Key Summary: DOHSBase Online gives you CAS-number-first access to 325,000+ substances with more than 15,000 occupational exposure limits, 5,300+ REACH DNELs, 100,000+ kick-off values, and 5,500+ internationally accepted measurement methods — all hierarchically ranked so you see the most relevant value first. Search by CAS number, EC number, or any part of the substance name or synonym, and you get a consistent set of tabs on every result: Identity, Physical-chemical properties, Hazard classification (H- and EUH-phrases, GHS pictograms), Limit values and documents, and Measurement methods. The offline DOHSBase Compare tool adds a side-by-side Risk Assessment Score comparison for substances you’re weighing against each other. Everything is validated by registered occupational hygienists before it enters the database, and the data is refreshed twice per year — so you’re never defending an exposure decision with a number that’s a release cycle behind the regulator.
With DOHSBase you get:
- The most suitable limit values and measurement methods, both presented according to a hierarchy
- The physical-chemical properties of a substance
- The hazard classification of a substance (classification, H-phrases and symbols)
- Additional data such as the SZW list of CMR substances and IARC evaluations of carcinogenic substances
- In the offline version “DOHSBase Compare” you can compare different substances by health risk in the workplace
Search
With “Search” you can quickly find the relevant substance by entering the CAS number, EC number, or (part of) the name or synonym. The following buttons are then visible:
- Identity - Name, synonyms, CAS number, EC number, molecular formula and structural formula
- Physical-chemical properties - Molecular mass, physical state, melting point, boiling point, vapor pressure, saturation concentration, specific gravity, water solubility, Log Octanol-Water, Henry’s Law constant, lower explosive limit (LEL), flash point
- Hazard classification - Classification, H- and EUH-phrases, symbols and specific concentration limits or M-factors
- Limit values & documents - Presented according to a fixed hierarchy
- Measurement methods - Internationally accepted measurement methods