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Dear Customer:

The current international situation is complex and volatile, and uncertain tariff policies may potentially impact our product prices. Given these uncertainties, we value your understanding regarding order-related matters.

If you decide to place an order during this period, we reserve the right to adjust the price based on the evolving situation. We understand that market changes may cause inconvenience. We will negotiate with you if there’s a significant price fluctuation due to tariff policy changes before the order’s actual delivery, and in such cases we may adjust or cancel the order as necessary.

We are planning system maintenance between Friday, Apr 11 at 9:00 PM CDT and Saturday, Apr 12 at 9:00 AM CDT. This will impact both web and offline transactions, including online orders, quotes, price and availability checks, and order status inquiries. We apologize for any inconvenience.

Merck
CN

Phytochemical Standards

This image consists of few pieces of ginger and 4 small bottles with red cap containing some form of chemical.

Our range of reference materials includes over 2000 isolated plant ingredients, which can be main constituents, common markers or toxic constituents of widely used medicinal plants. The portfolio includes natural compound classes such as alkaloids (including a comprehensive range of pyrrolizidine alkaloids), isoprenoids (terpenes), flavonoids, phenylpropanes, quinones, tannins, and glucosinolates.

Below you can find a selective list of some common medicinal and herbal supplements plants by plant genus. The links will lead you to corresponding listings of chemical marker standards, botanical reference materials, extract reference materials or certified reference material mixes of the corresponding plants.


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PLANT GENUS SPECIFIC PHYTOCHEMICAL STANDARDS

Below you can find a selective list of some common medicinal and herbal supplements plants by plant genus. The links will lead you to corresponding listings of chemical marker standards, botanical reference materials, extract reference materials or certified reference material mixes of the corresponding plants.

CERTIFIED REFERENCE MATERIALS

Phytochemical Certified reference materials (CRM) are manufactured under ISO/IEC 17025 and ISO 17034 accreditation and are traceable to SI. Click here to learn more about accreditation and traceability.

Our neat CRMs of phytochemicals include products under the TraceCERT® brand as well as secondary pharmaceutical standards that in addition of being ISO 17034 are multi traceable to various pharmacopoeia compendial standards such as USP, EP or BP.

In addition, we offer multicomponent certified reference material (CRM) solutions of widely used medicinal plants such as ginseng, ginkgo, ginger, kava, ashwagandha, echinacea, silybum and green tea, aimed at convenience and cost effectiveness. These CRM solutions contain constituents of the corresponding plant.

Also, we offer CRM mixes of terpenes, suitable for Cannabis testing.

PHYTOLAB HERBAL REFERENCE STANDARDS

PhytoLab is a world-renowned manufacturer of extensively documented herbal reference standards. As a partner of PhytoLab we provide more than 1400 of their reference standards. Phytolab products include detailed product documentation to confirm product identity and assigned purity. The products have their exact weight printed on the label of the inner vial, enabling their direct dissolution and preventing material loss.

HWI ANALYTIC HERBAL MEDICINE REFERENCE STANDARDS

In collaboration with HWI Pharma Services GmbH, we provide primary and secondary reference standards for use in quality control, in-process control, and stability testing of herbal medicinal products. As the exclusive distributor, we offer standards produced and qualified by HWI Pharma Services GmbH. Each standard is provided with an analytical report containing chromatographic purity, and the content assigned by qNMR.

BOTANICERT BOTANICAL reference materials

We also offer a comprehensive range of Botanical Reference Materials from BotaniCERT™. Also Check out the BotaniCERT Flyer. These products samples of plants or plant parts (leaf, root, rhizome, fruit, flower, seed...) authenticated by organoleptic criteria, macroscopic and microscopic examination, HP-TLC and HPLC phytochemical fingerprint and genetic markers by PCR. They are given with 2 or 3 markers (ITS, matK, rbcL) and DNA sequences are reported.

Find an BotaniCERT example certificate here.

BOTANICAL EXTRACTS

We offer a series of plant extracts reference materials, designed to serve as references for the analysis and study of medicinal plants. This range includes products from HWI pharma services and NIST. For the HWI products, the identity of the characteristic components of each extract is confirmed and their chromatogram peaks are assigned by comparison with analytical standards. In addition to one or several key components, quantitative values are also given.



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