Exact Mass: 1041.7996262
Exact Mass Matches: 1041.7996262
Found 54 metabolites which its exact mass value is equals to given mass value 1041.7996262,
within given mass tolerance error 6.4E-8 dalton. Try search metabolite list with more accurate mass tolerance error
1.28E-8 dalton.
2-[3-[(3Z,6Z,9Z,12Z,15Z)-octadeca-3,6,9,12,15-pentaenoyl]oxy-2-[(20Z,23Z,26Z,29Z,32Z,35Z)-octatriaconta-20,23,26,29,32,35-hexaenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[3-[(3Z,6Z,9Z,12Z,15Z)-octadeca-3,6,9,12,15-pentaenoyl]oxy-2-[(20Z,23Z,26Z,29Z,32Z,35Z)-octatriaconta-20,23,26,29,32,35-hexaenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[2-[(11Z,14Z,17Z,20Z,23Z,26Z,29Z)-dotriaconta-11,14,17,20,23,26,29-heptaenoyl]oxy-3-[(12Z,15Z,18Z,21Z)-tetracosa-12,15,18,21-tetraenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[2-[(11Z,14Z,17Z,20Z,23Z,26Z,29Z)-dotriaconta-11,14,17,20,23,26,29-heptaenoyl]oxy-3-[(12Z,15Z,18Z,21Z)-tetracosa-12,15,18,21-tetraenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[3-[(9Z,12Z,15Z)-octadeca-9,12,15-trienoyl]oxy-2-[(14Z,17Z,20Z,23Z,26Z,29Z,32Z,35Z)-octatriaconta-14,17,20,23,26,29,32,35-octaenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[3-[(9Z,12Z,15Z)-octadeca-9,12,15-trienoyl]oxy-2-[(14Z,17Z,20Z,23Z,26Z,29Z,32Z,35Z)-octatriaconta-14,17,20,23,26,29,32,35-octaenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[2-[(9Z,12Z,15Z,18Z,21Z,24Z,27Z,30Z,33Z)-hexatriaconta-9,12,15,18,21,24,27,30,33-nonaenoyl]oxy-3-[(11Z,14Z)-icosa-11,14-dienoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[2-[(9Z,12Z,15Z,18Z,21Z,24Z,27Z,30Z,33Z)-hexatriaconta-9,12,15,18,21,24,27,30,33-nonaenoyl]oxy-3-[(11Z,14Z)-icosa-11,14-dienoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[2-[(15Z,18Z,21Z,24Z,27Z,30Z,33Z)-hexatriaconta-15,18,21,24,27,30,33-heptaenoyl]oxy-3-[(8Z,11Z,14Z,17Z)-icosa-8,11,14,17-tetraenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[2-[(15Z,18Z,21Z,24Z,27Z,30Z,33Z)-hexatriaconta-15,18,21,24,27,30,33-heptaenoyl]oxy-3-[(8Z,11Z,14Z,17Z)-icosa-8,11,14,17-tetraenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[3-[(9Z,12Z)-hexadeca-9,12-dienoyl]oxy-2-[(13Z,16Z,19Z,22Z,25Z,28Z,31Z,34Z,37Z)-tetraconta-13,16,19,22,25,28,31,34,37-nonaenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[3-[(9Z,12Z)-hexadeca-9,12-dienoyl]oxy-2-[(13Z,16Z,19Z,22Z,25Z,28Z,31Z,34Z,37Z)-tetraconta-13,16,19,22,25,28,31,34,37-nonaenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[3-[(12Z,15Z,18Z)-hexacosa-12,15,18-trienoyl]oxy-2-[(6Z,9Z,12Z,15Z,18Z,21Z,24Z,27Z)-triaconta-6,9,12,15,18,21,24,27-octaenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[3-[(12Z,15Z,18Z)-hexacosa-12,15,18-trienoyl]oxy-2-[(6Z,9Z,12Z,15Z,18Z,21Z,24Z,27Z)-triaconta-6,9,12,15,18,21,24,27-octaenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[3-[(10Z,13Z,16Z,19Z)-docosa-10,13,16,19-tetraenoyl]oxy-2-[(13Z,16Z,19Z,22Z,25Z,28Z,31Z)-tetratriaconta-13,16,19,22,25,28,31-heptaenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[3-[(10Z,13Z,16Z,19Z)-docosa-10,13,16,19-tetraenoyl]oxy-2-[(13Z,16Z,19Z,22Z,25Z,28Z,31Z)-tetratriaconta-13,16,19,22,25,28,31-heptaenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[2-[(5Z,8Z,11Z,14Z,17Z,20Z,23Z,26Z,29Z)-dotriaconta-5,8,11,14,17,20,23,26,29-nonaenoyl]oxy-3-[(13Z,16Z)-tetracosa-13,16-dienoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[2-[(5Z,8Z,11Z,14Z,17Z,20Z,23Z,26Z,29Z)-dotriaconta-5,8,11,14,17,20,23,26,29-nonaenoyl]oxy-3-[(13Z,16Z)-tetracosa-13,16-dienoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[3-[(11Z,14Z,17Z,20Z,23Z)-hexacosa-11,14,17,20,23-pentaenoyl]oxy-2-[(12Z,15Z,18Z,21Z,24Z,27Z)-triaconta-12,15,18,21,24,27-hexaenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[3-[(11Z,14Z,17Z,20Z,23Z)-hexacosa-11,14,17,20,23-pentaenoyl]oxy-2-[(12Z,15Z,18Z,21Z,24Z,27Z)-triaconta-12,15,18,21,24,27-hexaenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[2-[(12Z,15Z,18Z,21Z,24Z,27Z,30Z,33Z)-hexatriaconta-12,15,18,21,24,27,30,33-octaenoyl]oxy-3-[(11Z,14Z,17Z)-icosa-11,14,17-trienoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[2-[(12Z,15Z,18Z,21Z,24Z,27Z,30Z,33Z)-hexatriaconta-12,15,18,21,24,27,30,33-octaenoyl]oxy-3-[(11Z,14Z,17Z)-icosa-11,14,17-trienoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[3-[(7Z,10Z,13Z)-hexadeca-7,10,13-trienoyl]oxy-2-[(16Z,19Z,22Z,25Z,28Z,31Z,34Z,37Z)-tetraconta-16,19,22,25,28,31,34,37-octaenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[3-[(7Z,10Z,13Z)-hexadeca-7,10,13-trienoyl]oxy-2-[(16Z,19Z,22Z,25Z,28Z,31Z,34Z,37Z)-tetraconta-16,19,22,25,28,31,34,37-octaenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[3-[(4Z,7Z,10Z,13Z)-hexadeca-4,7,10,13-tetraenoyl]oxy-2-[(19Z,22Z,25Z,28Z,31Z,34Z,37Z)-tetraconta-19,22,25,28,31,34,37-heptaenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[3-[(4Z,7Z,10Z,13Z)-hexadeca-4,7,10,13-tetraenoyl]oxy-2-[(19Z,22Z,25Z,28Z,31Z,34Z,37Z)-tetraconta-19,22,25,28,31,34,37-heptaenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[3-[(6Z,9Z,12Z,15Z)-octadeca-6,9,12,15-tetraenoyl]oxy-2-[(17Z,20Z,23Z,26Z,29Z,32Z,35Z)-octatriaconta-17,20,23,26,29,32,35-heptaenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[3-[(6Z,9Z,12Z,15Z)-octadeca-6,9,12,15-tetraenoyl]oxy-2-[(17Z,20Z,23Z,26Z,29Z,32Z,35Z)-octatriaconta-17,20,23,26,29,32,35-heptaenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[3-[(7Z,10Z,13Z,16Z,19Z)-docosa-7,10,13,16,19-pentaenoyl]oxy-2-[(16Z,19Z,22Z,25Z,28Z,31Z)-tetratriaconta-16,19,22,25,28,31-hexaenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[3-[(7Z,10Z,13Z,16Z,19Z)-docosa-7,10,13,16,19-pentaenoyl]oxy-2-[(16Z,19Z,22Z,25Z,28Z,31Z)-tetratriaconta-16,19,22,25,28,31-hexaenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[3-[(14Z,17Z,20Z,23Z)-hexacosa-14,17,20,23-tetraenoyl]oxy-2-[(9Z,12Z,15Z,18Z,21Z,24Z,27Z)-triaconta-9,12,15,18,21,24,27-heptaenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[3-[(14Z,17Z,20Z,23Z)-hexacosa-14,17,20,23-tetraenoyl]oxy-2-[(9Z,12Z,15Z,18Z,21Z,24Z,27Z)-triaconta-9,12,15,18,21,24,27-heptaenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[2-[(8Z,11Z,14Z,17Z,20Z,23Z)-hexacosa-8,11,14,17,20,23-hexaenoyl]oxy-3-[(15Z,18Z,21Z,24Z,27Z)-triaconta-15,18,21,24,27-pentaenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[2-[(8Z,11Z,14Z,17Z,20Z,23Z)-hexacosa-8,11,14,17,20,23-hexaenoyl]oxy-3-[(15Z,18Z,21Z,24Z,27Z)-triaconta-15,18,21,24,27-pentaenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[3-[(9Z,12Z)-octadeca-9,12-dienoyl]oxy-2-[(11Z,14Z,17Z,20Z,23Z,26Z,29Z,32Z,35Z)-octatriaconta-11,14,17,20,23,26,29,32,35-nonaenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[3-[(9Z,12Z)-octadeca-9,12-dienoyl]oxy-2-[(11Z,14Z,17Z,20Z,23Z,26Z,29Z,32Z,35Z)-octatriaconta-11,14,17,20,23,26,29,32,35-nonaenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[3-[(10Z,13Z,16Z)-docosa-10,13,16-trienoyl]oxy-2-[(10Z,13Z,16Z,19Z,22Z,25Z,28Z,31Z)-tetratriaconta-10,13,16,19,22,25,28,31-octaenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[3-[(10Z,13Z,16Z)-docosa-10,13,16-trienoyl]oxy-2-[(10Z,13Z,16Z,19Z,22Z,25Z,28Z,31Z)-tetratriaconta-10,13,16,19,22,25,28,31-octaenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[2-[(5Z,8Z,11Z,14Z,17Z,20Z,23Z)-hexacosa-5,8,11,14,17,20,23-heptaenoyl]oxy-3-[(18Z,21Z,24Z,27Z)-triaconta-18,21,24,27-tetraenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[2-[(5Z,8Z,11Z,14Z,17Z,20Z,23Z)-hexacosa-5,8,11,14,17,20,23-heptaenoyl]oxy-3-[(18Z,21Z,24Z,27Z)-triaconta-18,21,24,27-tetraenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[3-[(17Z,20Z,23Z,26Z,29Z)-dotriaconta-17,20,23,26,29-pentaenoyl]oxy-2-[(6Z,9Z,12Z,15Z,18Z,21Z)-tetracosa-6,9,12,15,18,21-hexaenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[3-[(17Z,20Z,23Z,26Z,29Z)-dotriaconta-17,20,23,26,29-pentaenoyl]oxy-2-[(6Z,9Z,12Z,15Z,18Z,21Z)-tetracosa-6,9,12,15,18,21-hexaenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[2-[(4Z,7Z,10Z,13Z,16Z,19Z)-docosa-4,7,10,13,16,19-hexaenoyl]oxy-3-[(19Z,22Z,25Z,28Z,31Z)-tetratriaconta-19,22,25,28,31-pentaenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[2-[(4Z,7Z,10Z,13Z,16Z,19Z)-docosa-4,7,10,13,16,19-hexaenoyl]oxy-3-[(19Z,22Z,25Z,28Z,31Z)-tetratriaconta-19,22,25,28,31-pentaenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[2-[(18Z,21Z,24Z,27Z,30Z,33Z)-hexatriaconta-18,21,24,27,30,33-hexaenoyl]oxy-3-[(5Z,8Z,11Z,14Z,17Z)-icosa-5,8,11,14,17-pentaenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[2-[(18Z,21Z,24Z,27Z,30Z,33Z)-hexatriaconta-18,21,24,27,30,33-hexaenoyl]oxy-3-[(5Z,8Z,11Z,14Z,17Z)-icosa-5,8,11,14,17-pentaenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[3-[(13Z,16Z)-docosa-13,16-dienoyl]oxy-2-[(7Z,10Z,13Z,16Z,19Z,22Z,25Z,28Z,31Z)-tetratriaconta-7,10,13,16,19,22,25,28,31-nonaenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[3-[(13Z,16Z)-docosa-13,16-dienoyl]oxy-2-[(7Z,10Z,13Z,16Z,19Z,22Z,25Z,28Z,31Z)-tetratriaconta-7,10,13,16,19,22,25,28,31-nonaenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[2-[(8Z,11Z,14Z,17Z,20Z,23Z,26Z,29Z)-dotriaconta-8,11,14,17,20,23,26,29-octaenoyl]oxy-3-[(10Z,13Z,16Z)-tetracosa-10,13,16-trienoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[2-[(8Z,11Z,14Z,17Z,20Z,23Z,26Z,29Z)-dotriaconta-8,11,14,17,20,23,26,29-octaenoyl]oxy-3-[(10Z,13Z,16Z)-tetracosa-10,13,16-trienoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[2-[(14Z,17Z,20Z,23Z,26Z,29Z)-dotriaconta-14,17,20,23,26,29-hexaenoyl]oxy-3-[(9Z,12Z,15Z,18Z,21Z)-tetracosa-9,12,15,18,21-pentaenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[2-[(14Z,17Z,20Z,23Z,26Z,29Z)-dotriaconta-14,17,20,23,26,29-hexaenoyl]oxy-3-[(9Z,12Z,15Z,18Z,21Z)-tetracosa-9,12,15,18,21-pentaenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[2-[(10Z,13Z,16Z,19Z,22Z,25Z)-octacosa-10,13,16,19,22,25-hexaenoyl]oxy-3-[(13Z,16Z,19Z,22Z,25Z)-octacosa-13,16,19,22,25-pentaenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[2-[(10Z,13Z,16Z,19Z,22Z,25Z)-octacosa-10,13,16,19,22,25-hexaenoyl]oxy-3-[(13Z,16Z,19Z,22Z,25Z)-octacosa-13,16,19,22,25-pentaenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[2-[(7Z,10Z,13Z,16Z,19Z,22Z,25Z)-octacosa-7,10,13,16,19,22,25-heptaenoyl]oxy-3-[(16Z,19Z,22Z,25Z)-octacosa-16,19,22,25-tetraenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[2-[(7Z,10Z,13Z,16Z,19Z,22Z,25Z)-octacosa-7,10,13,16,19,22,25-heptaenoyl]oxy-3-[(16Z,19Z,22Z,25Z)-octacosa-16,19,22,25-tetraenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[3-[(Z)-octadec-9-enoyl]oxy-2-[(8Z,11Z,14Z,17Z,20Z,23Z,26Z,29Z,32Z,35Z)-octatriaconta-8,11,14,17,20,23,26,29,32,35-decaenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[3-[(Z)-octadec-9-enoyl]oxy-2-[(8Z,11Z,14Z,17Z,20Z,23Z,26Z,29Z,32Z,35Z)-octatriaconta-8,11,14,17,20,23,26,29,32,35-decaenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[3-[(Z)-hexadec-9-enoyl]oxy-2-[(10Z,13Z,16Z,19Z,22Z,25Z,28Z,31Z,34Z,37Z)-tetraconta-10,13,16,19,22,25,28,31,34,37-decaenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[3-[(Z)-hexadec-9-enoyl]oxy-2-[(10Z,13Z,16Z,19Z,22Z,25Z,28Z,31Z,34Z,37Z)-tetraconta-10,13,16,19,22,25,28,31,34,37-decaenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[2-[(6Z,9Z,12Z,15Z,18Z,21Z,24Z,27Z,30Z,33Z)-hexatriaconta-6,9,12,15,18,21,24,27,30,33-decaenoyl]oxy-3-[(Z)-icos-11-enoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[2-[(6Z,9Z,12Z,15Z,18Z,21Z,24Z,27Z,30Z,33Z)-hexatriaconta-6,9,12,15,18,21,24,27,30,33-decaenoyl]oxy-3-[(Z)-icos-11-enoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[3-hexadecanoyloxy-2-[(7Z,10Z,13Z,16Z,19Z,22Z,25Z,28Z,31Z,34Z,37Z)-tetraconta-7,10,13,16,19,22,25,28,31,34,37-undecaenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[3-hexadecanoyloxy-2-[(7Z,10Z,13Z,16Z,19Z,22Z,25Z,28Z,31Z,34Z,37Z)-tetraconta-7,10,13,16,19,22,25,28,31,34,37-undecaenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[2-[(12Z,15Z,18Z,21Z,24Z,27Z,30Z,33Z,36Z,39Z)-dotetraconta-12,15,18,21,24,27,30,33,36,39-decaenoyl]oxy-3-[(Z)-tetradec-9-enoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[2-[(12Z,15Z,18Z,21Z,24Z,27Z,30Z,33Z,36Z,39Z)-dotetraconta-12,15,18,21,24,27,30,33,36,39-decaenoyl]oxy-3-[(Z)-tetradec-9-enoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[2-[(9Z,12Z,15Z,18Z,21Z,24Z,27Z,30Z,33Z,36Z,39Z)-dotetraconta-9,12,15,18,21,24,27,30,33,36,39-undecaenoyl]oxy-3-tetradecanoyloxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[2-[(9Z,12Z,15Z,18Z,21Z,24Z,27Z,30Z,33Z,36Z,39Z)-dotetraconta-9,12,15,18,21,24,27,30,33,36,39-undecaenoyl]oxy-3-tetradecanoyloxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[3-dodecanoyloxy-2-[(11Z,14Z,17Z,20Z,23Z,26Z,29Z,32Z,35Z,38Z,41Z)-tetratetraconta-11,14,17,20,23,26,29,32,35,38,41-undecaenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate
2-[3-dodecanoyloxy-2-[(11Z,14Z,17Z,20Z,23Z,26Z,29Z,32Z,35Z,38Z,41Z)-tetratetraconta-11,14,17,20,23,26,29,32,35,38,41-undecaenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate