4-Hexylresorcinol
CAS 136-77-6
EC 205-257-4
Formula C12H18O2
MW 194.27 g/mol
Pharmaceutical Intermediates Pharmaceuticals & HealthcarePersonal Care & CosmeticsFood & NutritionPlastics & Polymers Preservation & BiocideAntioxidant & StabilizerUV Protection & StabilizationFlavoring & Acidulant
Description
4-Hexylresorcinol (CAS 136-77-6) is a phenolic compound also known commercially as S.T. 37, Caprokol, and Crystoids. It carries no assigned E-code and is classified under pharmaceutical intermediates, with the molecular formula C12H18O2.
In food processing, 4-hexylresorcinol inhibits enzymatic browning in crustaceans and cut produce by blocking polyphenol oxidase activity. In personal care formulations, it functions as an antimicrobial agent and skin-brightening active, disrupting melanin synthesis pathways. It also serves as a UV absorber and antioxidant in polymer systems, scavenging free radicals to delay thermal degradation.
The material is supplied as a powder or chunked solid and is available in pharmaceutical and food-contact grades meeting Ph.Eur. and FCC specifications. It falls under REACH regulation (EC 205-257-4) and is classified under HS code 29072900. Packaging formats are confirmed at the time of order based on volume and grade requirements.
In food processing, 4-hexylresorcinol inhibits enzymatic browning in crustaceans and cut produce by blocking polyphenol oxidase activity. In personal care formulations, it functions as an antimicrobial agent and skin-brightening active, disrupting melanin synthesis pathways. It also serves as a UV absorber and antioxidant in polymer systems, scavenging free radicals to delay thermal degradation.
The material is supplied as a powder or chunked solid and is available in pharmaceutical and food-contact grades meeting Ph.Eur. and FCC specifications. It falls under REACH regulation (EC 205-257-4) and is classified under HS code 29072900. Packaging formats are confirmed at the time of order based on volume and grade requirements.
Physical Properties
| Melting Point | 67.5-69 °C |
| Boiling Point | 178-180 °C @ Press: 6.7 Torr |
| Density | 1.0010 (rough estimate) |
| Flash Point | >100°C |
| Appearance | slightly red powder |
| Color | White to pale orange or pale pink |
| Form | Powder and/or Chunks |
| Water Solubility | 0.05 g/100 mL (18 ºC) |
| Vapor Pressure | 0.001Pa at 25℃ |
| Refractive Index | 1.5050 (estimate) |
| pH | 7.7 (0.5g/l, H2O, 20℃) |
| Log P | 3.34 at 20℃ |
Safety & Handling (Learn More)
Danger GHS07 GHS08
H
H302H315H319H335
P
P203P261P264P270P271P280P318P319P321P330P405P501P264+P265P301+P317P302+P352P304+P340P332+P317P337+P317P362+P364P403+P233P305+P351+P338
Trade & Regulatory
| HS Code | 29072900 |
| UN Number | 3077 |
| ADR Class | 9 |
| Packing Group | III |
| Storage Class | 11 - Combustible Solids |
| WGK (Germany) | 3 |
Other Names
4-hexylbenzene-1,3-diol4-hexyl-1,3-benzenediolS.T. 37CaprokolCrystoidsHEXYLRESORCINOL4-Hexylresorcine
Related Products
Raw Materials
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