哌嗪-N,N’-雙(2-乙磺酸)二鈉鹽（PIPES-2Na），CAS：76836-02-7為生物緩沖劑，白色粉末。溶解度H2O：0.5 g/mL，clear，colorless。
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Assay
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≥98.0%
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Solubility in water
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Clear,colorless water solution
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Water
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≤3.0%
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pH (1% Di water 25℃)
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9.0~12.0
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A280 0.1M water
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≤0.05
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A260 0.1M water
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≤0.05
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Infrared
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Complies
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Appearance
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White crystalline powder
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PIPES-1.5Na; 哌嗪-N,N'-二 (2-乙磺酸)倍半鈉鹽
PIPES;哌嗪-N,N’-雙 (2-乙磺酸)