I was recently alerted to yet another Detective Conan chloroforming! This one was kind of short. It's from episode 452. The total chloroforming count is 5 for Detective Conan. If you include two episodes where there was a still shot of a woman getting chloroformed, the total is 7.
But hey, what do you expect from a kid's detective show that is nearing 500 episodes? Seriously, haven't the writers run out of mystery ideas yet? They need to make an episode where all the female characters are just chloroformed for the hell of it. That would be hilarious.
I added one more clip from Hunter X Hunter.