The German pharmaceutical company Bayer has been in the process of buying the company for more than two years, and the $66 billion deal is finally closing this week. On Monday, Bayer (BAYRY) announced in a statement that it had received all the necessary regulatory approvals to buy Monsanto, and that they would retire the 117-year-old name of “almost surely the most vilified company on the planet.”

“Bayer will remain the company name. Monsanto will no longer be a company name. The acquired products will retain their brand names and become part of the Bayer portfolio,” the statement said.

Acquirers don’t typically change the names of the companies they’re buying when it’s as well-recognized to its customers as Monsanto is, but in this case, it may be the best option. Here’s why.

Agent Orange, DDT, GMOs

As recognizable as the name “Monsanto” is to its customers, it’s almost better known among its detractors. Monsanto was established in 1901 as a chemical business, and has found itself at the center of some of the biggest controversies of the 20th and 21st centuries. The chemical Agent Orange, which was weaponized and demonized during the Vietnam era, was produced under the name Monsanto. The company was also among those that produced DDT, a now-banned pesticide. In recent years, the name has become virtually synonymous with Genetically Modified Organisms (GMOs) and the target of much of the protest against them.

For all the ire Monsanto gets from its detractors, its loyal customers aren’t always happy either. In 2008 when the company pledged to become carbon-neutral by 2021, some of the company’s customers said it was giving in to the government and activists in acknowledging that climate change is even partly man-made.

But is erasing ‘Monsanto’ enough?

From a PR perspective, getting rid of “Monsanto” will make things much simpler. But it’s possible that Bayer hasn’t gone far enough by putting Monsanto to bed. Although Monsanto will be a thing of the past, some of its brand names, which will become part of the Bayer portfolio, draw almost as much controversy as the parent company. For instance, the pesticide Roundup is probably the best-known pesticide among non-specialist audiences. In 2017, California listed its active ingredient, glyphosate, as a chemical known to cause cancer. Later that year the EU parliament voted in a non-binding resolution to ban the pesticide by 2022, though the chemical was later given a new five-year license.