Cov txheej txheem:
- Dab tsi yog benzoylecgonine thiab ecgonine methyl ester?
- Ib nrab lub neej ntawm ecgonine methyl ester yog dab tsi?
- Yuav tshuaj twg yog benzoylecgonine?
- Ecgonidine methyl ester yog dab tsi?
Video: Dab tsi yog ecgonine methyl ester?
2024 Tus sau: Fiona Howard | [email protected]. Kawg hloov kho: 2024-01-10 06:38
Methylecgonine yog ib qho tseem ceeb tropane alkaloid pom nyob rau hauv coca nplooj. Nws yog metabolite ntawm cocaine, thiab tej zaum yuav siv tau ua ntej rau nws. Nws kuj tshwm sim raws li me me alkaloid hauv cov hauv paus hniav ntawm ntau hom Datura xws li Datura stramonium thiab Datura innoxia.
Dab tsi yog benzoylecgonine thiab ecgonine methyl ester?
Benzoylecgonine (BE) thiab ecgonine methyl ester (EME) yuav tsum yog cov khoom lag luam loj hauv tib neeg cov ntshav BE yog tsim los ntawm cov tshuaj hydrolysis ntawm methyl ester pawg, thiab me me ntawm EME yog tsim enzymati-cally los ntawm hydrolysis ntawm benzoyl ester (2, 4).
Ib nrab lub neej ntawm ecgonine methyl ester yog dab tsi?
Ecgonine methyl ester muaj kev tshem tawm ib nrab ntawm 4.2 hr, piv nrog 5.1 hr rau benzoylecgonine. Cov txiaj ntsig no qhia tau tias ecgonine methyl ester tso nyiaj rau feem ntau ntawm cov khoom lag luam urinary metabolic uas tsis tau pom dua yav dhau los ntawm cocaine.
Yuav tshuaj twg yog benzoylecgonine?
Benzoylecgonine yog qhov sib xyaw ua ke rau nyob rau hauv cov tshuaj yeeb dawb feem ntau urinalysesNws yog cov carboxylic acid ntawm cov yeeb yaj kiab, nws cov methyl ester. Nws yog tsim nyob rau hauv daim siab los ntawm cov metabolism hauv cocaine los ntawm hydrolysis, catalysed los ntawm carboxylesterases, thiab tom qab ntawd tawm hauv cov zis.
Ecgonidine methyl ester yog dab tsi?
Ecgonidine methyl ester mesylate yog a metabolite ntawm Cocaine (COC) Nws yog cov khoom lag luam pyrolysis tsim thaum tawg yeeb dawb, ua rau cov tshuaj no yog biomarker tshwj xeeb rau kev siv. ntawm crack cocaine, as opposed to hmoov cocaine uas tsis tsim methylecgonidine ua metabolite.
Pom zoo:
Dab tsi carboxylic acid yog siv los tsim cov ester no?
Esters yog tsim thaum carboxylic acids rhuab nrog cawv nyob rau hauv muaj cov kua qaub catalyst. Cov catalyst feem ntau yog concentrated sulfuric acidCov roj hydrogen chloride qhuav yog siv rau qee kis, tab sis cov no feem ntau cuam tshuam nrog cov tshuaj tsw qab esters (cov uas muaj lub nplhaib benzene) .
Cholesterol ester yog dab tsi?
Cholesteryl ester, kev noj zaub mov lipid, yog ester ntawm cov roj cholesterol. Cov ester daim ntawv cog lus yog tsim los ntawm pawg carboxylate ntawm fatty acid thiab pawg hydroxyl ntawm cov cholesterol. Cov roj (cholesterol) esters muaj cov dej solubility qis dua vim lawv cov hydrophobicity ntau dua.
Puas yog propanone yog methyl ketone?
Ib ketone yog ib qho chaw uas muaj cov pa roj carbonyl nrog ob pawg hydrocarbon txuas rau nws. Ob qhov yooj yim tshaj plaws yog propanone, ua lag luam nyob rau hauv lub npe acetone, thiab 2-butanone, ua lag luam nyob rau hauv lub npe methyl ethyl ketone los yog MEK.
Dab tsi yog ester txuas?
Daim ntawv cog lus tsim los ntawm ob qho tib si organic molecules yog hu ua kev sib txuas ester. Ib qho yooj yim fatty acid monomer ntawm ib lipid muaj ib tug txawm tus naj npawb ntawm hydrocarbon chains koom nrog ib daim ntawv cog lus. … Qhov sib txuas ester yog tsim los ntawm cov pa oxygen molecules ntawm glycerol thiab hydroxyl molecules ntawm fatty acids .
Dab tsi yog qhov dej dab dej ua dab tsi?
Scout piav qhia tias Maycomb nyob nees nkaum mais hauv av los ntawm Finch's Landing vim Sinkfield, tus tswv tsev noj mov uas muag cov mos txwv rau cov neeg Khab thiab cov neeg nyob, cov neeg soj ntsuam tsis txaus ntseeg los tsim Maycomb lub rooj zaum ntawm tsoomfwv ncig nws tavern .
