Diethyl phosphite
Diethyl phosphite (CAS: 762-04-9) is a chemical compound with the linear formula (C2H5O)2P(O)H and a molecular weight of 138.10 g/mol. It is a versatile reagent primarily utilised in chemical synthesis and as a phosphorus precursor. Its properties make it valuable in various catalytic applications and as a building block for more complex organophosphorus compounds. This compound is supplied by TSS with a high purity of ≥99.0%.
Chemical Synthesis Intermediate
Diethyl phosphite serves as a key intermediate in the synthesis of various organic compounds. It is particularly useful in reactions like the Pudovik reaction and the Michaelis-Arbuzov reaction for creating carbon-phosphorus bonds.
Phosphorus Precursor
As a phosphorus precursor, it is employed in the production of flame retardants and other phosphorus-containing materials. Its structure allows for the controlled introduction of phosphorus into organic molecules.
Catalysis
In catalysis, diethyl phosphite can act as a ligand or a precursor for catalytic species. It finds application in various organic transformations where phosphorus-based catalysts are beneficial.
| Molecular weight | 138.10 |
|---|---|
| Linear formula | (C2H5O)2P(O)H |
| Assay | ≥99.0% (GC) |
| Grade | puriss. |
| Boiling point | 50-51 °C/2 mmHg(lit.) |
| Density | 1.072 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.407(lit.)n20/D 1.407 |
Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | Eyeshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 82 °C / 179.6 °F |
| Transport (UN / ADR) | NA 1993 / PGIII |
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36/37/39 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Diethyl phosphite used for?
+
Diethyl phosphite is primarily used in chemical synthesis as an intermediate and as a phosphorus precursor. It is also utilised in certain catalytic applications.
What is the CAS number and formula for Diethyl phosphite?
+
The CAS number for Diethyl phosphite is 762-04-9, and its linear formula is (C2H5O)2P(O)H.
What grade and purity does Tech Serve Solutions supply for Diethyl phosphite?
+
Tech Serve Solutions supplies Diethyl phosphite with a purity of ≥99.0% (GC), specified as 'puriss.' grade. This product is not represented as USP, BP, or EP grade.
How should Diethyl phosphite be handled safely?
+
Diethyl phosphite is classified as a Warning, with hazards including skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). Appropriate personal protective equipment, including eyeshields and gloves, should be worn, and handling should occur in a well-ventilated area or with suitable respiratory protection.
Is Diethyl phosphite a controlled substance?
+
The provided data does not indicate that Diethyl phosphite is a controlled substance.
How is Diethyl phosphite packed, shipped, and exported?
+
Diethyl phosphite is classified under NA 1993 / PGIII for transport. TSS exports fine chemicals globally, adhering to all relevant shipping regulations for hazardous materials.
How can I request a sample or quote for Diethyl phosphite?
+
To request a sample or a quote for Diethyl phosphite, please contact the Tech Serve Solutions sales team through the website or by phone.
▶ Related products
Benzeneruthenium(II) chloride dimer
Ru2(C6H6)2Cl4
Catalysis & Inorganic
Benzoylferrocene
C17H14FeO
Catalysis & Inorganic
Benzyldiphenylphosphine
C6H5CH2P(C6H5)2
Catalysis & Inorganic
Beryllium
Be
Catalysis & Inorganic
Beryllium oxide
BeO
Catalysis & Inorganic![Bicyclo[2.2.1]hepta-2,5-diene-rhodium(I) chloride dimer — chemical structure, CAS 12257-42-0; Catalysis & Inorganic, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F12257-42-0.png&w=3840&q=75)
Bicyclo[2.2.1]hepta-2,5-diene-rhodium(I) chloride dimer
Catalysis & Inorganic
![Bis[(10,11-η)-5-[(11bS)-dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-yl- κP4]-5H-dibenz[b,f]azepine]rhodium(I) tetrafluorobo — chemical structure, CAS 1228149-03-8; Catalysis & Inorganic, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F1228149-03-8.png&w=3840&q=75)
Bis[(10,11-η)-5-[(11bS)-dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-yl- κP4]-5H-dibenz[b,f]azepine]rhodium(I) tetrafluorobo
1-d:1′
Catalysis & Inorganic![Bis[(2-dimethylamino)phenyl]amine nickel(II) chloride (C16H20ClN3Ni) — chemical structure, CAS 1033772-47-2; Catalysis & Inorganic, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F1033772-47-2.png&w=3840&q=75)
Bis[(2-dimethylamino)phenyl]amine nickel(II) chloride
C16H20ClN3Ni
Catalysis & Inorganic▶ Explore more
3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis
3-Methyl-1,5-pentanediol
Chemical Synthesis
3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis