285 degrees centigrade I presume. And you're replacing the hydrogen of an acid with a hydrocarbon radical.

8 seconds sound clip from the Champagne for Caesar movie soundboard.

You can hear this line at 00:43:33 in the DVD version of the movie.

Quote context

[...]

- You're not thinking of doing anything desperate, are you?

- You do care for me, don't you? How sweet of you, remind me to ask you later what you're doing tonight.

- I'm way ahead of you.

- I was only kidding.

- Oh, the high Lama of lather.

- 285 degrees centigrade I presume. And you're replacing the hydrogen of an acid with a hydrocarbon radical.

- How do you know? Oh, how silly of me to ask you that.

- Well, I can't be expected to do everything.

- Since you know that one gesture of yours, that one gesture shows me that you are a man of tremendous executive ability.

- I've just had the greatest idea since the discovery of fire.

[...]