EC number
EC 231-165-9 Gold
CAS 7440-57-5 · CAS 1360157-34-1 · EC 231-165-9
Where EC 231-165-9 appears: every table entry that prints it among its identifiers, in the newest version of each act this record holds, and every recorded change to those entries. Many entries name a group of substances and print no number, so absence here is not absence from the law. Not legal advice.
Where it appears now
Cosmetics Regulation Annex II, Reference number 1728
Last changed in the version in force , by Regulation (EU) 2024/858, the act that change names · Annex II on this site
| Reference number | Substance identification | ||
|---|---|---|---|
| Chemical name/INN | CAS number | EC number | |
| a | b | c | d |
| 1728 | Gold (nano) [INCI] , Colloidal Gold (nano) [INCI] [1] Gold Thioethylamino Hyaluronic Acid (nano) [INCI] [2] Acetyl heptapeptide-9 Colloidal gold (nano) [INCI] [3] | 7440-57-5 [1] 1360157-34-1 [2] [3] | 231-165-9 [1] [2] [3] |
Cosmetics Regulation Annex IV, Reference number 133
No change to this entry since the first version the record holds, in force 11 July 2013. · Annex IV on this site
| Reference number | Substance identification | Conditions | Wording of conditions of use and warnings | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Chemical Name | Colour index Number/Name of Common Ingredients Glossary | CAS number | EC number | Colour | Product type, Body parts | Maximum concentration in ready for use preparation | Other | ||
| a | b | c | d | e | f | g | h | i | j |
| 133 | Gold | 77480 | 231-165-9 | Brown | Purity criteria as set out in Commission Directive 95/45/EC (E 175) | ||||
Look up a number
Type a CAS or EC number, with or without its hyphens, or an Index No into the search box at the top of the page: it reads 50000 as CAS 50-00-0. Every number is also listed by act on the substances page.
Its history
· added · Cosmetics Regulation Annex II, Reference number 1728
Recorded in the version in force , by Regulation (EU) 2024/858, the act that change names. The change on its version page
| Identifiers | Reference number | Substance identification | ||
|---|---|---|---|---|
| Chemical name/INN | CAS number | EC number | ||
| a | b | c | d | |
| Reference number 1728CAS 1360157-34-1CAS 7440-57-5EC 231-165-9 | 1728 | Gold (nano) [INCI] , Colloidal Gold (nano) [INCI] [1] Gold Thioethylamino Hyaluronic Acid (nano) [INCI] [2] Acetyl heptapeptide-9 Colloidal gold (nano) [INCI] [3] | 7440-57-5 [1] 1360157-34-1 [2] [3] | 231-165-9 [1] [2] [3] |
Sources
- Cosmetics Regulation: every version the record holds; rows read from EUR-Lex consolidated version 02009R1223-20260518, in force 18 May 2026 (external, EUR-Lex)