Description

Fluorescein Dilaurate is a chemically synthesized ester derivative of fluorescein, widely utilized as a key substrate in enzymatic assays. Its primary commercial value lies in its role as a specific and sensitive chromogenic probe for detecting lipase and esterase activity. This compound is essential for researchers and quality control laboratories in the pharmaceutical, biotechnology, and diagnostic industries, where precise enzyme quantification is critical. Fluorescein Dilaurate CAS NO 7308-90-9 offers a reliable and standardized tool for biochemical analysis and high-throughput screening applications.

Application

• Enzymatic Assay Substrate: Primary use as a chromogenic substrate for the quantitative determination of lipase and esterase activity in vitro.
• Diagnostic Reagent Manufacturing: A key raw material in the production of clinical diagnostic kits for pancreatic function and related disorders.
• Pharmaceutical Research & Development: Used in drug discovery screens to identify and characterize potential inhibitors or activators of lipolytic enzymes.
• Biochemical Research: Employed in academic and industrial laboratories to study enzyme kinetics, mechanism of action, and substrate specificity.
• Food Science & Quality Control: Applied in assays to measure lipase activity in food products, ingredients, and during fermentation processes.
• Microbiology: Useful in assays to detect and characterize lipase-producing microorganisms.

Basic Information

Product Name	Fluorescein Dilaurate
CAS No.	7308-90-9
Molecular Formula	C44H58O7
Molecular Weight	698.93 g/mol
Synonyms	Fluorescein Dilaurate; Fluorescein Dodecanoate; Dilauryl Fluorescein; FD; Fluorescein Laurate Ester; 3',6'-Dihydroxy-3H-spiro[isobenzofuran-1,9'-xanthene]-3-one dodecanoate; 2-(6-Hydroxy-3-oxo-3H-xanthen-9-yl)benzoic acid dodecyl ester; Resorufin dilaurate (related).
EINECS	Contact for details

Quality Control

Our Fluorescein Dilaurate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for research and diagnostic applications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and related substance profiles is provided with every shipment to guarantee batch-to-batch consistency and traceability.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); ensure the container is kept tightly sealed in a dry environment to prevent absorption of moisture. For long-term storage, consider using a desiccant.

Specification

Item	Specification
Appearance	Orange to red powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Solubility	Soluble in DMSO, DMF; sparingly soluble in ethanol

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