甲硫氨酸 L-Methionine
产品编号: ME198CAS: 63-68-3现货

甲硫氨酸 L-Methionine

本品经过严格的细菌内毒素与微生物限度控制,适用于对热原要求严苛的生物制品及注射剂级研发。

选择规格
* COA 批次号随货同步更新

1kg/Bag

¥720.00

库存: 100 件

5kg/Drum

¥3,100.00

库存: 100 件

25kg/Drum

¥14,725.00

库存: 100 件

采购数量
剩余库存 100
已选规格配置1kg/Bag × 1
合计¥720.00

推荐应用场景

CHO细胞培养疫苗生产单克隆抗体研发

质量检测标准

【性状】
应为白色或类白色结晶或结晶性粉末;有特臭。本品在水中溶解,在乙醇中几乎不溶,在乙醚中不溶;在稀盐酸或氢氧化钠溶液中易溶。 Should be white or off-white crystals or crystalline powder; has a characteristic odor. This product is soluble in water, almost insoluble in ethanol, insoluble in ether; soluble in dilute hydrochloric acid or sodium hydroxide solution.
比旋度
应为 +21.0° ~ +25.0°
【鉴别】(1) 化学鉴别
应呈正结果 Should be positive.
【鉴别】(2) 薄层色谱
供试品溶液所显主斑点的位置和颜色应与对照品溶液的主斑点相同 The position and color of the main spot in the test solution should be the same as that of the main spot in the reference solution.
【鉴别】(3) 红外光谱
红外光吸收图谱应与对照的图谱(光谱集 1045 图)一致 The infrared absorption spectrum should be consistent with the reference spectrum (Spectrum 1045).
酸度
应为 5.6~6.1
溶液的透光率
在 430nm 的波长处应不得低于 98.0% The transmittance at 430nm should not be less than 98.0%.
氯化物
应不得过 0.02% Should not exceed 0.02%.
硫酸盐
应不得过 0.02% Should not exceed 0.02%.
铵盐
应不得过 0.02% Should not exceed 0.02%.
其他氨基酸
应不得超过 1 个,不得过 0.5% Should not exceed 1 and not exceed 0.5%.
干燥失重
应不得过 0.2% Should not exceed 0.2%.
炽灼残渣
应不得过 0.1% Should not exceed 0.1%.
铁盐
应不得过 0.0015% Should not exceed 0.0015%.
重金属
应不得过百万分之十 Should not exceed 10 ppm.
砷盐
应不得过 0.0001% Should not exceed 0.0001%.
细菌内毒素
应小于 25EU/g Should be less than 25 EU/g.
【含量测定】
按干燥品计算,含甲硫氨酸 (C5H11NO2S) 不得少于 98.5% Calculated on the anhydrous basis, the content of Methionine (C5H11NO2S) should not be less than 98.5%.