Tetramethylol acetylenediurea CAS 5395-50-6
Chemical Name: Tetramethylol acetylenediurea
Synonymous Names: Tetramethylol glycoluril; Tetramethylolglycoluril; Tetrakis(hydroxymethyl)glycoluril; N,N’,N”,N”’-Tetrakis(hydroxymethyl)glycoluril; TMGU; TMAD
CAS No.: 5395-50-6
Molecular Formula: C8H14N4O6
Molecular Weight: 262.22
Purity: 99%
EINECS No.: 226-408-0
Tetramethylol acetylenediurea is a white crystalline powder used as a crosslinking material and as a raw material for glycoluril-based crosslinkers. Its four hydroxymethyl groups allow it to react with functional polymers and resins during curing.
Tetramethylol acetylenediurea is also an important starting material for etherified glycoluril crosslinkers. The hydroxymethyl groups can be reacted with methanol, butanol and other alcohols to produce glycoluril derivatives for coating and resin systems.
Structural formula:
Product Specifications
| Item | Specification |
| Product name | Tetramethylol acetylenediurea |
| CAS number | 5395-50-6 |
| Appearance | White crystalline powder |
| Assay | ≥99.0% |
| Free formaldehyde | ≤0.5% |
| pH (1% aqueous solution) | 7.5–8.0 |
| Melting point | 132–138°C |
Applications of Tetramethylol Acetylenediurea
Glycoluril Crosslinker Production: Tetramethylol acetylenediurea is used to produce etherified glycoluril crosslinkers. Reaction with methanol or higher alcohols converts its hydroxymethyl groups into alkoxymethyl groups. These glycoluril derivatives are used as curing agents in coating and resin systems.
Coatings and Resins: Tetramethylol acetylenediurea can be used as a crosslinking component in suitable water-based polymer systems. It reacts with functional groups in the resin during curing to form a crosslinked film. For solvent-based coatings, etherified glycoluril derivatives are generally more suitable because their alkyl groups improve compatibility with organic coating systems.
Textile Finishing: Tetramethylol acetylenediurea is used as a crosslinking agent in textile finishing. It can be used in cellulose-based fabric treatment to improve wrinkle resistance and dimensional stability after curing.
Adhesive Systems: Tetramethylol glycoluril can also be used as a crosslinking component in selected water-based adhesive systems. It has been used with vinyl acetate/N-methylolacrylamide copolymer emulsions in crosslinked wood adhesive formulations.
Packaging & Storage
Packaging: 25 kg bags.
Keep the package tightly sealed and protect the product from moisture during storage. Avoid prolonged storage in strongly acidic or alkaline conditions.
Safety
Tetramethylol acetylenediurea can release formaldehyde under hydrolysis conditions. Avoid dust formation and direct contact during handling. Use suitable protective equipment and refer to the SDS before industrial use.








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