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racemic    
a. 外消旋的

外消旋的

Racemic \Ra*ce"mic\ (r[.a]*s[=e]"m[i^]k), a. [Cf. F.
rac['e]mique. See {Raceme}.] (Chem.)
Pertaining to, or designating, an acid found in many kinds of
grapes. It is also obtained from tartaric acid, with which it
is isomeric, and from sugar, gum, etc., by oxidation. It is a
sour white crystalline substance, consisting of a combination
of dextrorotatory and levorotatory tartaric acids. --Gregory.
[1913 Webster]

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  • Stimulants Methamphetamine - D-Meth vs Racemic
    Lately it’s possible some super labs are producing racemic but you can bet a large portion of the market is still high purity d-meth Amphetamine is a different beast and more likely to be racemic because it’s more often made from p2p Ketamine varies, but again there are chemists which produce just the S-isomer -GC
  • Stimulants The Complete Lay Guide To Dextro- Levo- Meth(L-,D . . .
    Racemic amphetamine is a 1:1 mixture of dextroamphetamine and levoamphetamine The combination provides a balanced effect, with dextroamphetamine contributing more to CNS stimulation and levoamphetamine affecting peripheral systems
  • Meth Youve never had racemic methamphetamine - bluelight. org
    Racemic meth and d-meth were reported by subjects to feel EXACTLY THE SAME The pleasurable effects, residual effects, peripheral effects and duration all were THE SAME Blood pressure and heart rate readings were IDENTICAL TO D-METH Essentially someone given a racemic product would be getting the exact same results as a pure d-meth product
  • Stimulants - Is mexican meth mostly racemic? | Bluelight. org
    This "racemic Mexican meth" misinformation has been debunked ad nauseum on this forum over the last couple years See this paper for a full discussion Essentially, it is being produced from P2P but is then being resolved using tartaric acid
  • Stimulants - Pharmaceutical Racemic Amphetamine Thread (1:1 d,l; Evekeo . . .
    Thread for compiling information and experience with pharmaceutical 1:1 dl-amphetamine, known as amphetamine sulphate, and commonly referred to as racemic amphetamine As far as the United States is concerned, it is now "back" on the market with the brand name Evekeo
  • Dissociatives [Ketamine Subthread] Isomers: R and S Ketamine
    The frequency of dreams was the same after both drugs No unpleasant dreams were reported after S-(+)-ketamine, but one of the volunteers who received racemic ketamine had uncomfortable dreams It seems that (+) ketamine has a distinct positive vibe to it, unlike racemic ketamine which is more neutral (or even negative) in its psychological
  • Ketamine Liquid Vial and Long-Term Storage and if it can last a Decade . . .
    Re: Racemic vs S-isomer ketamine, the S-ketamine (aka "esketamine") is generally considered the eutomer, i e the isomer most of the (desirable) pharmacological activity resides in Since R-ketamine ("arketamine") is only a very weak NMDA antagonist, esketamine can be assumed to be almost twice as active as a dissociative
  • Stimulants - Racemic meth - Bluelight. org
    unquestionly tho pure d-meth is stronger but not pound for pound exactly It lasts much longer, releases more serotonin I think racemic meth is even still present in the american markets, depending on what chems the labs had in mexico at the time there's been a few bags I've touched that were so bad they seemed like they would have been racemic
  • Two distinct types of Ketamine effects? | Bluelight. org
    I find racemic more sedating and foggy while s-isomer feels more dreamy psychedelic with a stronger mind fuck and less sedation It's racemic ketamine that usually used in human anesthesia due to it having less psychedelic effects
  • Different types of Ketamine - not s or r :) - Bluelight. org
    You can get s+ rock, r- rock or racemic rock S+ shard, r- shard or racemic shard A a for the fine grain or 'sugar' type k S+ is a more psychedelic, head high Walking on the moon feeling, almost like a wonky upper It is the most saught after type of k, the most potent and the most expensive R- is more mongy, sit you on your ass body load





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