Molecules in the peculiar age-defying source IRAS 19312+1950 Jian-Jie Qiu, Yong Zhang, Jun-ichi Nakashima, Jiang-Shui Zhang, Nico Koning, Xin-Di Tang, Yao-Ting Yan and Huan-Xue Feng A&A, 669 (2023) A121 Published online: 20 January 2023 DOI: 10.1051/0004-6361/202244559