Multi-List Regulatory Screener
Free tool
Paste up to 25 substances — chemical names and/or CAS numbers — review how they were read, then screen them against four regulatory lists, each checked against a dated copy of that list.
Names and CAS numbers can be mixed. Numbered and bulleted lists are accepted. Each substance becomes a chip you can check, edit, merge or remove before anything is screened.
These results are list-membership facts as of the dated copy of each list identified on the result. Absence from these lists is not evidence of safety or of regulatory non-applicability. Safety Data Sheets and the primary source lists remain authoritative.
California Prop 65 data: OEHHA, The Proposition 65 List.
SVHC data reproduced from the ECHA Candidate List, with acknowledgment of the European Chemicals Agency (ECHA).
PFAS reference data: U.S. EPA CompTox Chemicals Dashboard (public domain).
CEPA Schedule 1 reproduced under the Reproduction of Federal Law Order (Environment and Climate Change Canada).
Data as of: Prop 65 2026-07-31 · SVHC 2026-02-27 · PFAS §8(a)(7) 2026-08-01 · CEPA Sch. 1 2026-08-01
Reference only. Not legal or regulatory advice. Verify against the primary source before you act.
How it works
This tool is the batch counterpart of the Material Risk Snapshot: paste up to 25 substances and every one is screened against dated copies of the same four public regulatory lists — the California Proposition 65 list (OEHHA), the REACH SVHC Candidate List (ECHA), EPA's TSCA §8(a)(7) PFAS reference list (CompTox PFAS8a7v3), and Canada's CEPA Schedule 1 (ECCC) — using the Snapshot's matching engine unchanged.
Nothing is screened until you confirm. What you paste is first broken into chips, one per substance, each showing how it was recognized. You review that reading — edit any chip, merge two that should be one, delete what you did not mean — and only then does screening run. This matters because chemical names contain the same punctuation used to separate them.
Lines and tabs always separate substances, so a column pasted from a spreadsheet works directly, and numbered or bulleted lists are accepted. Commas are treated carefully: a list of CAS numbers splits cleanly, but where a name is involved the tool splits only at a comma followed by a space and flags every resulting chip for you to check — because most comma-bearing chemical names, such as 1-Amino-2,4-dibromoanthraquinone, carry no space after the comma and must never be broken apart.
Matching is exact, never fuzzy. A CAS matches only an identical CAS token — list rows carrying several CAS numbers match on any of theirs. A name resolves only on an exact, case-insensitive match against a known list entry; anything else stays in the table as an unresolved row rather than being guessed or dropped.
The per-list caveats carry over unchanged. Prop 65 chemicals that OEHHA has delisted are reported as formerly listed — never as listed. EPA's §8(a)(7) list is an explicitly non-exhaustive reference subset of a structural PFAS definition, so absence from it never means "not a PFAS" or "not reportable." CEPA Schedule 1 identifies substances by name only, so a CEPA name hit is a name-level match that requires review. A CAS is screened against ECCC's published CAS mapping, which is explicitly non-exhaustive — a hit is reported as an association, and a miss never means "not on Schedule 1," since ECCC lists no CAS even for Benzene or Lead.
Each expanded row states exactly which dated copy of the underlying list was used and links to the official source. Lists change — the primary source is always authoritative.
Worked example
Pasting three lines — 335-67-1, Allyl chloride, and Coal tars and their distillates — produces three chips. The CAS chip previews as Pentadecafluorooctanoic acid (PFOA) · 335-67-1 so you can confirm the number before screening. Confirm, and it reports listed on Prop 65, the SVHC Candidate List and the PFAS reference list, and "no CAS association" for CEPA Schedule 1 — ECCC's mapping carries no CAS for it, which is not the same as absence.
Allyl chloride reports formerly listed on Prop 65 — OEHHA delisted it on October 29, 1999 — never "listed." It counts toward the summary strip's screened total but not its flagged total.
Now paste the single line Alcoholic beverages, when associated with alcohol abuse . It splits into two amber chips, because a comma followed by a space usually separates two substances — and Alcoholic beverages really is a separate Prop 65 listing, so screening the split silently would have answered a different question. Press Merge and the original entry is restored as one chip, which resolves to the 1988 listing. That repair step is the whole point of the review.
Related tools
Data vintage
- Data: California Proposition 65 list, California Office of Environmental Health Hazard Assessment (OEHHA) list dated 2026-07-31 (stated in the file header), retrieved 2026-08-01, 990 rows.990 rows = 965 active and 25 delisted. OEHHA ships delisted chemicals inline in the same sheet; 111 entries carry no CAS number and match by name only.
- Data: REACH SVHC Candidate List, European Chemicals Agency (ECHA) export file dated 2026-02-27, retrieved 2026-08-01, 263 rows.263 rows = 253 unique entries; a substance listed on several dates for several Article 57 reasons occupies more than one row. 41 rows carry no CAS and match by name only. The list updates twice yearly, so a mid-2026 update may postdate this snapshot.
- Data: EPA TSCA §8(a)(7) PFAS reference list, U.S. Environmental Protection Agency exported 2026-08-01, retrieved 2026-08-01, 13,054 rows.EPA's required framing for this list, verbatim: "This list is EPA's explicitly non-exhaustive reference subset of a broader structural definition of PFAS, and it excludes polymers and UVCBs that may still be reportable. Absence from this list does not mean the substance is not a PFAS or is not reportable." 2,513 rows carry no CAS.
- Data: CEPA Schedule 1 Toxic Substances List, Environment and Climate Change Canada (ECCC) page as captured 2026-08-01, retrieved 2026-08-01, 156 entries.Post-2023 (Bill S-5) structure: Part 1 = 19 entries, Part 2 = 137. No entry carries a CAS number, so matching against this list is name-level only. The CAS association layer is a separate ECCC Substances Search export retrieved 2026-08-02 and is explicitly non-exhaustive.
last updated 2026-08-02