Tris(2-hydroxyethyl) isocyanurate
CAS 839-90-7
EC 212-660-9
Formula C9H15N3O6
MW 267.28 g/mol
Surfactants Personal Care & CosmeticsPlastics & Polymers Preservation & BiocideCross-linking & CuringHumectant & MoisturizingEmulsification & Dispersion
Description
Tris(2-hydroxyethyl) isocyanurate (THEIC, CAS 839-90-7) is a cyclic triazine-based polyol derived from isocyanuric acid. It carries no assigned E-code and has no established common trade name, though it is frequently referenced by the abbreviation THEIC in technical literature and formulation datasheets.
In polymer and resin systems, THEIC functions as a crosslinking agent by reacting its three hydroxyl groups with isocyanates, epoxies, or carboxylic acids to build thermally stable network structures. In personal care formulations, it acts as a humectant and skin conditioner by binding moisture at the surface, and its isocyanurate core contributes mild antimicrobial activity against certain microorganisms.
THEIC is supplied as a white crystalline powder and is subject to REACH registration requirements for EU import and use. Buyers should request a full Safety Data Sheet and confirm supplier compliance documentation before procurement. Standard packaging typically follows industrial bulk conventions; consult your supplier for available lot sizes and certificates of analysis.
In polymer and resin systems, THEIC functions as a crosslinking agent by reacting its three hydroxyl groups with isocyanates, epoxies, or carboxylic acids to build thermally stable network structures. In personal care formulations, it acts as a humectant and skin conditioner by binding moisture at the surface, and its isocyanurate core contributes mild antimicrobial activity against certain microorganisms.
THEIC is supplied as a white crystalline powder and is subject to REACH registration requirements for EU import and use. Buyers should request a full Safety Data Sheet and confirm supplier compliance documentation before procurement. Standard packaging typically follows industrial bulk conventions; consult your supplier for available lot sizes and certificates of analysis.
Physical Properties
| Melting Point | 135 °C |
| Boiling Point | 526.7±45.0 °C(Predicted) |
| Density | 1.498±0.06 g/cm3(Predicted) |
| Flash Point | 241°C |
| Appearance | white powder |
| Color | White to Off-White |
| Form | Solid |
| Water Solubility | 572g/L at 20℃ |
| Vapor Pressure | 0.001Pa at 50℃ |
| pH | 7 (100g/l, H2O, 20℃) |
| Log P | -1.63 at 23℃ |
Safety & Handling (Learn More)
Warning GHS07
H
H315H319H335
P
P261P264P271P280P319P321P405P501P264+P265P302+P352P304+P340P332+P317P337+P317P362+P364P403+P233P305+P351+P338
Trade & Regulatory
| HS Code | 29336980 |
| Storage Class | 11 - Combustible Solids |
| WGK (Germany) | 3 |
Other Names
1,3,5-tris(2-hydroxyethyl)-1,3,5-triazinane-2,4,6-trioneTHEICTris(hydroxyethyl) isocyanurateTris(β-hydroxyethyl) isocyanurate1,3,5-tris(2-hydroxyethyl)isocyanurate1,3,5-Tris(2-hydroxyethyl)cyanuric acid
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