CAS: 5436-01-1 MDL Number: MFCD00234108

CAS: 14305-08-9 Molecular Formula: C10H6Br2N2O Molecular Weight (g/mol): 329.979 MDL Number: MFCD00052907 InChI Key: NQJXEMRMTOSSBQ-UHFFFAOYSA-N Synonym: 4,5-dibromo-2-phenyl-2-hydropyridazin-3-one, 4,5-bis bromanyl-2-phenyl-pyridazin-3-one, 3 2h-pyridazinone,4,5-dibromo-2-phenyl, 2-phenyl-4,5-dibromo-3 2h-pyridazinone, 4,5-dibromo-2-phenyl-pyridazin-3-one, 4,5-dibromo-2-phenyl-3-pyridazinone, 3 2h-pyridazinone, 4,5-dibromo-2-phenyl, 4,5-dibromo-2-phenyl-3 2h-pyridazinone, 4,5-dibromo-2-phenyl-2,3-dihydropyridazin-3-one, 4,5-dibromo-2-phenylpyridazin-3 2h-one PubChem CID: 203396 IUPAC Name: 4,5-dibromo-2-phenylpyridazin-3-one SMILES: C1=CC=C(C=C1)N2C(=O)C(=C(C=N2)Br)Br

CAS: 521-31-3 Molecular Formula: C₈H₇N₃O₂ Molecular Weight (g/mol): 177.16 MDL Number: MFCD00006890 InChI Key: HWYHZTIRURJOHG-UHFFFAOYSA-N Synonym: 3-aminophthalylhydrazide, ccris 5962, unii-5exp385q4f, 5-amino-1,2,3,4-tetrahydrophthalazine-1,4-dione, 3-aminophthalic acid hydrazide, 1,4-phthalazinedione, 5-amino-2,3-dihydro, 5-amino-2,3-dihydro-1,4-phthalazinedione, 3-aminophthalic hydrazide, 3-aminophthalhydrazide, luminol PubChem CID: 10638 IUPAC Name: 5-amino-2,3-dihydrophthalazine-1,4-dione SMILES: C1=CC2=C(C(=C1)N)C(=O)NNC2=O

CAS: 1445-69-8 Molecular Formula: C8H6N2O2 Molecular Weight (g/mol): 162.15 MDL Number: MFCD00006888 InChI Key: JNQUJPBFSQETPT-UHFFFAOYNA-N Synonym: phthaloylhydrazine, phthalylhydrazine, phthalhydrazine, 2,3-dihydro-phthalazine-1,4-dione, 1 2h-phthalazinone, 4-hydroxy, 1,4-phthalazinedione, 2,3-dihydro, 1,2,3,4-tetrahydrophthalazine-1,4-dione, phtalylhydrazine, phthalazine-1,4-diol, 2,3-dihydro-1,4-phthalazinedione PubChem CID: 219401 IUPAC Name: 2,3-dihydrophthalazine-1,4-dione SMILES: O=C1N=NC(=O)C2C=CC=CC12

CAS: 33098-21-4 Molecular Formula: C11H8Cl2N2O Molecular Weight (g/mol): 255.098 MDL Number: MFCD00135290 InChI Key: OWPCMQKRJFNLHF-UHFFFAOYSA-N Synonym: 4,5-dichloro-2-4-methylphenyl-2,3-dihydropyridazin-3one, 4,5-dichloro-2-4-methylphenyl pyridazin-3 2h-one, 4,5-dichloro-2-4-methylphenyl-3 2h-pyridazinone, 4,5-dichloro-2-p-tolyl pyridazin-3 2h-one, 4,5-dichloro-2-4-methylphenyl-2-hydropyridazin-3-one, 4,5-dichloro-2-p-tolyl-2h-pyridazin-3-one, 3 2h-pyridazinone,4,5-dichloro-2-4-methylphenyl, 4,5-dichloro-2-4-methylphenyl pyridazin-3-one, 4,5-dichloro-2-4-methylphenyl-2,3-dihydropyridazin-3-one PubChem CID: 2774757 IUPAC Name: 4,5-dichloro-2-(4-methylphenyl)pyridazin-3-one SMILES: CC1=CC=C(C=C1)N2C(=O)C(=C(C=N2)Cl)Cl

CAS: 3682-14-2 Molecular Formula: C8H7N3O2 Molecular Weight (g/mol): 177.16 MDL Number: MFCD00010560 InChI Key: HUDPLKWXRLNSPC-UHFFFAOYSA-N Synonym: 4-amino-phthalsaeure-hydrazid, 4-aminophthaloylhydrazine, 1enu, iso-luminol, 6-amino-2,3-dihydro-1,4-phthalazinedione, 1,4-phthalazinedione, 6-amino-2,3-dihydro, chembl14882, 6-aminophthalazine-1,4-diol, isoluminol, 4-aminophthalhydrazide PubChem CID: 95014 SMILES: NC1=CC=C2C(=O)NNC(=O)C2=C1

CAS: 2257-69-4 Molecular Formula: C8H5ClN2O Molecular Weight (g/mol): 180.59 MDL Number: MFCD00102192 InChI Key: QCKGMJDOJRNSMS-UHFFFAOYSA-N Synonym: 1-chlorophthalazine-4-one, 1-chlorophthalazin-4-one, 4-chlorophthalazin-1-one, 4-chloro-1-phthalazinol, 4-chlorophthalazone, 4-chloro-1 2h-phthalazinone, 1 2h-phthalazinone, 4-chloro, 4-chlorophthalazin-1-ol, 4-chloro-1,2-dihydrophthalazin-1-one, 4-chlorophthalazin-1 2h-one PubChem CID: 2775142 IUPAC Name: 4-chloro-2H-phthalazin-1-one SMILES: ClC1=NNC(=O)C2=CC=CC=C12

CAS: 932-22-9 Molecular Formula: C4H2Cl2N2O Molecular Weight (g/mol): 164.97 MDL Number: MFCD00051504 InChI Key: VJWXIRQLLGYIDI-UHFFFAOYSA-N Synonym: 4,5-dichloro-3-pyridazinol, 4,5-dichloro-pyridazin-3-ol, 4,5-dichloro-2,3-dihydropyridazin-3-one, 4,5-dichloro-3-hydroxypyridazine, 4,5-dichloro-2h-pyridazin-3-one, 4,5-dichloropyridazin-3-ol, 3 2h-pyridazinone, 4,5-dichloro, 4,5-dichloropyridazin-3 2h-one, 4,5-dichloro-3 2h-pyridazinone PubChem CID: 73247 SMILES: ClC1=C(Cl)C(=O)NN=C1

CAS: 37972-69-3 Molecular Formula: C5H3N2O3 Molecular Weight (g/mol): 139.09 MDL Number: MFCD09064936 InChI Key: GIFSROMQVPUQFK-UHFFFAOYSA-M Synonym: 6-oxohydropyridazine-3-carboxylic acid, 3-pyridazinecarboxylicacid, 1,6-dihydro-6-oxo, 6-oxo-1,6-dihydro-3-pyridazinecarboxylic acid, 6-hydroxy-pyridazine-3-carboxylic acid, 3-pyridazinecarboxylic acid, 1,6-dihydro-6-oxo, 3-hydroxypyridazine-6-carboxylic acid, 6-oxo-1,6-dihydro-pyridazine-3-carboxylic acid, 6-oxo-1,6-dihydropyridazine-3-carboxylic acid, 6-hydroxy-3-pyridazinecarboxylic acid, 6-hydroxypyridazine-3-carboxylic acid PubChem CID: 305970 IUPAC Name: 6-oxo-1H-pyridazine-3-carboxylic acid SMILES: [O-]C(=O)C1=NNC(=O)C=C1

CAS: 521-31-3 Molecular Formula: C8H7N3O2 Molecular Weight (g/mol): 177.163 MDL Number: MFCD00006890 InChI Key: HWYHZTIRURJOHG-UHFFFAOYSA-N Synonym: 3-aminophthalylhydrazide, ccris 5962, unii-5exp385q4f, 5-amino-1,2,3,4-tetrahydrophthalazine-1,4-dione, 3-aminophthalic acid hydrazide, 1,4-phthalazinedione, 5-amino-2,3-dihydro, 5-amino-2,3-dihydro-1,4-phthalazinedione, 3-aminophthalic hydrazide, 3-aminophthalhydrazide, luminol PubChem CID: 10638 IUPAC Name: 5-amino-2,3-dihydrophthalazine-1,4-dione SMILES: C1=CC2=C(C(=C1)N)C(=O)NNC2=O

CAS: 5788-58-9 Molecular Formula: C4H2Br2N2O Molecular Weight (g/mol): 253.881 MDL Number: MFCD00023641 InChI Key: AGLQURQNVJVJNB-UHFFFAOYSA-N Synonym: 4,5-dibromo-2-hydropyridazin-3-one, 4,5-dibromo-2h-pyridazin-3-one, 3 2h-pyridazinone, 4,5-dibromo, 4,5-dibromo-2,3-dihydropyridazin-3-one, 4,5-dibromopyridazin-3-ol, 4,5-dibromopyridazine-3 2h-one, 4,5-dibromopyridazin-3-one, 4,5-dibromo-3 2h-pyridazinone, 4,5-dibromopyridazin-3 2h-one PubChem CID: 236181 IUPAC Name: 4,5-dibromo-1H-pyridazin-6-one SMILES: C1=NNC(=O)C(=C1Br)Br

CAS: 27372-38-9 Molecular Formula: C5H6N2O3 Molecular Weight (g/mol): 142.114 MDL Number: MFCD00052030 InChI Key: VUADWGRLHPTYPI-UHFFFAOYSA-N Synonym: pubchem19274, 6-oxo-1,4,5-trihydropyridazine-3-carboxylic acid, 6-oxo-1,4,5,6-tetrahydropyridazin-3-carboxylic acid, 1,4,5,6-tetrahydro-6-oxo-3-pyridazinecarboxylic acid, 3-pyridazinecarboxylic acid, 1,4,5,6-tetrahydro-6-oxo, 6-oxo-1,4,5,6-tetrahydro-pyridazine-3-carboxylic acid, ot09ztp07e, unii-ot09ztp07e, 1,4,5,6-tetrahydro-6-oxopyridazine-3-carboxylic acid, 6-oxo-1,4,5,6-tetrahydropyridazine-3-carboxylic acid PubChem CID: 99621 IUPAC Name: 6-oxo-4,5-dihydro-1H-pyridazine-3-carboxylic acid SMILES: C1CC(=O)NN=C1C(=O)O

CAS: 5433-01-2 MDL Number: MFCD01318112

CAS: 1445-69-8 Molecular Formula: C8H6N2O2 Molecular Weight (g/mol): 162.15 MDL Number: MFCD00006888 InChI Key: JNQUJPBFSQETPT-UHFFFAOYNA-N Synonym: phthaloylhydrazine, phthalylhydrazine, phthalhydrazine, 2,3-dihydro-phthalazine-1,4-dione, 1 2h-phthalazinone, 4-hydroxy, 1,4-phthalazinedione, 2,3-dihydro, 1,2,3,4-tetrahydrophthalazine-1,4-dione, phtalylhydrazine, phthalazine-1,4-diol, 2,3-dihydro-1,4-phthalazinedione PubChem CID: 219401 SMILES: O=C1N=NC(=O)C2C=CC=CC12

CAS: 7143-82-0 Molecular Formula: C5H6N2O Molecular Weight (g/mol): 110.12 MDL Number: MFCD00039720 InChI Key: QZWIXLPWMGHDDD-UHFFFAOYSA-N Synonym: 6-methylpyridazin-3 2h-one-water 1/1, 6-methyl-2,3-dihydropyridazine-3-one hydrate, 6-methyl-2-hydropyridazin-3-one, hydrate, 6-methylpyridazin-3 2h ;-one hydrate, 3-methyl-1h-pyridazin-6-one hydrate, 6-methylpyridazin-3-one hydrate, 6-methyl-2h-pyridazin-3-one hydrate, 6-methyl-2,3-dihydropyridazin-3-one hydrate, 6-methylpyridazin-3 2h-one hydrate, 6-methylpyridazin-3-ol hydrate PubChem CID: 2774632 SMILES: CC1=NNC(=O)C=C1

CAS: 107558-48-5 Molecular Formula: C14H11N3O Molecular Weight (g/mol): 237.262 MDL Number: MFCD00443664 InChI Key: NIQMWTLRDNQDIA-UHFFFAOYSA-N Synonym: 4-pyridin-4-ylmethyl phthalazin-1-ol, 4-4-pyridylmethyl-phthalazinone, cambridge id 5237055, enamine_000224, 4-pyridin-4-ylmethyl-1,2-dihydrophthalazin-1-one, 1 2h-phthalazinone,4-4-pyridinylmethyl, 4-4-pyridinylmethyl-1 2h-phthalazinone, 4-pyridin-4-ylmethyl-2h-phthalazin-1-one, 4-pyridin-4-ylmethyl phthalazin-1 2h-one, 4-4-pyridylmethyl-1 2h-phthalazinone PubChem CID: 789954 IUPAC Name: 4-(pyridin-4-ylmethyl)-2H-phthalazin-1-one SMILES: C1=CC=C2C(=C1)C(=NNC2=O)CC3=CC=NC=C3

CAS: 36725-37-8 Molecular Formula: C10H9BrN2O Molecular Weight (g/mol): 253.099 MDL Number: MFCD00203490 InChI Key: CDDNLMGOLYMTSF-UHFFFAOYSA-N Synonym: 6-4-bromo-phenyl-4,5-dihydro-2h-pyridazin-3-one, 3 2h-pyridazinone,6-4-bromophenyl-4,5-dihydro, 6-p-bromophenyl-4,5-dihydro-3 2h-pyridazinone, 6-4-bromophenyl-4 5-dihydro-2h-pyrida, 3-4-bromophenyl-4,5-dihydro-1h-pyridazin-6-one, 6-4-bromophenyl-2,4,5-trihydropyridazin-3-one, 6-4-bromophenyl-4,5-dihydro-3 2h-pyridazinone, 6-4-bromophenyl-2,3,4,5-tetrahydropyridazin-3-one, 6-4-bromophenyl-4,5-dihydro-2h-pyridazin-3-one, 6-4-bromophenyl-4,5-dihydropyridazin-3 2h-one PubChem CID: 689108 IUPAC Name: 3-(4-bromophenyl)-4,5-dihydro-1H-pyridazin-6-one SMILES: C1CC(=O)NN=C1C2=CC=C(C=C2)Br

CAS: 2257-69-4 Molecular Formula: C8H5ClN2O Molecular Weight (g/mol): 180.59 MDL Number: MFCD00102192 InChI Key: QCKGMJDOJRNSMS-UHFFFAOYSA-N Synonym: 1-chlorophthalazine-4-one, 1-chlorophthalazin-4-one, 4-chlorophthalazin-1-one, 4-chloro-1-phthalazinol, 4-chlorophthalazone, 4-chloro-1 2h-phthalazinone, 1 2h-phthalazinone, 4-chloro, 4-chlorophthalazin-1-ol, 4-chloro-1,2-dihydrophthalazin-1-one, 4-chlorophthalazin-1 2h-one PubChem CID: 2775142 SMILES: ClC1=NNC(=O)C2=CC=CC=C12

CAS: 119-39-1 Molecular Formula: C₈H₆N₂O Molecular Weight (g/mol): 146.15 MDL Number: MFCD00006892 InChI Key: IJAPPYDYQCXOEF-UHFFFAOYSA-N Synonym: 1,2-dihydrophthalazin-1-one, 1 2h phthalazinone, 1-hydroxyphthalazine, phthalazin-1-ol, 1-phthalazinol, phthalazin-1-one, phthalazinone, phthalazone, phthalazin-1 2h-one, 1 2h-phthalazinone PubChem CID: 8394 ChEBI: CHEBI:34023 IUPAC Name: 2H-phthalazin-1-one SMILES: C1=CC=C2C(=C1)C=NNC2=O

CAS: 933-76-6 Molecular Formula: C5H4Cl2N2O Molecular Weight (g/mol): 179.00 MDL Number: MFCD00051686 InChI Key: ACKBTCUMGAHRIE-UHFFFAOYSA-N Synonym: 5-24-02-00023 beilstein handbook reference, acmc-209wiz, pubchem16243, 4,5-dichloro-2-methyl-2-hydropyridazin-3-one, 3 2h-pyridazinone,4,5-dichloro-2-methyl, 4,5-dichloro-2-methyl-2,3-dihydropyridazin-3-one, 4,5-dichloro-2-methyl-2h-pyridazin-3-one, 3 2h-pyridazinone, 4,5-dichloro-2-methyl, 4,5-dichloro-2-methyl-3 2h-pyridazinone, 4,5-dichloro-2-methylpyridazin-3 2h-one PubChem CID: 120462 IUPAC Name: 4,5-dichloro-2-methylpyridazin-3-one SMILES: CN1N=CC(Cl)=C(Cl)C1=O

CAS: 19064-67-6 Molecular Formula: C4H3ClN2O Molecular Weight (g/mol): 130.531 MDL Number: MFCD00160460 InChI Key: YICPBKWYZXFJNB-UHFFFAOYSA-N Synonym: 6-chloro-3-pyridazinol, 3-hydroxy-6-chloropyridazine, 3-chloro-6-pyridazone, 6-chloro-3 2h-pyridazinone, 3 2h-pyridazinone, 6-chloro, 3-chloro-6-hydroxypyridazine, 6-chloropyridazin-3 2h-one, 6-chloro-2h-pyridazin-3-one, 6-chloro-3-hydroxypyridazine, 6-chloropyridazin-3-ol PubChem CID: 252828 IUPAC Name: 3-chloro-1H-pyridazin-6-one SMILES: C1=CC(=NNC1=O)Cl

CAS: 660425-07-0 Molecular Formula: C4H3ClN2O Molecular Weight (g/mol): 130.53 MDL Number: MFCD12198134 InChI Key: NHMLZGFOEYLZEN-UHFFFAOYSA-N Synonym: 5-chloropyridazin-3 2h one, 5-chloro-pyridazin-3-one, 5-chloropyridazine-3-ol, 5-chloropyridazin-3-one, acmc-20dlsu, 3 2h-pyridazinone, 5-chloro, 5-chloro-2h-pyridazin-3-one, 5-chloropyridazin-3-ol, 5-chloropyridazin-3 2h-one, 5-chloropyridazin-3-2h-one PubChem CID: 19905718 IUPAC Name: 4-chloro-1H-pyridazin-6-one SMILES: ClC1=CC(=O)NN=C1

CAS: 13327-27-0 Molecular Formula: C5H6N2O Molecular Weight (g/mol): 110.12 MDL Number: MFCD00039720 InChI Key: QZWIXLPWMGHDDD-UHFFFAOYSA-N Synonym: 6me3oxopyridaz, 6-methyl-2,3-dihydropyridazin-3-one, 3 2h-pyridazinone, 6-methyl, 3-hydroxy-6-methylpyridazine, 6-methyl-3-pyridazinone, 6-methyl-2h-pyridazin-3-one, 6-methylpyridazin-3-ol, 6-methyl-3 2h-pyridazinone, 6-methylpyridazin-3 2h-one PubChem CID: 83346 IUPAC Name: 3-methyl-1H-pyridazin-6-one SMILES: CC1=NNC(=O)C=C1