Cholesteryl chloride

Cholesteryl chloride, also called 3-chlorocholest-5-ene or 3β-chlorocholest-5-ene, is an organic chemical, an organochloride derivate cholesterol. It is a liquid crystal material forming clockwise cholesteric liquid crystals. It is a transparent liquid, or a soft crystalline material with melting point around 94-96 °C.

Cholesteryl chloride[1]

Names
IUPAC name (3S,8S,9S,10R,13R,14S,17R)-3-Chloro-10,13-dimethyl-17-[(2R)-6-methylheptan-2-yl]-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthrene
Other names 3-Chlorocholest-5-ene 3β-Chlorocholest-5-ene
Identifiers
CAS Number	910-31-6 Y
3D model (JSmol)	Interactive image Interactive image
ChemSpider	16498751 Y
DrugBank	DB14045
ECHA InfoCard	100.011.823
EC Number	213-004-4
PubChem CID	92850
UNII	39EHZ05V39 Y
CompTox Dashboard (EPA)	DTXSID90883602
InChI InChI=1S/C27H45Cl/c1-18(2)7-6-8-19(3)23-11-12-24-22-10-9-20-17-21(28)13-15-26(20,4)25(22)14-16-27(23,24)5/h9,18-19,21-25H,6-8,10-17H2,1-5H3/t19-,21?,22+,23-,24+,25+,26+,27-/m1/s1 Y Key: OTVRYZXVVMZHHW-FNOPAARDSA-N Y InChI=1/C27H45Cl/c1-18(2)7-6-8-19(3)23-11-12-24-22-10-9-20-17-21(28)13-15-26(20,4)25(22)14-16-27(23,24)5/h9,18-19,21-25H,6-8,10-17H2,1-5H3/t19-,21+,22+,23-,24+,25+,26+,27-/m1/s1 Key: OTVRYZXVVMZHHW-DPAQBDIFBD InChI=1/C27H45Cl/c1-18(2)7-6-8-19(3)23-11-12-24-22-10-9-20-17-21(28)13-15-26(20,4)25(22)14-16-27(23,24)5/h9,18-19,21-25H,6-8,10-17H2,1-5H3/t19-,21?,22+,23-,24+,25+,26+,27-/m1/s1 Key: OTVRYZXVVMZHHW-FNOPAARDBV
SMILES Cl[C@@H]4C/C3=C/C[C@@H]1[C@H](CC[C@]2([C@H]1CC[C@@H]2[C@H](C)CCCC(C)C)C)[C@@]3(C)CC4 CC(C)CCC[C@@H](C)[C@H]4CC[C@@H]3[C@]4(C)CC[C@H]2[C@H]3C\C=C1\CC(Cl)CC[C@@]12C
Properties
Chemical formula	C27H45Cl
Molar mass	405.10
Melting point	94 to 96 °C (201 to 205 °F; 367 to 369 K)
Hazards
S-phrases (outdated)	S22 S24/25
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

It can be used with cholesteryl nonanoate, cholesteryl benzoate, and/or cholesteryl oleyl carbonate in some thermochromic liquid crystals.

It is used in some hair colors, make-ups, and some other cosmetic preparations.[2]

It can be also used as a component of the liquid crystals used for liquid crystal displays.