Dimethoate

Isotopic compositions

Manufacturer	Applied/standard	Isomer ?	Isomer enriched	Commercial Name/Formulation	Purity (%)	δ¹³C (‰)	± (‰)	Measurement method	Reference: DOI Number	Reference Citation
Sigma Aldrich	Standard	Bulk	No		99.6	-39.1	0.3	GC-C-IRMS	10.1016/j.watres.2019.114882	Lian, S., et al, 2H and 13C isotope fractionation analysis of organophosphorus compounds for characterizing transformation reactions in biogas slurry: Potential for anaerobic treatment of contaminated biomass, Water Research 163 (2019) 114882
Sigma Aldrich	Standard	Bulk	No		99.6	-39.2	0.1	GC-C-IRMS	10.1016/j.watres.2019.114882	Lian, et al, 2H and 13C isotope fractionation analysis of organophosphorus compounds for characterizing transformation reactions in biogas slurry: Potential for anaerobic treatment of contaminated biomass, Water Research 163 (2019) 114882
Sigma Aldrich	Standard	Bulk	No	Pestanal	99.6	-41.7	0.3	GC-C-IRMS	10.1016/j.chemosphere.2014.04.037	Wu, L., et al, Compound specific isotope analysis of organophosphorus pesticides, Chemosphere 111 (2014) 458–463
Sigma Aldrich	Standard	Bulk	No	Pestanal	99.6	-42.6	0.1	EA-IRMS	10.1016/j.chemosphere.2014.04.037	Wu, L., et al, Compound specific isotope analysis of organophosphorus pesticides, Chemosphere 111 (2014) 458–463

Pesticide class	Pesticide Type	Chemical formula	#C	#Cl	#N	#H	#O	Other Ele-ments	Molar mass (g/mol)	%C	%Cl	%N	%H	%O	%Others	Water solubility at 20°C (mg/l)	Melting point (°C)	Boiling point (°C)	log Kow	Soil DT 50 lab (days)	Soil DT50 field (days)	Koc (L/kg)
Organophosphorus c.	Insecticide	C5H12NO3PS2	5	0	1	12	3	PS2	229.18	26	0	6.1	5.3	21	41.5	25900	50		0.75	2.5	7.2