The Phosphonium,cyclopentyltriphenyl-, bromide (1:1), with the CAS registry number 7333-52-0, has the systematic name of cyclopentyl(triphenyl)phosphonium bromide. It is a kind of organics, and should be stored in the dry and cool environment. And the molecular formula of the chemical is C₂₃H₂₄BrP.

The characteristics of Phosphonium,cyclopentyltriphenyl-, bromide (1:1) are as followings: (1)#H bond acceptors: 0; (2)#H bond donors: 0; (3)#Freely Rotating Bonds: 4; (4)Polar Surface Area: 0 Å².   

Preparation of Phosphonium,cyclopentyltriphenyl-, bromide (1:1): This chemical can be prepared by triphenylphosphane and bromocyclopentane. The reaction time is 5 hours with heating, and the yield is about 60%. 

Uses of Phosphonium,cyclopentyltriphenyl-, bromide (1:1): It can react with benzaldehyde to produce cyclopentylidene-phenyl-methane. This reaction will need reagent 20% BuLi, and the menstruum tetrahydrofuran and hexane. The reaction time is 6 hours with heating, and the yield is about 63%.

You should be cautious while dealing with this chemical. It irritates to eyes, respiratory system and skin. Therefore, you had better take the following instructions: Wear suitable protective clothing, gloves and eye/face protection, and if in case of contacting with eyes, rinse immediately with plenty of water and seek medical advice.

Addtionally, the following datas could be converted into the molecular structure:
(1)SMILES: [Br-].c1cc(ccc1)[P+](c2ccccc2)(c3ccccc3)C4CCCC4
(2)InChI: InChI=1/C23H24P.BrH/c1-4-12-20(13-5-1)24(23-18-10-11-19-23,21-14-6-2-7-15-21)22-16-8-3-9-17-22;/h1-9,12-17,23H,10-11,18-19H2;1H/q+1;/p-1
(3)InChIKey: WZYWSVSFFTZZPE-REWHXWOFAP