ID	CAS	Name	Synonyms	Molecular Formula	Category
1	7554-65-6	Fomepizole	Fomepizole AKOS B014452 4-Methylpyrazol 4-METHYLPYRAZOLE 4-methyl-pyrazol 4-Methylpyrazole 4-METHYLPYRRAZOLE Pyrazole, 4-methyl- 4-Methyl-1H-pyrazole 4-methyl-1H-pyrazole 1H-Pyrazole, 4-methyl-	C4H6N2	F;None;C3 to C5;Heterocycli;Cell Biology;Building Blocks;Chemical Synthesis;Bioactive Small Molecules;Imidazoles, Pyrroles, Pyrazoles, Pyrrolidines
2	765-39-9	1-Aminopyrrole	LHTE 1-pyrrolamine pyrrol-1-amine 1-Aminopyrrole PYRROL-2-AMINE 1-AMINOPYRROLE pyrrol-1-ylamine 1H-pyrrol-1-amine 1H-Pyrrol-1-amine 1-Amino-1H-pyrrole	C4H6N2	Intermediates;Functional Materials;Pharmaceutical intermediates;Reagents for Conducting Polymer Research;Pyrroles (for Conduting Polymer Research)
3		Dihydropyrazine	Dihydropyrazine	C4H6N2	None
4	1453-58-3	3-Methylpyrazole	AKOS B022230 AKOS PAO-1147 3-Methylpyrazole 3-METHYLPYRAZOLE 3-methyl pyrazole ART-CHEM-BB B022230 3(5)-methylpyrazole 5-methyl-1H-pyrazole 3-METHYL-1H-PYRAZOLE 1H-pyrazole-3-methyl 3-methyl-1H-pyrazole 3-METHYL-1,2-DIAZOLE 1H-Pyrazole, 3-methyl-	C4H6N2	Pyrazole;Pyrazoles;Inhibitors;Heterocyces;Imidazoles,;Heterocycles;Building Blocks;General reagents;Organic chemistry;Heterocyclic block
5	4458-15-5	1H-pyrrol-2-amine	EOS-62162 EOS-62447 1H-pyrrol-2-aMine 1H-pyrrol-2-amine 2-AMino-1H-pyrrole	C4H6N2	Benzenes;Intermediates;Pharmaceutical intermediates
6		1H-PYRROL-2-YLAMINE	1H-PYRROL-2-YLAMINE	C4H6N2
7	1219805-95-4	4-Methylimidazole-d3	NSC 40744-d3 4-Methylimidazole-d3 4-MethyliMidazole-d3 4-(Methyl-d3)iMidazole 5-(Methyl-d3)iMidazole 4(5)-(Methyl-d3)iMidazole 5-(Methyl-d3)-1H-iMidazole 4-(Methyl-d3)-1H-iMidazole 5-(trideuteriomethyl)-1H-imidazole	C4H6N2
8	88054-14-2	1H-Pyrazole,5-methyl-	1H-Pyrazole,5-methyl-	C4H6N2	None;API intermediates
9	29212-49-5	1H-Pyrrol-3-amine(9CI)	1H-Pyrrol-3-amine(9CI)	C4H6N2
10	732976-86-2	3-Azetidinecarbonitrile	3-Azetidinecarbonitrile 3-Azetidinecarboniteile	C4H6N2	Organic materials;Hydrocarbon compounds
11	763-33-7	(E)-3-Aminobut-2-enenitrile	(E)-3-Aminobut-2-enenitrile	C4H6N2
12		(2E)-3-aminobut-2-enenitrile	(2E)-3-aminobut-2-enenitrile	C4H6N2
13		3-(Methylamino)propenenitrile	3-(Methylamino)propenenitrile	C4H6N2
14	4166-68-1	1-METHYLIMIDAZOLE-D3 (RING-D3)	1-METHYLIMIDAZOLE-D3 (RING-D3)	C4H6N2
15		1-AMINOCYCLOPROPANECARBONITRILE	1-AMINOCYCLOPROPANECARBONITRILE	C4H6N2
16		2,3-Diazabicyclo[2.1.1]hexa-2-ene	2,3-Diazabicyclo[2.1.1]hexa-2-ene 4,5-Dihydro-3,5-methano-3H-pyrazole	C4H6N2
17	2090628-05-8	2-Aminocyclopropane-1-carbonitrile	2-Amino-cyclopropanecarbonitrile 2-Aminocyclopropane-1-carbonitrile	C4H6N2
18	196311-65-6	1-Cyclopropanecarbonitrile, 1-amino	1-AMINO-CYCLOPROPANECARBONITRILE 1-aminocyclopropane-1-carbonitrile Cyclopropanecarbonitrile, 1-amino- 1-Cyclopropanecarbonitrile, 1-amino	C4H6N2
19	2089616-96-4	(2S)-2-aminocyclopropane-1-carbonitrile	2089616-96-4 (2S)-2-aminocyclopropane-1-carbonitrile (2S)-2-aminocyclopropane-1-carbonitrile hydrochloride	C4H6N2
20	1118-61-2	3-Aminocrotononitrile, mixture of cis andtrans	DIONIL 3-Aminocrotonitrile 3-Iminobutyronitrile) 3-Aminocrotononitrile 3-amino-2-butenenitril 3-Aminobut-2-enenitrile 3-aminobut-2-enenitrile (Z)-3-aMinobut-2-enenitrile (2E)-3-aminobut-2-enenitrile (2E)-3-Amino-2-butenenitrile (2Z)-3-aminobut-2-enenitrile 3-Amino-3-methylacrylonitrile Diacetonitrile~3-Iminobutyronitrile 3-Aminocrotononitrile, (Diacetonitrile 3-Aminocrotononitrile, mixture of cis andtrans	C4H6N2	Intermediates;Pharmaceutical intermediates;Intermediates of Dyes and Pigments

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ID	CAS	Product Name	Suppliers	Descriptions