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CAS 603-35-0 Triphenylphosphine Solid
Overview
Triphenylphosphine (PPh₃, CAS 603-35-0, C₁₈H₁₅P, 262.29 g/mol) is a versatile organophosphorus ligand and mild reducing agent used across fine chemicals, pharmaceuticals, and materials synthesis.Store tightly closed in a dry, inert environment to minimize oxidation to triphenylphosphine oxide; consult SDS for handling. (Packaging: 25 g · 100 g · 500 g · 1 kg · 25 kg; COA/TDS available.)
Product Description
CAS 603-35-0 Triphenylphosphine
Triphenylphosphine (PPh₃, CAS 603-35-0, C₁₈H₁₅P) is a versatile organophosphorus ligand and mild reducing agent widely applied in organic synthesis, pharmaceuticals, fine chemicals, and materials research.Its stability, wide compatibility, and reliable performance make it a cost-effective workhorse across diverse routes. Air/moisture exposure leads to oxidation to TPPO—store tightly closed in a dry, inert environment and handle per SDS.
Triphenylphosphine (PPh3) — Product Specification
CAS: 603-35-0 | Formula: C18H15P | Molecular weight: 262.29 g/mol | Synonyms: PPh3
Identity & Form
| Product form | White to off-white crystalline powder |
|---|---|
| Solubility | Soluble in toluene, THF, CH2Cl2, benzene; insoluble in water |
| Odor | Faint, characteristic |
| Documents | COA · TDS · SDS |
Typical Specification (example)
| Assay (GC) | ≥ 99.0% |
|---|---|
| Triphenylphosphine oxide (TPPO) | ≤ 0.30% |
| Water (Karl Fischer) | ≤ 0.10% |
| Chloride | ≤ 0.01% |
| Melting point | 78–82 °C |
| Appearance | White to off-white, free from visible impurities |
Applications & Handling
| Main uses | Ligand in Pd/Ni cross-couplings (Suzuki–Miyaura, Heck, Stille), Wittig/ylide chemistry, Mitsunobu/Appel transformations, Staudinger reductions |
|---|---|
| Handling | Avoid dust; minimize air/moisture exposure to limit oxidation to TPPO. Use standard PPE; follow SDS. |
| Storage | Tightly closed in a dry, inert environment; keep cool and away from oxidants/light. |
Packaging & Logistics
| Packaging | 1 kg / 5 kg / 10 kg bottles or 25 kg fiber drums with inner liner (custom on request) |
|---|---|
| Ports | Qingdao · Shanghai · Tianjin |
| To quote (please specify) | Purity grade, pack size, destination country/port, and required documents |
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PACKING AND DELIVERY
Packing and delivery
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