Free tool

SVHC Candidate List Checker

Check CAS or EC numbers against the ECHA SVHC Candidate List. Validates identifier format and flags Substances of Very High Concern.

Group entries without a single CAS number

Substance	EC	Included	Reason
Tetra(sodium/potassium) 7-[(E)-{2-acetamido-4-[(E)-(4-{[4-chloro-6-({2-[(4-fluoro-6-{[4-(vinylsulfonyl)phenyl]amino}-1,3,5-triazine-2-yl)amino]propyl}amino)-1,3,5-triazine-2-yl]amino}-5-sulfonato-1-naphthyl)diazenyl]-5-methoxyphenyl}diazenyl]-1,3,6-naphthalenetrisulfonate; Reactive Brown 51	466-490-7	2025-06-25	Toxic for reproduction (Article 57c)
4,4'-[2,2,2-trifluoro-1-(trifluoromethyl)ethylidene]diphenol and its salts	—	2026-02-04	Toxic for reproduction (Article 57c)
disodium 4,4'-[2,2,2-trifluoro-1-(trifluoromethyl)ethylidene]diphenolate	425-060-9	2026-02-04	Toxic for reproduction (Article 57c)
N,N-dibutyl-N-methylbutan-1-aminium 4-[1,1,1,3,3,3-hexafluoro-2-(4-hydroxyphenyl)propan-2-yl]phenolate	443-330-4	2026-02-04	Toxic for reproduction (Article 57c)

These Candidate List entries do not have a single CAS number. Where ECHA publishes an EC number, it is supported above.

What this tool checks

Checks

✓ CAS number format and CAS check digit
✓ EC number format and EC check digit
✓ Lookup against the ECHA SVHC Candidate List
✓ Substance name, EC number, date of inclusion, reason

Does not check

✗ CAS or EC registry existence outside the Candidate List lookup
✗ Concentration thresholds (Art. 33: 0.1% w/w)
✗ Authorisation List (Annex XIV) or Restriction List (Annex XVII)
✗ Substance removals or superseded entries

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Related guides

Glossary

What is the SVHC Candidate List? REACH Compliance for Product Data

A complete explanation of the SVHC Candidate List under EU REACH: what it is, what triggers inclusion, the Article 33 duty to communicate, update cycles, and implications for electrical product data.

Comparison

SVHC vs SCIP vs REACH Annex XVII: Understanding EU Chemical Regulations

Compare the three key EU chemical regulatory frameworks that affect electrical product data: the SVHC Candidate List, the SCIP database, and REACH Annex XVII restrictions.