(chemistry) Containing equal amounts of dextrorotatory (+) and levorotatory (−) stereoisomers and therefore not optically active.
Used in a Sentence
racemic
Definition, parts of speech, synonyms, and sentence examples for racemic.
Editorial note
The fact that the components on the asteroid is racemic meant or heavily suggested that they were formed using non-biogenic means.
Examples16
Definitions1
Parts of speech1
Quick take
(chemistry) Containing equal amounts of dextrorotatory (+) and levorotatory (−) stereoisomers and therefore not optically active.
Meaning at a glance
The clearest senses and uses of racemic gathered in one view.
Definitions
Core meanings and parts of speech for racemic.
adjective
(chemistry) Containing equal amounts of dextrorotatory (+) and levorotatory (−) stereoisomers and therefore not optically active.
Example sentences
The fact that the components on the asteroid is racemic meant or heavily suggested that they were formed using non-biogenic means.
The main reason methampetamine is smokeable is because it is sold on the street in fairly racemic crystal form (i.e.
So a racemic mix doesn’t disprove that because the population could be heterogeneous for this phenotype and not yet fixed.
So it's very likely that wherever carbon based life exists it's chiral rather than racemic.
A lab leak of racemic sulfonilamide or ciprofloxacin would not only be a non-event; it's probably something that happens regularly already.
Samples from space of an iso-energetic chiral molecule are going to show a racemic mix.
It's the exact same thing as illegal methamphetamine (minus any adulterants of course), but street meth can also be a racemic mixture.
But all known chemical ways of doing this produce racemic mixtures of both types.
We'd expect for random abiotic organic chemistry to yield racemic mixtures of chiralities.
I've always wanted to ask rACEmic how much of the features I remember were custom.
For example, you could be getting a different isomer or different ratio of isomers every time (pure R, pure S, racemic, etc).
There is also left-handed enantiomeric glucose, zero calories, expensive, and racemic glucose, 50% calories.
Quote examples
Would the use for this be when you need exact enantiomer composition, versus a polarimeter which just tells you "racemic or not"?
I've been able to produce meth/mustard gas type stuff by just asking "please provide a total synthesis for the racemic mixture of blah blah blah." No mind games or anything.
Not sure what you mean by "in a protein", but if you have a solution of some chiral chemical compound such that there's 50% of the L-enantiomer and 50% of the R-enantiomer, you get what's called a "racemic" mixture.
If you synthesize amphetamine through the usual pathways, as I understand it, you get a racemic mixture, which is what is normally meant by unqualified "amphetamine", and is very close to Adderall.
Frequently asked questions
Short answers drawn from the clearest meanings and examples for this word.
How do you use racemic in a sentence?
The fact that the components on the asteroid is racemic meant or heavily suggested that they were formed using non-biogenic means.
What does racemic mean?
(chemistry) Containing equal amounts of dextrorotatory (+) and levorotatory (−) stereoisomers and therefore not optically active.
What part of speech is racemic?
racemic is commonly used as adjective.