Screening assessment on MBMBP phenols: chapter 5

Sources

MBMBP is produced by the reaction of 2-tert-butyl-p-cresol with formaldehyde through a carbonyl condensation.

Although MBMBP is considered a high production volume substance globally (OECD 2004), a survey conducted pursuant to section 71 of CEPA 1999 indicated that during the year 2000, between 10 and 100 tonnes of MBMBP at a concentration higher than 1% were imported into Canada. In addition, companies reported either importing or manufacturing MBMBP at a concentration lower than 1% and in a quantity meeting the reporting threshold of 100 kg. MBMBP was not reported as being manufactured at a concentration higher than 1% in Canada (Canada 2001).