Structure	Chemical Name	CAS	MF
	Thieno[3,2-f]benzothiazole (8CI,9CI)	267-63-0	C9H5NS2
	Benzo[1,2-b:4,5-b']dithiophene	267-65-2	C10H6S2
	2H-Imidazo[4,5-f]benzoxazole(8CI,9CI)	267-85-6	C8H5N3O
	Benzo[1,2-d:4,5-d']bisthiazole	267-99-2	C8H4N2S2
	5H,10H-Dipyrrolo[1,2-a:1,2-d]pyrazine	268-30-4	C10H10N2
	4H,9H-Dipyrazolo[1,5-a:1,5-d]pyrazine	268-32-6	C8H8N4
	1H,6H-Dipyrazolo[1,5-a:1,5-d]pyrazine (8CI,9CI)	268-33-7	C8H8N4
	5H,10H-Diimidazo[1,2-a:1,2-d]pyrazine	268-34-8	C8H8N4
	6H-Pyrrolo[2,3-g]quinoxaline	268-60-0	C10H7N3
	Naphth[2,3-c]isoxazole (8CI,9CI)	268-66-6	C11H7NO
	naphtho[2,3-b]thiophene	268-77-9	C12H8S
	1H-Naphth[2,3-d]imidazole(8CI,9CI)	269-07-8	C11H8N2
	1H-Imidazo[4,5-g]quinoline(8CI,9CI)	269-08-9	C10H7N3
	1H-Imidazo[4,5-g]quinoxaline(8CI,9CI)	269-10-3	C9H6N4
	1H-naphtho(2,3-d)triazole	269-12-5	C10H7N3
	2H-1,2,3-Triazolo[4,5-g]quinoxaline	269-15-8	C8H5N5
	Naphth[2,3-c][1,2,5]oxadiazole (7CI,8CI,9CI)	269-16-9	C10H6N2O
	Naphtho[2,3-d]thiazole (8CI,9CI)	269-24-9	C11H7NS
	Thiazolo[4,5-g]quinoline (8CI,9CI)	269-25-0	C10H6N2S
	8H-Thiopyrano[3,2-f]benzothiazole(8CI,9CI)	269-26-1	C10H7NS2
	Thiazolo[5,4-g]quinoline (8CI,9CI)	269-27-2	C10H6N2S
	Thiazolo[4,5-g]quinoxaline (8CI,9CI)	269-28-3	C9H5N3S
	5H-Thiazolo[4,5-g][1,4]benzothiazine(8CI,9CI)	269-29-4	C9H6N2S2
	6H-Thiopyrano[2,3-f]benzothiazole(8CI,9CI)	269-30-7	C10H7NS2
	[1,3]DIOXOLO[4,5-G]ISOQUINOLINE	269-44-3	C10H7NO2
	1,3-Dioxolo[4,5-g]quinoxaline (9CI)	269-56-7	C9H6N2O2
	4H-Cyclopenta[b]quinoxaline	269-66-9	C11H8N2
	1H-Cyclopenta[b]quinoxaline (8CI,9CI)	269-67-0	C11H8N2
	2H-Pyrrolo[3,4-b]quinoxaline	269-70-5	C10H7N3
	Furo[3,4-b]quinoxaline (8CI,9CI)	269-71-6	C10H6N2O
	2H-Pyrrolo[2,3-b]quinoxaline	269-73-8	C10H7N3
	1H-Pyrrolo[2,3-b]quinoxaline (8CI,9CI)	269-74-9	C10H7N3
	Furo[2,3-b]quinoxaline (8CI,9CI)	269-77-2	C10H6N2O
	2H-1,2,3-Triazolo[4,5-b]quinoxaline	269-85-2	C8H5N5
	Oxazolo[4,5-b]quinoxaline (8CI,9CI)	269-86-3	C9H5N3O
	2H-2-Pyrindine	270-58-6	C8H7N
	Cyclopenta[c]thiopyran	270-63-3	C8H6S
	2H-Cyclopenta[d]pyridazine	270-64-4	C7H6N2
	2H-Isoindole	270-68-8	C8H7N
	1H-Isoindole	270-69-9	C8H7N
	Isobenzofuran	270-75-7	C8H6O
	BENZO[C]THIOPHENE	270-82-6	C8H6S
	1H-Cyclopenta[b]pyridine	270-88-2	C8H7N
	5H-CYCLOPENTA[B]PYRIDINE	270-91-7	C8H7N
	7H-Cyclopenta[b]pyridine	270-92-8	C8H7N
	1H-Cyclopentapyrimidine (8CI,9CI)	270-95-1	C7H6N2
	4H-Cyclopentapyrimidine (8CI,9CI)	270-96-2	C7H6N2
	2H-Cyclopentapyrimidine (8CI,9CI)	270-97-3	C7H6N2
	5H-Cyclopentapyrimidine (8CI,9CI)	270-98-4	C7H6N2
	7H-PYRROLO[3,4-D]PYRIMIDINE	271-03-4	C6H5N3
	Furo[3,4-d]pyrimidine (8CI,9CI)	271-05-6	C6H4N2O
	Thieno[3,4-d]pyrimidine (8CI,9CI)	271-07-8	C6H4N2S
	Cyclopenta[b]thiopyran	271-17-0	C8H6S
	2H-Indole	271-25-0	C8H7N
	3H-Indole	271-26-1	C8H7N
	6-Azaindole	271-29-4	C7H6N2
	5-AZAINDOLE	271-32-9	C7H6N2
	5-Azaindole	271-34-1	C7H6N2
	1H-PYRROLO[2,3-D]PYRIDAZINE	271-35-2	C6H5N3
	1H-Indazole	271-38-5	C7H6N2
	2H-Indazole	271-42-1	C7H6N2
	Indazole	271-44-3	C7H6N2
	1H-pyrazolo[3,4-c]pyridine	271-45-4	C6H5N3
	1H-PYRAZOLO[3,4-C]PYRIDINE	271-47-6	C6H5N3
	1H-pyrazolo[4,3-c]pyridine	271-49-8	C6H5N3
	2H-Pyrazolo[4,3-c]pyridine	271-50-1	C6H5N3
	1H-PYRAZOLO[4,3-C]PYRIDINE	271-52-3	C6H5N3
	2,1-BENZISOXAZOLE	271-58-9	C7H5NO
	1,2-BENZISOTHIAZOLE	271-61-4	C7H5NS
	7-Azaindole	271-63-6	C7H6N2
	4H-Pyrrolo[2,3-d]pyrimidine (8CI,9CI)	271-68-1	C6H5N3
	6H-Pyrrolo[2,3-d]pyrimidine (8CI,9CI)	271-69-2	C6H5N3
	DEAZAPURINE	271-70-5	C6H5N3
	1H-pyrazolo[3,4-b]pyridine	271-71-6	C6H5N3
	1H-PYRAZOLO[3,4-B]PYRIDINE	271-73-8	C6H5N3
	4H-Pyrazolo[3,4-d]pyrimidine (8CI,9CI)	271-76-1	C5H4N4
	6H-Pyrazolo[3,4-d]pyrimidine (8CI,9CI)	271-77-2	C5H4N4
	2H-Pyrazolo[3,4-d]pyrimidine (8CI,9CI)	271-78-3	C5H4N4
	3H-Pyrazolo[3,4-d]pyrimidine (8CI,9CI)	271-79-4	C5H4N4
	1H-PYRAZOLO[3,4-D]PYRIMIDINE	271-80-7	C5H4N4
	Benzofuran	271-89-6	C8H6O
	Benzofuran	271-89-6	C8H6O
	Furo[3,2-c]pyridine	271-92-1	C7H5NO
	Furo[2,3-d]pyridazine	271-93-2	C6H4N2O
	1,2-BENZISOXAZOLE	271-95-4	C7H5NO
	Furo[2,3-b]pyridine	272-01-5	C7H5NO
	Furo[2,3-d]pyrimidine (8CI,9CI)	272-02-6	C6H4N2O
	Isoxazolo[5,4-d]pyrimidine (8CI,9CI)	272-04-8	C5H3N3O
	THIENO[2,3-C]PYRIDINE	272-12-8	C7H5NS
	thieno[3,2-c]pyridine	272-14-0	C7H5NS
	Thieno[2,3-d]pyridazine	272-15-1	C6H4N2S
	Benzo[d]Isothiazole	272-16-2	C7H5NS
	Thieno[2,3-b]pyridine (8CI,9CI)	272-23-1	C7H5NS
	Thieno[2,3-d]pyrimidine (8CI,9CI)	272-24-2	C6H4N2S
	Isothiazolo[5,4-d]pyrimidine (8CI,9CI)	272-26-4	C5H3N3S
	BENZO[B]SELENOPHENE	272-30-0	C8H6Se
	1,2-Benzisoselenazole	272-31-1	C7H5NSe
	A-N-Benzoyl-L-ArginineEthylEsterHydrochloride(B	272-32-0
	Benzo[b]tellurophene	272-35-5	C8H6Te
	thieno[3,4-b]pyrazine	272-43-5	C6H4N2S

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