About this product
Di Ethyl Phthalate (DEP), also written Diethyl Phthalate, is the diethyl ester of phthalic acid — CAS 84-66-2, an odourless plasticizer used to add flexibility to PVC compounds and plastic formulations. We supply DEP in Industrial Grade, Min 99.0% purity, sourced from KLJ Group and Thirumalai Chemicals, with spec values traceable to the manufacturer's Certificate of Analysis. Stocked in drums at our Redhills warehouse in Chennai for dispatch across South India.
Applications & Uses
Safety & Technical Documents
MSDS / SDS
TDS / COA
Certificate of Analysis · with every supply, on request
Need another sheet? Browse the full SDS & TDS library — safety and technical data sheets for every product we stock.
Product DataTechnical Specifications
Physical Properties
- Appearance
- Odourless liquid; colour 30 max APHA (Pt-Co scale)
- Purity
- 99.00% min (wt/wt)
- Assay
- 99.00% min by Gas Chromatography; ester content 99.00% min (wt/wt)
- Density
- Specific gravity 1.115 – 1.118 at 25°C
- Refractive Index
- 1.500 – 1.505 at 25°C
Supply & Packaging
- Packaging
- Drums
- Grades Available
- Industrial Grade (Min 99.0% purity)
Compliance & Storage
- HS Code
- 2917 32 00
- Storage
- Combustible liquid. Use with adequate ventilation and personal protective equipment; avoid skin and eye contact and inhalation of vapour or mist.
These specs are indicative. Request a Certificate of Analysis (COA) for batch-specific values.
Source Manufacturers
Sourced directly from verified manufacturers for consistent quality and traceability.
Supplied across South IndiaCoimbatoreMaduraiHosurBangaloreHyderabadVisakhapatnamKochi
Frequently Asked Questions
What is diethyl phthalate (DEP) used for?
DEP is a plasticizer — it is used in PVC compounding and plastic processing to soften rigid polymer and add flexibility, alongside plasticizers such as DOP and DBP. Its odourless character and low colour (30 max APHA) suit formulations where appearance and smell matter.
What is the CAS number and HSN code of diethyl phthalate?
Di Ethyl Phthalate carries CAS number 84-66-2 and HSN code 2917 32 00. It is the diethyl ester of phthalic acid.
What is the DEP chemical full form, and how else is it written?
DEP stands for Diethyl Phthalate. The same product is written Di Ethyl Phthalate, Di-Ethyl Phthalate or Diethyl phthalate — all refer to CAS 84-66-2.
What grade and specification of diethyl phthalate do you supply?
We supply Industrial Grade DEP at Min 99.0% purity — 99.00% min ester content and 99.00% min purity by Gas Chromatography, with 0.30% max moisture and 0.01% max acidity as phthalic acid. Typical physical values are specific gravity 1.115 – 1.118 at 25 °C, viscosity 8 – 12 cps at 25 °C and refractive index 1.500 – 1.505 at 25 °C, traceable to the manufacturer's Certificate of Analysis. Full figures are on our TDS (SPC-TDS-PLA-005), available as a download.
Is diethyl phthalate flammable, and how should it be handled?
DEP is classified as a combustible liquid. Avoid skin and eye contact and inhalation of vapour or mist, and use it with adequate ventilation and personal protective equipment — full details are in the downloadable SPC MSDS for this product.
Can I buy diethyl phthalate in bulk in Chennai, and what packing is available?
Yes. We stock DEP in drums at our Redhills warehouse in Chennai and dispatch across South India; our office is in Periyamet, Chennai. Order sizes depend on packaging and current stock — call or WhatsApp +91 86087 80096 for a quote.
Packaging Options
Product Details
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