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等级
certified reference material
pharmaceutical secondary standard
质量水平
Agency
traceable to USP 1086403
API类
calcium carbonate
CofA
current certificate can be downloaded
技术
HPLC: suitable
gas chromatography (GC): suitable
密度
2.93 g/mL at 25 °C (lit.)
应用
pharmaceutical (small molecule)
包装形式
neat
储存温度
2-30°C
SMILES字符串
[Ca++].[O-]C([O-])=O
InChI
1S/CH2O3.Ca/c2-1(3)4;/h(H2,2,3,4);/q;+2/p-2
InChI key
VTYYLEPIZMXCLO-UHFFFAOYSA-L
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一般描述
用于质量控制的制药二级标准品，为制药实验室和制造商制备内部工作标准品提供了一种方便、高性价比的替代方案。碳酸钙是一种广泛存在于自然界中的物质，通常被称为方解石。碳酸钙用于制造纸张、油漆、玻璃和陶瓷、聚合物的复合、环境应用（例如废水处理）以及作为涂料和涂料的增量剂。
应用
这些二级标准品是合格的认证标准物质（CRM）。它们适用于多种分析应用，包括但不限于药物释放测试、药物的定性和定量分析方法开发、食品和饮料质量控制检测以及其他校准需求。
分析说明
这些二级标准品可追溯至USP、EP（PhEur）和BP一级标准品。
其他说明
该认证标准物质（CRM）根据ISO 17034 和 ISO/IEC 17025进行生产和认证。有关此CRM使用的所有信息均可在检验报告上找到。
附注
想要查看本品的检验报告示例，请在下框中输入LRAC3446。这只是一个示例证书，可能与您收到的批次不符。
储存分类代码
13 - Non Combustible Solids
WGK
nwg
闪点(°F)
Not applicable
闪点(°C)
Not applicable
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The thermal equilibration of the methyl esters of endiandric acids D and E was subject to a computational study. An electrocyclic pathway via an electrocyclic ring opening followed by a ring flip and a subsequent electrocyclization proposed by Nicolaou [
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