Exact Mass: 646.6052338

Exact Mass Matches: 646.6052338

Found 203 metabolites which its exact mass value is equals to given mass value 646.6052338, within given mass tolerance error 0.05 dalton. Try search metabolite list with more accurate mass tolerance error 0.01 dalton.

CE(18:3(9Z,12Z,15Z))

(2R,5S,15R)-2,15-dimethyl-14-[(2R)-6-methylheptan-2-yl]tetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadec-7-en-5-yl (9Z,12Z,15Z)-octadeca-9,12,15-trienoate

C45H74O2 (646.5688504)

CE(18:3(9Z,12Z,15Z)) is a cholesterol fatty acid ester or simply a cholesterol ester (CE). Cholesterol esters are cholesterol molecules with long-chain fatty acids linked to the hydroxyl group. They are much less polar than free cholesterol and appear to be the preferred form for transport in plasma and for storage. Cholesterol esters do not contribute to membranes but are packed into intracellular lipid particles or lipoprotein particles. Because of the mechanism of synthesis, plasma cholesterol esters tend to contain relatively high proportions of C18 fatty acids. Cholesterol esters are major constituents of the adrenal glands and they also accumulate in the fatty lesions of atherosclerotic plaques. Cholesterol esters are also major constituents of the lipoprotein particles carried in blood (HDL, LDL, VLDL). The cholesterol esters in high-density lipoproteins (HDL) are synthesized largely by transfer of fatty acids to cholesterol from position sn-2 (or C-2) of phosphatidylcholine catalyzed by the enzyme lecithin cholesterol acyl transferase (LCAT). The enzyme also promotes the transfer of cholesterol from cells to HDL. As cholesterol esters accumulate in the lipoprotein core, cholesterol is removed from its surface thus promoting the flow of cholesterol from cell membranes into HDL. This in turn leads to morphological changes in HDL, which grow and become spherical. Subsequently, cholesterol esters are transferred to the other lipoprotein fractions LDL and VLDL, a reaction catalyzed by cholesteryl ester transfer protein. Another enzyme, acyl-CoA:cholesterol acyltransferase (ACAT) synthesizes cholesterol esters from CoA esters of fatty acids and cholesterol. Cholesterol ester hydrolases liberate cholesterol and free fatty acids when required for membrane and lipoprotein formation, and they also provide cholesterol for hormone synthesis in adrenal cells. [HMDB] CE(18:3(9Z,12Z,15Z)) is a cholesterol fatty acid ester or simply a cholesterol ester (CE). Cholesterol esters are cholesterol molecules with long-chain fatty acids linked to the hydroxyl group. They are much less polar than free cholesterol and appear to be the preferred form for transport in plasma and for storage. Cholesterol esters do not contribute to membranes but are packed into intracellular lipid particles or lipoprotein particles. Because of the mechanism of synthesis, plasma cholesterol esters tend to contain relatively high proportions of C18 fatty acids. Cholesterol esters are major constituents of the adrenal glands and they also accumulate in the fatty lesions of atherosclerotic plaques. Cholesterol esters are also major constituents of the lipoprotein particles carried in blood (HDL, LDL, VLDL). The cholesterol esters in high-density lipoproteins (HDL) are synthesized largely by transfer of fatty acids to cholesterol from position sn-2 (or C-2) of phosphatidylcholine catalyzed by the enzyme lecithin cholesterol acyl transferase (LCAT). The enzyme also promotes the transfer of cholesterol from cells to HDL. As cholesterol esters accumulate in the lipoprotein core, cholesterol is removed from its surface thus promoting the flow of cholesterol from cell membranes into HDL. This in turn leads to morphological changes in HDL, which grow and become spherical. Subsequently, cholesterol esters are transferred to the other lipoprotein fractions LDL and VLDL, a reaction catalyzed by cholesteryl ester transfer protein. Another enzyme, acyl-CoA:cholesterol acyltransferase (ACAT) synthesizes cholesterol esters from CoA esters of fatty acids and cholesterol. Cholesterol ester hydrolases liberate cholesterol and free fatty acids when required for membrane and lipoprotein formation, and they also provide cholesterol for hormone synthesis in adrenal cells.

CE(18:3(6Z,9Z,12Z))

(2R,5S,15R)-2,15-Dimethyl-14-[(2R)-6-methylheptan-2-yl]tetracyclo[8.7.0.0²,⁷.0¹¹,¹⁵]heptadec-7-en-5-yl (6Z,9Z,12Z)-octadeca-6,9,12-trienoic acid

C45H74O2 (646.5688504)

CE(18:3(6Z,9Z,12Z)) is a cholesterol fatty acid ester or simply a cholesterol ester (CE). Cholesterol esters are cholesterol molecules with long-chain fatty acids linked to the hydroxyl group. They are much less polar than free cholesterol and appear to be the preferred form for transport in plasma and for storage. Cholesterol esters do not contribute to membranes but are packed into intracellular lipid particles or lipoprotein particles. Because of the mechanism of synthesis, plasma cholesterol esters tend to contain relatively high proportions of C18 fatty acids. Cholesterol esters are major constituents of the adrenal glands and they also accumulate in the fatty lesions of atherosclerotic plaques. Cholesterol esters are also major constituents of the lipoprotein particles carried in blood (HDL, LDL, VLDL). The cholesterol esters in high-density lipoproteins (HDL) are synthesized largely by transfer of fatty acids to cholesterol from position sn-2 (or C-2) of phosphatidylcholine catalyzed by the enzyme lecithin cholesterol acyl transferase (LCAT). The enzyme also promotes the transfer of cholesterol from cells to HDL. As cholesterol esters accumulate in the lipoprotein core, cholesterol is removed from its surface thus promoting the flow of cholesterol from cell membranes into HDL. This in turn leads to morphological changes in HDL, which grow and become spherical. Subsequently, cholesterol esters are transferred to the other lipoprotein fractions LDL and VLDL, a reaction catalyzed by cholesteryl ester transfer protein. Another enzyme, acyl-CoA:cholesterol acyltransferase (ACAT) synthesizes cholesterol esters from CoA esters of fatty acids and cholesterol. Cholesterol ester hydrolases liberate cholesterol and free fatty acids when required for membrane and lipoprotein formation, and they also provide cholesterol for hormone synthesis in adrenal cells. [HMDB] CE(18:3(6Z,9Z,12Z)) is a cholesterol fatty acid ester or simply a cholesterol ester (CE). Cholesterol esters are cholesterol molecules with long-chain fatty acids linked to the hydroxyl group. They are much less polar than free cholesterol and appear to be the preferred form for transport in plasma and for storage. Cholesterol esters do not contribute to membranes but are packed into intracellular lipid particles or lipoprotein particles. Because of the mechanism of synthesis, plasma cholesterol esters tend to contain relatively high proportions of C18 fatty acids. Cholesterol esters are major constituents of the adrenal glands and they also accumulate in the fatty lesions of atherosclerotic plaques. Cholesterol esters are also major constituents of the lipoprotein particles carried in blood (HDL, LDL, VLDL). The cholesterol esters in high-density lipoproteins (HDL) are synthesized largely by transfer of fatty acids to cholesterol from position sn-2 (or C-2) of phosphatidylcholine catalyzed by the enzyme lecithin cholesterol acyl transferase (LCAT). The enzyme also promotes the transfer of cholesterol from cells to HDL. As cholesterol esters accumulate in the lipoprotein core, cholesterol is removed from its surface thus promoting the flow of cholesterol from cell membranes into HDL. This in turn leads to morphological changes in HDL, which grow and become spherical. Subsequently, cholesterol esters are transferred to the other lipoprotein fractions LDL and VLDL, a reaction catalyzed by cholesteryl ester transfer protein. Another enzyme, acyl-CoA:cholesterol acyltransferase (ACAT) synthesizes cholesterol esters from CoA esters of fatty acids and cholesterol. Cholesterol ester hydrolases liberate cholesterol and free fatty acids when required for membrane and lipoprotein formation, and they also provide cholesterol for hormone synthesis in adrenal cells.

moretenyl palmitate

C46H78O (646.6052338)

C45H74O2

C45H74O2 (646.5688504)

(all-E)-3,7,11,15,19,23,27,31,35-nonamethyl-hexatriaconta-2,6,10,14,18,22,26,30,33-nonaene-1,35-diol

C45H74O2 (646.5688504)

(all-E)-3,7,11,15,19,23,27,31,35-nonamethyl-hexatriaconta-2,6,10,14,18,22,26,30,35-nonaene-1,34-diol

C45H74O2 (646.5688504)

16:2 Stigmasteryl ester

Stigmast-5,22E-dien-3beta-yl (7Z,10Z-hexadecadienoate)

C45H74O2 (646.5688504)

16:3 Sitosteryl ester

Stigmast-5-en-3beta-yl (7Z,10Z,13Z-hexadecatrienoate)

C45H74O2 (646.5688504)

CE(18:3)

Cholest 5 en 3beta yl (Z,Z,Z) octadeca 9,12,15 trien 1 Oate

C45H74O2 (646.5688504)

Cyclic archaeol with two cyclopentane rings

C43H82O3 (646.6263622)

Cholesteryl linolenate

9,12,15-Octadecatrienoic acid 3beta-cholesteryl ester

C45H74O2 (646.5688504)

A cholesterol ester obtained by the formal condensation of cholesterol with (9Z,12Z,15Z)-octadeca-9,12,15-trienoic acid.

CE 18:3

cholest-5-en-3beta-yl (9Z,12Z,15Z-octadecatrienoate)

C45H74O2 (646.5688504)

16:2 Stigmasterol ester

Stigmast-5,22E-dien-3beta-yl (7Z,10Z-hexadecadienoate)

C45H74O2 (646.5688504)

16:3 Sitosterol ester

Stigmast-5-en-3beta-yl (7Z,10Z,13Z-hexadecatrienoate)

C45H74O2 (646.5688504)

3,7,11,15,19,23,27,31,35-Nonamethyl-2,6,10,1418,22,26,30,35-hexatriacontanonaene-1,34-diol

C45H74O2 (646.5688504)

(all-E)-3,7,11,15,19,23,27,31,35-Nonamethyl-2,6,10,14,18,22,26,30,33-hexa-triacontanonene-1,35-diol

C45H74O2 (646.5688504)

CE(18:3(6Z,9Z,12Z))

C45H74O2 (646.5688504)

Cholesteryl octadecatrienoate

C45H74O2 (646.5688504)

A cholesterol ester in which the acyl group contains 18 carbons and 3 double bonds.

bibrocathol

C6H2BiBr4O3 (646.6541262)

S - Sensory organs > S01 - Ophthalmologicals > S01A - Antiinfectives C254 - Anti-Infective Agent > C28394 - Topical Anti-Infective Agent C254 - Anti-Infective Agent > C52588 - Antibacterial Agent

Aetokthonotoxin

C17H6Br5N3 (646.6478496000001)

A bromoindole that is 2,3,5-tribromo-1H-indole which is substituted by a 5,7-dibromo-3-cyano-1H-indol-2-yl group at position 1. It is a biindole alkaloid isolated from the cyanobacterium Aetokthonos hydrillicola and causes vacuolar myelinopathy in bald eagles.