• 1,2,2-trichloro-1,1-difluoroethane
• 354-21-2
• C₂HCl₃F₂
• 

• 1,2,2-triphenylethenylbenzene
• 632-51-9
• C₂₆H₂₀
• 

• 1,2,3,3-tetramethylindol-1-ium
• 5418-63-3
• C₁₂H₁₆IN
• 

• 1,2,3,3a,4,5-hexahydroacenaphthylene
• 26761-12-6
• C₁₂H₁₄
• 

• 1,2,3,4,4a,5,6,7,8,8a-decahydroisoquinoline
• 6329-61-9
• C₉H₁₇N
• 

• 1,2,3,4,4a,5,6,7,8,8a-decahydronaphthalen-2-ol
• 825-51-4
• C₁₀H₁₈O
• 

• 1,2,3,4,4a,5,6,7,8,8a-decahydronaphthalene
• 493-01-6
• C₁₀H₁₈
• 

• 1,2,3,4,4a,5,6,7,8,8a-decahydronaphthalene
• 493-02-7
• C₁₀H₁₈
• 

• 1,2,3,4,4a,5,6,7,8,8a-decahydroquinoline
• 2051-28-7
• C₉H₁₇N
• 

• 1,2,3,4,5,6,7,8,9,10,11,12-dodecadeuteriobenzo[a]anthracene
• 1718-53-2
• C₁₈H₁₂
• 

• 1,2,3,4,5,6,7,8,9,10,11,12-dodecadeuteriobenzo[a]pyrene
• 63466-71-7
• C₂₀H₁₂
• 

• 1,2,3,4,5,6,7,8,9,10,11,12-dodecadeuteriochrysene
• 1719-03-5
• C₁₈H₁₂
• 

• 1,2,3,4,5,6,7,8,9,10,11,12-dodecadeuterioperylene
• 1520-96-3
• C₂₀H₁₂
• 

• 1,2,3,4,5,6,7,8,9,10-decadeuterioanthracene
• 1719-06-8
• C₁₄H₁₀
• 

• 1,2,3,4,5,6,7,8,9,10-decadeuteriobenzo[b][1]benzazepine-11-carboxamide
• 132183-78-9
• C₁₅H₁₂N₂O
• 

• 1,2,3,4,5,6,7,8,9,10-decadeuteriofluoranthene
• 93951-69-0
• C₁₆H₁₀
• 

• 1,2,3,4,5,6,7,8,9,10-decadeuteriophenanthrene
• 1517-22-2
• C₁₄H₁₀
• 

• 1,2,3,4,5,6,7,8,9,9-decadeuteriofluorene
• 81103-79-9
• C₁₃H₁₀
• 

• 1,2,3,4,5,6,7,8-octachloronaphthalene
• 2234-13-1
• C₁₀Cl₈
• 

• 1,2,3,4,5,6,7,8-octadeuterioacenaphthylene
• 93951-97-4
• C₁₂H₈
• 

• 1,2,3,4,5,6,7,8-octafluoronaphthalene
• 313-72-4
• C₁₀F₈
• 

• 1,2,3,4,5,6,7,8-octahydrophenanthrene
• 5325-97-3
• C₁₄H₁₈
• 

• 1,2,3,4,5,6,7-heptadeuterio-8-(trideuteriomethyl)naphthalene
• 38072-94-5
• C₁₁H₁₀
• 

• 1,2,3,4,5,6-hexabromobenzene
• 87-82-1
• C₆Br₆
• 

• 1,2,3,4,5,6-hexabromocyclohexane
• 1837-91-8
• C₆H₆Br₆
• 

• 1,2,3,4,5,6-hexadeuteriobenzene
• 1076-43-3
• C₆H₆
• 

• 1,2,3,4,5,6-hexaethylbenzene
• 604-88-6
• C₁₈H₃₀
• 

• 1,2,3,4,5,6-hexafluorobenzene
• 392-56-3
• C₆F₆
• 

• 1,2,3,4,5,6-hexakis(bromomethyl)benzene
• 3095-73-6
• C₁₂H₁₂Br₆
• 

• 1,2,3,4,5,6-hexakis-phenylbenzene
• 992-04-1
• C₄₂H₃₀
• 

• 1,2,3,4,5,6-hexamethylbenzene
• 87-85-4
• C₁₂H₁₈
• 

• 1,2,3,4,5,6-hexamethylbicyclo[2.2.0]hexa-2,5-diene
• 7641-77-2
• C₁₂H₁₈
• 

• 1,2,3,4,5-Pentaphenyl-1'-(di-tert-butylphosphino)ferrocene
• 312959-24-3
• C48H47FeP
• 

• 1,2,3,4,5-pentabromo-6-(2,3,4,5,6-pentabromophenoxy)benzene
• 1163-19-5
• C₁₂Br₁₀O
• 

• 1,2,3,4,5-pentabromo-6-[2-(2,3,4,5,6-pentabromophenyl)ethyl]benzene
• 84852-53-9
• C₁₄H₄Br₁₀
• 

• 1,2,3,4,5-pentabromo-6-ethylbenzene
• 85-22-3
• C₈H₅Br₅
• 

• 1,2,3,4,5-pentabromo-6-methylbenzene
• 87-83-2
• C₇H₃Br₅
• 

• 1,2,3,4,5-pentachloro-6-(2,4,6-trichlorophenyl)benzene
• 74472-52-9
• C₁₂H₂Cl₈
• 

• 1,2,3,4,5-pentachloro-6-(trifluoromethyl)benzene
• 384-83-8
• C₇Cl₅F₃
• 

• 1,2,3,4,5-pentachloro-6-[(2,3,4,5,6-pentachlorophenyl)disulfanyl]benzene
• 22441-21-0
• C₁₂Cl₁₀S₂
• 

• 1,2,3,4,5-pentadeuterio-6-(1,1,2,2,2-pentadeuterioethyl)benzene
• 25837-05-2
• C₈H₁₀
• 

• 1,2,3,4,5-pentadeuterio-6-(1,2,2,
  2-tetradeuterio-1-deuteriooxyethyl)benzene
• 219586-41-1
• C₈H₁₀O
• 

• 1,2,3,4,5-pentadeuterio-6-(2,3,4,5,6-pentadeuteriophenyl)benzene
• 1486-01-7
• C₁₂H₁₀
• 

• 1,2,3,4,5-pentadeuterio-6-(trideuteriomethoxy)benzene
• 54887-54-6
• C₇H₈O
• 

• 1,2,3,4,5-pentadeuterio-6-(trideuteriomethyl)benzene
• 2037-26-5
• C₇H₈
• 

• 1,2,3,4,5-pentadeuterio-6-[2,3,5,6-tetradeuterio-4-(2,3,4,5,
  6-pentadeuteriophenyl)phenyl]benzene
• 1718-51-0
• C₁₈H₁₄
• 

• 1,2,3,4,5-pentadeuterio-6-fluorobenzene
• 1423-10-5
• C₆H₅F
• 

• 1,2,3,4,5-pentafluoro-6-(2,3,4,5,6-pentafluorophenyl)benzene
• 434-90-2
• C₁₂F₁₀
• 

• 1,2,3,4,5-pentafluoro-6-(trifluoromethyl)benzene
• 434-64-0
• C₇F₈
• 

• 1,2,3,4,5-pentafluoro-6-iodobenzene
• 827-15-6
• C₆F₅I
• 

• 1,2,3,4,5-pentafluoro-6-isothiocyanatobenzene
• 77977-73-2
• C₇F₅NS
• 

• 1,2,3,4,5-pentafluoro-6-nitrobenzene
• 880-78-4
• C₆F₅NO₂
• 

• 1,2,3,4,5-pentafluoro-6-phenylbenzene
• 784-14-5
• C₁₂H₅F₅
• 

• 1,2,3,4,5-pentafluoro-6-prop-2-enylbenzene
• 1736-60-3
• C₉H₅F₅
• 

• 1,2,3,4,5-pentafluorobenzene
• 363-72-4
• C₆HF₅
• 

• 1,2,3,4,5-pentamethylbenzene
• 700-12-9
• C₁₁H₁₆
• 

• 1,2,3,4,5-pentamethylcyclopenta-1,3-diene
• 4045-44-7
• C₁₀H₁₆
• 

• 1,2,3,4,6,7,8,8a-octahydropyrrolo[1,2-a]pyrazine
• 5654-83-1
• C₇H₁₄N₂
• 

• 1,2,3,4,7,7-hexachlorobicyclo[2.2.1]hept-2-ene-5,6-dicarboxylic acid
• 115-28-6
• C₉H₄Cl₆O₄
• 

• 1,2,3,4-TETRAHYDRO-ISOQUINOLINE-3-CARBOXYLIC ACID METHYL ESTER HYDROCHLORIDE
• 57060-88-5
• C11H14ClNO2
• 

• 1,2,3,4-Tetra-O-acetyl-6-O-triphenylmethyl-beta-D-glucopyranose
• 37074-90-1
• C33H34O10
• 

• 1,2,3,4-Tetrahydro-quinoline-2-carboxylic acidmethyl ester
• 63430-79-5
• C11H13NO2
• 

• 1,2,3,4-tetrabromo-5-(2,3,4,5-tetrabromophenoxy)benzene
• 32536-52-0
• C₁₂H₂Br₈O
• 

• 1,2,3,4-tetrabromobutane
• 1529-68-6
• C₄H₆Br₄
• 

• 1,2,3,4-tetrachloro-5,5-dimethoxycyclopenta-1,3-diene
• 2207-27-4
• C₇H₆Cl₄O₂
• 

• 1,2,3,4-tetrachloro-5-(2,3,4-trichlorophenyl)benzene
• 35065-30-6
• C₁₂H₃Cl₇
• 

• 1,2,3,4-tetrachloro-5-(2,4,5-trichlorophenyl)benzene
• 35065-29-3
• C₁₂H₃Cl₇
• 

• 1,2,3,4-tetrachloro-5-(2,4-dichlorophenyl)benzene
• 35694-06-5
• C₁₂H₄Cl₆
• 

• 1,2,3,4-tetrachloro-5-(3,4-dichlorophenyl)benzene
• 38380-08-4
• C₁₂H₄Cl₆
• 

• 1,2,3,4-tetrachloro-5-(4-chlorophenyl)benzene
• 74472-37-0
• C₁₂H₅Cl₅
• 

• 1,2,3,4-tetradeuterio-5,6-bis(trideuteriomethyl)benzene
• 56004-61-6
• C₈H₁₀
• 

• 1,2,3,4-tetradeuterio-5-deuteriooxy-6-(trideuteriomethyl)benzene
• 203645-65-2
• C₇H₈O
• 

• 1,2,3,4-tetrafluoro-5,6-diiodobenzene
• 2708-97-6
• C₆F₄I₂
• 

• 1,2,3,4-tetrafluoro-5-nitrobenzene
• 5580-79-0
• C₆HF₄NO₂
• 

• 1,2,3,4-tetrafluorobenzene
• 551-62-2
• C₆H₂F₄
• 

• 1,2,3,4-tetrahydro-1-benzazepin-5-one
• 1127-74-8
• C₁₀H₁₁NO
• 

• 1,2,3,4-tetrahydroacridin-9-amine
• 321-64-2
• C₁₃H₁₄N₂
• 

• 1,2,3,4-tetrahydrocyclopenta[b]indole
• 2047-91-8
• C₁₁H₁₁N
• 

• 1,2,3,4-tetrahydroisoquinolin-2-ium-6,7-diol
• 52768-23-7
• C₉H₁₂NO₂⁺
• 

• 1,2,3,4-tetrahydroisoquinolin-6-ol
• 14446-24-3
• C₉H₁₁NO
• 

• 1,2,3,4-tetrahydroisoquinoline
• 91-21-4
• C₉H₁₁N
• 

• 1,2,3,4-tetrahydroisoquinoline-1-carboxylic acid
• 41034-52-0
• C₁₀H₁₁NO₂
• 

• 1,2,3,4-tetrahydroisoquinoline-3-carboxamide
• 112794-29-3
• C₁₀H₁₂N₂O
• 

• 1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid
• 41994-51-8
• C₁₀H₁₂ClNO₂
• 

• 1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid
• 67123-97-1
• C₁₀H₁₁NO₂
• 

• 1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid
• 35186-99-3
• C₁₀H₁₁NO₂
• 

• 1,2,3,4-tetrahydroisoquinoline-5-carbonitrile
• 215794-24-4
• C₁₀H₁₀N₂
• 

• 1,2,3,4-tetrahydroisoquinoline-7-carbonitrile
• 149355-52-2
• C₁₀H₁₀N₂
• 

• 1,2,3,4-tetrahydronaphthalen-1-amine
• 49800-23-9
• C₁₀H₁₄ClN
• 

• 1,2,3,4-tetrahydronaphthalen-1-amine
• 2217-40-5
• C₁₀H₁₃N
• 

• 1,2,3,4-tetrahydronaphthalen-1-ol
• 529-33-9
• C₁₀H₁₂O
• 

• 1,2,3,4-tetrahydronaphthalen-2-amine
• 2954-50-9
• C₁₀H₁₃N
• 

• 1,2,3,4-tetrahydronaphthalene
• 119-64-2
• C₁₀H₁₂
• 

• 1,2,3,4-tetrahydronaphthalene-1-carbonitrile
• 56536-96-0
• C₁₁H₁₁N
• 

• 1,2,3,4-tetrahydronaphthalene-1-carboxylic acid
• 1914-65-4
• C₁₁H₁₂O₂
• 

• 1,2,3,4-tetrahydroquinolin-6-ol
• 3373-00-0
• C₉H₁₁NO
• 

• 1,2,3,4-tetrahydroquinolin-7-ol
• 58196-33-1
• C₉H₁₁NO
• 

• 1,2,3,4-tetrahydroquinolin-8-ol
• 6640-50-2
• C₉H₁₁NO
• 

• 1,2,3,4-tetrahydroquinoline
• 635-46-1
• C₉H₁₁N
• 

• 1,2,3,4-tetrahydroquinoline-2-carboxylic acid
• 63430-98-8
• C₁₀H₁₂ClNO₂
•