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CC(C)(C)c1ccc2occ(CC(=O)Nc3ccccc3F)c2c1
[ 5.050600051879883, 0.7319008708000183, 2.084094524383545 ]
CC1CC(C)CC(Nc2cncc(-c3nncn3C)c2)C1
[ 3.1136999130249023, 0.9411116242408752, 3.4320037364959717 ]
N#Cc1ccc(-c2ccc(OC(C(=O)N3CCCC3)c3ccccc3)cc2)cc1
[ 4.967780113220215, 0.6261045336723328, 2.470632553100586 ]
CCOC(=O)C1CCCN(C(=O)c2nc(-c3ccc(C)cc3)n3c2CCCCC3)C1
[ 4.000219821929932, 0.7162244915962219, 2.822753429412842 ]
N#CC1=C(SCC(=O)Nc2cccc(Cl)c2)N=C([O-])C(C#N)C12CCCCC2
[ 3.609560012817383, 0.8095718026161194, 4.035181999206543 ]
CC[NH+](CC)C(C)(CC)C(O)c1cscc1Br
[ 2.637399911880493, 0.8271497488021851, 5.091437339782715 ]
COc1ccc(C(=O)N(C)C(C)CC(N)=NO)cc1O
[ 0.9977999925613403, 0.32273200154304504, 2.852316379547119 ]
O=C(Nc1nc[nH]n1)c1cccnc1Nc1cccc(F)c1
[ 2.334700107574463, 0.6867867112159729, 2.6278574466705322 ]
Cc1c(C=Nc2cc(Br)ccn2)c(O)n2c(nc3ccccc32)c1C#N
[ 4.281300067901611, 0.5036973357200623, 3.0739352703094482 ]
CC1CN(C(=O)c2cc(Br)cn2C)CCC1[NH3+]
[ 0.8801000118255615, 0.8223798274993896, 3.9479334354400635 ]
CCOc1ccc(OCC)c(C2C(C#N)=C(N)N(c3ccccc3C(F)(F)F)C3=C2C(=O)CCC3)c1
[ 5.80757999420166, 0.5421262979507446, 3.1732022762298584 ]
Cc1ccc2nc(SC(C)C(=O)NC3CCC(C)CC3)n(C)c(=O)c2c1
[ 3.417419910430908, 0.6588013768196106, 2.692305564880371 ]
O=C(N1CCc2c(F)ccc(F)c2C1)C1(O)Cc2ccccc2C1
[ 2.3794000148773193, 0.8726164698600769, 2.7331998348236084 ]
Cc1ccccc1C(=O)N1CCC2(CC1)CC(c1ccccc1)C(=O)N2C
[ 3.61572003364563, 0.8187136650085449, 3.3503522872924805 ]
CCCc1cc(NC(=O)CN2C(=O)NC3(CCC(C)CC3)C2=O)n(C)n1
[ 1.8118000030517578, 0.7819128632545471, 3.0775671005249023 ]
CC(C)Cc1nc(SCC(=O)NCC2CCCO2)c2c(=O)n(C)c(=O)n(C)c2n1
[ 0.6129999756813049, 0.5154656171798706, 3.1125333309173584 ]
Cc1ccc(CNC(=O)c2ccccc2NC(=O)C2CC(=O)N(c3ccc(C)cc3)C2)cc1
[ 4.225039958953857, 0.6010761857032776, 2.42903733253479 ]
CCCCC(=O)NC(=S)Nc1ccccc1C(=O)N1CCOCC1
[ 2.1621999740600586, 0.7973995804786682, 2.0379152297973633 ]
Cc1c(NC(=O)CSc2nc3sc4c(c3c(=O)[nH]2)CCCC4)c(=O)n(-c2ccccc2)n1C
[ 3.3920199871063232, 0.3360925018787384, 2.6221776008605957 ]
CC(C)C(Oc1cccc(Cl)c1)C(=O)N1CCC(n2cccn2)CC1
[ 3.8036000728607178, 0.8132683038711548, 2.940469264984131 ]
CCN(CC)C(=O)CC(C)[NH2+]C(C)c1cccc(F)c1F
[ 2.2362000942230225, 0.8234591484069824, 3.878253936767578 ]
Cc1nc2c(c(Nc3ncc(C)s3)n1)CCN(C(=O)CCc1ccccc1)C2
[ 3.811039924621582, 0.7136614918708801, 2.5456862449645996 ]
O=C(NCCNC(=O)N1CC2CC=CCC2C1)c1cccnc1
[ 1.4190000295639038, 0.6518361568450928, 3.194352149963379 ]
O=c1n(CCO)c2ccccc2n1CCO
[ -0.21240000426769257, 0.7516963481903076, 2.1086347103118896 ]
COC(=O)Cc1csc(NC(=O)Cc2coc3cc(C)ccc23)n1
[ 3.0944199562072754, 0.7193883061408997, 2.308817148208618 ]
Cc1ccc(N2CCC(NS(=O)(=O)c3ccccc3C)C2=O)cc1C
[ 2.69566011428833, 0.913741946220398, 2.595621109008789 ]
CCC(C)CC(C)NC(=O)N1CCN(CC(=O)NC2CC2)CC1
[ 1.4169000387191772, 0.7442311644554138, 2.906806468963623 ]
CC(=O)Nc1c2n(c3ccccc13)CC(C)(C(=O)NC1CCCCC1)N(C1CCCCC1)C2=O
[ 4.595799922943115, 0.6938903331756592, 3.1983611583709717 ]
N#Cc1ccncc1NCC1CC12CCc1ccccc12
[ 3.269279956817627, 0.9349017143249512, 3.918602228164673 ]
Cc1cccn2c(=O)c(C(=O)NCC3CCOC3C(C)C)cnc12
[ 1.7938200235366821, 0.9281163811683655, 3.4490861892700195 ]
CNC(=O)c1ccc(C=CC(=O)Nc2c(C)cc(C)nc2Cl)cc1
[ 3.363339900970459, 0.6601699590682983, 2.239471912384033 ]
CC1=C(CNC(=O)c2cc(-c3ccccc3)nc3c2CNN3C(C)C)CN=N1
[ 3.451200008392334, 0.8373244404792786, 3.350933313369751 ]
CC(NC(=O)COC(=O)C=Cc1ccc(Cl)cc1)c1ccccc1
[ 3.7737998962402344, 0.641261637210846, 2.257847785949707 ]
CCc1ccc(N(Cc2ccc(C)s2)C(=O)c2ccc(=O)n(C)n2)cc1
[ 3.559619903564453, 0.6927908658981323, 2.398371934890747 ]
CCOC(=O)c1nnc2ccccc2c1N1CCC([NH+](CC)CC)C1
[ 1.3099000453948975, 0.801642119884491, 3.8898396492004395 ]
Cc1ccc(C#N)cc1S(=O)(=O)NCc1ccnc(OC(C)(C)C)c1
[ 2.9175000190734863, 0.8859809041023254, 2.4586682319641113 ]
O=C(OC1CCOC1)C1(c2ccc(Cl)c(Cl)c2)CCC1
[ 3.7472000122070312, 0.7970806360244751, 2.9338674545288086 ]
CCC[NH2+]C1COCC1C(=O)NCc1cscc1C
[ 0.6611199975013733, 0.8057363033294678, 4.591978549957275 ]
O=C(NCc1nccc2ccccc12)c1ccc[nH]c1=O
[ 1.8530999422073364, 0.7680249214172363, 2.158780097961426 ]
CC(=O)c1ccc(S(=O)(=O)N2CCCCC2C)cc1
[ 2.4523000717163086, 0.7996664047241211, 2.276808261871338 ]
O=[N+]([O-])c1c(Nc2cccc3ncccc23)ncnc1N1CCN(c2cccc(Cl)c2)CC1
[ 4.656599998474121, 0.3381551504135132, 2.399710178375244 ]
O=C(CCCO)Nc1ccc(F)cc1F
[ 1.6757999658584595, 0.8022630214691162, 1.7280306816101074 ]
NC(=O)CCOc1ccc(NC(=O)CC2CCc3ccccc32)cc1
[ 2.9993999004364014, 0.8140889406204224, 2.459113836288452 ]
COc1cc(C)ccc1OCC(=O)Nc1nnc(C)s1
[ 2.181040048599243, 0.9143568277359009, 1.9120490550994873 ]
CC(=O)c1c(O)cccc1COc1ccccc1
[ 3.173799991607666, 0.8374728560447693, 1.8104199171066284 ]
CCn1cc(S(=O)(=O)N2CCCCCC2c2cc(-c3ccc(F)cc3)no2)cn1
[ 4.0030999183654785, 0.625490665435791, 3.001570224761963 ]
COC(=O)C(NC(=O)c1cccc(Cl)c1)(Nc1ccc(Br)c[nH+]1)C(F)(F)F
[ 3.1900999546051025, 0.5227468609809875, 3.7886245250701904 ]
Cc1[nH]c2ccc(C(=O)Nc3cc(C(C)(C)C)nn3-c3ncccn3)cc2c1C
[ 4.310239791870117, 0.5472752451896667, 2.5228512287139893 ]
Cc1noc(C)c1CC(C)C(=O)NC(C)C1CCCCC1
[ 3.555039882659912, 0.9025330543518066, 3.1663215160369873 ]
CCn1cc(C(=O)NC2CC(=O)N(C)C2)c(C(C)C)n1
[ 0.9868999719619751, 0.8927022814750671, 3.1003880500793457 ]
COc1cccc(-c2cncc3ccccc23)c1C(=O)N(C(C)C)C(C)C
[ 5.169400215148926, 0.6287330985069275, 2.3940343856811523 ]
COc1ccc(C(C)NC(=O)Cc2cccc3ccccc23)cc1
[ 4.2683000564575195, 0.7625341415405273, 2.1218409538269043 ]
O=C1CC(c2nc(-c3cccnc3)no2)CN1c1cccc(Cl)c1
[ 3.305500030517578, 0.7310808300971985, 2.688926935195923 ]
CC1CCCN(c2ccc(C(=O)Nc3ccc(N4CCOCC4)cc3)cc2[N+](=O)[O-])C1
[ 3.9200000762939453, 0.5781885981559753, 2.616748809814453 ]
C=CCN(C(=O)CC=Cc1ccc(C)cc1)C1CCS(=O)(=O)C1
[ 2.600019931793213, 0.7520497441291809, 3.079857349395752 ]
O=C(CSc1nnc(-c2cccc([N+](=O)[O-])c2)o1)Nc1nncs1
[ 2.227099895477295, 0.3961964547634125, 2.465155839920044 ]
CN(CCc1ccc(F)cc1)c1cc(Br)cc(F)c1C(N)=O
[ 3.5051000118255615, 0.8770526647567749, 2.310321092605591 ]
COc1ccccc1NC(=O)CSc1ccc(-c2ccccc2OC)nn1
[ 3.8915998935699463, 0.6260820031166077, 2.0069797039031982 ]
Cc1occc1C(=O)C(C#N)=Cc1cccc(C(F)(F)F)c1
[ 4.396699905395508, 0.4796668291091919, 2.477264165878296 ]
COc1ccc2c(c1)N(C(=O)CCSc1ccccn1)CC(C)O2
[ 3.3864998817443848, 0.7784015536308289, 2.863882303237915 ]
CCC(NC(=O)C(C)n1cccn1)c1ccc(C)c(F)c1
[ 3.1591200828552246, 0.9187463521957397, 3.0063793659210205 ]
CCCC1(C(=O)NC2CONC2=O)CC[NH2+]C1
[ -1.7137999534606934, 0.5484684109687805, 4.9887471199035645 ]
O=C(c1cc2cc([N+](=O)[O-])ccc2oc1=O)N1CCN(Cc2ccccc2)CC1
[ 2.6591999530792236, 0.3840506374835968, 2.1188063621520996 ]
CCn1c(CC2CC[NH2+]CC2)nn(CCO)c1=O
[ -1.4270999431610107, 0.677286684513092, 3.8599603176116943 ]
C=CCn1c(SC(C)C(=O)N2CCC(C)CC2)nnc1-c1ccc(Cl)cc1
[ 4.523600101470947, 0.5241289138793945, 2.745497465133667 ]
CCOC1C(=O)OC(C(O)CO)C1=O
[ -1.7608000040054321, 0.41596749424934387, 4.085910797119141 ]
Cc1ccc(-c2nnc(C[NH+](CCO)C3CCc4ccccc43)o2)cc1
[ 2.10971999168396, 0.7147061824798584, 3.930487871170044 ]
Cc1cc(-n2c(C)cc(C[NH2+]C(C)c3ccc(F)c(F)c3)c2C)no1
[ 3.4933600425720215, 0.7686470746994019, 3.745734930038452 ]
CC(NC(=O)Nc1ccn(-c2ncccc2Cl)n1)C1CCCO1
[ 2.6096999645233154, 0.8995436429977417, 3.29679799079895 ]
COc1cc(S(=O)(=O)N2CCN=C2Cc2ccccc2)ccc1Cl
[ 2.9941000938415527, 0.8190186619758606, 2.3436667919158936 ]
COc1ccc(OC)c(C=C2Oc3cc(OC(=O)c4ccncc4)cc(C)c3C2=O)c1
[ 4.24261999130249, 0.34869205951690674, 2.518787384033203 ]
COc1ccc(C(NC(=O)Nc2cc(C)ccc2Cl)C2CCOCC2)cc1
[ 4.946420192718506, 0.7616411447525024, 2.5969667434692383 ]
CC(Cc1cccs1)N(C)CC1CCCCC1[NH3+]
[ 2.411600112915039, 0.8724561929702759, 4.054198741912842 ]
CC([NH3+])c1nc2cc(C(F)(F)F)ccc2n1C
[ 1.8949999809265137, 0.8177043199539185, 3.315049648284912 ]
COc1cccc(CN2CCc3nnc(CCc4ccccc4)n3CC2)c1
[ 3.130199909210205, 0.6757000684738159, 2.110015392303467 ]
O=C(NC1CCS(=O)(=O)C1)C1CC[NH2+]CC1
[ -1.736899971961975, 0.6079491972923279, 4.149956226348877 ]
COCCC(C)C(=O)NC(C)COC
[ 0.8101000189781189, 0.6658062934875488, 2.9364991188049316 ]
Cc1cc(N(C)C)ccc1NC(=O)c1ccc(CN2CC[NH+](C)CC2)cc1
[ 1.6436200141906738, 0.8441630601882935, 2.898803949356079 ]
CC(CNC(=O)C1CC[NH2+]C1C)C[NH+]1CCCC1
[ -1.61080002784729, 0.5438606142997742, 5.9488115310668945 ]
CN(C)c1ccc(C(CNC(=O)C(=O)Nc2ccccc2C#N)N2CC[NH+](C)CC2)cc1
[ 0.2505800127983093, 0.5660136938095093, 3.623964786529541 ]
CCOc1ncnc(S(=O)(=O)CC)c1N
[ 0.25110000371932983, 0.7462225556373596, 2.791968822479248 ]
CCC(NC(=O)N(C)Cc1ccc(-c2ccccc2)cc1)c1ccncc1
[ 5.041299819946289, 0.6699023842811584, 2.4643845558166504 ]
O=C(Nc1ccc(-c2nc3ccccc3o2)cc1)C1CCCN1S(=O)(=O)c1ccc(F)cc1
[ 4.4257001876831055, 0.4709011912345886, 2.586244583129883 ]
CCC(C)CNc1nc2ccc(Cl)cc2s1
[ 4.407700061798096, 0.8744122982025146, 2.588799238204956 ]
Cc1cc(C)c2nc(N3CCN(C(=O)C4CCCCN4S(C)(=O)=O)CC3)sc2c1
[ 2.375839948654175, 0.7386054396629333, 2.906325340270996 ]
CCc1nnc(-c2cc3ccccc3n2CC(=O)NC(C)(C)C)o1
[ 3.1684000492095947, 0.7990408539772034, 2.4218332767486572 ]
CCc1ccc(NC(=O)c2nn(-c3ccc(CC)cc3)ccc2=O)cc1
[ 3.609600067138672, 0.766718864440918, 2.0225706100463867 ]
Cc1ccc(C(=O)NC2CCC[NH2+]C2C)cc1F
[ 0.9782199859619141, 0.8083544969558716, 3.817035675048828 ]
CC(OC(=O)c1nc(C2CC2)n2ccccc12)c1cnc2ccccc2c1
[ 4.6778998374938965, 0.49778804183006287, 2.9498095512390137 ]
CCCCOc1ccccc1CC([NH3+])C(=O)[O-]
[ -0.23160000145435333, 0.6653069257736206, 3.359961748123169 ]
CCCC1CN(C(=O)C(=O)Nc2ccc(C)nc2Cl)CCO1
[ 2.0094199180603027, 0.6813748478889465, 2.9673044681549072 ]
CC1C(=O)N(c2ccc3c(c2)CCC3)CCN1C(=O)c1ccc(Cl)c(Cl)c1
[ 4.359600067138672, 0.7478528022766113, 2.731354236602783 ]
COC(=O)C1(NC(=O)C2CC2c2c(F)cccc2F)CCSCC1
[ 2.623300075531006, 0.8439021706581116, 3.536271333694458 ]
N#CC1(NC(=O)COc2cccc(Cl)c2)CCCC1
[ 2.671380043029785, 0.9209160804748535, 2.1940720081329346 ]
COC1CC[NH+](CCNc2nccn(C)c2=O)CC1
[ -1.1140999794006348, 0.7098239064216614, 3.9682772159576416 ]
C=CCN(Cc1cccc([N+](=O)[O-])c1)C(=O)Nc1cc(OC)ccc1Cl
[ 4.476900100708008, 0.4390394389629364, 2.2040045261383057 ]
Cc1cc(Cl)ccc1OCC(=O)NN=Cc1ccccn1
[ 2.5725200176239014, 0.681849479675293, 2.0755820274353027 ]
O=C1NC(=S)NC(=O)C1=CNc1ccc([N+](=O)[O-])cc1O
[ 0.12710000574588776, 0.15561042726039886, 2.703932762145996 ]
Cc1c(C(=O)N2CCOCC2)oc2c1-c1nn(CC(=O)NCc3ccco3)cc1CC2
[ 1.931920051574707, 0.6714852452278137, 2.8452606201171875 ]
CCc1ccc(CNC(=O)c2ccc(-c3nccnc3N3CCCCC3)cc2)cc1
[ 4.626299858093262, 0.6555767059326172, 2.0859456062316895 ]
End of preview. Expand in Data Studio

nico8771/zinc_clean — cleaned ZINC-250k

Each row is a molecule as canonical SMILES plus RDKit-recomputed targets. Charged groups (N+/O-) are preserved.

Source: torch_molecule ZINC-250k (HuggingFace). Code: https://github.com/Nico-Conti/flow-matching-molecules (dataset/).

Schema

column type description
smiles string canonical, kekulizable, single-fragment SMILES (post-sanitize)
y list[float] RDKit targets, columns = logP, qed, SAS

Pipeline

  1. Parse with RDKit; unparseable dropped.
  2. Standardize — remove stereochemistry, sanitize (charges preserved; N+/O- kept).
  3. Kekulize over atom vocab (C, N, O, F, P, S, Cl, Br, I, N+, O-); atoms outside the vocab dropped.
  4. Round-trip checksmiles -> (X, E) -> mol -> smiles must reproduce the canonical molecule as a single fragment (filter applied).

Bonds use 4 classes (none / single / double / triple). Targets (logP, qed, SAS) are recomputed from the canonical SMILES with RDKit.

Drop / keep counts (this build)

outcome count
drop_roundtrip 1
drop_vocab 2,005
kept 247,449

Kept: 247,449 molecules.

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