Description

Juglone Crystallized CAS NO 481-13-0 is a high-purity, crystalline form of the naturally occurring naphthoquinone compound, 5-hydroxy-1,4-naphthoquinone. This specialized grade is critical for applications requiring precise chemical structure and consistent biological activity, offering superior stability and handling characteristics compared to crude extracts. It serves as an essential biochemical tool and intermediate for researchers and manufacturers in the pharmaceutical, agrochemical, and life science sectors.

Application

• Pharmaceutical Research & Development: As a key reference standard and active pharmaceutical ingredient (API) intermediate in the study of natural product-based therapeutics, particularly for its antimicrobial and antitumor properties.
• Agrochemical Formulations: Utilized in the development of natural herbicides and plant growth regulators, leveraging its allelopathic (plant-inhibiting) characteristics.
• Biochemical Research: Acts as a specific inhibitor in enzymatic studies, particularly for investigating mitochondrial function and electron transport chain activity.
• Dye & Pigment Intermediate: Serves as a precursor in the synthesis of specialized dyes and pigments due to its distinct quinone structure and color properties.
• Antifouling Agent Development: Investigated for use in marine coatings and materials to prevent biofouling based on its natural biocidal activity.
• Cosmetic Science: Used in research for natural preservative systems and for studying skin-depigmenting agents.

Basic Information

Product Name	Juglone Crystallized
CAS No.	481-13-0
Molecular Formula	C10H6O3
Molecular Weight	174.15 g/mol
Synonyms	5-Hydroxy-1,4-naphthalenedione; 5-Hydroxynaphthoquinone; Nucin; Regianin; Walnut extract; C.I. 75500; Natural Brown 7; 1,4-Naphthoquinone, 5-hydroxy-
EINECS	207-567-5

Quality Control

Our Juglone Crystallized is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity, IR and NMR for structural confirmation, and residual solvent analysis, to ensure it meets stringent specifications for research and industrial use. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming identity, purity, and conformance to the agreed specification.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (15-25°C). Due to its sensitivity to oxidation, it is recommended to store the product under an inert atmosphere for long-term preservation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Yellow to brownish-yellow crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Assay (HPLC)	≥ 98.0%
Melting Point	155°C - 165°C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm

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