The systematic name of (R)-(S)-Josiphos is 1,2,3,4,5-cyclopentanepentayl, compd. with 1-[(1R)-1-(dicyclohexylphosphino)ethyl]-2-(diphenylphosphino)-1,2,3,4,5-cyclopentanepentayl, iron salt (1:1:1). With the CAS registry number 155806-35-2, it is also named as (R)-1-[(1S)-2-(Diphenylphosphino)ferrocenyl]ethyldicyclohexylphosphine. Besides, it is orange crystalline powder, which should be sealed in a cool, dry place under the protection of inert gas. In addition, its molecular formula is C₃₆H₄₄FeP₂ and molecular weight is 594.53.

When you are using (R)-(S)-Josiphos, please be cautious about it as the following: it irritates to eyes, respiratory system and skin. You should avoid contact with skin and eyes.

People can use the following data to convert to the molecule structure.
(1)SMILES: CC([C]1[CH][CH][CH][C]1P(c2ccccc2)c3ccccc3)P(C4CCCCC4)C5CCCCC5.[CH]1[CH][CH][CH][CH]1.[Fe]
(2)InChI: InChI=1/C31H39P2.C5H5.Fe/c1-25(32(26-15-6-2-7-16-26)27-17-8-3-9-18-27)30-23-14-24-31(30)33(28-19-10-4-11-20-28)29-21-12-5-13-22-29;1-2-4-5-3-1;/h4-5,10-14,19-27H,2-3,6-9,15-18H2,1H3;1-5H;/t25-;;/m1../s1
(3)InChIKey: HGTBZFMPHBAUCQ-KHZPMNTOBH
(4)Std. InChI: InChI=1S/C31H39P2.C5H5.Fe/c1-25(32(26-15-6-2-7-16-26)27-17-8-3-9-18-27)30-23-14-24-31(30)33(28-19-10-4-11-20-28)29-21-12-5-13-22-29;1-2-4-5-3-1;/h4-5,10-14,19-27H,2-3,6-9,15-18H2,1H3;1-5H;/t25-;;/m1../s1
(5)Std. InChIKey: HGTBZFMPHBAUCQ-KHZPMNTOSA-N