Electric Literature of 161265-03-8, Catalysts are substances that increase the reaction rate of a chemical reaction without being consumed in the process. 161265-03-8, Name is (9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(diphenylphosphine), molecular formula is C39H32OP2. In a Patent，once mentioned of 161265-03-8
COMPOSITION HAVING A MUGUET ODOR
The present invention relates to a composition of matter comprising a) at least one compound of formula (I) in the form of any one of its isomers or a mixture thereof; wherein R1 represents a hydrogen atom or a C1-2 alkyl group; and R represents a group of formula ? CH2C(Me)2OH; said R being, relative to position 1, a meta, a para substituent of the aromatic ring or a mixture thereof; and b) at least one compound of formula (II) in the form of any one of its isomers or a mixture thereof; wherein R1 and R have the same meaning as defined in formula (I); said R being, relative to position 1, an ortho, a meta, a para substituent of the aromatic ring or a mixture thereof; their uses as perfuming ingredients as well as the composition and consumer product including such a composition of matter and the process to prepare it.
The proportionality constant is the rate constant for the particular unimolecular reaction. the reaction rate is directly proportional to the concentration of the reactant. I hope my blog about 161265-03-8 is helpful to your research., Electric Literature of 161265-03-8
Reference：
Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate