1-Material:                                           OS0737, PBDTTT-CF

Chemical Name:                                 Poly[1-(6-{4,8-bis[(2-ethylhexyl)oxy]-6-methylbenzo [1,2-b:4,5-b′]dithiophen-2-yl}-3-fluoro-4-methylthieno[3,4-b]thiophen-2-yl)-1-octanone

CAS # :                                               1379592-65-0

Appearance:                                       Dark green-blue fine particle

Molecular weight (GPC):                    ~20K (Mw, PS Standard), PDI~2.5

Solubility:                                            Soluble in THF, chloroform and other selected solvents

NMR analysis:                                     Structure confirmed.

Assay:                                                 99+% (basing on NMRs of monomers)