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CAS Number: 171596-29-5 Molecular formula: C22H19N3O4 Molecular weight: 389.4 EINECS No.: 687-782-2 If you have any question ,please feel free contact me. WhatsApp/Tel:+86 15373037585 Wickr: Rebecca4131 Email: bangdeya4@bangdeya.com web : www.bangdeya.com We can provide you with high quality product, we have the most advantageous price and the fastest delivery time.