Description

Methylene Diacetate, 99 CAS NO 628-51-3 is a high-purity organic ester compound, serving as a versatile chemical intermediate and solvent in advanced manufacturing processes. Its primary value lies in its bifunctional structure, which makes it a valuable precursor for synthesizing other fine chemicals and polymers. This product is essential for research and development laboratories, pharmaceutical intermediates production, and specialty chemical manufacturing where high purity and consistent quality are critical.

Application

• Chemical Synthesis Intermediate: A key precursor in the production of formaldehyde derivatives and other acetates.
• Pharmaceutical Manufacturing: Used in the synthesis of active pharmaceutical ingredients (APIs) and other drug intermediates.
• Polymer & Resin Production: Acts as a cross-linking agent or monomer in the formulation of specialty polymers and coatings.
• Solvent for Specialty Reactions: Employed as a reaction medium in organic synthesis, particularly where a polar aprotic solvent is beneficial.
• Flavor & Fragrance Industry: Serves as a starting material for the synthesis of certain aroma chemicals.
• Agrochemical Intermediates: Used in the manufacture of certain pesticides and herbicides.
• Laboratory Research & Development: A valuable reagent for method development and exploratory chemistry in R&D settings.

Basic Information

Product Name	Methylene Diacetate, 99 CAS NO 628-51-3
CAS No.	628-51-3
Molecular Formula	C5H8O4
Molecular Weight	132.11 g/mol
Synonyms	Methylene Diacetate; Methylene Glycol Diacetate; Diacetoxymethane; Formaldehyde Diacetate; Methanediol Diacetate; 1,1-Diacetoxymethane; Methylene Diacetate (MDA); Bis(acetoxy)methane
EINECS	211-044-1

Quality Control

Our Methylene Diacetate is produced under a stringent quality management system to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including assay, identity confirmation, and impurity profiling. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee compliance with your specifications and industry standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong acids and oxidizing agents. Recommended storage temperature is between 15°C and 25°C (59°F and 77°F). Keep container tightly sealed when not in use to minimize moisture absorption and prevent evaporation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 99.0 %
Water Content (KF)	≤ 0.5 %
Acidity (as Acetic Acid)	≤ 0.1 %
Specific Gravity (20°C)	1.150 - 1.170
Refractive Index (20°C)	1.410 - 1.415

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