Structure	Chemical Name	CAS	MF
	Telluracyclopentadiene	288-08-4	C4H4Te
	Pyrazole	288-13-1	C3H4N2
	Isoxazole	288-14-2	C3H3NO
	Isothiazole	288-16-4	C3H3NS
	3H-1,2-Oxathiole	288-22-2
	Imidazole	288-32-4	C3H4N2
	2H-1,2,3-Triazole	288-35-7	C2H3N3
	1,2,3-1H-Triazole	288-36-8	C2H3N3
	1,2,5-oxadiazole	288-37-9	C2H2N2O
	1H-1,3,2-Diazaphosphole	288-38-0
	1,2,5-Thiadiazoles	288-39-1	C2H2N2S
	1,2,5-Selenadiazole	288-40-4
	Oxazole	288-42-6	C3H3NO
	1,2,3-Oxadiazole	288-43-7	C2H2N2O
	3H-1,2,3-Oxathiazole	288-46-0
	Thiazole	288-47-1	C3H3NS
	288-47-1	288-47-1	C3H3NS
	thiadiazole	288-48-2	C2H2N2S
	5H-1,2,5-Oxathiazole	288-49-3	C2H3NOS
	1,3-Oxathiole	288-67-5	C3H4OS
	1,3,2-Oxathiazole	288-68-6
	1,2,3-Oxadithiole	288-70-0	C2H2OS2
	1,2,5-Oxadithiole	288-77-7
	1,2,4-Triazole	288-88-0	C2H3N3
	1,2,4-oxadiazole	288-90-4	C2H2N2O
	1H-1,4,2-Diazaphosphole	288-91-5	C2H3N2P
	1,2,4-thiadiazole	288-92-6	C2H2N2S
	Tetrazole	288-94-8	CH2N4
	3H-1,2,4-Dioxazole	288-98-2	C2H3NO2
	1,3,4-oxadiazole	288-99-3	C2H2N2O
	1,4,2-Dioxazole	289-02-1
	1,3,4-Oxathiazole	289-04-3	C2H3NOS
	1,3,4-Thiadiazole	289-06-5	C2H2N2S
	1,4,2-Oxathiazole	289-11-2
	1,3,4-Selenadiazole	289-13-4	C2H2N2Se
	1,2,4-Trithiolane	289-16-7	C2H4S3
	Cyclopentasilane	289-22-5	H10Si5
	1-Arsabenzene	289-31-6
	2H-Pyran	289-66-7
	Pyrylium	289-67-8	C5H5O+
	Hydroxyecdysone	289-74-7	C5H5S+
	Antimonin	289-75-8
	stannin	289-78-1	C5H5Sn
	Pyridazine	289-80-5	C4H4N2
	4H-1,2-Oxazine	289-81-6
	2H-1,2-Oxazine	289-82-7
	6H-1,2-Oxazine	289-83-8
	1,2-Oxathiin	289-89-4
	Pyrimidine	289-95-2	C4H4N2
	1,2,3-Triazine	289-96-3	C3H3N3
	2H-1,2,6-Oxadiazine	289-98-5	C3H4N2O
	4H-1,3-Oxazine	290-03-9
	2H-1,3-Oxazine	290-04-0	C4H5NO
	1,2,6-Oxathiazine	290-09-5
	4H-1,3,2-Dioxathiin	290-16-4
	4H-1,3-Oxathiin	290-21-1
	3H-1,2,6-Oxadithiin	290-27-7
	Pyrazine	290-37-9	C4H4N2
	1,2,4-Triazine	290-38-0	C3H3N3
	4H-1,4-Oxazine	290-47-1
	2H-1,2,4-Oxadiazine	290-49-3	C3H4N2O
	2H-1,3,4-Oxadiazine	290-52-8
	4H-1,4-Thiazine	290-57-3
	1,2,5-Oxathiazine	290-61-9	C3H3NOS
	1,4-dioxin	290-67-5	C4H4O2
	1,4-Oxathiin	290-72-2
	1,2,4-Oxadithiin	290-73-3
	1,3,5-Triazine	290-87-9	C3H3N3
	2H-1,3,5-Oxadiazine	290-88-0
	s-tetrazine	290-96-0	C2H2N4
	4H-1,3,5-Dioxazine	291-00-9
	1,3,5-Dioxathiane	291-13-4
	1,3,5-Oxadithiane	291-18-9
	1,3,5-TRITHIANE	291-21-4	C3H6S3
	1,3,5-Trisilacyclohexane	291-27-0	C3H12Si3
	cyclotriphosphazene ester	291-37-2	N3P3
	CYCLOHEPTANE	291-64-5	C7H14
	Cycloheptane	291-64-5	C7H14
	2H-Azepine	291-68-9	C6H7N
	1H-Azepine	291-69-0	C6H7N
	Oxepine	291-70-3
	4H-1,2-Diazepine	291-76-9
	3H-1,2-Diazepine	291-77-0
	1H-1,2-Diazepine	291-78-1	C5H6N2
	1,2-Oxazepine	291-79-2
	3H-1,2-Oxathiepin	291-82-7
	1H-1,3-Diazepine	291-87-2
	2H-1,3-Diazepine	291-88-3
	1,3-Oxazepine	291-89-4
	5H-1,4-Diazepine	292-03-5	C5H6N2
	1H-1,4-Diazepine	292-04-6
	1,4-Oxazepine	292-10-4
	5H-1,4-Oxathiepin	292-17-1
	1,2,4,6-Tetrathiepane	292-45-5	C3H6S4
	Lenthionine	292-46-6	C2H4S5
	Cyclooctane	292-64-8	C8H16
	Cyclooctane	292-64-8	C8H16
	Azocine	292-65-9
	2H-Oxocin	292-66-0
	1,2-Diazocine	292-69-3

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