Proton sponge
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20734-58-1CN(C)c1cccc2cccc(N(C)C)c12GJFNRSDCSTVPCJ-UHFFFAOYSA-NN1,N1,N8,N8-tetramethylnaphthalene-1,8-diamine is a member of naphthalenes.
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Warning
H302 (100%): Harmful if swallowed [Warning Acute toxicity, oral]
P261, P264, P264+P265, P270, P271, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P319, P321, P330, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 95 reports by companies from 8 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Chemical: 1,8-Naphthalenediamine, N,N,N',N'-tetramethyl-
1,8-Bis(dimethylamino)-naphthalene: Does not have an individual approval but may be used under an appropriate group standard
BeschreibungSignificant attention in organic chemistry has been given to the so-called proton sponges, which are bi-center nitrogen bases that show spectacularly high basicity and very low nucleophilic character. The first member of this class of compounds 1,8-bis(dimethylamino)naphthalene or DMAN dragged attention due to its unexpectedly high basicity (pKa: DMAN 12.1; 1,8-diaminonaphthalene: 4.6) after its discovery in 1941[1]. It is prepared with an 82% yield from 1,8-diaminonaphthalene, dimethyl sulfate, and sodium hydride.
Verwenden1,8-Bis(dimethylamino)naphthalene, also referred to as protone sponge, is a lipophilic proton trapping agent. 1,8-Bis(dimethylamino)naphthalene is used in the matrix for mass spectroscopy analysis of lipids and fatty acids.
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CHEMBL1574733CHEBI:194986