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KBeauty Verified™ — K-beauty checked against official records from Korea, the EU and the U.S.

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Hydrogen 3,6-bis(diethylamino)-9-(2,4-disulphonatophenyl)xanthylium, sodium salt

Korean: 하이드로젠3,6-비스(다이에틸아미노)-9-(2,4-다이설포나토페닐)잔틸륨, 소듐염 · CAS 3520-42-1 ·

KR South Korea (MFDS)

No specific rule on file.

EU European Union (CosIng)

No specific rule on file.

US United States (FDA)

No specific rule on file. The FDA regulates few cosmetic ingredients by name; no rule does not mean approval.

Other markets

How Hydrogen 3,6-bis(diethylamino)-9-(2,4-disulphonatophenyl)xanthylium, sodium salt is treated in 1 more market, 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
AS ASEAN (10 countries)	Restricted	MFDS summary (Korean): (15) The free base and salts of this hair colouring ingredient, unless prohibited under Annex II, are permitted for use. * 단서조항(주석) : (15) The free base and salts of this hair colouring ingredient, unless prohibited under Annex II, are permitted for use. Annex II의 금지된 염모제의 염이나 자유 염기가 아니라면,...

Source: MFDS cosmetic ingredient use restrictions — overseas regulations · checked Oct 17, 2026

Also listed as

Hydrogen 3,6-bis(diethylamino)-9-(2,4-disulphonatophenyl)xanthylium, sodium salt 하이드로젠3,6-비스(다이에틸아미노)-9-(2,4-다이설포나토페닐)잔틸륨, 소듐염

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.

Frequently asked questions

Is Hydrogen 3,6-bis(diethylamino)-9-(2,4-disulphonatophenyl)xanthylium, sodium salt banned in the European Union?

We found no specific rule for it in the EU's CosIng records. That is not an approval or a safety statement.

Is Hydrogen 3,6-bis(diethylamino)-9-(2,4-disulphonatophenyl)xanthylium, sodium salt banned in South Korea?

We found no specific rule for it in Korea's MFDS records. That is not an approval or a safety statement.

Is Hydrogen 3,6-bis(diethylamino)-9-(2,4-disulphonatophenyl)xanthylium, sodium salt allowed in cosmetics in the U.S.?

We found no specific rule for it in the FDA's records. That is not an approval or a safety statement.

What is Hydrogen 3,6-bis(diethylamino)-9-(2,4-disulphonatophenyl)xanthylium, sodium salt called on Korean labels?

Korea's MFDS standard Korean name is 하이드로젠3,6-비스(다이에틸아미노)-9-(2,4-다이설포나토페닐)잔틸륨, 소듐염.

What is the CAS number of Hydrogen 3,6-bis(diethylamino)-9-(2,4-disulphonatophenyl)xanthylium, sodium salt?

CAS 3520-42-1 (from official records).