• 4-A. "Methamphetamine precursor drug" means any drug or product possessed by a person that contains in the aggregate a quantity of more than 9 grams of ephedrine, pseudoephedrine or phenylpropanolamine or their salts, isomers or salts of isomers, either alone or in combination with other ingredients, in dry or solid nonliquid form. (mainelegislature.org)
  • B. This term does not include, unless specifically designated or listed in Schedule W, X, Y or Z, the dextrorotatory isomer or 3-methoxy-n-methyl-morphinan and its salts, dextromethorphan, but does include its racemic and levorotatory forms. (mainelegislature.org)
  • The Chemical Abstracts Registry numbers for salts, optical isomers, or isotope-labeled versions of the concept followed by the relationship of this RR to the RN (in parentheses. (nih.gov)
  • In a recent emergency rule, the Attorney General of Florida is broadening Florida s anti-GHB law to include any compound, derivative or preparation of GHB including any isomers, esters, ethers, or salts. (ceri.com)
  • 1. 2-(methylamino)-2-phenyl-cyclohexanone (other name: Deschloroketamine), its optical, position, and geometric isomers, salts, and salts of isomers whenever the existence of such salts, isomers, and salts of isomers is possible within the specific chemical designation. (virginia.gov)
  • 2. 2-methyl-1-(4-(methylthio)phenyl)-2-morpholinopropiophenone (other name: MMMP), its optical, position, and geometric isomers, salts, and salts of isomers whenever the existence of such salts, isomers, and salts of isomers is possible within the specific chemical designation. (virginia.gov)
  • 3. Alpha-ethylaminohexanophenone (other name: N-ethylhexedrone), its optical, position, and geometric isomers, salts, and salts of isomers whenever the existence of such salts, isomers, and salts of isomers is possible within the specific chemical designation. (virginia.gov)
  • 5. 4-fluoro-alpha-pyrrolidinohexiophenone (other name: 4-fluoro-alpha-PHP), its optical, position, and geometric isomers, salts, and salts of isomers whenever the existence of such salts, isomers, and salts of isomers is possible within the specific chemical designation. (virginia.gov)
  • Methyl 2-(4-fluorophenyl)-2-(2-piperidinyl)acetate (other name: 4-fluoromethylphenidate), including its salts, isomers, and salts of isomers. (virginia.gov)
  • Isopropyl-2-phenyl-2-(2-piperidinyl)acetate (other name: Isopropylphenidate), including its salts, isomers, and salts of isomers. (virginia.gov)
  • a. 2-(ethylamino)-2-phenyl-cyclohexanone (other name: deschloro-N-ethyl-ketamine), its optical, position, and geometric isomers, salts, and salts of isomers, whenever the existence of such salts, isomers, and salts of isomers is possible within the specific chemical designation. (virginia.gov)
  • Beta-keto-4-bromo-2,5-dimethoxyphenethylamine (other name: bk-2C-B), its optical, position, and geometric isomers, salts, and salts of isomers, whenever the existence of such salts, isomers, and salts of isomers is possible within the specific chemical designation. (virginia.gov)
  • Related Number of substances, that is, the registration number of salts, optical isomers or versions labeled with the isotope of the substance. (bvsalud.org)
  • Isomers, either esters of known active ingredients, or salts of known active ingredients (including (including salts containing hydrogen bonds or coordination bonds), or changing the acid group of known salt active ingredients, bases or metal elements, or form other non-covalent derivatives (such as complexes, chelates compounds or clathrates) and have obvious clinical advantages. (nih.gov)
  • Rasagiline is the R -isomer of the chiral parent compound N -propargyl-1-aminoindan, a nonamphetamine, secondary cyclic benzylamine propargylamine pharmacophore. (medscape.com)
  • K. Si-Ahmed, F. Ta-zerouti, A. Y. Badjah-Hadj-Ahmed, Z. Aturki and G. D'Orazio, "Optical Isomer Separation of Flavanones and Flavanone Gly-cosides by Nano-Liquid Chromatography Using a Phenyl-Carbamate-Propyl-β-Cyclodextrin Chiral Stationary Phase," Journal of Chromatography A, Vol. 1217, No. 7, 2010, pp. 1175-1182. (scirp.org)
  • Lactic acid is chiral, consisting of two optical isomers. (openfoodfacts.org)
  • Lactic acid is a chiral molecule and has two optical isomers. (prathista.us)
  • Isomers that differ only in the way that atoms are oriented in space, consist of geometrical and optical isomers. (allchemicals.info)
  • 1-Propanol and 2-propanol are examples of positional isomers, which differ by the position at which certain features, such as double bonds or functional groups, occur on a "parent" molecule (propane, in that case). (wikipedia.org)
  • The Georgia law specifies that positional isomers of GHB are also Schedule I drugs. (ceri.com)
  • In a professional, technical, scientific context, butyrolactone is not an optical, positional or geometric isomer of GHB. (ceri.com)
  • Label and measure optical isomers of amino acids by reverse-phase chromatography (HPLC) with this amine-reactive, colored (Amax 340nm) compound. (fishersci.com)
  • In the following procedure, you will investigate the differences between different optical isomers of sugars, amino acids, and natural products using polarimetry. (vernier.com)
  • 1958 ) The use of amino acid oxidases for the small-scale preparation of the optical isomers of amino acids Journal of the American Chemical Society . (academictree.org)
  • Since only cis isomer is optically active, it shows optical isomerism. (esaral.com)
  • Isomerism refers to the existence or possibility of isomers. (wikipedia.org)
  • Hydrolyzed by alkali Optical Vamidothion consists of a mixture of optically isomerism: active isomers. (inchem.org)
  • Pyrethroids that contain a cyano substituent at the alcohol moiety (Type II pyrethroids) demonstrate differing toxicity based upon the optical isomerism of the alpha carbon. (cdc.gov)
  • Two chemicals might be the same constitutional isomer, but upon deeper analysis be stereoisomers of each other. (wikipedia.org)
  • Time S-+ isomers of both DOM and DOB are more potent than their corresponding R-- isomers in activation 5-HT receptors. (erowid.org)
  • Of the pairs of optical isomers, the l -isomers of cyclazocine and pentazocine were more potent than their d -isomers. (aspetjournals.org)
  • Among the pairs of geometrical isomers, the cis -isomer of cyclazocine was more potent than the trans -isomer, whereas the trans -isomer of pentazocine was more potent than the cis -isomer. (aspetjournals.org)
  • Both the cis and trans isomers show insecticidal activity, but have differing mammalian toxicities, with the cis isomers being more potent (Ray 1991). (cdc.gov)
  • For example, there are three distinct compounds with the molecular formula C 3 H 8 O {\displaystyle {\ce {C3H8O}}} : The first two isomers shown of C 3 H 8 O {\displaystyle {\ce {C3H8O}}} are propanols, that is, alcohols derived from propane. (wikipedia.org)
  • thus, they are not different compounds and not true isomers. (readchemistry.com)
  • Structural isomers have the same number of atoms of each element (hence the same molecular formula), but the atoms are connected in distinct ways. (wikipedia.org)
  • Again, note that there is only one structural isomer with a triple bond, because the other possible placement of that bond is just drawing the three carbons in a different order. (wikipedia.org)
  • The structure of some molecules is sometimes described as a resonance between several apparently different structural isomers. (wikipedia.org)
  • structural isomers (see constitutional isomers) Isomers that differ in the order in which their atoms are bonded together. (readchemistry.com)
  • 30. Effect of optical isomers of gossypol on mammalian spermatozoa: an in vitro study. (nih.gov)
  • The values of all E ii and E ij transitions allow us to analyse the detailed band structures of the SWCNTs with more precision than can be implemented by other optical measurements. (nature.com)
  • conformational isomers) Structures that differ only by rotations about single bonds. (readchemistry.com)
  • So, by fixing the position of 2 ligands we get 2 geometrical isomers and by changing the position of fixed isomer we get one more geometrical isomer. (philoid.com)
  • Isomers involving exchanges of ligands between complex cation and complex anion of the same compound. (allchemicals.info)
  • configurational isomers) Isomers whose atoms are bonded together in the same order but differ in how the atoms are oriented in space. (readchemistry.com)
  • In chemistry, isomers are molecules or polyatomic ions with identical molecular formula - that is, same number of atoms of each element - but distinct arrangements of atoms in space. (wikipedia.org)
  • A pair of nonsuperimposable mirror-image molecules: mirror-image isomers. (readchemistry.com)
  • I would be happy to provide you with an affadavit attesting to the fact that 1) butyrolactone is not GHB, 2) butyrolactone is not a compound, mixture or preparation of GHB, and 3) butyrolactone is not any kind of isomer of GHB. (ceri.com)
  • With the exception of deltamethrin, pyrethroids are a complex mixture of isomers rather than one single pure compound. (cdc.gov)
  • HHC is probably illegal in Colorado because the state specifically prohibits "chemically modified" THC isomers, such as hemp-derived delta 8 and 10. (cfah.org)
  • Unfortunately, this state prohibits hemp-derived THC and all THC isomers, categorizing them as Schedule III on their list of controlled substances. (cfah.org)
  • THC products and isomers are prohibited under Title 16 of the Delaware Uniform Controlled Substances Act. (cfah.org)
  • The geometrical isomers were 89 % all-E, 8 % 13-Z and 3 % 9-Z. The incorporation of the oily astaxanthin preparation into trout feed was performed to deliver 7 mg/kg astaxanthin in the final feed formulation for the first 3.5 weeks and 72 mg/kg for the final 3.5 weeks of the feeding trial. (springer.com)
  • This makes it a very important instrument in organic chemistry because the optical rotation of a molecule can dictate what reactions it will undergo. (vernier.com)
  • Englert G, Vecchi M (1980) Trans/cis isomerization of astaxanthin diacetate/isolation by HPLC and identification by 1 H-NMR spectroscopy of three mono-cis-and six di-cis-isomers. (springer.com)
  • where α is the observed optical rotation in units of degrees, [α] is the specific rotation in units of degrees (the formal unit for specific rotation is degrees dm -1 mL g -1 , but scientific literature uses just degrees), ℓ is the length of the cell in units of dm, and c is the sample concentration in units of grams per milliliter. (vernier.com)
  • Therefore, further studies were conducted to characterize and compare the activity of the R and S optical isomers of N -propargyl-1-aminoindan. (medscape.com)
  • As stated above, there are concerns about the lack of activity or potentially adverse effects of optical and geometric isomers that are not normally present in the food supply. (nih.gov)
  • The purpose of this report is not to explain or theorize on the persistence of activity following the N-methylation of MDA or on the unexpected reversal of activity assignment ot the optical isomers. (erowid.org)
  • other citers were preoccupied with my advocacy of optical activity (cf the Pasteur probe) as a signature. (nih.gov)
  • Timolol maleate possesses an asymmetric carbon atom in its structure and is provided as the levo-isomer. (nih.gov)
  • 38. Antifertility and ultrastructural effects of optical isomers of gossypol administered intratesticularly in rats. (nih.gov)
  • Finally, we demonstrate that an extended empirical formula can estimate E ij optical transition energies for any ( n , m ) species. (nature.com)
  • they are fictions devised as a way to describe (by their "averaging" or "resonance") the actual delocalized bonding of o-xylene, which is the single isomer of C 8 H 10 {\displaystyle {\ce {C8H10}}} with a benzene core and two methyl groups in adjacent positions. (wikipedia.org)
  • An optical isomer of quinine, extracted from the bark of the CHINCHONA tree and similar plant species. (nih.gov)
  • Isomers do not necessarily share similar chemical or physical properties. (wikipedia.org)
  • Based on the results of the gas chromatography-mass spectrometry analysis of two of the charcoal tube field samples, isopropanol, toluene, trimethyl benzene isomers, and total hydrocarbons were selected for quantitation. (cdc.gov)
  • The state defines "tetrahydrocannabinol" to include delta 8, 9, and 10 and any isomers in the definition. (cfah.org)