Formulation: A solution in methanol
Formal Name: 2-[(dimethoxyphosphinothioyl)thio]-butanedioic acid, 1,4-di(ethyl-1,1,2,2,2-d5) ester
Purity: ≥99% deuterated forms (d1-d10)
Formula Markup: C10H9D10O6PS2
Formula Weight: 340,4
Shelf life (days): 730
CAS Number: 347841-48-9
Notes: Malathion-d10 is intended for use as an internal standard for the quantification of malathion (Item No. 22998) by GC- or LC-MS. Malathion is an organophosphate insecticide that inhibits acetylcholinesterase (AChE; IC50s = 370 and 160 µM for free and immobilized AChE, respectively, from bovine erythrocytes).{37737} It is ovicidal and adulticidal to laboratory colonies of body lice when used at concentrations of 0.001 and 0.05%, respectively.{37738} It is toxic to rats (LD50 = 750 mg/kg) and teratogenic to zebrafish when used at concentrations ranging from 2 to 3 mg/L.{37739,37740} Formulations containing malathion have been used in the treatment of lice.
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