Lawn weed killers

I have a bottle of "bayer" weed killer....by mistake. I had one of these bayer weed killers and found it to be a whole lot less,useful on weeds... than the "ortho type" killer. Who makes ortho? i can't raise just the company address. online. That And........ i have a bottle of ortho klor 74 chriaddane this is the spelling abit off.any help appreciated bob s

ps Whats your opinion the"bayer weed killer"????