Tri  [  a  ]	Nummer
Tri	14 / 10 / 9 / 18 / 19a / # (19c)
Tri-acetonamin	2
Gemisch aus :  Tri-acontan verzweigt   U N D   Dotriacontan verzweigt  UND  Tetratriacontan verzweigt  UND  Hexatria- contan verzweigt	xxx
1,3,5-Tri-acryloyl-hexahydro-s-triazin	16 / # (19c)
Tri-adimefon	16 / 18
Tri-adimenol	16
Tri-alkyl-amine, Tri-alkanol-amine und deren Salze	xxx
Tri-alkyl-borane	2
Tri-allat	4 / 18 / 19
Tri-allyl-amin	2
Tri-allyl-borat	16
Tri-allyl-cyanurat	7 / 18
Tri-allyl-phosphat	16
Tri-amifos	14 / 19
2,4,4’-Tri-amino-biphenyl	16
sym-Tri-amino-triazin	16 / # (19a)
1,3,5-Tri-amino-2,4,6-tri-nitrobenzol	3 / 16
sym-Tri-amino-tri-nitrobenzol
4,4’,4’’-Tri-amino-tri-phenyl-methan	16 / 19a
Tri-amiphos	14 / 19
Tri-ammonium-citrat	16
Tri-amteren	15 / 16
Tri-amyl-amin	11
Tri-n-amylamin	xxx
Tri-n-amylborat	16
Tri-apenthenol
Tri-arimol
Tri-asulfuron	14
1,5,7-Tri-aza-bicyclo-[4.4.0]-dec-5-en	2
1,5,9-Tri-azacycl-ododecan
1,4,7-Tri-azacycl-ononan
3,6,9-Tri-azaun-decan-1,11-diamin	2 / 18
Tri-azichinon	16 / # (19a+c)
1,3,5-Tri-azin-2,4,6-trithiol	16 / 18
1,3,5-Tri-azin-2,4,6-trithiol Trinatriumsalz	2
Tri-azin-triyl-tri-imino-tri-hexansäure	xxx
1,2,4-Tri-azol	16 / # (19b)
1,2,4-Tri-azol Natriumsalz	16 / # 6 Augen
Tri-azolam	17
1,2,4-Tri-azol-3-thiol	16
1,2,4-Triazol-3-yl-amin	14 / 19 / # (19a+b) / Über AGW 19b
Tri-azophos	4 / 18 / 19
Tri-azoxid	16