High purity Choline-[D4] Chloride (CAS: 285979-70-6) analytical reference standard, specification 1000mg/Lin Acetonitrile : 水(2:8)（以胆碱-D4计）, 1.2ml. Direct laboratory export by ROWELL. Request a quote.
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Reference-standard selection and use must follow the applicable analytical procedure and laboratory quality system.