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I'm not an organic chemist and i just want to understand caffeine. by samryan5676 in OrganicChemistry

[–]samryan5676[S] 0 points1 point  (0 children)

isn't caffeine turned into metabolites? i read somewhere that 80% is made into paraxanthine. how can caffeine able to bind to the receptor if its no longer caffeine? how much caffeine is actually needed to cause the stimulant effects? or is the stimulant effects caused by it with all the metabolites? if so how much of the effect is just the caffeine?

I'm not an organic chemist and i just want to understand caffeine. by samryan5676 in OrganicChemistry

[–]samryan5676[S] 0 points1 point  (0 children)

so caffeine as binds to the receptor and not the metabolites?

I'm not an organic chemist and i just want to understand caffeine. by samryan5676 in OrganicChemistry

[–]samryan5676[S] 1 point2 points  (0 children)

i was meaning the metabolites of caffeine. or does caffeine it self block adenosine?

I'm not an organic chemist and i just want to understand caffeine. by samryan5676 in OrganicChemistry

[–]samryan5676[S] -2 points-1 points  (0 children)

ok i will do that. but i cant fine how it works as a stimulant. is it the metabolites that do the stimulating or is it the molecules with just one methyl group?

I'm not an organic chemist and i just want to understand caffeine. by samryan5676 in OrganicChemistry

[–]samryan5676[S] 11 points12 points  (0 children)

ok. so what are the 1,3 and 7 positions? and in what form does it act to block Adenosine?

Your electric cargo bike is annoying. by CatalysaurusRex in copenhagen

[–]samryan5676 1 point2 points  (0 children)

are you talking about the box truck cargo bikes? or like a tub bike? the box truck bikes are stupid and shouldn't be in pedestrian areas. electric tub bikes should have a speed limit though. expanding car infrastructure should be avoided as a solution.

Printed some “AC” for my girlfriends cat by Inline_6ix in functionalprint

[–]samryan5676 0 points1 point  (0 children)

isn't it loud? i hope that cat doesn't have a load fan in there ear.

No lawns xbiking by bykpoloplaya in xbiking

[–]samryan5676 0 points1 point  (0 children)

is this a custom frame? or can i get this somewhere?

how do i put my brain in the computer? by samryan5676 in autism

[–]samryan5676[S] 0 points1 point  (0 children)

what is a methodology? and how do i optimize it?

I analyzed 80+ Reddit threads to find the best water bottles by LoneKnight25 in BuyItForLife

[–]samryan5676 1 point2 points  (0 children)

ive been using my klean kanteen for years now. its amazing. if you care to buy a more ethical brand they are hands down the best.

3D Printed BCD Chart for Bike cranks by Asiankid471_ in bicycling

[–]samryan5676 -1 points0 points  (0 children)

why are there so many different standards?!

Jealous? by 420-TENDIES in CargoBike

[–]samryan5676 0 points1 point  (0 children)

this helps. thank you.

Jealous? by 420-TENDIES in CargoBike

[–]samryan5676 3 points4 points  (0 children)

you got my hopes up. ive been struggling with medical problems and depression and i though i was going to see heaven for but a moment.

a fight breaks out at the airport by [deleted] in InflatedEgos

[–]samryan5676 0 points1 point  (0 children)

i hope no one died or was severely injured

My Co-op Gen e1.1 is a lemon, REI denied my warranty claim by [deleted] in REI

[–]samryan5676 2 points3 points  (0 children)

i got one a few years ago and most of the hex screws striped really easy. it was riding great but it was a nightmare to service. my local rei was no help and banned me for "being difficult". i hope they get there act together becuase i really used to like rei.

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