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Chemical Name CAS Number Signal Word
1,2-dihydro-1,5-dimethyl-2-(p-tolyl)-3H-pyrazol-3-one (EC: 260-175-6) 56430-08-1 Warning
1,2-dihydro-1,5-dimethyl-4-(methylamino)-2-phenyl-3H-pyrazol-3-one (EC: 208-281-3) 519-98-2 Warning
1,2-DIHYDRO-1-METHYL-2-PHENYL-3,6-PYRIDAZINEDIONE (EC: 654-274-7) 13817-74-8 Warning
1,2-DIHYDRO-1-METHYL-2-PHENYLQUINOLINE (EC: 660-404-3) 887-94-5 Warning
1,2-dihydro-1-methyl-5H-tetrazole-5-thione (EC: 236-132-2) 13183-79-4 Warning
1,2-dihydro-1-phenyl-3H-1,2,4-triazole-3-thione (EC: 244-386-0) 21434-14-0 Warning
1,2-dihydro-1-(p-hydroxyphenyl)-5H-tetrazole-5-thione (EC: 257-909-2) 52431-78-4 Warning
1,2-dihydro-2,2,4-trimethylquinoline (EC: 205-688-8) 147-47-7 Warning
1,2-DIHYDRO-2-(2,5-XYLYL)-4(3H)-QUINAZOLINONE (EC: 653-774-2) 83800-95-7 Warning
1,2-DIHYDRO-2-(2-NITROPHENYL)-4(3H)-QUINAZOLINONE (EC: 653-897-1) 16313-85-2 Warning
1,2-DIHYDRO-2-(3,4,5-TRIMETHOXYPHENYL)-4(3H)-QUINAZOLINONE (EC: 653-575-0) 13165-12-3 Warning
1,2-DIHYDRO-2-(3,4-(METHYLENEDIOXY)-PHENYL)-4(3H)-QUINAZOLINONE (EC: 653-898-7) 61195-17-3 Danger
1,2-DIHYDRO-2-(4-METHOXYPHENYL)-4(3H)-QUINAZOLINONE (EC: 664-925-7) 61195-16-2 Warning
1,2-dihydro-2-[6-(4-morpholinyl)-4-pyrimidinyl]-4-(1H-1,2,3-triazol-1-yl)-3H-pyrazol-3-one (EC: 815-038-0) 1154028-82-6 Danger
1,2-dihydro-2,7-naphthyridin-1-one (EC: 835-769-9) 67988-50-5 Warning
1,2-DIHYDRO-2-DIPHENYLMETHYL-4(3H)-QUINAZOLINONE (EC: 653-900-6) 18964-21-1 Warning
1,2-Dihydro(²H₁₀)acenaphthylene (EC: 680-467-0) 15067-26-2 Warning
1,2-DIHYDRO-2-(META-TOLYL)-4(3H)-QUINAZOLINONE (EC: 653-772-1) 83800-93-5 Warning
1,2-DIHYDRO-2-METHYL-1-OXO-3-ISOQUINOLINEBUTYRIC ACID (EC: 118-719-4) 198069-08-8 Danger
1,2-dihydro-2-naphthalenecarboxylic acid (EC: 114-157-9) 3408-30-8 Warning
1,2-dihydro-2-oxo-3-pyridyl acetate (EC: 262-698-5) 61296-14-8 Warning
1,2-Dihydro-2-oxo-3-quinolinecarboxaldehyde (EC: 804-534-2) 91301-03-0 Warning
1,2-Dihydro-2-oxo-6-(trifluoromethyl)pyridine-3-carbonitrile (EC: 692-466-2) 116548-04-0 Warning
1,2-dihydro-2-oxonicotinic acid (EC: 210-198-2) 609-71-2 Warning
1,2-dihydro-2-oxoquinoline-4-carboxylic acid (EC: 239-827-9) 15733-89-8 Warning
1,2-DIHYDRO-2-(P-TOLYL)-4(3H)-QUINAZOLINONE (EC: 653-901-1) 13324-79-3 Warning
1,2-dihydro-3,4,5,6-tetraphenylphthalic anhydride (EC: 230-197-0) 6971-41-1 Warning
1,2-DIHYDRO-3,6-DIOXO-1-PYRIDAZINEPROPIONITRILE (EC: 654-209-2) 17285-16-4 Warning
1,2-dihydro-3H-1,2,4-triazol-3-one (EC: 213-214-6) 930-33-6 Danger
1,2-dihydro-3H-indazol-3-one (EC: 230-904-2) 7364-25-2 Warning
1,2-DIHYDRO-4,6-DIMETHYL-1-FURFURYLIDENEAMINO-2-OXONICOTINONITRILE (EC: 654-440-9) Danger
1,2-DIHYDRO-4,6-DIMETHYL-2-OXO-1-(VANILLYLIDENEAMINO)NICOTINONITRILE (EC: 653-500-1) Danger
1,2-dihydro-4-(isopropylamino)-1,5-dimethyl-2-phenyl-3H-pyrazol-3-one monohydrochloride (EC: 242-222-2) 18342-39-7 Warning
1',2'-dihydro-4'-methyl-6'-oxido-2'-oxo-1,3'-bipyridinium (EC: 271-295-3) 68532-86-5
1,2-dihydro-6-hydroxy-1,4-dimethyl-2-oxo-5-[[3-[(phenylsulphonyl)oxy]phenyl]azo]nicotinonitrile (EC: 261-693-5) 59312-61-7
1,2-dihydro-6-hydroxy-4-methyl-1-[3-(1-methylethoxy)propyl]-2-oxo-3-pyridinecar... 68612-94-2 Warning
1,2-dihydro-6-hydroxy-4-methyl-2-oxonicotinonitrile (EC: 226-639-7) 5444-02-0 Warning
1,2-dihydro-6-methyl-2-oxonicotinonitrile (EC: 224-202-5) 4241-27-4 Warning
1,2-dihydro-6-nitro-3H-indazol-3-one (EC: 230-905-8) 7364-33-2 Danger
1,2-dihydroacenaphthylen-1-one (EC: 878-480-3) 2235-15-6 Warning
(1,2-dihydroacenaphthylen-5-yl)hydrazine hydrochloride (EC: 864-957-3) 2225143-99-5 Warning
1,2-dihydronaphthalene (EC: 207-183-8) 447-53-0 Warning
1,2-dihydropyridazine-3,6-dione, monopotassium salt (EC: 249-000-4) 28382-15-2
1,2-dihydropyridazine-3,6-dione, potassium salt (EC: 257-261-0) 51542-52-0
1,2-dihydroquinazolin-2-one (EC: 852-418-5) 7471-58-1 Warning
1,2-dihydrospiro[3,1-benzoxazine-4,4'-piperidine]-2-one hydrochloride (EC: 842-076-5) 85732-37-2 Warning
1',2'-dihydrospiro[azetidine-3,3'-indole]-2'-one; trifluoroacetic acid (EC: 892-546-9) 2230807-54-0 Warning
1',2'-dihydrospiro[azetidine-3,4'-[3,1]benzoxazine]-2'-one trifluoroacetate (EC: 845-239-9) 2309454-84-8 Warning
1',2'-dihydrospiro[azetidine-3,4'-pyrido[2,3-d][1,3]oxazine]-2'-one; trifluoroacetic acid (EC: 987-672-7) 2866307-96-0 Warning
1',2'-dihydrospiro[cyclobutane-1,3'-indole]-2',3-dione (EC: 974-205-7) 1603068-17-2 Warning