Product Description DL-Tryptophan Other Details Molecular Formula: C11H12N2O2 Molecular Weight: 204.23 CAS Number: 54-12-6 Minimum Purity: 0.98 UN Number: 0 Dangerous Goods Class: 0 Packing Group: 0 Storage Temperature: 0 Sizes 1: 5g Leadtime:20 Days Sizes 2: 25g Leadtime:20 Days Sizes 3: 100g Leadtime:20 Days