Diethyl phthalate (DEP 99.5%, CAS 84-66-2) is a clear, colorless oily liquid with faint aromatic odor. It is a low-volatility plasticizer and fragrance fixative, compatible with cellulose resins, widely used in perfume, cosmetics, coating and pharmaceutical coating industries. TNJ Chemical is the leading manufacturer and exporter since 2001. We guarantee high quality, competitive price, stable supply, fast delivery and tech support etc. To inquire more, please contact sales@tnjchem.com
Product Information
CAS No.: 84-66-2
Synonyms: DEP, Phthalic acid diethyl ester
Molecular Formula: C₁₂H₁₄O₄Molecular Weight: 222.24
EINECS: 201-550-6
INCI: Diethyl Phthalate
Appearance: clear colorless oily liquid
Density: 1.118–1.122 g/cm³ (20 ℃)
Boiling point: 296 ℃Flash point (closed cup): 152 ℃
Melting point: -40 ℃
Solubility: slightly soluble in water, miscible with alcohol, ether and most organic solvents
Characteristic: low volatility, good resin compatibility
| Item | Standard Grade |
|---|---|
| Assay | ≥99.5% |
| Color (Pt-Co) | ≤10 |
| Water | ≤0.05% |
| Acidity (as phthalic acid) | ≤0.01% |
| Refractive index (20℃) | 1.499–1.503 |
Use & Application
Fragrance & cosmetics: fixative and carrier solvent for perfumes and personal care products
Cellulose acetate: primary plasticizer for films, filters and fibers
Coatings & inks: plasticizer for nitrocellulose lacquer and leather finish
Pharma: plasticizer for tablet enteric coating
Industrial solvent for insect repellent and dye formulations
Package: 210kg steel drum; bulk shipment available
Store in cool, dry, ventilated warehouse, away from strong oxidants
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