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      <marc:subfield code="a">Assessment : </marc:subfield>
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      <marc:subfield code="a">Piperazine</marc:subfield>
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      <marc:subfield code="a">"May 2024."</marc:subfield>
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      <marc:subfield code="a">Issued also in French under title: Évaluation : pipérazine.</marc:subfield>
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      <marc:subfield code="a">"Chemical Abstracts Service Registry Number 110-85-0."</marc:subfield>
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      <marc:subfield code="a">Issued by Environment and Climate Change Canada, Health Canada.</marc:subfield>
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      <marc:subfield code="a">Includes bibliographical references (pages 12-14).</marc:subfield>
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      <marc:subfield code="a">"Pursuant to section 68 of the Canadian Environmental Protection Act, 1999 (CEPA), the Minister of the Environment and the Minister of Health have conducted an assessment of piperazine. The Chemical Abstracts Service Registry (CAS RN for piperazine is 110-85-0"--Synopsis, page i.</marc:subfield>
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      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2024/eccc/En84-373-2024-eng.pdf</marc:subfield>
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