15218-38-9 5-Amino-5-deoxy-D-glucopyranose Antibiotic R-468 BRN 5246306 D-Glucopyranose, 5-amino-5-deoxy- (9CI) Glucopyranose, 5-amino-5-deoxy-, D- Nojirimycin R 468 Substance SF-425 U 51640