Molekula
Triphenylphosphine (TPP)
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
Triphenylphosphine (TPP) is a white crystalline organophosphorus compound widely used as a ligand in homogeneous catalysis, a reducing agent in organic synthesis, and a stabilizer in polymers. It is also employed in Wittig reactions and as a stoichiometric reagent in Mitsunobu and Appel reactions. This high-purity reagent has a CAS number of 603-35-0, a molecular formula of (C6H5)3P, and a molecular weight of 262.29 g/mol. Store at ambient conditions with proper ventilation, as it carries a danger signal word due to its risk of serious eye damage and organ damage through prolonged or repeated exposure. Molekula supplies Triphenylphosphine 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 — £18.50 per pack ex VAT · £22.20 inc. VAT
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1 kg — £61.00 per pack ex VAT · £73.20 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 | White Powder |
| Melting Point | 79 - 82℃ |
| Chloride (Cl-) | ≤ 15 ppm |
| Assay | ≥ 99.7% |
| Iron (Fe) | 9 - 10 ppm |
| Sulphates (SO4)(2-) | 9 - 13 ppm |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 180 °C |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 23253991 |
| CAS Number | 603-35-0 |
| Molecular Formula | (C6H5)3P |
| Molecular Weight | 262.29 |
| SMILES | C1=CC=C(C=C1)P(C2=CC=CC=C2)C3=CC=CC=C3 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2931.49.00.80 |
| Tariff Code | 2931498090 |
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
- H302+332 Harmful if swallowed or inhaled
- H317 May cause an allergic skin reaction
- H318 Causes serious eye damage
- H372 Causes damage to organs through prolonged or repeated exposure
- H373 May cause damage to organs through prolonged or repeated exposure
- H412 Harmful to aquatic life with long lasting effects
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
- 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 triphenylphosphine (TPP) commonly used for?
Triphenylphosphine is widely used as a ligand in homogeneous catalysis (e.g., in rhodium and palladium complexes such as Wilkinson's catalyst), as a stoichiometric reagent in Wittig reactions, where it forms the phosphonium salt and ylide and ends up as triphenylphosphine oxide, as a reducing agent in organic synthesis, and in the production of phosphonium salts.
What is the chemical formula and molecular weight of TPP?
The chemical formula is (C6H5)₃P, and the molecular weight is 262.29 g/mol.
How should triphenylphosphine be stored?
Store TPP at ambient temperature in a cool, dry place, away from moisture and oxidizing agents. Keep the container tightly sealed.
What grades of triphenylphosphine does Molekula supply?
Molekula supplies technical grade and reagent grade TPP, with purity levels suitable for research and industrial applications.
Can Molekula supply triphenylphosphine in bulk quantities?
Yes, Molekula offers bulk packaging options for TPP, including drums and IBCs, to meet large-scale production needs.
What documentation is provided with a TPP order?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS/SDS), and a packing list with batch-specific details.
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.