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Bis-(2,4,6-tri-t-butylphenyl)-chlorophosphite is a chemical compound with the formula [C6H2(CH3)3]2PCCl. It is a colorless, crystalline solid that is soluble in organic solvents. bis-(2,4,6-tri-t-butylphenyl)-chlorophosphite is primarily used as a ligand in organophosphorus chemistry, particularly in the synthesis of transition metal complexes. It is also employed as a stabilizer for polyolefins, such as polyethylene and polypropylene, to prevent oxidative degradation during processing and storage. Due to its high thermal stability and steric hindrance, bis-(2,4,6-tri-t-butylphenyl)-chlorophosphite is a valuable reagent in various chemical reactions and applications.

991-72-0

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991-72-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 991-72-0 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 9,9 and 1 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 991-72:
(5*9)+(4*9)+(3*1)+(2*7)+(1*2)=100
100 % 10 = 0
So 991-72-0 is a valid CAS Registry Number.

991-72-0Relevant academic research and scientific papers

CONVENIENT UNIMOLECULAR SOURCES OF ARYLOXYL RADICALS.III - PHOTOLYSIS OF BIS(ARYLOXY)PHOSPHINE AZIDES

Kalgutkar, Rajdeep,Ionkin, Alexey S.,Quin, Louis D.,Lahti, Paul M.

, p. 3889 - 3892 (1994)

Photolysis of sterically hindered bis(aryloxy)phosphine azides in solution, frozen matrix, or neat solid states leads to facile unimolecular production of aryloxyl radicals.

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