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Dicyclohexyl phosphorofluoridate
Names
	Other names DCFP; Dicyclohexyl fluorophosphate; TL-941; T-1840
Identifiers
CAS Number	587-15-5;
3D model (JSmol)	Interactive image;
ChemSpider	61793;
PubChem CID	68518;
CompTox Dashboard (EPA)	DTXSID60207396 ;
	InChI InChI=1S/C12H22FO3P/c13-17(14,15-11-7-3-1-4-8-11)16-12-9-5-2-6-10-12/h11-12H,1-10H2 Key: NLPYJEIDHPZCCR-UHFFFAOYSA-N;
	SMILES C1CCC(CC1)OP(=O)(OC2CCCCC2)F;
Properties
Chemical formula	C12H22FO3P
Molar mass	264.277 g·mol−1
Appearance	Colorless liquid
Boiling point	116 °C (241 °F; 389 K)
Hazards
	Occupational safety and health (OHS/OSH):
Main hazards	Extremely toxic
	Lethal dose or concentration (LD, LC):
LC50 (median concentration)	110 mg/m3 (inhalation, mice, 10 minutes); 110 mg/m3 (inhalation, rabbits, 10 minutes); 110 mg/m3 (inhalation, rats, 10 minutes)
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Dicyclohexyl phosphorofluoridate (DCFP),^[1] also known as TL-941 or T-1840,^[2] is an extremely toxic organophosphorus compound with powerful anticholinesterase action. It's a colorless liquid that is extremely resistant to hydrolysis.^[3] DCFP can be produced by reaction of cyclohexanol with phosphoryl dichloride fluoride.^[2]^[3]

References