Here's what SWIM did:
STB, pulled with xylene, FASA.
SWIM ended up with a yellow powder. Got a 4% yield from Mimosa H, which seems too high to SWIM, even with Fumarate.
Washed 3x with xylene, then 3x with acentone, then dried. Still yellow. Recrystallized in acetone/water, still yellow. Recrystallized in IPA, still yellow.
Could this be other alkaloids making it yellow since SWIM pulled with xylene?
The way SWIM understands it is that since he washed with both a NPS and a PS, and recrystallized, there should definitely be no plant material in there.
120mgs were weighed out for insullfation. Only ~30mgs taken in, burned too bad, put the rest back. Seemed just off baseline for a while.
Here's a pic of the final product. As you can see its a very pale yellow.
Thanks for any advice.
STB, pulled with xylene, FASA.
SWIM ended up with a yellow powder. Got a 4% yield from Mimosa H, which seems too high to SWIM, even with Fumarate.
Washed 3x with xylene, then 3x with acentone, then dried. Still yellow. Recrystallized in acetone/water, still yellow. Recrystallized in IPA, still yellow.
Could this be other alkaloids making it yellow since SWIM pulled with xylene?
The way SWIM understands it is that since he washed with both a NPS and a PS, and recrystallized, there should definitely be no plant material in there.
120mgs were weighed out for insullfation. Only ~30mgs taken in, burned too bad, put the rest back. Seemed just off baseline for a while.
Here's a pic of the final product. As you can see its a very pale yellow.
Thanks for any advice.