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Murcko scaffold

1(2H)-Phthalazinone scaffold

487 chemicals on CompoundList share this ring system.

Rings
2
Scaffold atoms
11
Chemicals
487
With full pages
85
Scaffold SMILES

O=c1[nH]ncc2ccccc12

A Bemis-Murcko scaffold is what remains of a molecule when every side chain is removed: the rings and the chains that link them. Chemicals that share a scaffold often belong to the same compound series, which helps when you look for analogues, alternative suppliers or related building blocks.

Substructure search with this scaffoldOpen the 1(2H)-Phthalazinone page
Murcko scaffold O=c1[nH]ncc2ccccc12

Computed from the structures of the chemicals listed here. Stereo and charges are removed before the scaffold is taken.

Chemicals with this scaffold

Open one to see its structure, properties and suppliers.

Showing 1 to 48 of 487 chemicals

1(2H)-Phthalazinone chemical structure, C8H6N2O, CAS 119-39-1
1(2H)-Phthalazinone
CAS 119-39-1C8H6N2O
1-Hydroxy-4-methylphthalazine chemical structure, C9H8N2O, CAS 5004-48-8
1-Hydroxy-4-methylphthalazine
CAS 5004-48-8C9H8N2O
Oxagrelate chemical structure, C14H16N2O4, CAS 56611-65-5
Oxagrelate
CAS 56611-65-5C14H16N2O4
4-(2-Acetylhydrazino)-phthalazinone chemical structure, C10H10N4O2, CAS 65846-18-6
4-(2-Acetylhydrazino)-phthalazinone
CAS 65846-18-6C10H10N4O2
1,4-Phthalazinedione, 2,3-dihydro-, monohydrazone chemical structure, C8H8N4O, CAS 14161-35-4
1,4-Phthalazinedione, 2,3-dihydro-, monohydrazone
CAS 14161-35-4C8H8N4O
1(2H)-Phthalazinone, 4-methyl-8-nitro- chemical structure, C9H7N3O3, CAS 16676-79-2
1(2H)-Phthalazinone, 4-methyl-8-nitro-
CAS 16676-79-2C9H7N3O3
1(2H)-Phthalazinone, 8-amino-4-methyl- chemical structure, C9H9N3O, CAS 16676-82-7
1(2H)-Phthalazinone, 8-amino-4-methyl-
CAS 16676-82-7C9H9N3O
2-(4-Oxo-3,4-dihydrophthalazin-1-yl)acetohydrazide chemical structure, C10H10N4O2, CAS 25947-18-6
2-(4-Oxo-3,4-dihydrophthalazin-1-yl)acetohydrazide
CAS 25947-18-6C10H10N4O2
2-Ethylphthalazin-1(2H)-one chemical structure, C10H10N2O, CAS 63536-33-4
2-Ethylphthalazin-1(2H)-one
CAS 63536-33-4C10H10N2O
7-Nitrophthalazin-1(2H)-one chemical structure, C8H5N3O3, CAS 89898-94-2
7-Nitrophthalazin-1(2H)-one
CAS 89898-94-2C8H5N3O3
2-Methylphthalazin-1-one chemical structure, C9H8N2O, CAS 6091-81-2
2-Methylphthalazin-1-one
CAS 6091-81-2C9H8N2O
2-(Hydroxymethyl)phthalazin-1-one chemical structure, C9H8N2O2, CAS 941-95-7
2-(Hydroxymethyl)phthalazin-1-one
CAS 941-95-7C9H8N2O2
1(2H)-Phthalazinone, 4-[(2-hydroxyethyl)amino]- chemical structure, C10H11N3O2, CAS 23279-81-4
1(2H)-Phthalazinone, 4-[(2-hydroxyethyl)amino]-
CAS 23279-81-4C10H11N3O2
1(2H)-Phthalazinone, 4-[(3-hydroxypropyl)amino]- chemical structure, C11H13N3O2, CAS 53442-56-1
1(2H)-Phthalazinone, 4-[(3-hydroxypropyl)amino]-
CAS 53442-56-1C11H13N3O2
4-(4-Hydroxybutylamino)-2H-phthalazin-1-one chemical structure, C12H15N3O2, CAS 59940-27-1
4-(4-Hydroxybutylamino)-2H-phthalazin-1-one
CAS 59940-27-1C12H15N3O2
4-(2-Hydroxypropylamino)-2H-phthalazin-1-one chemical structure, C11H13N3O2, CAS 59940-30-6
4-(2-Hydroxypropylamino)-2H-phthalazin-1-one
CAS 59940-30-6C11H13N3O2
4-((2-Hydroxyethyl)(methyl)amino)phthalazin-1(2H)-one chemical structure, C11H13N3O2, CAS 59940-33-9
4-((2-Hydroxyethyl)(methyl)amino)phthalazin-1(2H)-one
CAS 59940-33-9C11H13N3O2
4-(2-Diethylaminoethylamino)-2H-phthalazin-1-one chemical structure, C14H20N4O, CAS 59940-34-0
4-(2-Diethylaminoethylamino)-2H-phthalazin-1-one
CAS 59940-34-0C14H20N4O
4-(2-Hydroxyethoxy)-2H-phthalazin-1-one chemical structure, C10H10N2O3, CAS 69776-14-3
4-(2-Hydroxyethoxy)-2H-phthalazin-1-one
CAS 69776-14-3C10H10N2O3
Ethyl 1-hydroxy-4-(hydroxymethyl)-6-phthalazinecarboxylate chemical structure, C12H12N2O4, CAS 76798-75-9
Ethyl 1-hydroxy-4-(hydroxymethyl)-6-phthalazinecarboxylate
CAS 76798-75-9C12H12N2O4
4-Butoxyphthalazin-1(2H)-one chemical structure, C12H14N2O2, CAS 7403-78-3
4-Butoxyphthalazin-1(2H)-one
CAS 7403-78-3C12H14N2O2
2-(4-Oxo-3,4-dihydrophthalazin-1-yl)acetic acid chemical structure, C10H8N2O3, CAS 25947-11-9
2-(4-Oxo-3,4-dihydrophthalazin-1-yl)acetic acid
CAS 25947-11-9C10H8N2O3
Ethyl 2-(4-oxo-3,4-dihydrophthalazin-1-yl)acetate chemical structure, C12H12N2O3, CAS 25947-13-1
Ethyl 2-(4-oxo-3,4-dihydrophthalazin-1-yl)acetate
CAS 25947-13-1C12H12N2O3
2-(3-Methyl-4-oxo-3,4-dihydrophthalazin-1-yl)acetohydrazide chemical structure, C11H12N4O2, CAS 28081-62-1
2-(3-Methyl-4-oxo-3,4-dihydrophthalazin-1-yl)acetohydrazide
CAS 28081-62-1C11H12N4O2