Naphthalene Sulfonic Acids and Salts (NSAs) Group
These substances were identified for action under the Chemicals Management Plan (CMP). This screening assessment focuses on 6 of 7 substances referred to collectively as the Naphthalene Sulfonic Acids and Salts (NSAs) Group.
|Substance group||CAS RN||Acronym||DSL name||Draft screening assessment||Proposed conclusion on section 64 criteria||Follow-up activities|
|NSAs Group||1321-69-3Footnote a||NaNSA||Naphthalenesulfonic acid, sodium salt||HTML||Does not meet||None planned at this time|
|25322-17-2Footnote a, Footnote c||DNNSA||Naphthalenesulfonic acid, dinonyl-|
|25619-56-1Footnote a, Footnote c||BaDNNSA||Naphthalenesulfonic acid, dinonyl-, barium salt|
|57855-77-3Footnote a, Footnote b||CaDNNSA||Naphthalenesulfonic acid, dinonyl-, calcium salt|
|60223-95-2Footnote a, Footnote c||DNNDSA||Naphthalenedisulfonic acid, dinonyl-|
|68425-61-6Footnote a||CDINSA||Naphthalenesulfonic acid, bis(1-methylethyl)-, compd. with cyclohexanamine (1:1)|
|July 2021||Anticipated publication of the final screening assessment.|
|July 4, 2020||Publication and start of 60-day public comment period on the draft screening assessment. The related notice was published in the Canada Gazette, Part I: Vol. 154, No. 27.|
One other substance was identified as being a part of the NSAs Group at the outset of the third phase of the CMP. This substance was subsequently determined to be of low concern to both human health and the environment, through other approaches. Conclusions for the substance with CAS RN 25638-17-9 are provided in the Final Screening Assessment for the Rapid Screening of Substances with Limited General Population Exposure.
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