Stepan (NYSE:SCL - Get Free Report) posted its quarterly earnings results on Tuesday. The basic materials company reported $0.45 EPS for the quarter, topping analysts' consensus estimates of $0.44 by $0.01. Stepan had a return on equity of 3.38% and a net margin of 2.01%.The company had revenue of $604.51 million for the quarter, compared to analysts' expectations of $612.95 million. During the same period in the previous year, the firm earned $…