1. Basic Identification Information

Parameter	English Specification/Value
IUPAC Name	4,4',4''-(1,3,5-Triazine-2,4,6-triyltriimino)tris-benzoic acid tris(2-ethylhexyl) ester
Common Name(s)	Ethylhexyl Triazone (INCI name); EHT; Octyl Triazone; Uvinul T 150 (BASF trade name); Neo Heliopan EHT (Symrise trade name); PARSOL® EHT (DSM-Firmenich trade name)
CAS Registry Number	88122-99-0
EC/EINECS Number	402-070-1
Molecular Formula	C₄₈H₆₆N₆O₆
Molecular Weight	823.07 g/mol
Chemical Class	Triazine derivative; oil-soluble organic UVB/UVA-II filter; sunscreen agent; photostabilizer
Related Compound	Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine (BEMT) (CAS 187393-00-6) - broader UVA/UVB coverage; stabilizer for EHT and avobenzone

2. Physicochemical Properties

Property Category	Specific Parameter	Specification/Value
Structural Features	Functional Groups	Triazine core (1,3,5-triazine); three anilino groups; three ester linkages (-COO-); three 2-ethylhexyl side chains
Physical Appearance	State & Color	Off-white to pale yellow crystalline powder or viscous oil (varies by formulation); odorless or slight characteristic odor
	Melting Point	45-50 °C (crystalline form); liquid formulations available with lower melting points
	Boiling Point	Decomposes above 200 °C (not measurable at atmospheric pressure)
	Density (25 °C)	1.07-1.09 g/cm³ (liquid form)