Description

(+/-)-Praeruptorin B is a bioactive coumarin derivative isolated from plants of the *Peucedanum* genus. This compound is of significant interest for its role as a key intermediate in pharmaceutical research and development, particularly in the study of cardiovascular and respiratory therapeutics. It is primarily utilized by research institutions, pharmaceutical developers, and manufacturers of high-purity reference standards.

Application

• Pharmaceutical Intermediate: Serves as a critical building block in the synthesis of novel drug candidates targeting various biological pathways.
• Biochemical Research: Used as a reference standard and active agent in pharmacological and mechanism-of-action studies.
• Natural Product Isolation & Analysis: Acts as a marker compound for the quality control and standardization of herbal extracts, particularly from traditional medicinal sources.
• Academic & Discovery Research: Employed in university and institutional labs for exploring the structure-activity relationships (SAR) of coumarin derivatives.
• Reference Material Production: Supplied to manufacturers for creating certified reference materials (CRMs) and analytical standards.

Basic Information

Product Name	(+/-)-Praeruptorin B
CAS No.	73069-26-8
Molecular Formula	C₂₁H₂₂O₇
Molecular Weight	386.40 g/mol
Synonyms	DL-Praeruptorin B; (±)-Praeruptorin B; Praeruptorin B (racemic); 3',4'-Dihydro-3',4'-diacetoxy-2',2'-dimethylpyrano[5',6':6,7]coumarin; 3',4'-Di-O-acetylkhellactone; 3',4'-Diacetoxy-3',4'-dihydroseselin; (+/-)-3',4'-Diacetoxy-3',4'-dihydroxanthyletin
EINECS	Contact for details

Quality Control

Our (+/-)-Praeruptorin B is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via spectroscopic methods (IR, NMR, MS). We provide full traceability and a Certificate of Analysis (COA) with every shipment, detailing all test results against established specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (typically 15-25°C). The product is light-sensitive and should be handled accordingly to maintain stability.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.5%

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