白桦脂酸中英文描述：
【热回流提取法】：称取相应粒度的甘草10克，第1次加入溶剂100ml于约80℃温度下进行回流提取1.5小时，过滤；提取后的残渣加入溶剂80ml进行第二次回流提取1.5小时，过滤；再次将残渣加入溶剂80ml进行第三次回流提取1.5小时，过滤。【中文名称】：白桦脂酸
English Name：Betulinic acid【中文别名】：白桦酯酸
English alias：3β-hydroxy-lup-20(29)-ene-28-oicacid.【CAS号】：472-15-1
CAS No.：472-15-1【分子式】：C30H48O3
Molecular Formula：C30H48O3【分子量】：456.71
Molecular Weight：456.71【外观】：白色结晶
Appearance：White crystalline【纯度】：≥98%
Purity：≥98%【鉴定方法】：Mass, NMR
Identification method：Mass, NMR【分析方法】：HPLC-DAD or/and HPLC-ELSD
Analysis method：HPLC-DAD or/and HPLC-ELSD【熔点】：295～298℃
Mp：295～298℃【旋光度】：+8°（丙酮）
Rotation：+8°（Acetone）【溶解性】：不溶于水，微溶于甲醇、乙醇、丙酮，易溶于四氢呋喃、吡啶
Solubility：Insoluble in water,slightly soluble in methanol, ethanol, acetone, soluble in tetrahydrofuran, pyridine.【提取来源】：桦木属植物白桦(
Betul aalba L.)的树皮
Extraction Source：Betul aalba L.【用途】：用于含量测定、鉴定、药理实验等
Usage：For the determination and identification, pharmacological experiments.【贮存条件】：4℃冷藏、密封、避光
Storage：4℃Refrigerated, sealed, dark.【有效期】：2年
Expiration：2 years【包装】：20mg, 50mg, 100mg, 1g, 10g, 100g, 1kg, 50kg...本公司可根据客户需要大量提供高纯度白桦脂酸，按客户要求包装
Package：20mg, 50mg, 100mg, 1g, 10g, 100g, 1kg, 50kg... The company can provide a large
number of high-purity betulinic acid according to customer requirements.
【药理药效】：白桦脂酸可以选择性地杀死人类黑色素瘤细胞而不杀伤健康细胞；白桦脂酸对HIV-1型感染有抑制作用，另外近期的研究表明白桦脂酸对脑瘤、神经外胚层瘤、白血病等恶性肿瘤细胞也有抑制作用
Pharmacological effect：Betulinic acid can selectively kill human melanoma cells, but not kill healthy cells; betulinic acid can inhibit the infection of HIV-1, additional recent studies have shown that betulinic acid also can inhibite brain tumor, neuroectodermal tumor, leukemia and other malignant cells.
随货附产品质量检测及鉴定报告，欢迎来电来函咨询。南京春秋生物工程有限公司专业与专注于植物来源天然化合物毫克级至公斤级生产、中药对照品（标准品）生产和药理用高纯度植物来源天然化合物生产及订制5年，拥有专业、高效的植物来源天然化合物及对照品研发及生产中心，严格的生产工艺流程和完善的质量标准控制，保证产品的质量可控性及批量生产的稳定性；完善的库存及供应体系，所有产品均能现货供应。本公司所提供的各种产品严格按照最新版《中国药典》、《美国药典》、《欧洲药典》进行质量控制，产品远销欧、美、日、韩、印等国际市场
Quality certificates and identification reports will go along with the goods. Our company has a R & D team composed by experienced natural products chemist and plant taxonomists, and specialized in the extraction and separation of chemical composition from herbs. The company is major in producing high purity natural products suitable of pharmacological screening or structural modification for customs who are engaged in new drug research and development. We
can also provide bulk level (kg) customization services. We have strict production process and perfect quality control standards to ensure product quality and stability; comprehensive inventory and supply system make all products being in stock.
质量承诺：产品若有质量问题，无条件退货换货
Quality commitment：If the product has quality problems, returns and replacement for any reason will be accepted.
