Cholesteryl oleyl carbonate (COC) is an organic chemical, an carbonate ester of cholesterol and oleyl alcohol with carbonic acid. It is a liquid crystal material forming cholesteric liquid crystals with helical structure. It is a transparent liquid, or a soft crystalline material with melting point around 20 °C. It can be used with cholesteryl nonanoate and cholesteryl benzoate in some thermochromic liquid crystals.

CAS：17110-51-9
中文别名：(Z)-胆甾-5-烯-3-醇(3β)-9-十八碳烯基碳酸酯;胆固醇油烯基碳酸酯;胆固醇油酰基碳酸脂;胆甾醇油酰基碳酸酯;液晶COC;胆甾醇油醇碳酸酯;
英文别名：cholesteric-oleyl-carbonate;Cholesterol Oleyl Carbonate;COC;5-CHOLESTEN-3BETA-OL 3-OLEYLCARBONATE;Oleyl Carbonic Acid Cholesterol Ester;cholresteryloleoylcarbonate;chlesteryl oleyl carbonate;CHOLESTEROL OLEYL CARBONATE;Cholesteryloleylcarbanate;Cholesterol 9-octadecenyl carbonate;Cholesteryl oleoyl carbonate;Oleyl cholesteryl carbonate;
分子式：C46H80O3
分子量：681.126
精确质量：680.611
Psa：35.53
Logp：14.5871

PubChem号：24849095
EINECS号：241-179-7
MDL号：MFCD00003634

外观与性状：白色至淡黄色蜡质液体
密度：0.97 g/cm3
沸点：712.8ºC at 760 mmHg
熔点：20 °C
闪点：>230°F
折射率：1.51
稳定性：Stable at room temperature in closed containers under normal storage and handling conditions.
储存条件：Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
蒸汽压：3.65E-20mmHg at 25°C

安全说明：S24/25
WGK Germany：3