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What is it?
Methylene-bis(methyloxazolidine) is a preservative found primarily in oils, textiles, adhesives, and leather. It is a formaldehyde releaser, meaning it releases small amounts of formaldehyde as it decomposes.

How can I avoid it?
Avoidance requires reading the product labels, package inserts, workplace Safety Data Sheets (SDS), and on occasion, direct communication with the manufacturer.

Uses:
• Adhesives
• Cooling fluids
• Leather
• Oils
• Textiles

Other names for methylene-bis(methyloxazolidine):
• N,N´-methylenebis(5-methyloxazolidine)
• 3,3´-Methylenebis(5-methyloxazolidin)
• EINECS 266-235-8
• Oxazolidine, 3,3’-methylenebis(5-methyl-

Potential cross-reacting/co-reacting substances:
• Formaldehyde
• Other formaldehyde releasers



11-2025

How safe is it?

Hang tight. We're thinking.