DOTA-NHS ester Product Catalog # Size Price (USD) Quantity DOTA-NHS ester330407-100MG100 mg$350.00 - DOTA-NHS ester-100mg quantity + DOTA-NHS ester330407-500MG500 mg$1,000.00 - DOTA-NHS ester-500mg quantity + DOTA-NHS ester330407-1G1 g$1,500.00 - DOTA-NHS ester-1g quantity + DOTA-NHS ester330407-5G5 g$6,000.00 - DOTA-NHS ester-5g quantity + Add to cart Description CAS #: 170908-81-3 Molecular Formula: C20H31N5O10 Molecular Weight: 501.5