Methylbis(phenylethynyl)phosphine oxide is a phosphorus-containing organic compound with the chemical formula C17H13OP. It is a colorless to pale yellow crystalline solid, soluble in common organic solvents such as ethanol, acetone, and dichloromethane. methylbis(phenylethynyl)phosphine oxide is characterized by its phosphorus atom bonded to a methyl group and two phenylethynyl groups, which are ethynyl groups attached to a phenyl ring. The molecule features a phosphine oxide functional group, which is an oxygen atom double-bonded to the phosphorus atom. Methylbis(phenylethynyl)phosphine oxide is synthesized through the reaction of diphenylethynylphosphine with an oxidizing agent, such as hydrogen peroxide or m-chloroperoxybenzoic acid. It is used in various applications, including the synthesis of phosphorus-containing ligands for transition metal complexes, which are important in homogeneous catalysis and materials science.

4319-04-4

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Basic information
1. Product Name: methylbis(phenylethynyl)phosphine oxide
2. Synonyms: methylbis(phenylethynyl)phosphine oxide
3. CAS NO:4319-04-4
4. Molecular Formula:
5. Molecular Weight: 264.263
6. EINECS: N/A
7. Product Categories: N/A
Chemical Properties
1. Melting Point: N/A
2. Boiling Point: N/A
3. Flash Point: N/A
4. Appearance: N/A
5. Density: N/A
6. Refractive Index: N/A
7. Storage Temp.: N/A
8. Solubility: N/A
9. CAS DataBase Reference: methylbis(phenylethynyl)phosphine oxide(CAS DataBase Reference)
10. NIST Chemistry Reference: methylbis(phenylethynyl)phosphine oxide(4319-04-4)
11. EPA Substance Registry System: methylbis(phenylethynyl)phosphine oxide(4319-04-4)
Safety Data
1. Hazard Codes: N/A
2. Statements: N/A
3. Safety Statements: N/A
4. WGK Germany:
5. RTECS:
6. HazardClass: N/A
7. PackingGroup: N/A
8. Hazardous Substances Data: 4319-04-4(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 4319-04-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,3,1 and 9 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 4319-04:
(6*4)+(5*3)+(4*1)+(3*9)+(2*0)+(1*4)=74
74 % 10 = 4
So 4319-04-4 is a valid CAS Registry Number.

4319-04-4Upstream product

76287-27-9 Methyl-tris-phenylethynyl-phosphonium; iodide

4319-04-4Downstream Products

4319-04-4Relevant academic research and scientific papers

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