(Methoxymethyl)triphenylphosphonium chloride

CAS 4009-98-7(C6H5)3P(Cl)CH2OCH3Chemical Synthesis

(Methoxymethyl)triphenylphosphonium chloride (CAS 4009-98-7) is a Wittig reagent used in organic synthesis. With a molecular weight of 342.80 g/mol, this compound is instrumental in carbon-carbon bond formation, specifically through olefination reactions. Its primary application lies in the synthesis of complex organic molecules, serving as a valuable reagent for academic research and industrial chemical production. TSS supplies this chemical with a typical assay of 97%.

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(Methoxymethyl)triphenylphosphonium chloride ((C6H5)3P(Cl)CH2OCH3) — chemical structure, CAS 4009-98-7; Chemistry, fine chemical supplied by Tech Serve Solutions

C-C Bond FormationChemical SynthesisOlefinationSynthetic ReagentsWittig Reagents

01 /Applications

Wittig Reagent for Olefination

(Methoxymethyl)triphenylphosphonium chloride serves as a key precursor in the Wittig reaction. It enables the stereoselective formation of alkenes from carbonyl compounds, a fundamental transformation in organic synthesis.

Carbon-Carbon Bond Formation

This phosphonium salt is employed in various strategies for constructing carbon-carbon bonds. Its utility extends to the synthesis of complex organic architectures and intermediates in pharmaceutical and fine chemical manufacturing.

Synthetic Reagent in Organic Chemistry

As a versatile synthetic reagent, it finds application in diverse research and development settings. Its predictable reactivity facilitates the preparation of target molecules in multi-step syntheses.

02 /Properties

Molecular weight	342.80
Linear formula	(C6H5)3P(Cl)CH2OCH3
Assay	97%
Melting point	185-195 °C (dec.)(lit.)

03 /Safety & handling

GHS hazard pictogram: Harmful / irritant (GHS07) — Harmful / irritant

Warning

Hazard statements

H302Harmful if swallowed
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	dust mask type N95 (US), Eyeshields, Gloves
Water hazard class (WGK, DE)	3
Hazard codes (EU)	Xn
Risk statements (R)	22-36/37/38
Safety statements (S)	26-36

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry

CAS number

4009-98-7

MDL number

MFCD00011800

PubChem substance

24858739

Beilstein registry

3599844

05 /Quality & supply

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.

06 /Frequently asked questions

What is (Methoxymethyl)triphenylphosphonium chloride used for?

(Methoxymethyl)triphenylphosphonium chloride is primarily used as a Wittig reagent for olefination reactions, enabling the formation of carbon-carbon double bonds and serving as a general synthetic reagent in organic chemistry.

What is the CAS number and formula for (Methoxymethyl)triphenylphosphonium chloride?

The CAS number is 4009-98-7 and the linear formula is (C6H5)3P(Cl)CH2OCH3.

What grade and purity does Tech Serve Solutions supply?

Tech Serve Solutions supplies (Methoxymethyl)triphenylphosphonium chloride with a typical assay of 97%. We do not represent this product as USP, BP, or EP grade.

How should (Methoxymethyl)triphenylphosphonium chloride be handled safely?

Handle with appropriate personal protective equipment, including a dust mask (type N95 or equivalent), eyeshields, and gloves. Ensure adequate ventilation, and avoid breathing dust. It is classified as harmful if swallowed and causes skin, eye, and respiratory irritation (H302, H315, H319, H335).