Good Cosmetic Ingredient

1-Hexyl 4,5-Diamino Pyrazole Sulfate

INCI: 1-HEXYL 4,5-DIAMINO PYRAZOLE SULFATE

CAS Number
1361000-03-4
Function
Hair dyeing — oxidative hair colouring agent (precursor)
Safety Rating
GOOD

Regulatory Status

🇪🇺 EU Status restricted
🇺🇸 US Status permitted
US Notes Not specifically listed by FDA; hair dye ingredients have special regulatory status (coal-tar hair dye exemption provisions apply)

For full compliance data across 55 jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety (MoS)
adequate
Dermal Absorption
low
Sensitization
moderate

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Restricted to oxidative hair dye formulations only; must comply with Annex III concentration limits; diamino compound — patch testing recommended before use

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Concern Level: Moderate

Regulatory Flags

eu_cosing_listed

Frequently Asked Questions

Is 1-Hexyl 4,5-Diamino Pyrazole Sulfate safe in cosmetics?

Restricted to oxidative hair dye formulations only; must comply with Annex III concentration limits; diamino compound — patch testing recommended before use The EU classifies 1-Hexyl 4,5-Diamino Pyrazole Sulfate as "restricted". Safety rating: GOOD.

Is 1-Hexyl 4,5-Diamino Pyrazole Sulfate allowed in the EU?

1-Hexyl 4,5-Diamino Pyrazole Sulfate EU regulatory status: restricted. This is based on EU Regulation 1223/2009 and its amendments.

What does 1-Hexyl 4,5-Diamino Pyrazole Sulfate do in cosmetics?

1-Hexyl 4,5-Diamino Pyrazole Sulfate functions as: Hair dyeing — oxidative hair colouring agent (precursor). It is classified as a cosmetic ingredient in our database. CAS number: 1361000-03-4.

What is the Margin of Safety for 1-Hexyl 4,5-Diamino Pyrazole Sulfate?

adequate The Margin of Safety (MoS) is calculated using SCCS methodology. A MoS above 100 is generally considered safe. Use the MoS Calculator tool to calculate MoS for your specific formulation and product category.

Compliance Tools

Check 1-Hexyl 4,5-Diamino Pyrazole Sulfate compliance across multiple jurisdictions:

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Ingredient Decoder
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82 Allergen Checker
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Substance Compliance
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MoS Calculator
Calculate Margin of Safety using SCCS methodology
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Heavy Metal Limits
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