Uric acid
Molecular Structure:
MDL:
MFCD00005712
Molecular Formula:
C5H4N4O3
Molecular Weight:
168.10
Alias:
2,6,8-三羥基嘌呤
2,6,8-trihydroxypurine
8-Hydroxyxanthine
Product order:
Name |
Specifications |
Packing |
Price |
Delivery |
Uric acid |
99% |
10g |
RMB 330 |
現(xiàn)貨 |
Uric acid |
99% |
25g |
RMB 418 |
現(xiàn)貨 |
Uric acid |
99% |
100g |
RMB 1496 |
現(xiàn)貨 |
Character:
微溶于水,溶于熱的濃硫酸和氫氧化鈉堿溶液,溶于甘油、醋酸鈉和磷酸鈉,不溶于醇和醚。
熔點:>300℃
尿酸存在互變異構(gòu),主要以酮式存在。熱的濃鹽酸易將其分解為氨、二氧化碳和甘氨酸。與堿發(fā)生中和反應(yīng)。與五氯化磷或三氯氧磷反應(yīng),生成2,6,8-三氯嘌呤。尿酸是蛋白質(zhì)在動物體的代謝產(chǎn)物,正常人每天從尿液中約排出600mg尿酸。尿酸是人體代謝過程中的廢棄物。 正常情況下,體內(nèi)的尿酸大約有1200毫克,每天新生成約600毫克,同時排泄掉600毫克,處于平衡狀態(tài)。但如果體內(nèi)產(chǎn)生過多來不及排泄或者尿酸排泄機(jī)制退化,則體內(nèi)尿酸潴留過多,當(dāng)血液尿酸濃度大于7毫克/分升,是人體體液變酸,影響人體細(xì)胞的正常功能,長期置之不理將會引發(fā)痛風(fēng)。
Quality Standard:
外觀Appearance 白色至類白色粉末
紅外光譜鑒定Infrared spectrometry 和對照品匹配
純度Purity >99.0% (ex N)
干燥損失Loss on drying <0.5 % (105°C, 3 小時)
重金屬Heavy metals (as Pb) <10 ppm
硫酸鹽灰分Sulfated ash <0.1 %
Storage:
室溫保存
用途 主要用作合成輔酶ATP(三磷酸腺苷)的原料及檢驗鎢酸鹽。
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