ChemicalBook > CAS DataBase List > Cytosine

Cytosine

Cytosine Structure
Cytosine
  • CAS No.71-30-7
  • Chemical Name:Cytosine
  • CBNumber:CB3746093
  • Molecular Formula:C4H5N3O
  • Formula Weight:111.1
  • MOL File:71-30-7.mol
Cytosine Property
  • Melting point: :>300 °C (lit.)
  • Boiling point: :208.2°C (rough estimate)
  • Density  :0,48 g/cm3
  • refractive index  :1.5000 (estimate)
  • storage temp.  :2-8°C
  • solubility  :Clear to very slightly hazy colorless to faint yellow solution at 50 mg/ml in 0.5 M HCL.
  • form  :Crystalline Powder
  • pka :4.60, 12.16(at 25℃)
  • color  :White to slightly yellow
  • Water Solubility  :soluble
  • Merck  :14,2795
  • BRN  :2637
  • Stability: :Stable. Incompatible with strong oxidizing agents.
  • InChIKey :OPTASPLRGRRNAP-UHFFFAOYSA-N
  • CAS DataBase Reference :71-30-7(CAS DataBase Reference)
  • EWG's Food Scores :1
  • FDA UNII :8J337D1HZY
  • NCI Dictionary of Cancer Terms :cytosine
  • NIST Chemistry Reference :2(1H)-Pyrimidinone, 4-amino-(71-30-7)
  • EPA Substance Registry System :2(1H)-Pyrimidinone, 4-amino- (71-30-7)
Safety
  • Hazard Codes  :Xi,Xn
  • Risk Statements  :36/37/38-20/21/22
  • Safety Statements  :26-36-37/39
  • WGK Germany  :1
  • RTECS  :UW7350150
  • Hazard Note  :Irritant
  • TSCA  :Yes
  • HS Code  :29335910
Hazard and Precautionary Statements (GHS)
  • Symbol(GHS)
  • Signal wordWarning
  • Hazard statements H315-H319-H335
  • Precautionary statements P305+P351+P338-P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313-P261-P280a-P304+P340-P405-P501a
Cytosine Price More Price(56)
  • Brand: Sigma-Aldrich
  • Product number: C3506
  • Product name : Cytosine
  • Purity: ≥99%
  • Packaging: 1g
  • Price: $50.4
  • Updated: 2021/12/16
  • Buy: Buy
  • Brand: Sigma-Aldrich
  • Product number: 1162148
  • Product name : Cytosine
  • Purity: United States Pharmacopeia (USP) Reference Standard
  • Packaging: 100mg
  • Price: $373
  • Updated: 2021/12/16
  • Buy: Buy
  • Brand: TCI Chemical
  • Product number: C0528
  • Product name : Cytosine
  • Purity: >98.0%(HPLC)(T)
  • Packaging: 5g
  • Price: $22
  • Updated: 2021/12/16
  • Buy: Buy
  • Brand: TCI Chemical
  • Product number: C0528
  • Product name : Cytosine
  • Purity: >98.0%(HPLC)(T)
  • Packaging: 25g
  • Price: $65
  • Updated: 2021/12/16
  • Buy: Buy
  • Brand: Alfa Aesar
  • Product number: A14731
  • Product name : Cytosine, 98+%
  • Purity: 
  • Packaging: 5g
  • Price: $51.7
  • Updated: 2021/12/16
  • Buy: Buy

Cytosine Chemical Properties,Usage,Production

  • Description 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.
  • Chemical Properties 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.
  • Uses Cytosine is a nucleoside used for proteomics research. It is also used as an enzyme substrate or precursor of effector molecules such as cytosine sugars.
  • Uses 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.
  • General Description
    Pharmaceutical secondary standards for application in quality control, provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards.
  • Purification Methods 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 Preparation Products And Raw materials
Raw materials
Preparation Products
Global(622)Suppliers
  • Supplier:
    Capot Chemical Co.,Ltd.
  • Tel:+86(0)13336195806 +86-571-85586718
  • Fax:+86-571-85864795
  • Email:sales@capotchem.com
  • Country:China
  • ProdList:20012
  • Advantage:60
  • Supplier:
    Henan Tianfu Chemical Co.,Ltd.
  • Tel:0371-55170693
  • Fax:0371-55170693
  • Email:info@tianfuchem.com
  • Country:China
  • ProdList:22607
  • Advantage:55
  • Supplier:
    Hangzhou FandaChem Co.,Ltd.
  • Tel:008615858145714
  • Fax:+86-571-56059825
  • Email:fandachem@gmail.com
  • Country:CHINA
  • ProdList:9134
  • Advantage:55
  • Supplier:
    Guangzhou PI PI Biotech Inc
  • Tel:+8618371201331
  • Fax:020-81716319
  • Email:sales@pipitech.com;87478684@qq.com
  • Country:China
  • ProdList:3283
  • Advantage:55
  • Supplier:
    ATK CHEMICAL COMPANY LIMITED
  • Tel:+86 21 5161 9050/ 5187 7795
  • Fax:+86 21 5161 9052/ 5187 7796
  • Email:ivan@atkchemical.com
  • Country:CHINA
  • ProdList:26782
  • Advantage:60
71-30-7, CytosineRelated Search:
  • 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
  • Cytosine Vetec(TM) reagent grade, 99%
  • 4-Aminopyrimidin-2(1H)-one, 4-Amino-1,2-dihydro-2-oxopyrimidine
  • Gemcitabine EP Impurity A
  • Zidovudine and Lamivudine Tablets ImpuritⅠ:Cytosine (4-amino-2H-pyrimidi-none)
  • Lamivudine Impurity Ⅳ:Cytosine (4-amino-2H-pyrimidi-none)
  • Gemcitabine Hydrochloride ImpuritⅠ:Cytosine (4-amino-2H-pyrimidi-none)
  • 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)
  • Cytosine, 99%, for bio
  • Cytosine &gt
  • Gemcitabine impurity A CRS
  • Gemcitabine EP Impurity A (Cytosine, Lamivudine EP Impurity E)