Health monitoring for 4,4'-Methylene Bis (2Chloroaniline) [moca]


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This guide helps doctors monitor the health of workers exposed to 4,4'-Methylene Bis (2Chloroaniline) [MOCA].  

MOCA (CAS 101-14-4) is a light brown to colourless crystalline solid used mainly as a curing agent for isocyanate-based polyurethane products. 

Examples of work with MOCA include: 

  • dispensing MOCA powder 

  • activity that spatters MOCA in a dry or molten state 

  • manual moulding of semi-set polyurethane products. 

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Managing health and safety
Health monitoring