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p-hydoxybenzoic acid,monosodium CAS 114-63-6It is use as clinical biochemical test agent.
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Citric acid CAS 77-92-9It is a weak organic acid, which is a natural preservative produced in citrus fruits, and also a sour additive in food and beverages.
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2-Mercaptopyridine N-oxide sodium salt CAS 3811-73-2It is a bidentate complexing agent used to chelate transition metals at a pH range of 0.7-7.4
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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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Cholic acid CAS 81-25-4It is the main component of bile acid, insoluble in water, soluble in ethanol and acetic acid
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L-Alanine CAS 56-41-7It is a non-essential amino acid and produced enzymatically from L-aspartate using aspartate β-decarboxylase.