | C10H12O | 148.2 | Terpene | x | x | 1 |
| Alpha-Bergamotene | 017699-05-7 | C15H24 | 204.4 | Terpene | x | x | 1 |
| Alpha-Elemene | 005951-67-7 | C15H24 | 204.4 | Terpene | x | x | 1 |
| Alpha-Phellandrene | 000099-83-2 | C10H16 | 136.2 | Terpene/Flavor/Fragrance | x | x | 1 |
| Beta-Cubebene | 013744-15-5 | C15H24 | 204.4 | Flavoring | x | x | 1 |
| Beta-Gurjunene | 997220-72-3/73464-47-8 | C15H24 | 204.4 | Terpene | x | x | 1 |
| Cadina-1(6),4-diene | 016729-00-3 | C15H24 | 204.4 | Terpene | x | x | 1 |
| Cyperene | 002387-78-2 | C15H24 | 204.4 | Terpene | x | x | 1 |
| Eremophilene | 010219-75-7 | C15H24 | 204.4 | Terpene | x | x | 1 |
| (R)-Gamma-Cadinene | 039029-41-9 | C15H24 | 204.4 | Terpene | x | x | 1 |
| Isopinocamphone | 018358-53-7 | C10H16O | 152.2 | Flavor/Fragrance | x | x | 1 |
| Isoterpinolene | 000586-63-0 | C10H16 | 136.2 | Terpene | x | x | 1 |
| Laevo-Bornyl acetate | 005655-61-8 | C12H20O2 | 196.3 | Flavor/Fragrance | x | x | 1 |
| L-Alpha-Terpineol | 010482-56-1 | C10H18O | 154.2 | Terpene | x | x | 1 |
| Trans-Isolimonene | 005113-87-1 | C10H16 | 136.2 | Terpene | x | x | 1 |
a
Number of samples where each compound was detected.