tert-Butyl 2-oxa-7-azaspiro[3.5]nonane-7-carboxylate 95% 240401-27-8 C₁₂H₂₁NO₃ 227 g./mol ฿6,444.00 View
2-Amino-6-aza-spiro[3.4]octane-6-carboxylic acid tert-butyl ester 95% 1239319-94-8 C₁₂H₂₂N₂O₂ 226.32 g./mol ฿99,020.00 View