Compound Q&A
Is 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) safe?
Answer
![racemic-8,8'-Bis(diphenylphosphino)-3,3',4,4'-tetrahydro-4,4,4',4',6,6'-hexamethyl-2,2'-spirobi[2H-1-benzopyran]](https://static.chemtradehub.com/structs/556/556797-94-5-fcc4.webp "racemic-8,8'-Bis(diphenylphosphino)-3,3',4,4'-tetrahydro-4,4,4',4',6,6'-hexamethyl-2,2'-spirobi[2H-1-benzopyran]")
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.
About
CAS No
556797-94-5
English Name
racemic-8,8'-Bis(diphenylphosphino)-3,3',4,4'-tetrahydro-4,4,4',4',6,6'-hexamethyl-2,2'-spirobi[2H-1-benzopyran]
Molecular Formula
C47H46O2P2
Molecular Weight
704.83 g/mol
SMILES
Cc1cc(P(c2ccccc2)c2ccccc2)c2c(c1)C(C)(C)CC1(O2)Oc2c(cc(cc2C(C1)(C)C)C)P(c1ccccc1)c1ccccc1
InChIKey
RQMTZMWXNZQOPD-UHFFFAOYSA-N
Last Updated: 2026-03-24 17:56
![racemic-8,8'-Bis(diphenylphosphino)-3,3',4,4'-tetrahydro-4,4,4',4',6,6'-hexamethyl-2,2'-spirobi[2H-1-benzopyran] — JiangSuAiKangShengWuYiYaoYanFa Co Ltd](https://static.chemtradehub.com/suppliers/67cec9452b2de6e8e95a52fa/67cec9452b2de6e8e95a52fa-logo.webp){kind=logo}
![racemic-8,8'-Bis(diphenylphosphino)-3,3',4,4'-tetrahydro-4,4,4',4',6,6'-hexamethyl-2,2'-spirobi[2H-1-benzopyran] — Shanghai Jixiang Biotechnology Co., Ltd.](https://static.chemtradehub.com/suppliers/67ce6f4d2b2de6e8e95a45bf/67ce6f4d2b2de6e8e95a45bf-logo.webp){kind=logo}