1439-41-4 Usage
General Description
Tris(2-cyanoethyl)phosphine oxide is a chemical compound used as a flame retardant and a cross-linking agent in various industries. It is a phosphorus-based compound that contains three 2-cyanoethyl groups attached to a central phosphorus atom. tris(2-cyanoethyl)phosphine oxide is known for its high thermal stability and ability to inhibit the spread of flames, making it useful in the production of flame-resistant materials such as textiles, plastics, and coatings. Tris(2-cyanoethyl)phosphine oxide is also used as a curing agent for epoxy resins and as a stabilizer in PVC formulations. Additionally, it finds application in the synthesis of pharmaceuticals and agrochemicals. However, tris(2-cyanoethyl)phosphine oxide should be handled with care as it is toxic and can cause irritation to the skin, eyes, and respiratory system.
Check Digit Verification of cas no
The CAS Registry Mumber 1439-41-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,4,3 and 9 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1439-41:
(6*1)+(5*4)+(4*3)+(3*9)+(2*4)+(1*1)=74
74 % 10 = 4
So 1439-41-4 is a valid CAS Registry Number.
InChI:InChI=1/C9H12N3OP/c10-4-1-7-14(13,8-2-5-11)9-3-6-12/h1-3,7-9H2
1439-41-4Relevant articles and documents
Unusual aryl-aryl coupling of 6-bromo-1,2-naphthoquinone to 6,6'-dibromo-1,1',2,2'-tetrahydroxy-4,4'-binaphthyl in the presence of trialkylphosphine and water
Bogdanov, Andrei V.,Khasiyatullina, Nadezhda R.,Mironov, Vladimir F.,Krivolapov, Dmitry B.,Litvinov, Igor A.,Konovalov, Alexander I.
experimental part, p. 39 - 41 (2009/07/05)
The reaction of 6-bromo-1,2-naphthoquinone with tri(2-cyanoethyl)phosphine or tricyclohexylphosphine leads to the unusual formation of 6,6'-dibromo-1,1',2,2'-tetrahydroxy-4,4'-binaphthyl; its structure was confirmed by NMR spectroscopy and single crystal
