Julibrine I is a pyridoxine derivative found in the fresh stem bark of Albizzia julibrissin DURAzz, IV[1].
References
[1] H Higuchi, et al. An arrhythmic-inducing glycoside from Albizzia julibrissin Durazz, IV. Chem Pharm Bull (Tokyo). 1992 Mar;40(3):829-31. DOI:10.1248/cpb.40.829