Regulatory data is for reference only. Always verify with the official regulator before making formulation decisions. Last refreshed: 7/12/2026.
Ingredients/1H-Indole-2,3-Dione
1H-Indole-2,3-DioneCAS 91-56-5
EU CosIng Annex III — restricted
Regulatory status
| Source | Status | Annex / Details | Limit / Conditions | Last updated |
|---|---|---|---|---|
| EU CosIng | restricted | Annex III | 1.6% | — |
What this means
1H-Indole-2,3-Dione has regulatory signals in EU CosIng. Review the source links above for the official conditions and latest updates.
Common questions
- Is 1H-Indole-2,3-Dione restricted in EU cosmetics?
- 1H-Indole-2,3-Dione is restricted in EU cosmetics under Annex III with a maximum concentration of 1.6%.
- What is the CAS number for 1H-Indole-2,3-Dione?
- The CAS number for 1H-Indole-2,3-Dione is 91-56-5.
Get the full 27-market profile
Sign up free to unlock GHS hazards, FDA, Canada, ASEAN, China, Japan, Korea, UK, and more.