How it works
You ask about a chemical. We answer from the regulation.
Type a chemical, a question, or both. The engine understands what you need and takes you there.
You ask
What the engine checks · primary sources only
- Regulatory listsEPA · ECHA · OEHHA · ECCCverified
- Exposure limitsOSHA · NIOSH · EUverified
- PPENIOSHverified
- StorageEPA CAMEOverified
- ClassificationUNECE GHS · OSHAverified
You get the answer, cited
Benzene71-43-2 · C6H6 · MW 78.114
- TSCA · entry found
- Prop 65 · entry found
- SVHC · checked, no entry
- OSHA PEL · entry found
source: TSCA Chemical Substance Inventory, non-confidential portion, Last created: 07/2026 · California Proposition 65 list, list dated 2026-07-31 (stated in the file header) · REACH SVHC Candidate List, export file dated 2026-02-27 · OSHA permissible exposure limits (Tables Z-1, Z-2, Z-3), CFR 2024 annual edition (CFR-2024-title29-vol6, govinfo); section last amended 82 FR 2735, Jan 9 2017
Sulfuric acid7664-93-9 · H2O4S · MW 98.07
- Gloves · entry found
- OSHA PEL · entry found
- NIOSH REL · entry found
source: NIOSH Chemical Protective Clothing (CPC) database, June 1997 edition · OSHA permissible exposure limits (Tables Z-1, Z-2, Z-3), CFR 2024 annual edition (CFR-2024-title29-vol6, govinfo); section last amended 82 FR 2735, Jan 9 2017 · NIOSH recommended exposure limits (Pocket Guide dataset), 2023 supplementary dataset (figshare 24431042); September 2007 printing of the Pocket Guide as the verification backstop
Fluorotelomer alcohol 6:2647-42-7 · C8H5F13O · MW 364.106
- PFAS 8(a)(7) · entry found
- TSCA · entry found
source: EPA TSCA §8(a)(7) PFAS reference list, exported 2026-08-01 · TSCA Chemical Substance Inventory, non-confidential portion, Last created: 07/2026
Acetone67-64-1 · C3H6O · MW 58.08 · with nitric acid, 7697-37-2
- Reactivity · entry found
source: CAMEO Chemicals reactivity data, CAMEO Chemicals 3.1.0 (Windows desktop, May 2024)
Xylenes1330-20-7 · C8H10 · MW 106.168 · 38% component
- OSHA PEL · entry found
- NIOSH REL · entry found
- TSCA · entry found
source: OSHA permissible exposure limits (Tables Z-1, Z-2, Z-3), CFR 2024 annual edition (CFR-2024-title29-vol6, govinfo); section last amended 82 FR 2735, Jan 9 2017 · NIOSH recommended exposure limits (Pocket Guide dataset), 2023 supplementary dataset (figshare 24431042); September 2007 printing of the Pocket Guide as the verification backstop · TSCA Chemical Substance Inventory, non-confidential portion, Last created: 07/2026
Scenario 1 of 5: benzene.
Every value on those cards comes from a verified primary source, and every citation names the source and the edition it was read from. Where a source does not cover a substance, the card says so and points you at it, rather than reporting a clean result nobody issued.
Every answer traced to the regulation itself. 28 tools, one method.