Cytosine
Molecular Structure:
MDL:
MFCD00006034
Molecular Formula:
C4H5N3O
Molecular Weight:
111.10
Alias:
4-氨基-2-羟基嘧啶,4-氨基-2(1H)嘧啶酮
4-Amino-2-hydroxypyrimidine
4-amino-2(1h)-pyrimidinone
Product order:
Name |
Specifications |
Packing |
Price |
Delivery |
Cytosine |
99% |
5g |
RMB 207.9 |
Consulting service |
Cytosine |
99% |
25g |
RMB 724.9 |
Consulting service |
Cytosine |
99% |
100g |
RMB 2409 |
Consulting service |
Character:
100℃失水,300℃时成棕色,320~325℃分解。溶于水,溶于碱和酸,微溶于乙醇、氯仿;不溶于乙醚和烃。
熔点:300℃
Quality Standard:
外观Appearance 白色至类白色粉末
红外光谱鉴别Infrared spectrometry 符合
纯度Purity >99.0% (HPLC)
UV 98.0-102.0 % (λ max. 275 nm, pH 1)
干燥损失Loss on drying <0.5 % (105°C, 5 小时)
重金属Heavy metals (as Pb) <10 ppm
硫酸盐灰分Sulfated ash <0.1 % (800°C)
氮Nitrogen (N) 37.06-38.58 % (on dry basis)
吸光率Ratio of Absorbances 0.46 ~ 0.5 (A250/A260)
1.47 ~ 1.53 (A280/A260)
Storage:
室温保存
用途 生化研究。
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