Respiratory System

Benzonatate

C30H53NO11 Molecular weight: 603,75 Code : 10650 Description : Pale yellow viscous liquid. Refractive Index : 1,509 – 1,511 Sulphated ashes : Max. 0.1 % Assay: 95,0 – 105,0 % Impurities (HPLC) : p-N-Butylaminobenzoic acid : Max. 0.1% p-N-Butylaminobenzoic acid polyethylenglycol ester (imp. at RRT 0.6 – 0.7) : Max 0.8 % p-N-Butylaminobenzoic acid methyl ester : Max. 0.6 %