Description

cis-Piceatannol is a specific stereoisomer of the natural stilbenoid polyphenol, piceatannol. This compound is of significant interest for its potent biological activity, particularly as a selective inhibitor of Syk kinase, which drives research in cellular signaling pathways. It serves as a critical high-purity reference standard and biochemical tool for pharmaceutical R&D, nutraceutical development, and advanced life science studies.

Application

• Pharmaceutical Research & Development: Used as a key reference standard and active pharmaceutical ingredient (API) intermediate in drug discovery programs targeting inflammation and oncology.
• Biochemical & Cell Biology Studies: Employed as a selective Syk kinase inhibitor to investigate immune cell signaling, allergy pathways, and related metabolic processes.
• Nutraceutical & Cosmetic Formulation: Incorporated into advanced formulations for its antioxidant and potential skin-benefiting properties, leveraging its natural polyphenol structure.
• Analytical & Quality Control Laboratories: Serves as a certified reference material (CRM) for HPLC, LC-MS, and NMR method development and validation to ensure product purity and compliance.
• Academic Research: A vital tool for universities and research institutes studying stilbenoid chemistry, natural product synthesis, and molecular mechanisms of action.

Basic Information

Item	Detail
Product Name	cis-Piceatannol
CAS No.	106325-86-4
Molecular Formula	C14H12O4
Molecular Weight	244.24 g/mol
Synonyms	3,5,3',4'-Tetrahydroxy-cis-stilbene; (Z)-Piceatannol; (Z)-3,5,3',4'-Tetrahydroxystilbene; cis-3,4',3',5-Tetrahydroxystilbene; cis-Astringin aglycone; (Z)-4-[(3,5-Dihydroxyphenyl)ethenyl]benzene-1,2-diol
EINECS	Contact for details

Quality Control

Our cis-Piceatannol is manufactured under strict quality management systems. Each batch is subjected to comprehensive analytical testing, including HPLC for purity and identity confirmation by IR and NMR spectroscopy, to ensure it meets the high standards required for research and development. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. For long-term stability, store at 2-8°C under an inert atmosphere (e.g., nitrogen or argon) to prevent oxidation. Keep the container in a cool, dry, and well-ventilated place.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.