Description

Naphthol As-D Acetate is a specialized organic compound belonging to the class of naphthol esters. This chemical serves as a critical chromogenic substrate in histochemical and cytochemical staining procedures, enabling the precise localization of enzymatic activity. It is primarily utilized by manufacturers and research laboratories in the life sciences, diagnostics, and biotechnology sectors for developing staining kits and reagents.

Application

• Histochemical Staining: Key substrate for the detection of esterase activity, particularly non-specific esterases, in tissue sections.
• Cytochemical Analysis: Used in cell smears and blood films to identify and differentiate specific cell types based on enzymatic profiles.
• Diagnostic Reagent Manufacturing: An essential raw material in the production of diagnostic kits for hematology and pathology.
• Enzyme Activity Studies: Employed in biochemical research to study esterase kinetics and inhibition.
• Research & Development: Utilized in academic and industrial R&D for developing new staining methodologies and assays.

Basic Information

Product Name	Naphthol As-D Acetate
CAS No.	528-66-5
Molecular Formula	C14H13NO3
Molecular Weight	243.26 g/mol
Synonyms	3-Hydroxy-2-naphthanilide acetate; Naphthol AS-D acetate; Naphthol ASD acetate; 2-Naphthol, 3-hydroxy-N-phenyl-, acetate (ester); 3-Acetoxy-2-naphthanilide; Naphthol AS-D chloroacetate (common misnomer); α-Naphthol AS-D acetate; Naphthanilide AS-D acetate
EINECS	208-438-8

Quality Control

Our Naphthol As-D Acetate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure high purity and consistency, meeting the exacting standards required for diagnostic and research applications. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and related substance tests is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep the container tightly sealed when not in use to prevent moisture absorption and contamination.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	158°C - 162°C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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