4-Butylresorcinol
CAS 18979-61-8
EC 606-191-2
Formula C10H14O2
MW 166.22 g/mol
UV Absorbers & Stabilizers Personal Care & CosmeticsPharmaceuticals & Healthcare Antioxidant & StabilizerUV Protection & StabilizationPreservation & BiocideFlavoring & Acidulant
Description
4-Butylresorcinol (CAS 18979-61-8) is a phenolic compound commercially known under trade names including Rucinol, Iklen, and NKO 12. It carries no assigned E-code and is classified under HS code 2907290090. The compound is registered under REACH and recognised across personal care and pharmaceutical supply chains.
In skin-lightening formulations, 4-Butylresorcinol inhibits both tyrosinase and peroxidase enzymes, directly suppressing melanin synthesis at concentrations typically between 0.1% and 1%. It also functions as an antioxidant and antimicrobial agent in cosmetic matrices, protecting active ingredients from oxidative degradation while extending product shelf life.
The material is supplied as a powder and is available in cosmetic and pharmaceutical grades compliant with REACH registration requirements. Procurement teams should confirm supplier documentation covering purity specifications, safety data sheets, and certificate of analysis. Standard packaging formats vary by supplier volume tier.
In skin-lightening formulations, 4-Butylresorcinol inhibits both tyrosinase and peroxidase enzymes, directly suppressing melanin synthesis at concentrations typically between 0.1% and 1%. It also functions as an antioxidant and antimicrobial agent in cosmetic matrices, protecting active ingredients from oxidative degradation while extending product shelf life.
The material is supplied as a powder and is available in cosmetic and pharmaceutical grades compliant with REACH registration requirements. Procurement teams should confirm supplier documentation covering purity specifications, safety data sheets, and certificate of analysis. Standard packaging formats vary by supplier volume tier.
Physical Properties
| Melting Point | 49-50 °C |
| Boiling Point | 155-175 °C @ Press: 7 Torr |
| Density | 1.092±0.06 g/cm3(Predicted) |
| Color | white to pale yellow powder |
| Odor | Characteristic |
| Form | Powder |
| Vapor Pressure | 0.041Pa at 25℃ |
| Log P | 2.8 at 24℃ and pH7 |
Safety & Handling (Learn More)
Warning GHS07 GHS09
H
H302H315H319H400
P
P264P270P273P280P321P330P391P501P264+P265P301+P317P302+P352P332+P317P337+P317P362+P364P305+P351+P338
Trade & Regulatory
| HS Code | 2907290090 |
| Storage Class | 13 - Non Combustible Solids |
| WGK (Germany) | 2 |
Other Names
4-butylbenzene-1,3-diolRucinol (Tn)IklenNKO 12RucinolButylresorcinol4-N-BUTYLRESORCINOLResorcinol, 4-butyl-
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