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Chemical Safety Databases: 6 Compared for Scope and Reuse (2026)

Chemical safety databases answer two questions: what a substance does to people, and how it is classed for transport. Most answer the first; one here is built from the transport regulations.

All six are free to read. Free to reuse is a different matter, set by each publisher's terms page.

Updated October 20266 compared

The first three entries in this comparison: Vektor UN number database, BAM Dangerous Goods Database (DGG-Info) and ILO/WHO International Chemical Safety Cards
Entries 1 to 3: Vektor UN number database, BAM Dangerous Goods Database (DGG-Info) and ILO/WHO International Chemical Safety Cards.
Vektor ResearchEdited by Rene Siller
Last updated 8 October 2026
Contents

Key takeaways

Free to read is not a licence. All six can be searched at no charge; only BAM's datasets and our own data carry an open licence. (BAM, terms of use)

GESTIS forbids transfer. IFA does not permit commercial use or transfer to other information systems; linking to a data sheet is welcome. (IFA, GESTIS contents and use)

BAM is the transport source here. BAM's Dangerous Goods Database is built from the dangerous goods regulations and has been fee free since 23 July 2025. (BAM, Dangerous Goods Database)

A CAS match is a lead. PubChem says it is not authoritative for CAS numbers and holds them for under about 4% of all known ones. (PubChem, About)

Mixtures need their own check. A record for one substance does not classify a mixture or a consignment; take classification from the ADR text. (Vektor Group)

Where to look first

Pick the database by the question, not by its name. Transport questions start from a UN number and the regulation; workplace and toxicology questions start from a name or CAS number; reuse questions start from the terms page.

Your questionWhere to look
Class, packing group, hazard number and tunnel code for a common UN numberOur UN number database (entry 1)
Regulation data for any UN number, in German or EnglishBAM DGG-Info (entry 2)
First aid, spill and storage advice from a CAS numberICSC (entry 3) or GESTIS (entry 4)
CLP classification and labelling at workGESTIS (entry 4)
Which compound a name or CAS number means, and who said soPubChem (entry 5), reading each value's provenance
Emergency response information by UN/NA numberCAMEO Chemicals (entry 6)
Can I reuse the data in my own dataset?The reuse column below

Six databases by task, provenance and reuse

DatabasePrimary purposeIdentifiers supportedAuthority and provenanceFree to readLicensed for reuseTransport classification limit
Vektor UN number databaseRoute checks for 34 frequent substancesUN number onlyVektor Group; Dutch names matched to the official Dutch Table AYes, EN, DE, NLYes, CC BY 4.0Mostly common names, not proper shipping names
BAM Dangerous Goods Database (DGG-Info)Data from the dangerous goods regulationsUN number; records hold CAS and EC numbersBAM, German federal authorityYes, fee free since 23 Jul 2025, DE and ENYes, dl-de/by-2-0; no text and data mining without consentClosest to transport here; BAM excludes liability for accuracy
ILO/WHO International Chemical Safety CardsWorkplace safety cardsName, CAS, UN, ICSC numberExpert group for ILO and WHOYes, 19 language versions listedNo open licence on the card: all rights reservedClass and pack group for the card's substance only
GESTIS Substance DatabaseSafe handling at workZVG, CAS, EC, Index numbersIFA, German Social Accident InsuranceYes, DE and ENNo: no commercial use or transfer; linking welcomeTransport data not stated
PubChemOpen chemistry databaseNames, structures, CAS as depositor dataNIH, hundreds of contributing sourcesYesPer source; NCBI adds no restriction itselfNo transport claim
CAMEO ChemicalsEmergency response datasheetsName, CAS, UN/NA numberNOAA with the US EPAYes, for those handling chemicalsPartly: third party data needs written permissionADR not named

1.Vektor UN number database, for a route check on a common UN number

We built this table for the 34 substances we see most in road tanker and bulk chemical work. Each row gives class, packing group, hazard identification number and tunnel restriction code, the values needed before a route can be checked. Names are flagged by origin; most are common names.

Vektor's UN number database table with class, packing group, hazard number and tunnel code columns
Vektor UN number database, vektorgroup.eu
Use it forRoute values for 34 frequent UN numbers
IdentifiersUN number; no CAS column
Access and reuseFree in English, German and Dutch; JSON; CC BY 4.0
Limit34 rows; proper shipping names come from the ADR text

For anything else, use BAM (entry 2). Our ADR 2027 Table A comparison shows what changes for a UN number in 2027.

Source: vektorgroup.eu

2.BAM DGG-Info, for dangerous goods data straight from the regulations

BAM says its Datenbank GEFAHRGUT condenses the information from the dangerous goods regulations needed for safe transport. The DGG-Info search and the Excel and CSV data service have been fee free since 23 July 2025, in German and English; BAM still labels the search a beta. Substance records carry CAS and EC numbers, with ADR, RID, IMDG, ICAO and ADN data.

Start page of BAM's DGG-Info search for the Dangerous Goods Database
BAM Dangerous Goods Database (DGG-Info), dgg.bam.de
Use it forRegulation data for a UN number or a named substance
Free to readYes, search and downloads, no fee
Licensed for reusedl-de/by-2-0 with BAM's source line; mark changes; no BAM logos
LimitText and data mining reserved without written consent

BAM's December 2025 update corrected tank data on nine BAM numbers: record the version you used.

Source: dgg.bam.de

3.ILO/WHO International Chemical Safety Cards, for a workplace safety summary by CAS or UN number

Each card summarises fire, exposure, first aid, spillage and storage information for one substance, searchable by name, CAS, UN or ICSC number. The English list holds 1,699 cards. The benzene card, ICSC 0015 of November 2016, shows UN hazard class 3 and pack group II, prepared by experts on behalf of ILO and WHO.

ICSC search form with fields for chemical name, CAS number, UN number and ICSC number
ILO/WHO International Chemical Safety Cards, chemicalsafety.ilo.org
Use it forA one page safety summary for workers and trainers
Free to readYes; 19 language versions listed
Licensed for reuseCard reads © ILO and WHO 2021, all rights reserved
LimitDescribes one substance, not a mixture or consignment

ILO's CC BY 4.0 policy covers its works from 3 May 2023 and sends earlier reproduction requests to rights@ilo.org. As the card reserves all rights, link to it rather than copy it.

Source: chemicalsafety.ilo.org

4.GESTIS, for occupational hazard and CLP classification data

IFA maintains GESTIS for the safe handling of hazardous substances at work and says it covers about 8,800 substances, including GHS classification and labelling under CLP. IFA publishes a table mapping ZVG, CAS, EC and Index numbers for all entries, processed in July 2026.

GESTIS Substance Database home page with list and search options
GESTIS Substance Database, gestis-database.dguv.de
Use it forHealth effects, protection, first aid and CLP labelling
Free to readYes, German and English
Licensed for reuseNo: no commercial use, no transfer to other systems
LimitTransport data not stated

IFA allows limited citing with the source named and welcomes links to data sheets, but not reposted PDFs, and says breaches may get an IP address blocked.

Source: gestis-database.dguv.de

5.PubChem, for identifying a compound and tracing who supplied each value

PubChem calls itself an open chemistry database at the National Institutes of Health, fed by hundreds of sources from agencies to vendors and publishers. About 5 million compounds carry a CAS number, under about 4% of all known ones, and PubChem says it is not authoritative for them.

PubChem home page search box at the National Library of Medicine
PubChem, pubchem.ncbi.nlm.nih.gov
Use it forResolving a name or CAS number and seeing who supplied each value
Free to readYes; most data downloadable
Licensed for reusePer source; contributors may claim rights
LimitA compound record does not classify a mixture or shipment

A source may state its own licence in the provenance under each value. Record it before you reuse anything.

Source: pubchem.ncbi.nlm.nih.gov

6.CAMEO Chemicals, for emergency response datasheets by UN/NA number

NOAA built CAMEO Chemicals with the US EPA for emergency responders and planners. It searches by name, CAS or UN/NA number; its UN/NA datasheets take shipping information from the Hazardous Materials Table and response information from the Emergency Response Guidebook. ADR is not named.

CAMEO Chemicals home page, Database of Hazardous Materials
CAMEO Chemicals, cameochemicals.noaa.gov
Use it forResponse, reactivity and spill information
Free to readYes, for those handling chemicals
Licensed for reusePartly: CAS, NFPA and other third party data need written permission
LimitUN/NA system, not an ADR classification

Source: cameochemicals.noaa.gov

A chemical record is not a shipment classification

A card, a GESTIS sheet or a PubChem compound describes one substance. A consignment may be a solution, mixture or waste, and its UN number and packing group depend on what is actually loaded. Classifying it stays with the consignor, usually with a safety adviser, against the ADR text.

What reuse requires

DatabaseCondition you must follow
VektorCredit Vektor Group
BAMSource line, licence, dataset link, changes marked; no mining without consent
ICSCAsk rights@ilo.org before reproducing
GESTISLimited citing and links only
PubChemFollow each source's licence
CAMEOOwner's written permission for third party data

How to document a source

Record enough that a colleague can reopen the exact record: identifier, record address, version, date accessed and terms. Link records rather than copying them unless the terms grant reuse.

Corrections

Terms change, as BAM's did when it moved from paid licences to an open one in 2025. If a row here is out of date, report it to info@vektorgroup.eu and we will correct and date it.

Source record for a chemical safety lookup

One record per database you rely on.

FieldWhat to writeYour answer
QuestionWhat you needed to know
Identifier searchedName, CAS, EC or UN number as entered
Substance or mixtureWhich, with concentration if known
Record URLDirect link to the record
Record versionDate, card number or version shown
Date accessedThe day you looked it up
ProvenancePublisher or contributing source of the value
Reuse termsLicence or restriction, quoted
Linked or copiedAnd the permission relied on
Transport sourceADR edition and Table A entry, or adviser
Checked byName and date

Download the worksheet (PDF)

Common questions

Which chemical safety database is free to reuse?

BAM's datasets carry dl-de/by-2-0 and our UN number data CC BY 4.0. PubChem depends on each source; ICSC cards reserve all rights; GESTIS forbids transfer; CAMEO restricts third party data.

Can I find a UN number from a CAS number?

ICSC and CAMEO Chemicals search by CAS and show a UN or UN/NA number. The number you ship under depends on the actual product, so confirm it against the ADR text.

Can I copy GESTIS data into my own database?

No. IFA does not permit transfer to other information systems. You may cite limited data with the source and link its data sheets.

Does a safety card classify my shipment?

No. It describes one substance; a shipment may be a mixture. Classification stays with the consignor and the ADR text.

Summary

For route values, our table or BAM DGG-Info; for workplace hazards, ICSC or GESTIS; for compound identity, PubChem; for emergency response, CAMEO Chemicals. All six are free to read, few are free to reuse, and none classifies a shipment.

Sources

BAM, DGG-Info searchRead 8 October 2026
BAM, Datenbank GEFAHRGUTRead 8 October 2026
BAM, GefahrgutdatenserviceRead 8 October 2026
ILO/WHO, ICSC 0015 BenzeneRead 8 October 2026
ILO, Rights and permissionsRead 8 October 2026
GESTIS Substance DatabaseRead 8 October 2026
IFA, Linking to GESTISRead 8 October 2026
PubChem, AboutRead 8 October 2026
CAMEO Chemicals, AboutRead 8 October 2026

Downloads

More lists and references

About Vektor Research

Vektor Research is the reference side of Vektor Group, a road freight broker in Tallinn that arranges ADR and chemical transport. The research pages are free to read and to reuse under CC BY 4.0, and they carry no offer.

Rene Siller is responsible for the content; how the pages are built is set out in the methodology, and errors are corrected in the open. Editorial questions and error reports go to info@vektorgroup.eu.

No entry paid to be listed and no link carries an affiliate code.

Cite this list

Vektor Research. Chemical Safety Databases: 6 Compared for Scope and Reuse (2026). Vektor Group, 8 October 2026. https://vektorgroup.eu/resources/dangerous-goods/chemical-safety-databases