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Pyridazines and derivatives

Aromatic organic compounds consist of an aromatic six-membered ring containing two adjacent nitrogen atoms and four carbon atoms; includes compounds derived from pyridazines.
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1 – 15 of 264 results
1

4-Vinylbenzeneboronic acid, 98%, Thermo Scientific Chemicals

CAS: 2156-04-9 Molecular Formula: C8H9BO2 Molecular Weight (g/mol): 147.97 MDL Number: MFCD00239441 InChI Key: QWMJEUJXWVZSAG-UHFFFAOYSA-N SMILES: OB(O)C1=CC=C(C=C)C=C1

CAS 2156-04-9
Molecular Weight (g/mol) 147.97
MDL Number MFCD00239441
SMILES OB(O)C1=CC=C(C=C)C=C1
InChI Key QWMJEUJXWVZSAG-UHFFFAOYSA-N
Molecular Formula C8H9BO2
2

Thermo Scientific Chemicals 4,5-Dichloropyridazin-3(2H)-one, 98%

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 2h-pyridazinone,4,5-dichloropyridazin-3 2h-one,3 2h-pyridazinone, 4,5-dichloro,4,5-dichloropyridazin-3-ol,4,5-dichloro-2h-pyridazin-3-one,4,5-dichloro-3-hydroxypyridazine,4,5-dichloro-2,3-dihydropyridazin-3-one,4,5-dichloro-pyridazin-3-ol,4,5-dichloro-3-pyridazinol PubChem CID: 73247 SMILES: ClC1=C(Cl)C(=O)NN=C1

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

6-Chloro-3(2H)-pyridazinone, 98%, Thermo Scientific Chemicals

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

PubChem CID 252828
CAS 19064-67-6
Molecular Weight (g/mol) 130.531
MDL Number MFCD00160460
SMILES C1=CC(=NNC1=O)Cl
Synonym 6-chloropyridazin-3-ol,6-chloro-3-hydroxypyridazine,6-chloro-2h-pyridazin-3-one,6-chloropyridazin-3 2h-one,3-chloro-6-hydroxypyridazine,3 2h-pyridazinone, 6-chloro,6-chloro-3 2h-pyridazinone,3-chloro-6-pyridazone,3-hydroxy-6-chloropyridazine,6-chloro-3-pyridazinol
IUPAC Name 3-chloro-1H-pyridazin-6-one
InChI Key YICPBKWYZXFJNB-UHFFFAOYSA-N
Molecular Formula C4H3ClN2O
4

Thermo Scientific Chemicals 4,5-Dibromo-3(2H)-pyridazinone, 98%

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

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

Thermo Scientific Chemicals 4,5-Dibromo-2-phenyl-2,3-dihydropyridazin-3-one, 97%, Thermo Scientific™

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-phenylpyridazin-3 2h-one,4,5-dibromo-2-phenyl-2,3-dihydropyridazin-3-one,4,5-dibromo-2-phenyl-3 2h-pyridazinone,3 2h-pyridazinone, 4,5-dibromo-2-phenyl,4,5-dibromo-2-phenyl-3-pyridazinone,4,5-dibromo-2-phenyl-pyridazin-3-one,2-phenyl-4,5-dibromo-3 2h-pyridazinone,3 2h-pyridazinone,4,5-dibromo-2-phenyl,4,5-bis bromanyl-2-phenyl-pyridazin-3-one,4,5-dibromo-2-phenyl-2-hydropyridazin-3-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

PubChem CID 203396
CAS 14305-08-9
Molecular Weight (g/mol) 329.979
MDL Number MFCD00052907
SMILES C1=CC=C(C=C1)N2C(=O)C(=C(C=N2)Br)Br
Synonym 4,5-dibromo-2-phenylpyridazin-3 2h-one,4,5-dibromo-2-phenyl-2,3-dihydropyridazin-3-one,4,5-dibromo-2-phenyl-3 2h-pyridazinone,3 2h-pyridazinone, 4,5-dibromo-2-phenyl,4,5-dibromo-2-phenyl-3-pyridazinone,4,5-dibromo-2-phenyl-pyridazin-3-one,2-phenyl-4,5-dibromo-3 2h-pyridazinone,3 2h-pyridazinone,4,5-dibromo-2-phenyl,4,5-bis bromanyl-2-phenyl-pyridazin-3-one,4,5-dibromo-2-phenyl-2-hydropyridazin-3-one
IUPAC Name 4,5-dibromo-2-phenylpyridazin-3-one
InChI Key NQJXEMRMTOSSBQ-UHFFFAOYSA-N
Molecular Formula C10H6Br2N2O
6

Thermo Scientific Chemicals 6-Oxo-1,6-dihydropyridazine-3-carboxylic acid monohydrate, 97%, Thermo Scientific™

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

PubChem CID 305970
CAS 37972-69-3
Molecular Weight (g/mol) 139.09
MDL Number MFCD09064936
SMILES [O-]C(=O)C1=NNC(=O)C=C1
Synonym 6-hydroxypyridazine-3-carboxylic acid,6-hydroxy-3-pyridazinecarboxylic acid,6-oxo-1,6-dihydropyridazine-3-carboxylic acid,6-oxo-1,6-dihydro-pyridazine-3-carboxylic acid,3-hydroxypyridazine-6-carboxylic acid,3-pyridazinecarboxylic acid, 1,6-dihydro-6-oxo,6-hydroxy-pyridazine-3-carboxylic acid,6-oxo-1,6-dihydro-3-pyridazinecarboxylic acid,3-pyridazinecarboxylicacid, 1,6-dihydro-6-oxo,6-oxohydropyridazine-3-carboxylic acid
IUPAC Name 6-oxo-1H-pyridazine-3-carboxylic acid
InChI Key GIFSROMQVPUQFK-UHFFFAOYSA-M
Molecular Formula C5H3N2O3
7

Thermo Scientific Chemicals 3-Aminophthalhydrazide, 98%

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

PubChem CID 10638
CAS 521-31-3
Molecular Weight (g/mol) 177.163
MDL Number MFCD00006890
SMILES C1=CC2=C(C(=C1)N)C(=O)NNC2=O
Synonym luminol,3-aminophthalhydrazide,3-aminophthalic hydrazide,5-amino-2,3-dihydro-1,4-phthalazinedione,1,4-phthalazinedione, 5-amino-2,3-dihydro,3-aminophthalic acid hydrazide,5-amino-1,2,3,4-tetrahydrophthalazine-1,4-dione,unii-5exp385q4f,ccris 5962,3-aminophthalylhydrazide
IUPAC Name 5-amino-2,3-dihydrophthalazine-1,4-dione
InChI Key HWYHZTIRURJOHG-UHFFFAOYSA-N
Molecular Formula C8H7N3O2
8

Thermo Scientific Chemicals 3-Aminophthalhydrazide, 98%, pure

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

PubChem CID 10638
CAS 521-31-3
Molecular Weight (g/mol) 177.16
MDL Number MFCD00006890
SMILES C1=CC2=C(C(=C1)N)C(=O)NNC2=O
Synonym luminol,3-aminophthalhydrazide,3-aminophthalic hydrazide,5-amino-2,3-dihydro-1,4-phthalazinedione,1,4-phthalazinedione, 5-amino-2,3-dihydro,3-aminophthalic acid hydrazide,5-amino-1,2,3,4-tetrahydrophthalazine-1,4-dione,unii-5exp385q4f,ccris 5962,3-aminophthalylhydrazide
IUPAC Name 5-amino-2,3-dihydrophthalazine-1,4-dione
InChI Key HWYHZTIRURJOHG-UHFFFAOYSA-N
Molecular Formula C8H7N3O2
9

Thermo Scientific Chemicals N-Methylmaleic hydrazide, 97%

CAS: 5436-01-1 MDL Number: MFCD00234108

CAS 5436-01-1
MDL Number MFCD00234108
10

Thermo Scientific Chemicals 1(2H)-Phthalazinone, 98+%

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

PubChem CID 8394
CAS 119-39-1
Molecular Weight (g/mol) 146.15
ChEBI CHEBI:34023
MDL Number MFCD00006892
SMILES C1=CC=C2C(=C1)C=NNC2=O
Synonym 1 2h-phthalazinone,phthalazin-1 2h-one,phthalazone,phthalazinone,phthalazin-1-one,1-phthalazinol,phthalazin-1-ol,1-hydroxyphthalazine,1 2h phthalazinone,1,2-dihydrophthalazin-1-one
IUPAC Name 2H-phthalazin-1-one
InChI Key IJAPPYDYQCXOEF-UHFFFAOYSA-N
Molecular Formula C8H6N2O
11

Spectrum Chemical Manufacturing Corporation Luminol, Spectrum™ Chemical
SDP

CAS: 521-31-3

CAS 521-31-3
12

Thermo Scientific Chemicals 3-Phenylcinnoline-4-carboxylic acid, 97%, Thermo Scientific™

CAS: 10604-21-4 Molecular Formula: C15H10N2O2 Molecular Weight (g/mol): 250.257 MDL Number: MFCD00219795 InChI Key: UGJHDXUWDLKCDG-UHFFFAOYSA-N Synonym: 4-cinnolinecarboxylicacid, 3-phenyl,maybridge1_004872,3-phenyl-cinnoline-4-carboxylic acid PubChem CID: 5709072 IUPAC Name: 3-phenylcinnoline-4-carboxylic acid SMILES: C1=CC=C(C=C1)C2=C(C3=CC=CC=C3N=N2)C(=O)O

PubChem CID 5709072
CAS 10604-21-4
Molecular Weight (g/mol) 250.257
MDL Number MFCD00219795
SMILES C1=CC=C(C=C1)C2=C(C3=CC=CC=C3N=N2)C(=O)O
Synonym 4-cinnolinecarboxylicacid, 3-phenyl,maybridge1_004872,3-phenyl-cinnoline-4-carboxylic acid
IUPAC Name 3-phenylcinnoline-4-carboxylic acid
InChI Key UGJHDXUWDLKCDG-UHFFFAOYSA-N
Molecular Formula C15H10N2O2
13

Thermo Scientific Chemicals 4,5-Dichloro-2-(4-methylphenyl)-2,3-dihydropyridazin-3-one, 97%, Thermo Scientific™

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-3-one,4,5-dichloro-2-4-methylphenyl pyridazin-3-one,3 2h-pyridazinone,4,5-dichloro-2-4-methylphenyl,4,5-dichloro-2-p-tolyl-2h-pyridazin-3-one,4,5-dichloro-2-4-methylphenyl-2-hydropyridazin-3-one,4,5-dichloro-2-p-tolyl pyridazin-3 2h-one,4,5-dichloro-2-4-methylphenyl-3 2h-pyridazinone,4,5-dichloro-2-4-methylphenyl pyridazin-3 2h-one,4,5-dichloro-2-4-methylphenyl-2,3-dihydropyridazin-3one 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

PubChem CID 2774757
CAS 33098-21-4
Molecular Weight (g/mol) 255.098
MDL Number MFCD00135290
SMILES CC1=CC=C(C=C1)N2C(=O)C(=C(C=N2)Cl)Cl
Synonym 4,5-dichloro-2-4-methylphenyl-2,3-dihydropyridazin-3-one,4,5-dichloro-2-4-methylphenyl pyridazin-3-one,3 2h-pyridazinone,4,5-dichloro-2-4-methylphenyl,4,5-dichloro-2-p-tolyl-2h-pyridazin-3-one,4,5-dichloro-2-4-methylphenyl-2-hydropyridazin-3-one,4,5-dichloro-2-p-tolyl pyridazin-3 2h-one,4,5-dichloro-2-4-methylphenyl-3 2h-pyridazinone,4,5-dichloro-2-4-methylphenyl pyridazin-3 2h-one,4,5-dichloro-2-4-methylphenyl-2,3-dihydropyridazin-3one
IUPAC Name 4,5-dichloro-2-(4-methylphenyl)pyridazin-3-one
InChI Key OWPCMQKRJFNLHF-UHFFFAOYSA-N
Molecular Formula C11H8Cl2N2O
14

Thermo Scientific Chemicals 4-chloro-1,2-dihydrophthalazin-1-one, 97%, Thermo Scientific™

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

PubChem CID 2775142
CAS 2257-69-4
Molecular Weight (g/mol) 180.59
MDL Number MFCD00102192
SMILES ClC1=NNC(=O)C2=CC=CC=C12
Synonym 4-chlorophthalazin-1 2h-one,4-chloro-1,2-dihydrophthalazin-1-one,4-chlorophthalazin-1-ol,1 2h-phthalazinone, 4-chloro,4-chloro-1 2h-phthalazinone,4-chlorophthalazone,4-chloro-1-phthalazinol,4-chlorophthalazin-1-one,1-chlorophthalazin-4-one,1-chlorophthalazine-4-one
IUPAC Name 4-chloro-2H-phthalazin-1-one
InChI Key QCKGMJDOJRNSMS-UHFFFAOYSA-N
Molecular Formula C8H5ClN2O
15

Thermo Scientific Chemicals Phthalhydrazide, 99%

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

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