Keywords

• Cytosine
• 71-30-7
• C4H5N3O

Quick Details

• ProName: Cytosine
• CasNo: 71-30-7
• Molecular Formula: C4H5N3O
• Appearance: White powder
• Application: Pharmaceutical industry
• DeliveryTime: Stock
• PackAge: 1kg/bag ,25kg/bag; 25kg/drum; customiz...
• Port: Shanghai/tianjin
• ProductionCapacity: 1000 Metric Ton/Year
• Purity: 99%
• Storage: Seal and store in a cool and dry place
• Transportation: Sea Freight Transportation, Land Trans...
• LimitNum: 1 Gram

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Details

Cytosine, or 4-amino-2-carbonyl pyrimidine, is an organic compound with the formula C4H5N3O. It is one of the main base components of nucleic acids (DNA and RNA). Cytosine can be synthesized from dimercapto uracil, concentrated ammonia and chloroacetic acid as raw materials. Used as a drug intermediate. Or C for short. One of the pyrimidine bases of nucleic acid. It's found in DNA and RNA. In plant DNA, in addition to cytosine, there are small amounts of 5-methylcytosine. In the double helix of DNA, cytosine on one strand pairs with guanine on the other strand, forming three hydrogen bonds between the molecules. The hydrogen bond between complementary base pairs is one of the important forces for the stability of DNA double helix structure. Cytosine nucleoside and cytosine nucleotide can be used as drugs to raise leukocytes. It can be synthesized from dimercaptouracil, concentrated ammonia and chloroacetic acid as raw materials.

Water loss at 00℃, brown at 300℃, decomposition at 320 ~ 325℃. 1g product can dissolve in 130ml water, slightly soluble in ethanol, insoluble in ether. At pH2, the maximum absorption wavelength is 276nm, the molar absorption coefficient is 10000, the minimum absorption wavelength is 238nm, and the absorbance ratio is A250/A260=0.48, A280/A260=1.53, A290/A260=0.78. It's stimulating.