Cov ntaub ntawv yooj yim
|
Khoom npe: |
Cytosine |
|
Cov lus txhais lus: |
4 - amino {}} 2 (1-amino-2-olo-2-hydrodomidia; Pyrimidine; Aurora Ka-682; cytosine |
|
CAS: |
71-30-7 |
|
Mf: |
C4H5N3O |
|
Mw: |
111.1 |
|
Einecs: |
200-749-5 |
Cytosine Tshuaj Tshuaj Muaj Zog
|
Melting taw tes |
>300℃(lit.) |
|
Kub taw tes |
208.2 Qib (Kwv yees nko) |
|
ceev |
0,48 g / cm3 |
|
Refronction Index |
1.5000 (kwv yees) |
|
Cia temp. |
2-8 degree |
|
so |
Ntshiab rau me ntsis bazy tsis muaj xim rau tsaus muag daj daws ntawm 50 mg / ml nyob rau hauv 0.5 m hcl. |
|
puab |
Crystalline hmoov |
|
pa kua muag |
4.60, 12.16 (ntawm 25 degree) |
|
xim |
Dawb rau me ntsis daj |
|
Dej solubility |
soluble |
|
Merck |
14,2795 |
|
Khi |
2637 |
|
Stability: |
Ruaj khov. Tsis sib haum nrog cov neeg sawv cev oxidizing muaj zog. |
Cytosine siv thiab synthesis
| Kev piav txog | Cytosine yog pyrimidine; Nrog rau Adenine thiab Guanine lawv tus account rau cov nucleic acid hauv paus. Pyrimidines yog heterocyclic ib {{1} Ringed tebchaw raws cov qauv ntawm pyrimidine. Cytosinelike Adenine thiab Guanine, ua nucleosides thiab nucleotides hauv RNA thiab DNA. Thaum lub hauv paus ua ke nrog ribose, cov ntaub ntawv ribonucleoside; Thiab thaum nws txuas rau deoxyribose, deasroosososide yog tsim. Cov npe ntawm nucleoside yog summarized nyob rau hauv rooj 29.1.Qhov no ua ke nrog phosphoral nucleotides zoo ib yam li adenine cov ntaub ntawv ntawm cov ntaub ntawv ntawm cov ntaub ntawv ntawm cov ntaub ntawv ntawm cov ntaub ntawv ntawm cov ntaub ntawv ntawm cov ntaub ntawv ATP, ADP, thiab AMP. |
|
Tshuaj Tshuaj Muaj Zog |
Dawb khoom |
|
Kev siv |
Dav faib hauv xwm; Ib ce muaj nucleic acids |
Kev Saib Xyuas Cytosine Tshwj Xeeb
|
Kev piav txog |
Dawb lossis yuav luag dawb |
|
Daim qhia npe |
RT ntawm lub ncov siab loj ua txhaum nrog Reye |
|
Poob rau ziab |
Tsawg dua los yog sib npaug rau 0.5% |
|
Residue ntawm ignition |
Tsawg dua los yog sib npaug rau 0.1% |
|
Paj txwv |
Tsawg dua los yog sib npaug rau 0.15% |
|
Lwm tus neeg impurity (loj tshaj) |
Tsawg dua los yog sib npaug rau 0.15% |
|
Tag nrho cov neeg tawg |
Tsawg dua los yog sib npaug rau 0.5% |
|
Assisy (hplc) |
98-102% (ntawm cov dej qhuav) |
Cytosine, a white crystalline powder, slightly soluble in water and ethanol, insoluble in ether, 300℃, 100℃, brown at 300℃, 320℃; Cas No.71 {-}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}} Cytosine yog qhov tseem ceeb hauv nruab nrab hauv cov tshuaj zoo, tshuaj tua kab thiab tshuaj. Ntawm cov tshuaj tua kab, thawj zaug nrhiav cytosine nucleotide peptide peptide hom tshuaj tua kab, nws yog qhov lom zem tshiab, qis qis ntawm qhov dav-speciotic tshuaj tua kab mob. Hauv thaj chaw ntawm cov tshuaj, cytosine yog nucleic acid cov khoom, uas tuaj yeem siv los ua tshuaj tua kab mob, feem ntau yog siv tshuaj tiv thaiv kab mob, tshuaj tiv thaiv kab mob qog ntshav, thiab 5-fluoropytosine.
Cim npe nrov: cytosine cas no.71-30-7, China, manufacturers, suppliers, factory, custom, wholesale
