Dicyclohexyl phosphorofluoridate

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]

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

See also

• Diisopropyl phosphorofluoridate (DFP)