Cytosin Produkt Beschreibung

Cytosine Struktur
71-30-7
  • CAS-Nr.71-30-7
  • Bezeichnung:Cytosin
  • Englisch Name:Cytosine
  • Synonyma:Cytosin
    Cyt;Cytosin;Zytosin;CITOSINA;CYTOSINE;NSC 27787;Cytosine,98%;Cytosinimine;Cytosine API;AURORA KA-682
  • CBNumber:CB3746093
  • Summenformel:C4H5N3O
  • Molgewicht:111.1
  • MOL-Datei:71-30-7.mol
Cytosin physikalisch-chemischer Eigenschaften
  • Schmelzpunkt: :>300 °C(lit.)
  • Siedepunkt: :208.2°C (rough estimate)
  • Dichte :0,48 g/cm3
  • Brechungsindex :1.5000 (estimate)
  • storage temp.  :Store at RT.
  • Löslichkeit :Clear to very slightly hazy colorless to faint yellow solution at 50 mg/ml in 0.5 M HCL.
  • Aggregatzustand :Crystalline Powder
  • pka :4.60, 12.16(at 25℃)
  • Farbe :White to slightly yellow
  • Wasserlöslichkeit :soluble
  • Merck  :14,2795
  • BRN  :2637
  • Stabilität: :Stable. Incompatible with strong oxidizing agents.
  • InChIKey :OPTASPLRGRRNAP-UHFFFAOYSA-N
  • CAS Datenbank :71-30-7(CAS DataBase Reference)
  • NIST chemische Informationen :2(1H)-Pyrimidinone, 4-amino-(71-30-7)
  • EPA chemische Informationen :2(1H)-Pyrimidinone, 4-amino-(71-30-7)
Sicherheit
  • Kennzeichnung gefährlicher :Xi,Xn
  • R-Sätze: :36/37/38-20/21/22
  • S-Sätze: :26-36-37/39
  • WGK Germany  :1
  • RTECS-Nr. :UW7350150
  • Hazard Note  :Irritant
  • TSCA  :Yes
  • HS Code  :29335910

Cytosine Chemische Eigenschaften,Einsatz,Produktion Methoden

  • R-Sätze Betriebsanweisung: R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
    R20/21/22:Gesundheitsschädlich beim Einatmen,Verschlucken und Berührung mit der Haut.
  • S-Sätze Betriebsanweisung: S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
    S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
    S37/39:Bei der Arbeit geeignete Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
  • Beschreibung Cytosine is pyrimidine; along with adenine and guanine they account for the fi ve nucleic acid bases. Pyrimidines are heterocyclic single-ringed compounds based on the structure of pyrimidine. Cytosinelike adenine and guanine, form nucleosides and nucleotides in RNA and DNA. When the bases combine with ribose, a ribonucleoside forms; and when it attaches to deoxyribose, a deoxyribosenucleoside is formed. Names of the nucleoside are summarized in Table 29.1.these in turn combine with phosphoryl groups, in a process called phosphorylation, to form their respective nucleotides that form nucleic acids.the nucleotides can be tri, di, and mono phosphate nucleotides similar to the way in which adenine forms ATP, ADP, and AMP.
  • Chemische Eigenschaften White Solid
  • History Cytosine is first isolated by hydrolysis of calf thymus tissue by Albrecht Kossel (1853–1927) and A. Neumann during 1893–1894. Thymine’s structure was published in 1900 and confi rmed over the next several years when it was synthesized by several investigators. In 1903, cytosine was synthesized by Henry Lord Wheeler (1867–1914) and Treat B. Johnson, confirming its structure. Uracil was first isolated in 1900 from yeast nucleic acid found in bovine thymus and herring sperm.the methylation of uracil produces thymine; thymine is also called 5-methyluracil because methylation takes place at the fi fth carbon in uracil to produce thymine.
  • Verwenden Widely distributed in nature; constituent of nucleic acids
  • Definition ChEBI: An aminopyrimidine that is pyrimidin-2-one having the amino group located at position 4.
  • Definition A nitrogenous base found in DNA and RNA. Cytosine has the pyrimidine ring structure.
  • Definition cytosine: A pyrimidine derivative.It is one of the principal componentbases of nucleotides and the nucleicacids DNA and RNA.
  • läuterung methode Cytosine crystallises from H2O as the monohydrate which loses water on heating above 100o. Its solubility in H2O is 0.77%. UV: max 267nm ( 6,100) in H2O pH 8.8 and 275nm ( 10,400) in 0.1N HCl. [Hilbert & Johnson J Am Chem Soc 52 1152 1930, Hilbert et al. J Am Chem Soc 57 552 1935, Beistein 25 III/IV 3654.]
Cytosine Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
Cytosin Anbieter Lieferant Produzent Hersteller Vertrieb Händler.
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71-30-7, Cytosine Verwandte Suche:
  • Cyt
  • Cytosin
  • Cytosinimine
  • 4-amino-2H-pyrimidi-none
  • CYTOSINE, 99+%
  • CytosineForBiochemistry
  • 2(1H)-Pyrimidinone, 4-amino- (9CI)
  • Cytosine,98%
  • 2(1H)-Pyrimidinone, 4-amino-
  • 4-AMINO-2-HYDROXYPYRIMIDINE/CYTOSINE
  • 6-Amino-1H-pyrimidin-2-one
  • 4-Amino-1H-pyrimidin-2-one
  • 6-Amino-2(1H)-pyrimidinone
  • NSC 27787
  • Cytosine (8CI)
  • Zytosin
  • CITOSINA
  • Lamivudine EP Impurity E
  • Cytosine 71-30-7
  • Gemcitabine Hydrochloride EP impurity A -C
  • Gemcitabine Hydrochloride EP impurity A
  • Gemcitabine Impurity 1(Gemcitabine EP Impurity A)
  • Lamivudine Impurity 5(Lamivudine EP Impurity E)
  • 4-AMINO-2(1H)-PYRIMIDINONE
  • 4-AMINO-2(1)-PYRIMIDONE
  • 4-AMINO-2-PYRIMIDINOL
  • 4-AMINO-2-OXO-1,2-DIHYDROPYRIMIDINE
  • 4-AMINO-2-HYDROXYPYRIMIDINE
  • 2-Oxy-4-amino pyrimidine
  • AURORA KA-682
  • CYTOSINE
  • 4-amino-2(1h)-pyrimidinon
  • 4-Amino-2(1H)pyrimidone
  • 4-Amino-2-oxypyrimidine
  • CYTOSINE extrapure
  • 4-Amino-3H-pyrimidin-2-one
  • 4(3H)-Iminopyrimidine-2(1H)-one
  • 4-Amino-1,3-diazabenzene-2-ol
  • 4-Aminopyrimidin-2(3H)-one
  • Cytosine,4-Amino-2-hydroxypyrimidine
  • Cytosine (100 mg)
  • 4-aMino-1,2-dihydropyriMidin-2-one
  • Cytosine, 99+% 5GR
  • 4-AMinopyriMidin-2(1H)-one
  • Cytosine API
  • 4-Amino-2-oxo-1,2-dihydropyrimidine 4-Amino-2(1H)-pyrimidone
  • 6-AMinopyriMidin-2(1H)-one
  • Cytosine/4-AMino-2(1H)-pyriMidinone
  • 4-Aminopyrimidin-2(1H)-one, 4-Amino-1,2-dihydro-2-oxopyrimidine
  • Cytosine Vetec(TM) reagent grade, 99%
  • 71-30-7
  • 200-749-5
  • C4H5N3O
  • C4H5N3OH2O
  • DNA / RNA Synthesis
  • Bases (DNA / RNA)
  • Biochemicals and Reagents
  • Building Blocks