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Chemical Name CAS Number Signal Word
2,4-dihydro-4-[(2-hydroxyphenyl)azo]-5-methyl-2-phenyl-3H-pyrazol-3-one (EC: 233-006-9) 10010-74-9 Danger
2,4-dihydro-4-[(2-methoxyphenyl)azo]-5-methyl-2-phenyl-3H-pyrazol-3-one (EC: 225-074-3) 4645-07-2 Warning
2,4-dihydro-4-[(3-methoxyphenyl)azo]-5-methyl-2-phenyl-3H-pyrazol-3-one (EC: 289-234-4) 86427-68-1 Warning
2,4-dihydro-4-(4-(4-(4-hydroxyphenyl)-1-piperazinyl)phenyl)-2-(1-methylpropyl)-3H-1,2,4-triazol-3-one (EC: 434-820-9) 106461-41-0 Warning
2,4-dihydro-4-[4-[4-(4-methoxyphenyl)piperazin-1-yl]phenyl]-3H-1,2,4-triazol-3-one (EC: 278-009-6) 74853-07-9 Warning
2,4-dihydro-4,5-dimethyl-2-phenyl-3H-pyrazol-3-one (EC: 241-844-1) 17900-68-4 Warning
2,4-dihydro-4,5-dimethyl-3H-1,2,4-triazole-3-thione (EC: 254-202-0) 38942-50-6 Warning
2,4-dihydro-4-[(5-hydroxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)methylene]-5-methyl-2-phenyl-3H-pyrazol-3-one (EC: 224-037-9) 15900-11-5
2,4-dihydro-4-methyl-5-(trifluoromethyl)-3H-1,2,4-triazole-3-thione (EC: 250-288-9) 30682-81-6 Warning
2,4-Dihydro-5-[2,4-dihydroxy-5-isopropylphenyl]-4-(1-methyl-1H-indol-5-yl)-3H-1,2,4-triazol-3-one (EC: 812-978-3) 888216-25-9 Warning
2,4-dihydro-5-methyl-2-phenyl-3H-pyrazol-3-imine (EC: 229-014-7) 6401-97-4 Danger
2,4-dihydro-5-methyl-2-phenyl-4-(phenylazo)-3H-pyrazol-3-one (EC: 224-330-1) 4314-14-1
2,4-dihydro-5-methyl-3H-pyrazol-3-one (EC: 203-565-3) 108-26-9 Warning
2,4-dihydro-5-methyl-4-phenyl-3H-1,2,4-triazole-3-thione (EC: 228-342-8) 6232-82-2 Warning
2,4-Dihydroindeno(1,2-C)pyrazole (EC: 633-955-2) 150433-24-2 Warning
2,4-dihydrospiro[1-benzopyran-3,1'-cyclobutan]-4-one (EC: 866-923-3) 1557699-49-6 Warning
2,4-dihydrospiro[1-benzopyran-3,1'-cyclopropan]-4-one (EC: 866-914-4) 1368407-47-9 Warning
2',4'-DIHYDROXY-2-METHOXYACETOPHENONE (EC: 661-712-0) 57280-75-8 Warning
2,4-Dihydroxy-3-[(1R,6R)-3-methyl-6-(1-methylethenyl)-2-cyclohexen-1-yl]-6-pentylbenzoic acid (EC: 857-126-1) 1244-58-2 Warning
2,4-Dihydroxy-3-[(1R,6R)-3-methyl-6-(1-methylethenyl)-2-cyclohexen-1-yl]-6-propylbenzoic acid (EC: 980-820-1) 31932-13-5 Warning
2,4-dihydroxy-3,4-dihydro-2H-1,4-benzoxazin-3-one (EC: 830-178-2) 17359-54-5 Warning
2',4'-DIHYDROXY-3'-METHYL-5'-NITROACETOPHENONE (EC: 661-793-2) 118824-94-5 Danger
2,4-dihydroxy-3-methylbenzaldehyde (EC: 228-369-5) 6248-20-0 Warning
2,4-dihydroxy-3-methylbenzoic acid (EC: 700-279-5) 4707-49-7 Warning
2',4'-Dihydroxy-3'-propylacetophenone (EC: 627-597-6) 40786-69-4 Warning
2,4-DIHYDROXY-5-HEXYLBENZALDEHYDE (EC: 667-405-8) 37470-87-4 Warning
2,4-Dihydroxy-5-methoxybenzaldehyde (EC: 694-544-1) 51061-83-7 Warning
2,4-dihydroxy-5-methylbenzaldehyde (EC: 115-943-4) 39828-37-0 Warning
2',4'-Dihydroxy-5'-nitroacetophenone (EC: 626-271-0) 3328-77-6 Danger
2,4-dihydroxy-5-(propan-2-yl)benzaldehyde (EC: 979-425-7) 958888-27-2 Warning
2,4-dihydroxy-5-(propan-2-yl)benzoic acid (EC: 100-595-8) 1184181-48-3 Danger
2,4-Dihydroxy-5-tert-butylbenzophenone (EC: 622-202-3) 4211-67-0 Warning
2,4-Dihydroxy-6-[(E)-2-(4-hydroxyphenyl)vinyl]phenyl β-D-glucopyranoside (EC: 683-231-5) 82373-94-2 Warning
2',4'-DIHYDROXY-6'-METHYLACETOPHENONE (EC: 669-063-5) 703-29-7 Danger
2,4-Dihydroxy-6-methylbenzaldehyde (EC: 624-460-2) 487-69-4 Warning
2,4-dihydroxy-6-methylbenzoic acid (EC: 610-404-4) 480-64-8 Warning
2,4-Dihydroxy-6-methylnicotinic acid (EC: 814-236-4) 846557-80-0 Warning
2,4-Dihydroxy-6-methylpyridine (EC: 690-441-0) 3749-51-7 Warning
2',4'-dihydroxyacetophenone (EC: 201-945-3) 89-84-9 Danger
2,4-dihydroxybenzaldehyde (EC: 202-383-1) 95-01-2 Warning
2,4-DIHYDROXYBENZALDEHYDE N-ETHYLTHIOSEMICARBAZONE (EC: 647-627-1) 477731-20-7 Warning
2,4-dihydroxybenzaldehyde oxime (EC: 226-436-3) 5399-68-8 Warning
2,4-DIHYDROXYBENZALDEHYDE SEMICARBAZONE (EC: 658-244-4) 3030-93-1 Warning
2,4-DIHYDROXYBENZALDEHYDE THIOSEMICARBAZONE (EC: 657-021-9) 6292-76-8 Warning
2,4-dihydroxybenzamide (EC: 221-567-2) 3147-45-3 Warning
2,4-Dihydroxybenzene-1,3,5-tricarbaldehyde (EC: 962-429-8) 58343-11-6 Warning
(2,4-dihydroxybenzoato-O1,O2)hydroxycopper (EC: 274-171-7) 69868-09-3 Warning
2,4-dihydroxybenzoic acid (EC: 201-946-9) 89-86-1 Warning
2,4-DIHYDROXYBENZOIC ACID HYDRAZIDE (EC: 627-204-8) 13221-86-8 Warning
2,4-dihydroxybenzonitrile (EC: 264-886-2) 64419-24-5 Warning