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p-hydoxybenzoic acid,monosodium CAS 114-63-6It is use as clinical biochemical test agent.
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Ethylenediaminetetraacetic acid tripotassium salt dihydrate CAS 65501-24-8/17572-97-3It is used to chelate metal ions.
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Potassium sodium tartrate tetrahydrate CAS 6381-59-5It is a ferroelectric crystal with a high piezoelectric effect and electromechanical coupling coefficient.
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Potassium sorbate CAS 24634-61-5/590-00-1It is a highly effective and safe preservative. It has good corrosion resistance, high safety, and good stability.