For public comment: proposal to add condition of use for Benzenamine, 4,4’-methylenebis[2-methyl-6-(1-methylethyl)-

The National Industrial Chemicals Notification and Assessment Scheme (NICNAS) has published a proposal to include a condition of use for to which the importation or manufacture of the following chemical, benzenamine, 4,4’-methylenebis[fusion_builder_container hundred_percent=”yes” overflow=”visible”][fusion_builder_row][fusion_builder_column type=”1_1″ background_position=”left top” background_color=”” border_size=”” border_color=”” border_style=”solid” spacing=”yes” background_image=”” background_repeat=”no-repeat” padding=”” margin_top=”0px” margin_bottom=”0px” class=”” id=”” animation_type=”” animation_speed=”0.3″ animation_direction=”left” hide_on_mobile=”no” center_content=”no” min_height=”none”][2-methyl-6-(1-methylethyl)-, listed on the Australian Inventory of Chemical Substances (AICS) will be subject.


CAS name CAS No. Molecular Formula Conditions of Use
Benzenamine, 4,4’-methylenebis[2-methyl-6-(1-methylethyl)- 16298-38-7 C21H30N2 The chemical should only be used in an industrial workplace under highly controlled conditions


The chemical was assessed for use under tightly controlled conditions as a constituent of an epoxy resin formulation in the production of composite aerospace components. The reason for this proposal is that this chemical would pose a significant risk to human health if it were made available for use by the general public. By placing the proposed condition of use on this chemical, any use of the chemical, other than for use in an industrial workplace under highly controlled conditions, would require the chemical to be assessed by NICNAS as a new chemical prior to import or manufacture. It is an offence to import or manufacture benzenamine, 4,4’-methylenebis[2-methyl-6-(1-methylethyl)- outside the condition of use. A person may give a statement to the Director within 28 days of the publication of this notice giving reasons why the particulars should not be included. Comments on the proposal will be received until 1 March 2016. NICNAS assessed, benzenamine, 4,4’-methylenebis[2-methyl-6-(1-methylethyl)-, Chemical Abstracts Service (CAS) Number 16298-38-7, as a new chemical in 2007 and it was listed on the AICS in 2012. The assessment report (STD/1268) recommended the chemical be:

  • classified under the Approved Criteria for Classifying Hazardous Substances (2004) as R48/22: Harmful – danger of serious damage to health by prolonged exposure if swallowed;
  • subject to the following risk phrases for products/mixtures containing the notified chemical Concentration ≥ 10%: R48/22: Harmful – danger of serious damage to health by prolonged exposure if swallowed; and
  • the subject of health surveillance by employers of any workers involved in its handling.

The report included a recommendation that, when the chemical is added to the AICS, its entry be annotated with the condition of use that “The notified chemical should only be used for industrial purposes under highly controlled conditions”. This recommendation was not implemented at the time. Since the wording “industrial purposes” is potentially confusing given this chemical is an “industrial chemical” under the Act, the term “in an industrial workplace” is proposed. Even when the chemical is proposed to be used in an industrial workplace, the chemical is still subject to secondary notification conditions if that use poses a significant change in risk compared to that assessed in STD/1268. Further information

NICNAS Chemical Gazette, 2 February 2016 ;<ahref=””> ;[/fusion_builder_column][/fusion_builder_row][/fusion_builder_container]