Home / Products / Levothyroxine / Levothyroxine N-Formyl-T4 Impurity (INR 4900/- 50 mg, 2 weeks) Levothyroxine N-Formyl-T4 Impurity (INR 4900/- 50 mg, 2 weeks) Catalogue No: ACT-L002013 Common name: N-Formyl-T4 CAS: 671235-41-9 Mol. Weight: 804.9 Rel. CAS No Shipping Condition Ambient Get Quote Product Overview Chemical Name: N-Formyl-O-(4-hydroxy-3,5-diiodophenyl)-3,5-diiodo-l-tyrosine Shipping Temperature: Ambient HSN Code: 38229010 Country of Origin: India Smiles: OC1=C(I)C=C(OC2=C(I)C=C(C[C@H](NC=O)C(O)=O)C=C2I)C=C1I