Molekula
Dioctyl phthalate
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Dioctyl phthalate is a plasticizer used to increase the flexibility and workability of plastics, particularly polyvinyl chloride (PVC). It is also used in adhesives, sealants, and coatings. CAS: 117-84-0, Molecular Formula: C24H38O4, Molecular Weight: 390.56 g/mol, Storage: Ambient, Signal Word: Danger. Molekula supplies Dioctyl phthalate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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25 g — £35.80 per pack ex VAT · £42.96 inc. VAT
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Colourless liquid |
| Density | 0.983 - 0.985 |
| Refractive Index | 1.486 - 1.487 |
| Flash Point | ≥195 ℃ |
| Water | 0.1% |
| Viscosity | 77 - 82 |
| Identification | Conforms to reference |
| Assay | ≥98.0% |
| Acidity | ≤0.10% |
| Chroma (Pb-Co) | ≤30 |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 109 °C |
| Transport Class | 9 |
| Packing Group | III |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Clear, oily liquid |
| Melting Point | 25 °C |
| Boiling Point | 220 °C |
| Water Solubility | 0.022 mg/L at 25 °C |
| Vapour Pressure | 1.0 × 10⁻⁷ mmHg at 25 °C |
| Refractive Index | 1.485 |
| log P (octanol/water) | 8.10 |
Source: PubChem CID 8346 (HSDB, Occupational Safety and Health Administration (OSHA))
Identification
| Property | Value |
|---|---|
| SKU | 17378516 |
| CAS Number | 117-84-0 |
| IUPAC Name | dioctyl benzene-1,2-dicarboxylate |
| EC Number | 204-214-7 |
| Molecular Formula | C6H4(COOCH2(CH2)6CH3)2 |
| Molecular Weight | 390.56 |
| Exact Mass | 390.277 |
| SMILES | CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC |
| InChIKey | MQIUGAXCHLFZKX-UHFFFAOYSA-N |
| InChI | InChI=1S/C24H38O4/c1-3-5-7-9-11-15-19-27-23(25)21-17-13-14-18-22(21)24(26)28-20-16-12-10-8-6-4-2/h13-14,17-18H,3-12,15-16,19-20H2,1-2H3 |
| PubChem CID | 8346 |
| UN Number | UN3082 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2917320000 |
| Tariff Code | 2917320090 |
Safety & GHS
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Corrosive
GHS05
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Health Hazard
GHS07
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Serious Health Hazard
GHS08
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Hazardous to the Environment
GHS09
Hazard statements
- H315 Causes skin irritation
- H318 Causes serious eye damage
- H361 Suspected of damaging fertility or the unborn child
- H410 Very toxic to aquatic life with long lasting effects
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- Bis(n-octyl) phthalate
- Celluflex DOP
- DI-N-OCTYL PHTHALATE
- Dinopol NOP
- Dioctyl 1,2-benzenedicarboxylate
- DNOP
- n-Octyl phthalate
- Phthalic acid, dioctyl ester
- Px-138
- Vinicizer 85
Frequently asked questions
What is dioctyl phthalate used for?
Dioctyl phthalate is primarily used as a plasticizer in polyvinyl chloride (PVC) products to increase flexibility and durability.
What is the chemical formula and molecular weight of dioctyl phthalate?
The formula is C6H4(COOCH2(CH2)6CH3)2 with a molecular weight of 390.56 g/mol.
How should dioctyl phthalate be stored?
It should be stored at ambient temperature, away from direct sunlight and incompatible materials.
What grade of dioctyl phthalate does Molekula supply?
Molekula supplies technical grade dioctyl phthalate suitable for industrial applications.
Can Molekula supply dioctyl phthalate in bulk?
Yes, Molekula can supply dioctyl phthalate in bulk quantities; please contact us for pricing and availability.
What documentation comes with a purchase of dioctyl phthalate?
Each order includes a Certificate of Analysis and Safety Data Sheet (SDS) compliant with GHS standards.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.