.alpha.-Phenylcinnamic acid (trans-form). 91-47-4 Acrylic acid, 2,3-diphenyl-, (Z)- Benzeneacetic acid, .alpha.-(phenylmethylene)-, (Z)- NSC16645 cis-.alpha.-Phenylcinnamic acid cis-2,3-Diphenylacrylic acid cis-2,3-Diphenylpropenoic acid trans-.alpha.-Carboxystilbene