Korean: CI 27755 · CAS 2118-39-0 · Functions: colorant
No specific rule on file.
prohibited_conditional Annex II/1354
Conditions: Tetrasodium 6-amino-4-hydroxy-3-[[7-sulphonato-4-[(4-sulphonatophenyl)azo]-1-naphthyl]azo]naphthalene-2,7-disulphonate (Food Black 2; CI 27755) when used as a substance in hair dye products
Source: EU CosIng — Annex II · checked Oct 17, 2026
Approved colorant Annex IV/52
Source: EU CosIng — Annex IV · checked Oct 17, 2026
No specific rule on file. The FDA regulates few cosmetic ingredients by name; no rule does not mean approval.
How CI 27755 is treated in 5 more markets, from the overseas cosmetic regulation database compiled by Korea's MFDS. Always confirm with the regulator of that country before selling there.
| Market | Status | Conditions |
|---|---|---|
| CN China | Restricted | MFDS summary (Korean): * 기타 제한조건 및 요구사항 : 염색제품에 사용금지 * 착색제 【사용허가 범위】 : 각종 화장품 |
| AS ASEAN (10 countries) | Restricted | MFDS summary (Korean): when used as a substance in hair dye products^염모제로 사용되는 경우에 한함 |
| TW Taiwan | Restricted | MFDS summary (Korean): 1. 所列色素與非禁用成分形成之麗基（lakes）及鹽（salts）亦可使用。 2. 未列載於此表規定範圍之成分，於歐盟、美國及日本三國家地區，任何其中一個國家地區官方已公告（以生效日為準）其使用基準者，得參照其基準規定准予使用(但下表CI 11380 等十九項成分不適用)，惟於申請查驗登記時，應同時檢附該等地區之准許使用基準證明文件。 * 단서조항 : 1. 所列色素與非禁用成分形成之麗基（lakes）及鹽（salts）亦可使用。 2.... |
| BR Brazil | Restricted | MFDS summary (Korean): when used as a substance in hair dye products^염모제로 사용되는 경우에 한함 |
| AR Argentina | Restricted | MFDS summary (Korean): when used as a substance in hair dye products^염모제로 사용되는 경우에 한함 |
Source: MFDS cosmetic ingredient use restrictions — overseas regulations · checked Oct 17, 2026
CI 27755
Information only, not medical advice. Rules change — always check the linked official source. If you are pregnant, have a skin condition or allergies, ask a dermatologist or pharmacist.
In the EU's CosIng records it is listed as “Approved colorant” (EU CosIng — Annex IV). It is allowed for that use within the stated conditions.
We found no specific rule for it in Korea's MFDS records. That is not an approval or a safety statement.
We found no specific rule for it in the FDA's records. That is not an approval or a safety statement.
The EU's CosIng inventory lists its functions as: colorant.
Korea's MFDS standard Korean name is CI 27755.
CAS 2118-39-0 (from official records).