Uracil CAS 66-22-8

Khoom Qhia:

Cov Khoom Npe: Uracil CAS TSIS: 66-22-8

Txhais:

2,4 (1H, 3H) -Pyrimidinedione;

2,4-dioxo-3,4-dihydropyrimidin;

2,4-Dihydroxypyrimidine;

Tshuaj& Cov Khoom Uas Lub Cev:

Zog: Off-dawb crystalline hmoov

Ntsuas: ≥99.0%

Qhov ceev: 1.321 g / cm3

Melting Point: 335 ℃

Flash Point: 220.2 ℃

Performance Index Txaus Siab: 1.501

Dej Solubility: Soluble hauv dej kub

Qhov Ruaj: Ruaj. Tsis sib haum nrog cov neeg muaj zog oxidizing.

Cia Kev Mob: Khaws kaw kom nruj. Txav deb ntawm tshav kub, txim taws, thiab qhib nplaim taws.

Cov Ntaub Ntawv Kev Nyab Xeeb:

RTECS: YQ 8650000

Txoj Cai Kev Nyab Xeeb: Xi

Cov Chav Kawm Siab: 4.2

HS Code: 2933990090

Cov Lus Qhia Kev Nyab Xeeb: S24 / 25

WGK Lub Teb Chaws Yelemees: 2

Uracil (U) yog ib ntawm plaub lub nucleobases hauv nucleic acid ntawm RNA uas tau sawv cev los ntawm cov tsiaj ntawv A, G, C thiab U. Lwm tus yog adenine (A), cytosine (C), thiab guanine (G). Hauv RNA, uracil khi rau adenine ntawm ob daim phiaj hlau hydrogen. Hauv DNA, qhov uracil nucleobase hloov los ntawm thymine. Uracil yog daim ntawv demethylated ntawm thymine.

Uracil yog ib qho muaj tshwm sim thiab ib txwm tshwm sim pyrimidine derivative. Lub npe" uracil" tau tsim hauv xyoo 1885 los ntawm German chemist Robert Behrend, uas tau sim coj los ua ke ntawm cov tshuaj uric acid. Thaum xub thawj pom nyob rau xyoo 1900 los ntawm Alberto Ascoli, nws raug cais los ntawm hydrolysis ntawm poov xab nuclein; nws kuj tau pom muaj hauv bovine thymus thiab spleen, herring phev, thiab cov noob nplej. Nws yog lub chaw npaj, cov khoom tsis muaj ntxhiab uas muaj peev xwm nqus tau lub teeb.

Raws li 12C / 13C isotopic sib piv ntawm cov organic sib txuas pom hauv Murchison meteorite, nws ntseeg tau tias uracil, xanthine thiab ntsig txog cov molecules kuj tseem tuaj yeem tsim tau extraterrestrially.

Xyoo 2012, kev tshuaj xyuas cov ntaub ntawv los ntawm Cassini lub hom phiaj tso rau hauv Saturn system pom tias Titan' s saum npoo muaj nyob nrog suav nrog uracil.

Yog tias koj txaus siab rau peb cov khoom lossis muaj lus nug, thov koj xav tiv tauj peb!

Cov khoom hauv qab patent yog muab rau R& D lub hom phiaj nkaus xwb. Txawm li cas los xij, lub luag haujlwm kawg tau txiav txim siab nrog cov neeg yuav khoom.

Cim npe nrov: uracil cas 66-22-8, tuam ntxhab, lwm tus neeg, Hoobkas, yuav, hauv Tshuag

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