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Triethyl phosphite

Triethyl phosphite

CAS Number: 122-52-1

Molecular Formula: C6H15O3P

Purity: Triethyl phosphite 98% purity

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About Triethyl phosphite

Triethyl phosphite (CAS 122-52-1) is a vital organophosphorus reagent in the US API intermediates market, serving as a key precursor in the Michaelis-Arbuzov reaction for synthesizing phosphonates used in various pharmaceutical compounds where Pharma/API purity 99% is the benchmark for quality assurance. Phosphorous ac...

Synonyms

  • triethyl phosphite
  • triethyl phosphite, (32)P-labeled
  • TRIETHYL PHOSPHITE
  • 122-52-1
  • Triethoxyphosphine
View all

Triethyl phosphite Specifications

CAS Number
122-52-1
Molecular Formula
C6H15O3P
Molecular Weight
166.16 g/mol
IUPAC Name
triethyl phosphite
Canonical SMILES
CCOP(OCC)OCC
InChI Key
BDZBKCUKTQZUTL-UHFFFAOYSA-N
InChI
InChI=1S/C6H15O3P/c1-4-7-10(8-5-2)9-6-3/h4-6H2,1-3H3
HSN No
29202400
melting_point
-112 °C
boiling_point
311 °F at 760 mmHg (USCG, 1999)
solubility
Soluble in alcohol, ether
density
0.969 (USCG, 1999) - Less dense than water; will float
Molecular Weight
166.16 g/mol
Purity
Triethyl phosphite 98% purity
Physical appearance
Colorless liquid
odor
Strong foul odor
Melting Point
-112 °C
Boiling Point
156 °C
Freezing point
-112 °C
Flash Point
54 °C
logP
1.2
Precautionary Statement Codes
P210, P233, P273, P280, P301+P312, and P303+P361+P353
Hazard Classes and Categories
Flam. Liq. 3, Acute Tox. 4 (Oral), Skin Sens. 1B, and Aquatic Chronic 3

Reducing Agent

A versatile organophosphorus reagent used for the deoxygenation of hydroperoxides to alcohols and in the Corey-Winter olefin synthesis

Organic Synthesis Reagent

A key reactant in the Michaelis-Arbuzov reaction to produce organophosphonates for Horner-Wadsworth-Emmons reactions and in the synthesis of 1-aminocyclopropanephosphonic acid

Phosphine Ligand

A soft ligand employed in coordination chemistry and homogeneous catalysis to form stable complexes with metals like copper(I) iodide, iron, and nickel

Chemical Intermediate

An essential building block for the industrial manufacturing of flame retardants, optical brighteners, antioxidants, and agrochemicals such as insecticides

Polymer Additive

A functional plasticizer, stabilizer, and resin modifier used to enhance the properties of PVC, unsaturated polyesters, and rubber.

  1. triethyl phosphite
  2. triethyl phosphite, (32)P-labeled
  3. TRIETHYL PHOSPHITE
  4. 122-52-1
  5. Triethoxyphosphine

Triethyl phosphite FAQs

Minimum Order Quantity

25 kg (evaluation) · 1 MT (commercial)

Lead Time

3 – 5 weeks estimated

Delivery Terms

FOB*

Packaging

20 L pails, 200 L HDPE drums, 1000 L IBC

US Availability

US Facility Inventory

Documentation

US SDS · COA · TDS · Specification sheet

US Regulatory & Quality Information

TSCA status*

US SDS / HazCom*

GHS classification*

ISO 9001:2015 site*

DOT shipping classification*

FDA status*

EPA status*

California Prop 65*

Reliable US supply chain

Regulatory compliance

On-time delivery

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