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Pharmaceutical secondary standards for application in quality control provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards
This certified reference material (CRM) is produced and certified in accordance with ISO/IEC 17025 and ISO 17034. This CRM is traceable to primary material from an NMI, e.g. NIST or NMIJ.
Chrysophanol is an anthraquinone compound and occurs naturally in Chinese herb Rheum officinale. It shows antimicrobial activity, and is an active component in many crude drugs having purgative properties.