Megazyme 半乳糖(GOS)Galactooligosaccharides (GOS)
| 1,3-β-D-Galactobiose | 2 mg | O-GBI3 |
| 1,4-β-D-Galactobiose | Multiple pack sizes available | O-GBI4 |
| 1,6-β-D-Galactobiose | 10 mg | O-GBI6 |
| 1,3-β-D-Galactosyl-D-glucose | 2 mg | O-LAC3 |
| Allolactose (1,6-β-D-Galactosyl-D-glucose) | 5 mg | O-LAC6 |