TH-dimer

TH-dimer, also called tetrahydromethylcyclopentadiene dimer^[1] or RJ-4, is a synthetic jet fuel used in jet engines for missiles. RJ-4 was originally developed for the ramjet engine on RIM-8 Talos naval surface-to-air missile.^[2]

TH-dimer

Names
Other names Tetrahydromethylcyclopentadiene dimer; Tetrahydrodimethyldicyclopentadiene; THDMDCP; RJ-4; RJ4
Identifiers
CAS Number	30496-78-7 Y
3D model (JSmol)	Interactive image
ChemSpider	108605
EC Number	250-218-7
PubChem CID	121721
InChI InChI=1S/C12H20/c1-7-8(2)12-6-11(7)9-4-3-5-10(9)12/h7-12H,3-6H2,1-2H3 Key: XGTOHMPHWPGRTK-UHFFFAOYSA-N
SMILES CC1C(C2CC1C3C2CCC3)C
Properties
Chemical formula	C12H20
Molar mass	164.292 g·mol−1
Density	0.915 g/cm3
Hazards
Flash point	60 °C (140 °F; 333 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Y verify (what is YN ?) Infobox references

The fuel is non-volatile, so it is safe to use on ships or submarines. It has a high flash point minimum of 60 °C (140 °F).^[3]

Chemically, TH-dimer is a mixture of isomeric saturated hydrocarbons derived from hydrogenation of the dimer of methylcyclopentadiene.^[4]