Description

Aurantio-Obtusin is a naturally occurring anthraquinone compound, a key marker and active constituent found in traditional medicinal herbs such as *Cassia obtusifolia* (Sicklepod). This high-purity reference standard is essential for research, quality control, and standardization processes where precise chemical identification and quantification are paramount. It is primarily utilized by analytical laboratories, pharmaceutical R&D departments, and nutraceutical manufacturers focused on herbal extract authentication and bioactivity studies.

Application

• Pharmaceutical Reference Standard: Serves as a certified primary standard for the identification and assay of herbal raw materials and finished products in pharmacopoeial testing.
• Herbal Extract Authentication: Used as a marker compound in HPLC and LC-MS methods to verify the authenticity, purity, and potency of Cassia species extracts.
• Biochemical Research: Employed in in vitro and in vivo studies to investigate its pharmacological properties, including potential antioxidant, anti-inflammatory, and neuroprotective activities.
• Quality Control (QC) & Quality Assurance (QA): Integral for establishing and validating analytical methods in QC/QA laboratories to ensure batch-to-batch consistency of herbal supplements.
• Nutraceutical Standardization: Critical for standardizing commercial herbal formulations to a specific content of active anthraquinones, ensuring product efficacy and label claim compliance.
• Academic Research: Used in universities and research institutes for studies in phytochemistry, natural product isolation, and metabolic pathway analysis.

Basic Information

Product Name	Aurantio-Obtusin
CAS No.	67979-25-3
Molecular Formula	C17H14O7
Molecular Weight	330.29 g/mol
Synonyms	1,3,8-Trihydroxy-2-methyl-6,7-dimethoxyanthraquinone; Aurantio-obtusin; Aurantioobtusin; 6,7-Dimethoxychrysazin; 2-Methyl-1,3,8-trihydroxy-6,7-dimethoxyanthraquinone; Cassia anthraquinone; NSC 339523
EINECS	Contact for details

Quality Control

Every batch of our Aurantio-Obtusin is manufactured and tested under strict quality management systems. We provide comprehensive analytical documentation, including Certificates of Analysis (COA) detailing purity, identity, and impurity profiles via validated methods such as HPLC, MS, and NMR. Our quality commitment ensures the material is suitable for use as a high-grade reference standard in demanding pharmaceutical and research applications.

Storage

Preserve in a tightly closed container, protected from light. Store at controlled room temperature (15-25°C) in a dry environment. For long-term storage, consider storing under inert atmosphere to maximize stability.

Specification

Item	Specification
Appearance	Yellow to orange powder
Identification (HPLC)	Conforms to reference standard
Identification (IR)	Conforms to structure
Purity (HPLC)	≥98.0%
Loss on Drying	≤0.5%
Residue on Ignition	≤0.1%
Heavy Metals	≤10 ppm
Solubility	Soluble in DMSO, Methanol; slightly soluble in Ethanol

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