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

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Bis[4-(phenylazo)benzene-1,3-diamine] sulfate

Korean: 비스[4-페닐아조)벤젠-1,3-다이아민]설페이트 · CAS 75660-25-2 ·

KR South Korea (MFDS)

Prohibited MFDS prohibited ingredients

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

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 Bis[4-(phenylazo)benzene-1,3-diamine] sulfate is treated in 2 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	Prohibited	—
AS ASEAN (10 countries)	Prohibited only in certain forms or uses	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

Also listed as

Bis[4-(phenylazo)benzene-1,3-diamine] sulfate 비스[4-페닐아조)벤젠-1,3-다이아민]설페이트

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 Bis[4-(phenylazo)benzene-1,3-diamine] sulfate 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 Bis[4-(phenylazo)benzene-1,3-diamine] sulfate banned in South Korea?

In Korea's MFDS records it is listed as “Prohibited” (MFDS — cosmetic ingredient use restrictions).

Is Bis[4-(phenylazo)benzene-1,3-diamine] sulfate 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 Bis[4-(phenylazo)benzene-1,3-diamine] sulfate called on Korean labels?

Korea's MFDS standard Korean name is 비스[4-페닐아조)벤젠-1,3-다이아민]설페이트.

What is the CAS number of Bis[4-(phenylazo)benzene-1,3-diamine] sulfate?

CAS 75660-25-2 (from official records).