racemate

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racemate

[′ras·ə‚māt]
(organic chemistry)
An equimolar mixture of the two enantiomers (+ and -, or R and S) of a substance; it is optically inactive.
References in periodicals archive ?
Spinal anaesthesia for elective surgery: A comparison of hyperbaric solution of racemic bupivacaine, levobupivacaine and ropivacaine.
Pasteur hypothesized that the optical activity of tartaric acid was related to its asymmetry, which prompted him to think that racemic acid lacked optical activity because its asymmetric crystals were equal but opposite, thereby canceling one another's light-rotating effects.
The inventor and earlier developers of laetrile unambiguously warned the NCI of what it already knew: racemic laetrile was subpotent.
Inhalations of racemic adrenaline worked no better than inhalations of saline in infants admitted to Norwegian hospitals.
Levobupivacaine, the pure S(-)-enantiomer of racemic bupivacaine, has recently been introduced for routine obstetric and nonobstetric spinal and epidural anaesthesia, peripheral nerve blocks, and infiltration analgesia.
India, May 8 -- Thermo Fisher Scientific has launched new Maybridge Chiral Resolution Screening and Purification Kits to give organic chemists simple and rapid access to optically pure chiral compounds from their racemic mixtures.
Nebulized racemic or L-epinephrine reduces severity of symptoms in moderate-to-severe croup (SOR: C, limited-quality disease-oriented evidence).
NatureWorks notes that compared with racemic lactide's melting point of nearly 130[degrees]C, and L- and D-lactide's 97[degrees]C, Ingeo M700's melting point is below 60[degrees]C.
Racemic baclofen (mixture of arbaclofen and esbaclofen) is approved by the FDA to treat spasticity and stiff muscles due to cerebral palsy or other forms of brain or spinal cord injury, but arbaclofen, the more active form of baclofen, is not FDA approved.