Butyl salicylate
CAS 2052-14-4
EC 218-142-9
Formula C11H14O3
MW 194.23 g/mol
Organic Acids Personal Care & CosmeticsPharmaceuticals & Healthcare Flavoring & AcidulantSolvent & CarrierUV Protection & Stabilization
Description
Butyl salicylate (CAS 2052-14-4, EC 218-142-9), also known by the trade names Brunol and NSC 1511, is an ester formed from salicylic acid and n-butanol. It carries no assigned E-code and is classified under HS code 29182300. The molecular formula is C11H14O3.
In personal care formulations, butyl salicylate functions as a UV-absorbing agent by capturing UVB radiation through its salicylate chromophore, helping to stabilize light-sensitive ingredients. It also serves as a carrier solvent in fragrance and flavoring systems, improving the dispersion and fixation of aromatic compounds across the formulation matrix.
Butyl salicylate is supplied as a liquid and is available in cosmetic and pharmaceutical grades compliant with REACH regulations. Procurement teams should confirm supplier documentation against relevant pharmacopoeial standards where pharmaceutical application is intended. Standard packaging formats include drums and intermediate bulk containers for industrial quantities.
In personal care formulations, butyl salicylate functions as a UV-absorbing agent by capturing UVB radiation through its salicylate chromophore, helping to stabilize light-sensitive ingredients. It also serves as a carrier solvent in fragrance and flavoring systems, improving the dispersion and fixation of aromatic compounds across the formulation matrix.
Butyl salicylate is supplied as a liquid and is available in cosmetic and pharmaceutical grades compliant with REACH regulations. Procurement teams should confirm supplier documentation against relevant pharmacopoeial standards where pharmaceutical application is intended. Standard packaging formats include drums and intermediate bulk containers for industrial quantities.
Physical Properties
| Melting Point | -5.9 °C |
| Boiling Point | 145-147 °C @ Press: 16 Torr |
| Density | 1.0253 g/cm³ @ Temp: 20 °C |
| Flash Point | 134°C |
| Color | Colorless to Almost colorless |
| Odor | at 10.00 % in dipropylene glycol. harsh clover ethyl benzoate |
| Form | liquid |
| Water Solubility | 2.8g/L(37 ºC) |
| Refractive Index | 1.5120 |
| Log P | 3.83 |
Safety & Handling (Learn More)
Warning GHS07
H
H302
P
P264P270P330P501P301+P317
Trade & Regulatory
| HS Code | 29182300 |
| WGK (Germany) | 3 |
Other Names
Butyl 2-HydroxybenzoateBrunoln-Butyl salicylateButyl o-hydroxybenzoateSalicylic acid, butyl ester
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