racemic-8,8'-Bis(diphenylphosphino)-3,3',4,4'-tetrahydro-4,4,4',4',6,6'-hexamethyl-2,2'-spirobi[2H-1-benzopyran](CAS: 556797-94-5)

Racemic-8,8'-Bis(diphenylphosphino)-3,3',4,4'-tetrahydro-4,4,4',4',6,6'-hexamethyl-2,2'-spirobi[2H-1-benzopyran] is a chiral organic compound with a unique spiro structure. It is characterized by its high stability and unique electronic properties, making it useful in various applications.

Racemic-8,8'-Bis(diphenylphosphino)-3,3',4,4'-tetrahydro-4,4,4',4',6,6'-hexamethyl-2,2'-spirobi[2H-1-benzopyran] is primarily used as a chiral ligand in asymmetric catalysis, playing a critical role in the synthesis of enantiomerically pure compounds for pharmaceuticals and agrochemicals.

Racemic-8,8'-Bis(diphenylphosphino)-3,3',4,4'-tetrahydro-4,4,4',4',6,6'-hexamethyl-2,2'-spirobi[2H-1-benzopyran] is generally considered safe when used according to safety guidelines. It is important to handle this compound with care to avoid skin contact and inhalation, and to ensure proper laboratory ventilation.

Racemic-8,8'-Bis(diphenylphosphino)-3,3',4,4'-tetrahydro-4,4,4',4',6,6'-hexamethyl-2,2'-spirobi[2H-1-benzopyran] should be stored in a cool, dry place, away from direct sunlight and heat sources. It is recommended to store it in a tightly sealed container to prevent degradation and preserve its stability.