Caffeine = black/purple?

[stardragon]

From the first (latest) page of results at ecstasydata...
Clover
Oct 17
2002
Caffeine : 1
GC/MS
Seattle, WA
Black / Purple (slow)
Now that's interesting. Is it maybe from coming in contact with actual MDxx pills? is it possible that caffeine alone could give this reaction (sounds wrong to me, but I'm no chemist)? Obviously one is looking for a fairly swift change to black/purple, and very slow reactions aren't considered favourable, but still...
[ 13 November 2002: Message edited by: stardragon ]

 

[johnboy]

We've been thru this a number of times. Why did this pill have this reaction? Could have been any number of reasons but most probably the one you said: it had come into contact with MDxx pills, and enough had rubbed off on it to muddy the reaction. Remeber it takes the tiniest amount of MDxx to givea reaction.
But the fact that it was sent in for testing shows that whoever did the original spot test was suspicious enough of the reaction.

 

[stardragon]

Not necessarily - I've sent in pills that gave a good test just so that I could be certain of their content. I'm paranoid that way.
What I was asking was had anyone else ever seen caffeine turn blue/purple. I guess I should go buy some no-doz and test it myself if I want to know