1-Chloro-3,3,3-trifluoropropene (HFO-1233zd) is the unsaturated chlorofluorocarbon with the formula HClC=C(H)CF₃. The compound exists as E- (cis-) and Z- (trans-) isomers. The trans- isomer of this colorless gas is of interest as a more environmentally friendly (lower GWP; global warming potential) refrigerant in air conditioners.^[1] It is prepared by fluorination and dehydrohalogenation reactions starting with 1,1,1,3,3-pentachloropropane.^[2]

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1-Chloro-3,3,3-trifluoropropene

Names
Preferred IUPAC name 1-Chloro-3,3,3-trifluoroprop-1-ene
Other names 1-Chloro-3,3,3-trifluoropropene HCFO-1233zd HCFC-1233zd r-1233zd Solstice zd (Honeywell brand name)
Identifiers
CAS Number	2730-43-0 mixture of E- and Z- isomers 102687-65-0 E-isomer 99728-16-2 Z-isomer
3D model (JSmol)	Interactive image
ChemSpider	10331370 mixture of E- and Z- isomers 4647642 E-isomer 9833033 Z-isomer
ECHA InfoCard	100.215.615
PubChem CID	2779022 mixture of E- and Z- isomers 5709018 E-isomer 11658298 Z-isomer
UNII	4B96DT2BYB Y
CompTox Dashboard (EPA)	DTXSID70950023
InChI mixture of E- and Z- isomers: InChI=1S/C3H2ClF3/c4-2-1-3(5,6)7/h1-2H Key: LDTMPQQAWUMPKS-UHFFFAOYSA-N E-isomer: InChI=1S/C3H2ClF3/c4-2-1-3(5,6)7/h1-2H/b2-1+ Key: LDTMPQQAWUMPKS-OWOJBTEDSA-N Z-isomer: InChI=1S/C3H2ClF3/c4-2-1-3(5,6)7/h1-2H/b2-1- Key: LDTMPQQAWUMPKS-UPHRSURJSA-N
SMILES FC(F)(F)C=CCl
Properties
Chemical formula	C3H2ClF3
Molar mass	130.49 g·mol−1
Appearance	Colorless liquid
Boiling point	39.6 °C (Z) 18.5 °C (E)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

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