Description

Mesobilirubin is a tetrapyrrole bile pigment and a key intermediate in the biochemical pathway of heme catabolism. Its significance lies in its role as a research standard and precursor for studying bilirubin metabolism, phototherapy, and antioxidant mechanisms. This high-purity compound is essential for researchers and manufacturers in the pharmaceutical, diagnostic, and biochemical sectors who require reliable reference materials for analytical and developmental work.

Application

• Biochemical Research Standard: Used as a certified reference material (CRM) for the quantification and study of bilirubin and related metabolites in biological samples.
• Pharmaceutical Development: Serves as a critical intermediate in research focused on novel therapies for hyperbilirubinemia and liver function disorders.
• Diagnostic Reagent Manufacturing: Employed in the production of calibration standards and controls for clinical chemistry analyzers measuring liver function.
• Photodynamic Therapy (PDT) Research: Investigated for its potential photosensitizing properties and role in light-based treatment studies.
• Antioxidant Studies: Utilized in vitro to explore the radical scavenging and cytoprotective activities of bile pigment derivatives.
• Enzymology: Acts as a substrate for studies involving biliverdin reductase and other enzymes in the heme degradation pathway.

Basic Information

Item	Detail
Product Name	Mesobilirubin
CAS No.	16568-56-2
Molecular Formula	C33H42N4O6
Molecular Weight	590.71 g/mol
Synonyms	1,3,5,7(1H,8H)-Tetramethyl-2,8-divinylbilinone; 2,17-Diethenyl-1,10,19,22,23,24-hexahydro-3,7,13,18-tetramethyl-1,19-dioxo-21H-biline-8,12-dipropanoic acid; Mesobilirubin IXα; (4Z,15Z)-Bilirubin IXα; Urobilin
EINECS	Contact for details

Quality Control

Our Mesobilirubin is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity suitable for research applications. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles. We adhere to relevant guidelines for analytical reference standards to support your critical R&D and quality control requirements.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at controlled room temperature (15-25°C) or as specified on the label. This product is light-sensitive and easily oxidized; prolonged exposure to air, light, or elevated temperatures should be avoided to maintain stability.

Specification

Item	Specification
Appearance	Orange to red-brown powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0 %
Residue on Ignition	≤ 0.5 %
Heavy Metals (as Pb)	≤ 20 ppm

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