ZINC Database by Vendor
These databases have been provided to us under collaborative agreements with each respective vendor. Molecules in the original catalogs may not appear in ZINC because they do not pass our filters, or they have not been processed yet. ZINC may be used free of charge for research by individuals and institutions. Whereas you are free to share the results of a ZINC search or a screen of molecules from ZINC, you may not redistribute major portions of ZINC without the express written permission of John Irwin. Additional usage notes may be found below the table.
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Vendor Information

Name
Email
Phone
Fax

Catalog Information

Source entries
Version/Date

ZINC Information

Loaded
Filtered
Sole source
Depleted

Diversity Information

Cluster representatives
at a given Tanimoto cutoff

ACB Blocks
info at acbblocks.com 
p.+7 095 761 4365
f.+7 095 412 2787
2325
2006.04
2928 download
143
772
NYA
90%:1223
80%:594
70%:345
60%:199
Acros Organics
info at acros.com 
p.N/A
f.+32 14 59 34 34
20916
2006.4
13754 download
7061
1093
NYA
90%:7093
80%:3572
70%:1552
60%:720
Alfa-Aesar
info at alfa.com 
p.+1 978 521 6300
f.+1 978 521 6350
23920
2005.6
12767 download
10549
639
NYA
90%:6679
80%:3007
70%:1252
60%:558
AnalytiCon Discovery
sales at ac-discovery.com 
p.+49 (0) 331 2300-300
f.+49 (0) 331 2300-333
14654
2007-01-31
13451 download
44
11587
NYA
90%:3083
80%:729
70%:209
60%:79
Apollo Scientific
sales at apolloscientific.co.uk 
p.+44 161 406 0505
f.+44 161 406 0506
9451
2005.6
19852 download
4963
366
NYA
90%:12744
80%:7260
70%:3788
60%:1793
Asinex
sales at asinex.com 
p.+7 095 780 3411
f.+7 095 780 3419
372187
2006.3
322996 download
125100
39442
NYA
90%:82464
80%:32301
70%:12256
60%:4370
Aurora Feinchemie
office at aurora-feinchemie.com 
p.+43 316 58 67 38
f.+43 316 58 47 44
51082
2006.4
33971 download
24808
5703
NYA
90%:12311
80%:7145
70%:4097
60%:2051
Bachem
sales at bachem.com 
p.+1 800 634 3183
f.+1 610 239 0800
6470
2005.6
2883 download
3196
372
NYA
90%:968
80%:363
70%:174
60%:102
ChemBridge
sales at chembridge.com 
p.858 451 7400
f.858 451 7401
420000
2006.6
455439 download
107189
81949
NYA
90%:82551
80%:34029
70%:13864
60%:5135
ChemDiv
chemdiv at chemdiv.com 
p.858-794-4860
f.858-794-4931
349977
2006.5
414143 download
137686
226072
NYA
90%:N/A
80%:N/A
70%:N/A
60%:N/A
Chemical Block
orders at chemical-block.com 
p.+7 095 1356343
f.+7 095 1372966
123290
2006.3
108292 download
40980
15712
NYA
90%:47053
80%:25638
70%:12488
60%:5065
Combi-Blocks
sales at combi-blocks.com 
p.+1 877 525 6257
f.+1 858 635 8991
1141
2005.11
437 download
695
84
NYA
90%:295
80%:170
70%:101
60%:50
ComGenex
info at comgenex.com 
p.650 246 1470
f.650 244 0795
180000
2006.3
83895 download
125711
81775
NYA
90%:10180
80%:2875
70%:988
60%:370
Digital Specialty Chemicals
sales at digitalchem.com 
p.+1 603 563 5060
f.+1 603 563 9288
1818
2004.5
475 download
1379
62
NYA
90%:301
80%:222
70%:160
60%:116
Enamine
enamine at enamine.net 
p.+380 44 537 3218
f.+380 44 537 3253
470000
2006.6
876780 download
210704
419986
NYA
90%:288905
80%:100460
70%:25945
60%:6140
FDA-approved drugs (via DSSTOX)
no email 
p.N/A
f.N/A
1217
2005-03-01
2460 download
28
316
NYA
90%:931
80%:754
70%:617
60%:462
Frinton
sales at frinton.com 
p.Tel
f.Fax
5000
2005.10
1170 download
197
107
NYA
90%:806
80%:579
70%:366
60%:179
IBScreen
screen at ibscreen.chg.ru 
p.+7 (095) 788 0651
f.+7 (095) 788 0652
342438
2006.3
481177 download
129802
139622
NYA
90%:97329
80%:41401
70%:17289
60%:6277
Individual Suppliers
email 
p.phone
f.fax
100
current
3 download
0
0
NYA
90%:N/A
80%:N/A
70%:N/A
60%:N/A
Indofine
chemical at indofinechemical.com 
p.+1 908 359 6778
f.+1 908 359 1179
1332
2005.11
1505 download
18
270
NYA
90%:397
80%:183
70%:101
60%:72
KeyOrganics
enquiries at keyorganics.ltd.uk 
p.+44 1840 212137
f.+44 1840 213712
50000
2004-08-01
32672 download
0
3821
NYA
90%:17756
80%:10593
70%:5820
60%:2598
Lab molecules
email 
p.phone
f.fax
100
current
0 download
0
0
NYA
90%:N/A
80%:N/A
70%:N/A
60%:N/A
Life Chemicals
sales at lifechemicals.com 
p.+1 905 634 5212
f.+1 905 634 4719
200000
2006.5
170752 download
0
57415
NYA
90%:35289
80%:16440
70%:7068
60%:2950
LOPAC1280
sales at sial.com 
p.phone
f.fax
1280
2005.10
1507 download
26
321
NYA
90%:942
80%:797
70%:659
60%:501
Maybridge
orders at maybridge.com 
p.+44 1840 770467
f.+44 1840 770111
59284
2006.5
72766 download
11158
3750
NYA
90%:44131
80%:25382
70%:11574
60%:4132
MicroSource
sales at msdiscovery.com 
p.+1 (860) 350-8078
f.+1 (860) 354-5300
4000
2004-10
3031 download
165
23
NYA
90%:1278
80%:991
70%:733
60%:485
Molecular Diversity Preservation International
lin at mpdi.org 
p.+41 61 683 7734
f.+41 61 302 8918
10653
2005.6
14065 download
2248
2167
NYA
90%:6062
80%:3971
70%:2430
60%:1354
Nanosyn
sales at nanosyn.com 
p.+1 650 853 7030
f.+1 650 853 7031
58587
2004-08-01
61185 download
14540
6015
NYA
90%:25895
80%:13170
70%:6640
60%:2995
National Cancer Institute
dtpinfo at mail.nih.gov 
p.no phone
f.no fax
260071
Nov 2003
284148 download
0
12890
NYA
90%:80660
80%:42851
70%:22686
60%:11133
Oakwood Chemical
sales at oakwoodchemical.com 
p.+1 803 739 8800
f.+1 803 739 6957
19600
2005.6
15662 download
2285
3087
NYA
90%:8420
80%:4343
70%:2072
60%:930
Otava
info at otavachemicals.com 
p.(+380 44) 2522389
f.(+380 44) 2522458
196592
2006.5
201833 download
80410
78825
NYA
90%:34767
80%:13629
70%:5889
60%:2430
Peakdale
sales at peakdale.com 
p.+1 302 838 0420
f.+1 302 838 0421
8548
2006
8123 download
1622
1738
NYA
90%:3697
80%:1609
70%:712
60%:320
PepTech
service at peptechcorp.com 
p.+1 781 273 5400 +1 7
f.6000
1318
2005.6
1313 download
183
437
NYA
90%:367
80%:161
70%:58
60%:20
Pharmeks
sales at pharmeks.com 
p.+7 (095) 702-9648
f.+7 (095) 702-9648
105602
2006.5
159432 download
0
45808
NYA
90%:44407
80%:22459
70%:11526
60%:5170
PubChem
email 
p.phone
f.fax
4300000
2006.1
2580343 download
271411
651993
NYA
90%:N/A
80%:N/A
70%:N/A
60%:N/A
Ryan Scientific
sales at ryansci.com 
p.843 884 4911
f.843 884 5568
59696
2006.5
47929 download
0
73
NYA
90%:30917
80%:18186
70%:8681
60%:3333
Sigma-Aldrich
sales at sigma-aldrich.com 
p.800-325-3010
f.
295652
2006.5
115595 download
0
12894
NYA
90%:43633
80%:19722
70%:8804
60%:3634
Specs
info at specs.net 
p.+1 401 782 2994
f.410 772 3206
200946
2006.8
252705 download
70581
49873
NYA
90%:88244
80%:38726
70%:16823
60%:6606
SynChem
sales at synchem.com 
p.phone
f.fax
825
2007
829 download
13
209
NYA
90%:581
80%:344
70%:230
60%:141
Synthonix
info at synthonix.com 
p.phone
f.fax
605
2007
201 download
398
44
NYA
90%:168
80%:101
70%:68
60%:36
TimTec
info at timtec.net 
p.(302) 292-8500
f.(302) 292-8520
93000
2005.11
262231 download
19202
17665
NYA
90%:87511
80%:37258
70%:15421
60%:5629
Toslab
toslab at toslab.com 
p.+7 343 3754135
f.+7 343 3754135
15941
2005.6
18211 download
443
10178
NYA
90%:6740
80%:3823
70%:2339
60%:1414
Tyger
sales at tygersci.com 
p.(888) 329-8990
f.(609) 434-0143
2670
2005.10
3167 download
150
1401
NYA
90%:1620
80%:987
70%:605
60%:355
Vitas-M
boerrigter at vitasmlab.com 
p.+31 (0) 55 50 500 33
f.+31 (0) 55 50 500 34
243000
2005.6
159513 download
0
16361
NYA
90%:51954
80%:18619
70%:7040
60%:2602
Adesis
info at adesisinc.com 
p.+1 302 323 4880
f.+1 302 323 4879
300
2007-02-10
267 download
34
131
NYA
90%:216
80%:119
70%:59
60%:16
The following limits are in effect:
  • Molecules per mol2 or SDF format file: 100,000
  • Entries per flexibase file 20,000
  • Typical size of mol2/sdf/flexibase files: 20 to 100 MB
  • Number of large files that may be downloaded concurrently: 2
In the downloads above, we offer four formats: SMILES, mol2, SDF, and flexibase formats. Most docking programs we know of use mol2. We urge you to not download Flexibaseunless you are using DOCK3.5.54.

We have generated protonated forms in 3 pH ranges. The reference structure ("ref") is a single representative structure at pH 7. The middle pH range ("mid") contains additional protonated forms obtained by titrating protons with pKa between 5.75 and 8.25. The low pH range ("lo") contains additional protonated forms between pH 4.5-7 and the high pH range ("hi") contains additional protonation forms between pH 7-9.5.

Databases are divided into chunks for easier download. mol2 and sdf slices are 100MB or less uncompressed. Flexibase are 160MB or less uncompressed.

To download all files in the usual pH range (5.75-8.25) use "Usual". To download databases for metalloenzymes use "Metal", which adds the pH range 7-9.5 to usual above. For the entire pH range 4.5-9.5 please use "All".

We also offer tables of Molecular Properties, purchasing information, and Inchi files.

Last updated: Sept 5, 2006 by jji at cgl.ucsf.edu.