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Chemical Name CAS Number Signal Word
4H,5H,6H,7H-[1,2,5]oxadiazolo[3,4-b]pyrazine-5,6-dione (EC: 840-031-4) 24294-89-1 Warning
4H,5H,6H,7H-[1,2,5]oxadiazolo[3,4-c]pyridine (EC: 842-615-4) 933715-68-5 Danger
4H,5H,6H,7H-[1,2]oxazolo[4,3-c]pyridine (EC: 853-504-5) 1000303-67-2 Danger
4H,5H,6H,7H-[1,2]oxazolo[4,3-c]pyridine hydrochloride (EC: 870-122-4) 1955493-65-8 Warning
4H,5H,6H,7H-[1,2]oxazolo[4,5-c]pyridin-3-ol hydrochloride (EC: 821-053-3) 1888488-02-5 Warning
4H,5H,6H,7H-[1,2]oxazolo[4,5-c]pyridine-3-carboxylic acid hydrochloride (EC: 971-798-4) 1803587-35-0 Warning
4H,5H,6H,7H-[1,2]oxazolo[4,5-c]pyridine hydrochloride (EC: 829-806-8) 1864051-65-9 Warning
4H,5H,6H,7H-[1,2]oxazolo[5,4-c]pyridine-3-carboxylic acid hydrochloride (EC: 948-442-1) 2243504-32-5 Warning
4H,5H,6H,7H-[1,2]oxazolo[5,4-c]pyridine hydrochloride (EC: 874-315-4) 2503206-22-0 Warning
4H,5H,6H,7H-[1,3]oxazolo[4,5-c]pyridine; trifluoroacetic acid (EC: 859-130-9) 2140316-46-5 Warning
4H,5H,6H,7H-[1,3]thiazolo[4,5-b]pyridin-2-amine hydrobromide (EC: 986-774-9) 2260936-36-3 Warning
{4H,5H,6H,7H-[1,3]thiazolo[4,5-c]pyridin-2-yl}methanol dihydrochloride (EC: 174-643-1) 3026715-94-3 Warning
4H,5H,6H,7H-[1,3]thiazolo[4,5-c]pyridine dihydrochloride (EC: 963-001-3) 2365418-28-4 Warning
4H,5H,6H,7H-[1,3]thiazolo[4,5-d]pyridazine-4,7-dione (EC: 875-214-8) 13669-86-8 Warning
4H,5H,6H,7H-[1,3]thiazolo[5,4-c]pyridin-2-amine (EC: 828-372-7) 97817-23-7 Warning
4H,5H,6H,7H-[1,3]thiazolo[5,4-c]pyridine-2-carbonitrile hydrochloride (EC: 117-392-5) 1864015-71-3 Warning
4H,5H,6H,7H-[1,3]thiazolo[5,4-c]pyridine dihydrochloride (EC: 892-730-9) 1803607-17-1 Warning
4H,5H,6H,7H-[1,3]thiazolo[5,4-c]pyridine (EC: 821-364-4) 165948-23-2 Danger
4H,5H,6H,7H,8H-[1,2,3]triazolo[1,5-a][1,4]diazepine hydrochloride (EC: 835-592-7) 1781610-84-1 Warning
4H,5H,6H,7H,8H-[1,2,3]triazolo[1,5-a]azepine-3-carboxylic acid (EC: 116-887-3) 1780785-35-4 Warning
4H,5H,6H,7H,8H-[1,3]thiazolo[4,5-d]azepine dihydrochloride (EC: 977-480-1) 2995288-20-3 Warning
4H,5H,6H,7H,8H,9H-[1,2,4]triazolo[1,5-a]quinazolin-5-one (EC: 850-206-7) 775569-91-0 Warning
4H,5H,6H,7H,8H,9H-cycloocta[b]thiophene-2-carboxylic acid (EC: 843-848-4) 40133-09-3 Warning
4H,5H,6H,7H,8H,9H-cycloocta[d][1,3]thiazol-2-amine (EC: 852-430-0) 27461-00-3 Warning
4H,5H,6H,7H,8H-cyclohepta[b]thiophen-5-one (EC: 171-311-8) 1017589-87-5 Warning
4H,5H,6H,7H,8H-cyclohepta[b]thiophene-2-carbohydrazide (EC: 102-847-2) 588696-80-4 Warning
4H,5H,6H,7H,8H-cyclohepta[b]thiophene-2-carboxylic acid (EC: 800-787-8) 40133-08-2 Warning
{4H,5H,6H,7H,8H-cyclohepta[d][1,2]oxazol-3-yl}methanamine (EC: 864-339-3) 1368920-70-0 Danger
{4H,5H,6H,7H,8H-cyclohepta[d][1,2]oxazol-3-yl}methanesulfonyl chloride (EC: 992-788-6) 2138169-55-6 Danger
4H,5H,6H,7H,8H-cyclohepta[d][1,2]oxazole-3-carboxylic acid (EC: 879-365-0) 33230-32-9 Warning
4H,5H,6H,7H,8H-cyclohepta[d][1,3]thiazol-2-amine (EC: 802-959-8) 14292-44-5 Warning
{4H,5H,6H,7H,8H-cyclohepta[d][1,3]thiazol-2-yl}methanamine (EC: 970-112-0) 643723-68-6 Danger
{4H,5H,6H,7H,8H-cyclohepta[d][1,3]thiazol-2-yl}methanol (EC: 977-541-2) 1211508-40-5 Warning
4H,5H,6H,7H,8H-furo[3,2-c]azepine (EC: 892-433-4) 82878-22-6 Danger
4H,5H,6H,7H,8H-pyrazolo[1,5-a][1,4]diazepin-2-amine (EC: 988-279-3) 2095409-92-8 Warning
{4H,5H,6H,7H,8H-pyrazolo[1,5-a][1,4]diazepin-2-yl}methanol (EC: 862-765-4) 1221792-15-9 Warning
4H,5H,6H,7H,8H-thieno[2,3-d]azepine (EC: 848-269-0) 102997-01-3 Danger
4H,5H,6H,7H,8H-thieno[3,2-b]azepin-5-one (EC: 827-870-1) 4751-61-5 Warning
4H,5H,6H,7H,8H-thieno[3,2-b]azepine hydrochloride (EC: 843-644-5) 1803591-40-3 Warning
4H,5H,6H,7H,8H-thieno[3,2-c]azepine hydrochloride (EC: 843-622-5) 83621-61-8 Warning
4H,5H,6H,7H-furo[3,2-c]pyridin-4-one (EC: 959-413-8) 1528800-56-7 Warning
4H,5H,6H,7H-furo[3,2-c]pyridine-4-carboxylic acid hydrochloride (EC: 892-485-8) 2044712-79-8 Warning
4H,5H,6H,7H-furo[3,2-c]pyridine hydrochloride (EC: 174-636-3) 179060-32-3 Warning
4H,5H,6H,7H-pyrazolo[1,5-a]pyrazin-2-amine (EC: 820-345-8) 1785544-01-5 Warning
4H,5H,6H,7H-pyrazolo[1,5-a]pyrazin-3-ol dihydrochloride (EC: 862-353-4) 2344685-66-9 Warning
{4H,5H,6H,7H-pyrazolo[1,5-a]pyrazin-3-yl}methanol (EC: 859-716-4) 1221279-26-0 Warning
4H,5H,6H,7H-pyrazolo[1,5-a]pyrazin-4-one (EC: 819-120-7) 951626-38-3 Warning
{4H,5H,6H,7H-pyrazolo[1,5-a]pyrazin-4-yl}methanol dihydrochloride (EC: 862-356-0) 2416229-66-6 Warning
4H,5H,6H,7H-pyrazolo[1,5-a]pyrazine-2-carbonitrile hydrochloride (EC: 895-879-8) 1609406-44-1 Warning
4H,5H,6H,7H-pyrazolo[1,5-a]pyrazine-2-carboxylic acid hydrochloride (EC: 867-930-4) 2009013-81-2 Warning