Phthalazine

Phthalazine

SCHEMBL8266

c1ccc2cnncc2c1

nearest known ligand 0.50

Full drug profile on Sugi Atlas →

Predicted protein targets (top 20)

geneUniProtsupporting neighboursconfidence
CYP2A6 P11509 3/20 0.50
ALOX12 P18054 1/20 0.50
CYP1A2 P05177 3/20 0.43
PDPK1 O15530 1/20 0.43
MAPT P10636 3/20 0.41
ALDH1A1 P00352 5/20 0.41
KDM4E B2RXH2 3/20 0.41
TP53 P04637 2/20 0.41
CYP3A4 P08684 2/20 0.41
GOT1 P17174 2/20 0.41
SMN1; SMN2 Q16637 2/20 0.41
NPC1 O15118 1/20 0.41
LMNA P02545 1/20 0.41
MPO P05164 1/20 0.41
CYP2D6 P10635 1/20 0.41
PKM P14618 1/20 0.41
MAOA P21397 1/20 0.41
PTGS1 P23219 1/20 0.41
THPO P40225 1/20 0.41
RAB9A P51151 1/20 0.41

Click a target to see other patent compounds predicted against it — the reverse direction, in place.

Similar compounds — the chemically nearest patent molecules

Nearest neighbours by Morgan-fingerprint cosine across the patent-compound collection, with each neighbour's top predicted target and the predicted targets it shares with this molecule.

Compoundsimilaritytop predictedshared targets
Phthalazine SCHEMBL22439995 1.00 CYP2A6 (0.50) CYP2A6ALOX12CYP1A2PDPK1MAPT
Phthalazine SCHEMBL29356700 1.00 CYP2A6 (0.50) CYP2A6ALOX12CYP1A2PDPK1MAPT
Phthalazine SCHEMBL4814019 0.96 CYP2A6 (0.47) CYP2A6ALOX12CYP1A2PDPK1MAPT
Phthalazine SCHEMBL21408963 0.96 CYP2A6 (0.47) CYP2A6ALOX12CYP1A2PDPK1MAPT
Phthalazine SCHEMBL29611751 0.96 CYP2A6 (0.47) CYP2A6ALOX12CYP1A2PDPK1MAPT
Phthalazine SCHEMBL5675695 0.96 CYP2A6 (0.47) CYP2A6ALOX12CYP1A2PDPK1MAPT
Phthalazine SCHEMBL15264828 0.96 CYP2A6 (0.47) CYP2A6ALOX12CYP1A2PDPK1MAPT
Phthalazine SCHEMBL5146220 0.96 CYP2A6 (0.47) CYP2A6ALOX12CYP1A2PDPK1MAPT
Phthalazine SCHEMBL7248567 0.87 CYP2A6 (0.39) CYP2A6ALOX12CYP1A2PDPK1MAPT
Phthalazine SCHEMBL16863114 0.87 CYP1A2 (0.42) CYP2A6ALOX12CYP1A2PDPK1MAPT

Similarity is cosine over the 2,048-bit Morgan fingerprint (≈ Tanimoto). Identical fingerprints score 1.00.

Patent provenance — the patents this molecule appears in, and who filed them

Appears in 69162 patents — a generic fragment claimed broadly, so it's down-weighted as IP noise. Top by claim status then date:

PatentTitleAssigneePublishedPriorityFilingCountryStatus
US-20260146168-A1 MATERIALS FOR FORMING A NUCLEATION-INHIBITING COATING AND DEVICES INCORPORATING SAME OTI LUMIONICS INC. (CA) 2026-05-28 US claimed
US-20260146124-A1 RESIN COMPOSITION AND USES OF THE SAME TAIWAN UNION TECHNOLOGY CORPORATION (TW) 2026-05-28 US claimed
CN-122071610-A Resin composition and use thereof 台燿科技股份有限公司 2026-05-22 CN claimed
CN-122071496-A Organic electroluminescent material and device 环球展览公司 2026-05-22 CN claimed
US-20260143902-A1 ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES UNIVERSAL DISPLAY CORPORATION (US) 2026-05-21 US claimed
US-20260143906-A1 ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES UNIVERSAL DISPLAY CORPORATION (US) 2026-05-21 US claimed
US-20260143961-A1 ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES UNIVERSAL DISPLAY CORPORATION (US) 2026-05-21 US claimed
EP-4742867-A1 HETEROCYCLIC COMPOUND, ORGANIC LIGHT-EMITTING DEVICE INCLUDING THE SAME, AND ELECTRONIC APPARATUS Samsung Electronics Co., Ltd. (KR) 2026-05-13 EP claimed
US-12624055-B2 Organic electroluminescent materials and devices UNIVERSAL DISPLAY CORPORATION (US) 2026-05-12 US claimed
EP-3800677-B1 ORGANIC LIGHT-EMITTING DEVICE AND APPARATUS INCLUDING THE SAME SAMSUNG DISPLAY CO LTD (KR) 2026-05-06 EP claimed
EP-0004872-A2 Solution for the etching of silicon wafers having a well-defined etching rate and method resulting therefrom International Business Machines Corporation (US) 1979-10-31 EP claimed
US-4169733-A PRETREATMENT WITH NITROGEN HETEROCYCLE SUBSTITUTED WITH MERCAPTO, THIOKETONE OR THIOETHER GROUP OF SILVER HALIDE EMULSION CONTAINING A TETRAZOLIUM COMPOUND KONISHIROKU PHOTO INDUSTRY CO., LTD. (JP) 1979-10-02 US claimed
US-4155866-A Method of controlling silicon wafer etching rates-utilizing a diazine catalyzed etchant INTERNATIONAL BUSINESS MACHINES CORPORATION (US) 1979-05-22 US claimed
US-4148870-A COMPLEX OF OSMIUM TETROXIDE USED IN FIXING AND STAINING CELLS FOR ELECTRON MICROSCOPY JOHNSON, MATTHEY & CO., LIMITED (GB) 1979-04-10 US claimed
US-4123282-A PHTHALAZINE, AROMATIC ACID OR ANHYDRIDE MINNESOTA MINING AND MANUFACTURING COMPANY (US) 1978-10-31 US claimed
US-4110237-A Compositions containing a diazine and a halogen compound for catalyzing copper etching solutions Tokai Denka Kabushiki Kaisha (JP) 1978-08-29 US claimed
US-4100158-A COMPLEX OF OSMIUM TETROXIDE AND PYRIDAZINE, PHTHALAZINE, ISOQUINOLINE, TRIETHYLENEDIAMINE OR QUINUCLIDONE JOHNSON, MATTHEY & CO., LIMITED (GB) 1978-07-11 US claimed
US-4085098-A Azo dyes containing a heterocyclic ring having a quaternized nitrogen atom and at least one optionally substituted phenoxyalkyl or naphthyloxyalkyl substituent SANDOZ LTD. (CH) 1978-04-18 US claimed
US-3957776-A HYPOTENSIVE AGENTS DELMAR CHEMICALS LIMITED (CA) 1976-05-18 US claimed
US-3936332-A DIAZINE, PEROXYSULFATE, HALOGEN COMPOUND TOKAI DENKA KOGYO KABUSHIKI KAISHA (JA) 1976-02-03 US claimed