guaifenesin and its Impurities
Guaifenesin is used to try to help with coughing up thick mucous and is sometimes combined with dextromethorphan,an antitussive. It is available as a generic medication and over the counter. Reference standards of Guaifenesin API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.


(4bS,8aR,9R,10S)-3-Methoxy-11-methyl-6,7,8,8a,9,10-hexahydro-5H-9,4b-(epiminoethano)phenanthren-10-ol
(4bS,8aR,9R,10S)-3-Methoxy-11-methyl-6,7,8,8a,9,10-hexahydro-5H-9,4b-(epiminoethano)phenanthren-10-ol
Catalogue No.:PA 07 0171001
CAS :
2382909-24-0
Molecular Formula : C18H25NO2
Molecular Weight : 287.4