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Nonhalogenated organophosphorous derivatives

(5ethyl2methyl2oxido1,3,2dioxaphosphinan5yl) methyl methyl methylphosphonate

2,4,6tripropyl1,3,5,2,4,6trioxatriphosphinane 2,4,6trioxide

3,9dimethyl2,4,8,10tetraoxa3,9diphosphaspiro[5.5] undecane 3,9dioxide

Diethyl ethylphosphonate

Dimethyl methylphosphonate

Dimethyl propylphosphonate

Methylphosphonic acid

Separate chemically defined nonhalogenated organophosphorous derivatives, n.e.s.

Salt of methylphosphonic acid and (aminoiminomethyl)urea (1: 1)