(6alpha)-3-Methoxyestra-1,3,5(10)-trien-6-ol hydrogen sulfate compd. with pyridine (1:1) 134223-97-5 Estra-1,3,5(10)-trien-6-ol, 3-methoxy-, hydrogen sulfate, (6alpha)-, compd. with pyridine (1:1) PMTS Pyridinium 3-methoxyestra-1,3,5(10)-trien-6-yl sulfate