Description

4-Methylumbelliferone (CAS NO 90-33-5) is a versatile heterocyclic organic compound belonging to the coumarin family, valued for its strong fluorescence properties. It serves as a critical intermediate and analytical reagent in biochemical research and industrial applications. This product is essential for manufacturers and researchers in the pharmaceutical, diagnostic, and fine chemical sectors seeking a reliable, high-purity fluorogenic substrate.

Application

• Fluorogenic Enzyme Substrate: Widely used as a substrate for detecting enzyme activities, particularly for β-glucuronidase and sulfatase in diagnostic kits and biochemical assays.
• Pharmaceutical Intermediate: Serves as a key building block in the synthesis of various pharmaceutical compounds and active ingredients.
• Biochemical Research: Employed in fluorescence microscopy, cell biology, and molecular biology as a tracer or probe due to its blue fluorescence under UV light.
• Industrial Dyes & Fluorescent Whitening Agents: Acts as a precursor in the manufacture of optical brighteners and specialty dyes for textiles and paper.
• Analytical Chemistry Standard: Used as a reference standard in HPLC and other chromatographic methods for quality control and method validation.

Basic Information

Product Name	4-Methylumbelliferone
CAS No.	90-33-5
Molecular Formula	C10H8O3
Molecular Weight	176.17 g/mol
Synonyms	4-Methylumbelliferone; Hymecromone; 4-Methyl-7-hydroxycoumarin; 7-Hydroxy-4-methylcoumarin; 4-MU; β-Methylumbelliferone; 4-Methyl-7-hydroxy-2H-1-benzopyran-2-one; SKF 14287
EINECS	201-988-8

Quality Control

Our 4-Methylumbelliferone is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation (IR), to ensure it meets the high standards required for research and industrial use. Certificates of Analysis (COA) with detailed specifications are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	292 - 296 °C
Loss on Drying	≤ 1.0%
Heavy Metals	≤ 20 ppm
Residue on Ignition	≤ 0.1%

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