Molekula
Dibutyl phosphate
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
Dibutyl phosphate is an organophosphorus compound used as a plasticizer, solvent, and intermediate in chemical synthesis. It is also employed as a catalyst in phenolic, urea and paint resin production, as an antifoaming agent, and in metal separation and extraction. It is a colorless to pale yellow liquid with a mild odor. CAS: 107-66-4, Molecular formula: C8H19O4P, Molecular weight: 210.2078 g/mol. Store at ambient temperature. Hazard classification: Danger. Molekula supplies Dibutyl phosphate 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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100 g — £30.90 per pack ex VAT · £37.08 inc. VAT
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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 | Clear, nearly colourless liquid |
| Colour (Pt-Co) | <100 |
| Water (KF) | <0.3% |
| Assay (Potentiometric Titration) | >97% |
| Acidity (mgKOH/g) | 259-267 |
| Density (20°C) | 1.055-1.061 g/cm3 |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 157 °C |
| Transport Class | 8 |
| Packing Group | II |
| Acidity | Acid |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Pale-amber liquid or oil |
| Odour | Odorless |
| Melting Point | -13 °C |
| Boiling Point | 136 °C at 0.05 mmHg |
| Density | 1.06 (relative, water = 1) |
| Water Solubility | 17.2 g/L at 25 °C |
| Solubility (other solvents) | Soluble in carbon tetrachloride, butanol |
| Vapour Pressure | 0.13 kPa at 20 °C |
Source: PubChem CID 7881 (HSDB, ICSC)
Identification
| Property | Value |
|---|---|
| SKU | 89993046 |
| CAS Number | 107-66-4 |
| IUPAC Name | dibutyl hydrogen phosphate |
| EC Number | 203-509-8 |
| Molecular Formula | C8H19O4P |
| Molecular Weight | 210.2078 |
| Exact Mass | 210.1021 |
| SMILES | CCCCOP(=O)(O)OCCCC |
| InChIKey | JYFHYPJRHGVZDY-UHFFFAOYSA-N |
| InChI | InChI=1S/C8H19O4P/c1-3-5-7-11-13(9,10)12-8-6-4-2/h3-8H2,1-2H3,(H,9,10) |
| PubChem CID | 7881 |
| UN Number | UN3265 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2919.90.50.50 |
| Tariff Code | 2919900090 |
Safety & GHS
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Corrosive
GHS05
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Health Hazard
GHS07
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Serious Health Hazard
GHS08
Hazard statements
- H314 (sub cat. 1B) Causes severe skin burns and eye damage
- H318 Causes serious eye damage
- H335 May cause respiratory irritation
- H336 May cause drowsiness or dizziness
- H351 Suspected of causing cancer
- H373 May cause damage to organs through prolonged or repeated exposure
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P303+361 IF ON SKIN (or hair): Remove immediately all contaminated clothing. Rinse with water/shower
- P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P310 Immediately call a POISON CENTER or doctor/physician
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
- Di-n-butyl hydrogen phosphate
- Di-n-butyl phosphate
- Di-n-butylphosphoric acid
- dibutyl acid o-phosphate
- Dibutyl acid phosphate
- Dibutyl hydrogen phosphate
- Dibutyl phosphoric acid
- DP 4 (coupling agent)
- HDBP
- Phosphoric acid, dibutyl ester
Frequently asked questions
What is dibutyl phosphate commonly used for?
Dibutyl phosphate is primarily used as a plasticizer, flame retardant, and intermediate in organic synthesis, including the production of pesticides and pharmaceuticals.
What is the chemical formula and molecular weight of dibutyl phosphate?
The chemical formula is **C₈H₁₉O₄P**, and the molecular weight is **210.2078 g/mol**.
How should dibutyl phosphate be stored?
Store at **ambient temperature** in a cool, dry place, away from incompatible substances and sources of ignition.
What grades or purities of dibutyl phosphate does Molekula supply?
Molekula supplies **technical-grade and high-purity dibutyl phosphate** (typically ≥98% purity).
Can Molekula supply dibutyl phosphate in bulk quantities?
Yes, Molekula can supply dibutyl phosphate in **bulk quantities**, with flexible packaging options (drums, IBCs, or custom solutions).
What documentation comes with a dibutyl phosphate order?
Each order includes a **Certificate of Analysis (CoA), Safety Data Sheet (SDS), and a Material Safety Information sheet** for compliance and handling.
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.