Molekula
Triphenylphosphine (TPP) Crystals
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) Crystals is a white, crystalline organophosphorus compound widely used as a ligand in homogeneous catalysis, a reagent in organic synthesis, and a stabilizer in polymers. It is also employed as a stoichiometric reagent in Wittig reactions and as a precursor to quaternary phosphonium salts, which are used as phase-transfer catalysts. This high-purity chemical has a CAS number of 603-35-0, a molecular formula of (C6H5)3P, and a molecular weight of 262.29 g/mol. It must be stored at ambient conditions and handled with caution, as it carries a Danger signal word. Molekula supplies Triphenylphosphine Crystals 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
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
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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.
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Specifications
| Property | Value |
|---|---|
| Appearance | White Crystals |
| Melting Point | 80-82°C |
| Content (HPLC) | >99.7 |
| Iron (Fe) | 9-10 ppm |
| Sulphates (SO4)(2-) | 9-13 ppm |
| Chlorine (Cl) | 11-13 ppm |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 180 °C |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 90029850 |
| 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
-
Corrosive
GHS05
-
Health Hazard
GHS07
-
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, 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) crystals commonly used for?
Triphenylphosphine is widely used as a ligand in homogeneous catalysis (e.g., palladium-catalyzed cross-coupling and rhodium-catalyzed hydroformylation), as a stoichiometric reagent in organic synthesis (e.g., Wittig, Mitsunobu, Appel and Staudinger reactions, where it is converted to triphenylphosphine oxide), and in the production of phosphonium salts and stabilizers.
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 crystals be stored?
Store in a tightly sealed container at ambient temperature, away from moisture and oxidizing agents, in a well-ventilated area.
What grades of triphenylphosphine does Molekula supply?
Molekula supplies technical-grade and reagent-grade triphenylphosphine crystals, with purity typically ≥98% for reagent-grade applications.
Can Molekula supply triphenylphosphine in bulk quantities?
Yes, Molekula can supply bulk quantities of TPP crystals (typically ≥25 kg) upon request, subject to availability and customer-specific requirements.
What documentation comes with an order of triphenylphosphine?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and a packing list; additional documentation like a Technical Data Sheet (TDS) or batch-specific records is available upon request.
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.