Description

Methylene Diurethane CAS NO 3693-53-6 is a versatile chemical intermediate primarily used in the synthesis of specialized polymers and fine chemicals. This compound is valued for its role as a protected diamine precursor, offering controlled reactivity in multi-step organic syntheses. It is essential for manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors seeking to develop high-performance products with specific functional properties.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of active pharmaceutical ingredients (APIs) and complex drug molecules.
• Polymer Chemistry: Serves as a monomer or chain extender in the production of polyurethanes, polyureas, and other specialty polymers.
• Agrochemical Synthesis: Used in the manufacture of herbicides, fungicides, and plant growth regulators.
• Crosslinking Agent: Imparts structural integrity and thermal stability to coatings, adhesives, and elastomers.
• Chemical Research: Employed in academic and industrial R&D for developing novel organic compounds and materials.
• Fine Chemical Production: Intermediate for synthesizing dyes, pigments, and other high-value specialty chemicals.

Basic Information

Product Name	Methylene Diurethane
CAS No.	3693-53-6
Molecular Formula	C5H10N2O4
Molecular Weight	162.15 g/mol
Synonyms	1,1'-Methylenebis(urethane); Bis(urethane)methane; Methylene bis(urethane); Methylene di(urethane); Methanediyldiurethane; N,N'-Methylenediurethane; Urethane, 1,1'-methylenebis-; NSC 403697
EINECS	223-015-4

Quality Control

Our Methylene Diurethane is produced under a strict quality management system to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced techniques including HPLC, GC, and NMR to confirm identity and assay. A comprehensive Certificate of Analysis (COA) detailing purity, impurity profile, and physical characteristics is provided with every shipment. We adhere to cGMP principles where applicable to meet the stringent requirements of our global customer base.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product quality and stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Melting Point	158 - 162 °C
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm
Residual Solvents (GC)	Meets ICH guidelines

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