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1.优势：高效稳定的纯化技术，完善的库存及供应体系，高效的销售团队。
2.包装规格：常规包装，如有特殊需求，我们根据客户要求包装。
3.运输方式：默认顺丰快递。
4.质量保证：严格的质量控制，通过全面的检测，是产品质量保证的基础。如有异议经我司确认可无条件退换货。
仅供科研实验，不做其他用途！
产品名称：4-Benzoyl-3-methyl-1-phenyl-5-pyrazolone标准品
CAS No.: 4551-69-3
中文名: 4-苯甲酰基-3-甲基-1-苯基-5-吡唑啉酮
别名:
分子式: C17H14N2O2
性状: Powder
纯度: 98.0%
特色服务: 随货提供1H-NMR等报告
关键词:
关于标准品：
一)选择问题
标准品的选择原则包括物质稳定性以及参比物质和测定物质的同质性。
其次，在标准品选择时应该充分关注不同盐基、酸根的不同用途。
二)来源渠道多
其来源渠道一般包括：自制标准品；原料药厂家精制提供；国外购进；直接在原料药基础上提高质量要求后进行对照。我司提供的标准品渠道正规，符合相关标准，请客户放心购买。
关于标准品、对照品的问题：
（一）来源：
依照有关规定，用于药品成品检验的标准品（对照品）来源有：一是药品生物制品所提供的标准品（对照品）；二是其他的标准品（对照品）；三是省级以上药品检验所，并经同级食 品药品监管局批准的标准品（对照品）。
（二）开封问题：
对已开封的标准品（对照品）管理方面的问题应做严格的规定，不应同未开封的标准品（对照品）放在一起继续使用，包装上应做好相关标识，说明是否已开封过、何时开封的，内含量等相关信息。
（三）验证问题：
按标准品（对照品）管理要求，使用前应对其进行验证，确认无误后方可使用。
（四）使用过程：
工作标准品（对照品）虽经有关部门认可，但要求有标化日期、复标日期、贮存条件、使用等相关文件规定，并做好相应记录。
（五）有效期和使用说明书：
药品生物制品所提供的标准品（对照品）大部分均无使用说明书和使用期限，大都沿用新的批号出现、旧的批号自动停止的管理方式。
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