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

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1-Hydroxy-3-nitro-4-(3-hydroxypropylamino)benzene and its salts (e.g. 4-Hydroxypropylamino-3-nitrophenol) (with the exception that the maximum use concentration applied to hair must not exceed 2.6%)

Korean: 1-하이드록시-3-나이트로-4-(3-하이드록시프로필아미노)벤젠 및 그 염류 (예: 4-하이드록시프로필아미노-3-나이트로페놀)(다만, 염모제에서 용법·용량에 따른 혼합물의 염모성분으로서 2.6 % 이하는 제외) · CAS 92952-81-3 ·

KR South Korea (MFDS)

Prohibited only in certain forms or uses MFDS prohibited ingredients

Conditions (official MFDS text, Korean):
다만, 염모제에서 용법·용량에 따른 혼합물의 염모성분으로서 2.6 % 이하는 제외

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.

Also listed as

1-Hydroxy-3-nitro-4-(3-hydroxypropylamino)benzene and its salts (e.g. 4-Hydroxypropylamino-3-nitrophenol) (with the exception that the maximum use concentration applied to hair must not exceed 2.6%) 1-하이드록시-3-나이트로-4-(3-하이드록시프로필아미노)벤젠 및 그 염류 (예: 4-하이드록시프로필아미노-3-나이트로페놀)(다만, 염모제에서 용법·용량에 따른 혼합물의 염모성분으로서 2.6 % 이하는 제외)

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 1-Hydroxy-3-nitro-4-(3-hydroxypropylamino)benzene and its salts (e.g. 4-Hydroxypropylamino-3-nitrophenol) (with the exception that the maximum use concentration applied to hair must not exceed 2.6%) 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.

In Korea's MFDS records it is listed as “Prohibited only in certain forms or uses” (MFDS — cosmetic ingredient use restrictions). It is not a general ban; see the condition on the ingredient page.

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

What is 1-Hydroxy-3-nitro-4-(3-hydroxypropylamino)benzene and its salts (e.g. 4-Hydroxypropylamino-3-nitrophenol) (with the exception that the maximum use concentration applied to hair must not exceed 2.6%) called on Korean labels?

Korea's MFDS standard Korean name is 1-하이드록시-3-나이트로-4-(3-하이드록시프로필아미노)벤젠 및 그 염류 (예: 4-하이드록시프로필아미노-3-나이트로페놀)(다만, 염모제에서 용법·용량에 따른 혼합물의 염모성분으로서 2.6 % 이하는 제외).

What is the CAS number of 1-Hydroxy-3-nitro-4-(3-hydroxypropylamino)benzene and its salts (e.g. 4-Hydroxypropylamino-3-nitrophenol) (with the exception that the maximum use concentration applied to hair must not exceed 2.6%)?

CAS 92952-81-3 (from official records).