5-(4-Hydroxypiperidino)-2-Thio

5-(4-Hydroxypiperidino)-2-thiophenecarbaldehyde

5-(4-hydroxypiperidin-1-yl)thiophene-2-carbaldehyde

2-Formyl-5-(4-hydroxypiperidin-1-yl)thiophene, 1-(5-Formylthien-2-yl)-4-hydroxypiperidine