div class=trans-pagebuttonPage 1button div class=trans-image amp-img class=trans-thumb alt=Page 1: α-Amino-β-pyrazolyl-N Propionic Acid: a New Amino-Acid from Citrullus vulgaris Water Melon src=https:reader030fdocumentorgreader030viewer2022020405575068121a28ab0f07ae74c4html5thumbnails1jpg width=142 height=106 layout=responsive amp-img divp© Nature Publishing Group1959pdivdiv class=trans-pagebuttonPage 2button div class=trans-image amp-img class=trans-thumb alt=Page 2: α-Amino-β-pyrazolyl-N Propionic Acid: a New Amino-Acid from Citrullus vulgaris Water Melon src=https:reader030fdocumentorgreader030viewer2022020405575068121a28ab0f07ae74c4html5thumbnails2jpg width=142 height=106 layout=responsive amp-img divp© Nature Publishing Group1959pdiv