Dow Chemical, which manufactures raw materials, is a holding in Cramer's charitable trust portfolio,Action Alerts PLUS.
Shares of the company have dropped about 25% since the deal was announced on December 11.
"I am urging people right now to say, 'Wait a second,'" Cramer said. "Take a longer term view."
Earlier this week, DuPont announced that it will cut $730 million in costs. The company reported better-than-expected 2015 fourth quarter earnings results.
Dow Chemical stock is down by 1.40% to $40.97 in early afternoon trading on Friday.
Separately, recently, TheStreet Ratings objectively rated this stock according to its "risk-adjusted" total return prospect over a 12-month investment horizon. Not based on the news in any given day, the rating may differ from Jim Cramer's view or that of this articles's author.
TheStreet Ratings rates this stock as a "buy" with a ratings score of B. The company's strengths can be seen in multiple areas, such as its compelling growth in net income, largely solid financial position with reasonable debt levels by most measures, attractive valuation levels, good cash flow from operations and impressive record of earnings per share growth. We feel its strengths outweigh the fact that the company has had lackluster performance in the stock itself.
You can view the full analysis from the report here: DOW