Molekula
Tributyl phosphine (TBP)
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
Tributyl phosphine (TBP) is a tertiary phosphine compound widely used as a ligand in homogeneous catalysis, a reducing agent in organic synthesis, and a reagent in the preparation of phosphonium salts. It is also employed in polymer chemistry and as a stabilizer in certain industrial processes. CAS 998-40-3, molecular formula [CH3(CH2)3]3P, molecular weight 202.32 g/mol. Store at ambient temperatures. Signal word: Danger. Molekula supplies Tributyl phosphine 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 — $96.40 per pack
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 to light yellow liquid |
| Assay | ≥94% |
| Identification (IR) | Conforms to structure |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 4.2 |
| Packing Group | I |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| SKU | 39817445 |
| CAS Number | 998-40-3 |
| Molecular Formula | [CH3(CH2)3]3P |
| Molecular Weight | 202.32 |
| SMILES | CCCCP(CCCC)CCCC |
| UN Number | UN3254 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2931.49.0080 |
| Tariff Code | 2931498090 |
Safety & GHS
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Flammable
GHS02
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Corrosive
GHS05
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Health Hazard
GHS07
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Hazardous to the Environment
GHS09
Hazard statements
- H226 Flammable liquid and vapour
- H250 Catches fire spontaneously if exposed to air
- H302+312 Harmful if swallowed or in contact with skin
- H314 (sub cat. 1A) Causes severe skin burns and eye damage
- H411 Toxic to aquatic life with long lasting effects
Precautionary statements
- P210 Keep away from heat/sparks/open flames/hot surfaces - No smoking
- P231+232 Handle under inert gas. Protect from moisture
- P273 Avoid release to the environment
- 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
No alternate names recorded for this product.
Frequently asked questions
What is tributyl phosphine (TBP) commonly used for?
Tributyl phosphine is primarily used as a ligand in homogeneous catalysis, including palladium-catalyzed cross-coupling reactions like Suzuki and Heck couplings, and as a reducing agent in organic synthesis.
What is the chemical formula and molecular weight of TBP?
The chemical formula is [CH₃(CH₂)₃]₃P, and the molecular weight is 202.32 g/mol.
How should tributyl phosphine be stored?
TBP should be stored in a tightly sealed container under an inert atmosphere, away from moisture and oxidizing agents, at ambient temperature.
What purity grades of TBP does Molekula offer?
Molekula supplies tributyl phosphine in high-purity grades suitable for research and industrial applications, typically ≥98% purity.
Can Molekula supply TBP in bulk quantities?
Yes, Molekula can provide tributyl phosphine in bulk, with quantities tailored to meet specific customer requirements.
What documentation is provided with a TBP order?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and a product specification sheet detailing purity, impurities, and handling instructions.
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.