| Data Source | External ID(s) |
| 3B Scientific | HE004298, HE343443, HE349411 |
| A&J Pharmtech | AJ-143532 |
| ACD Labs | N/A |
| AChemo | AC-15607 |
| Advanced Technology & Industrial | 3555398 |
| AKos | AKOS003367969 |
| Alinda Chemical | IBS-L0034141 |
| American Custom Chemicals Corp | API0002307, RDL0007308, RDL0015656 |
| ApexBio | A3365 |
| Ark Pharm, Inc. | AK116444 |
| Arking Pharma | Arka-0051 |
| BePharm | B124118 |
| Biochempartner | BCP0725000172, BCP9000050 |
| Cambridge Structural Database | CCDC reference 964494, DIZPAM10 |
| ChEBI | CHEBI:49575 |
| ChemAdvisor | OHS06537, OHS06537, OHS38140 |
| ChemBank | DivK1c_000967, KBio1_000967, KBio3_002780, KBioGR_001012, NINDS_000967, Spectrum3_001780, Spectrum4_000576 |
| ChEMBL | CHEMBL12 |
| ChemBlock | A3662/0155188 |
| ChemBridge | 8888319 |
| ChemDB | 3966308 |
| ChemDiv | 8016-5188 |
| ChemIDplus | 000439145 |
| ChemPacific | 12234 |
| ChemScene | CS-0653 |
| ChemSynthesis | 11118 |
| Christopher Data | N/A |
| Collaborative Drug Discovery | 194 |
| Comparative Toxicogenomics Database | D003975 |
| CSDeposition Service | N/A |
| DailyMed | Diazepam |
| DiscoveryGate | 3016 |
| DrugBank | DB00829 |
| DSigDB | d1_93, d4boss_1405, d4ctd_5789 |
| DTP/NCI | 169897, 77518 |
| eMolecules | 536762 |
| EPA DSSTox | 1203_NTPBSI_v2b, 250_Tox21S_v2a, 374_FDAMDD_v3b, 422_CPDBAS_v5b, DTXCID20406 |
| FDA | 13263 |
| FDA Structured Product Labeling index data | 3f05610a-a747-4290-8db2-59a956632d78.xml |
| FDA UNII - NLM | Q3JTX2Q7TU, UNII: Q3JTX2Q7TU |
| Finetech Industry | FT-0632135, FT-439-14-5 |
| Glentham Life Sciences | GP8751 |
| Guide to PHARMACOLOGY | 3364 |
| Hangzhou APIChem Technology | AC-10561 |
| Hello Bio | HB0909 |
| Human Metabolome Database | HMDB14967 |
| Infotherm | 24878 |
| Istituto Superiore di Sanità | 841 |
| Jalor-Chem | I06-0194 |
| Jean-Claude Bradley Open Melting Point Dataset | 15537, 16541, 17287, 22008, 28015, 28016, 28017 |
| Journal of Heterocyclic Chemistry | 19680731_IV, 19701173_IIIA, 19751175_2, 19781083_1, 19790445_1A, 19800373_3, 19930939_3, 19930945_10, 19800373_3.TS, 19801483_I |
| KEGG | C06948, D00293 |
| LabNetwork | LN01271418 |
| LeadScope | LS-122 |
| Letopharm | LT02-02284 |
| LGC Standards | LGCAMP0023.00-01, LGCAMP0023.00-02, LGCFOR0023.00, MM0023.00 |
| Lhasa Limited | 439-14-5 |
| MassBank | EA262601_eu, EA262601_jp, EA262602_eu, EA262602_jp, EA262603_eu, EA262603_jp, EA262604_jp, EA262605_jp, EA262606_jp, EA262607_jp, ... |
| Mcule | MCULE-8990989144 |
| MedChem Express | HY-17027 |
| MeSH | C011920, D003975 |
| Microsource | 01900003 |
| MLSMR | MLS000759402, MLS001424086 |
| MMDB | 35374.3 |
| Nature Chemical Biology | nchembio747-comp27 |
| Nature Publishing Group | nchembio.917-comp1 |
| NIAID | 001617 |
| NIH Clinical Collection | SMR000058398 |
| NINDS Approved Drug Screening Program | 01900003 |
| NIST | 2465248872 |
| NIST Chemistry WebBook | 2465248872 |
| NIST Spectra | Mainlib-113837, mainlib_113837, nist ri, Replib-250599, Replib-42333, Replib-312579, Replib-379588, replib_42333 |
| NMRShiftDB | 10016206 |
| ONSChallenge | N/A |
| Oxford University Chemical Safety Data (No longer updated) | More details, More details |
| PDB | DZP |
| PDSP, Pharmacology School of Medicine UNC Chapel Hill | 656, 656, 656, 656, 656, 656, 656 |
| Pillbox | N/A |
| Princeton Biomolecular | OSSL_297021 |
| PubChem | 3016 |
| PubMed | 10566958, 10594919, 10604601, 7550363, 6140420, 10611637, 6691497, 6606997, 6691589, 6691591, ... |
| QSAR | N/A |
| Rostar Global | RS-1981991 |
| Royal Society of Chemistry | b009986o, b103091b, B615669J, b701423f, b704076h, b715668p, c0an00189a, b922617f, b927181c, c0md00020e, ... |
| RSC Learn Chemistry Wiki | Diazepam |
| Sequoia Research Products | N/A |
| Shanghai IS Chemical Technology | I06-0194 |
| Sigma-Aldrich | 1185008, D0899, D0899_SIGMA, D0940000, D907, D9900, D9900_SIGMA, Y0000596 |
| Single Depositions | 439-14-5, diazepam, valium, diazepan |
| Specs | AN-153/I262062 |
| The Merck Index Online | cs000000007017 |
| Thomson Pharma | 00001059, 00037810, 00038872, 02157999 |
| Tocris Bioscience | 2805 |
| Toxin, Toxin-Target Database | T3D2903 |
| Vitas-M | STK735517 |
| Wikipedia | Diazepam |
| xPharm | 8284 |
| Zerenex Molecular | ZX-AC028715, ZX-CF000793 |
| ZINC | ZINC00006427 |