Exact Mass: 641.3577012

Proansamycin X

A 26-membered macrocylic polyketide incorporating a quinone ring as well as lactam and enone functionality. An intermediate in the biosynthesis of rifamycin.

(3a,5b,7a,12a)-24-[(carboxymethyl)amino]-1,12-dihydroxy-24-oxocholan-3-yl-b-D-Glucopyranosiduronic acid

(2S,3S,4S,5R,6R)-6-{[(1S,2S,5R,7R,9R,10R,11S,15R,16S)-14-[(2R)-4-[(carboxymethyl)carbamoyl]butan-2-yl]-9,16-dihydroxy-2,15-dimethyltetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadecan-5-yl]oxy}-3,4,5-trihydroxyoxane-2-carboxylic acid

b-D-GlucopyranosIduronic acid, (3a,5b,7a,12a)-24-[(carboxymethyl)amino]-1,12-dihydroxy-24-oxocholan-3-yl is found in the urine of leprosy patients. It is red in color similar to clofazimine. It is considered more polar than the parent drug. It is formed by hydrolytic deamination followed by glucuronidation.(PMID: 6120809).

Taxine

2,13-bis(acetyloxy)-7,10-dihydroxy-8,12,15,15-tetramethyl-9-oxotricyclo[9.3.1.1⁴,⁸]hexadeca-3,11-dien-5-yl 3-(dimethylamino)-2-hydroxy-3-phenylpropanoate

(2R)-2-[[(2R)-2-amino-3-(1-methoxycarbonylindol-3-yl)propanoyl]-[(2S)-2-[[(2R,6S)-2,6-dimethylpiperidine-1-carbonyl]amino]-4,4-dimethylpentanoyl]amino]hexanoic acid

C34H51N5O7 (641.3788)

PC(2:0/22:6(5Z,8E,10Z,13Z,15E,19Z)-2OH(7S, 17S))

(2-{[(2R)-3-(acetyloxy)-2-{[(5Z,7R,8E,10Z,13Z,15E,17S,19Z)-7,17-dihydroxydocosa-5,8,10,13,15,19-hexaenoyl]oxy}propyl phosphono]oxy}ethyl)trimethylazanium

PC(2:0/22:6(5Z,8E,10Z,13Z,15E,19Z)-2OH(7S, 17S)) is an oxidized phosphatidylcholine (PC or GPCho). Oxidized phosphatidylcholines are glycerophospholipids in which a phosphorylcholine moiety occupies a glycerol substitution site and at least one of the fatty acyl chains has undergone oxidation. As all oxidized lipids, oxidized phosphatidylcholines belong to a group of biomolecules that have a role as signaling molecules. The biosynthesis of oxidized lipids is mediated by several enzymatic families, including cyclooxygenases (COX), lipoxygenases (LOX) and cytochrome P450s (CYP). Non-enzymatically oxidized lipids are produced by uncontrolled oxidation through free radicals and are considered harmful to human health (PMID: 33329396). As is the case with diacylglycerols, glycerophosphocholines can have many different combinations of fatty acids of varying lengths, saturation and degrees of oxidation attached at the C-1 and C-2 positions. PC(2:0/22:6(5Z,8E,10Z,13Z,15E,19Z)-2OH(7S, 17S)), in particular, consists of one chain of one acetyl at the C-1 position and one chain of Resolvin D5 at the C-2 position. Phospholipids are ubiquitous in nature and are key components of the lipid bilayer of cells, as well as being involved in metabolism and signaling. Similarly to what occurs with phospholipids, the fatty acid distribution at the C-1 and C-2 positions of glycerol within oxidized phospholipids is continually in flux, owing to phospholipid degradation and the continuous phospholipid remodeling that occurs while these molecules are in membranes. Oxidized PCs can be synthesized via three different routes. In one route, the oxidized PC is synthetized de novo following the same mechanisms as for PCs but incorporating oxidized acyl chains (PMID: 33329396). An alternative is the transacylation of one of the non-oxidated acyl chains with an oxidated acylCoA (PMID: 33329396). The third pathway results from the oxidation of the acyl chain while still attached to the PC backbone, mainely through the action of LOX (PMID: 33329396).

PC(22:6(5Z,8E,10Z,13Z,15E,19Z)-2OH(7S, 17S)/2:0)

(2-{[(2R)-2-(acetyloxy)-3-{[(5Z,7S,8E,10Z,13Z,15E,17R,19Z)-7,17-dihydroxydocosa-5,8,10,13,15,19-hexaenoyl]oxy}propyl phosphono]oxy}ethyl)trimethylazanium

PC(22:6(5Z,8E,10Z,13Z,15E,19Z)-2OH(7S, 17S)/2:0) is an oxidized phosphatidylcholine (PC or GPCho). Oxidized phosphatidylcholines are glycerophospholipids in which a phosphorylcholine moiety occupies a glycerol substitution site and at least one of the fatty acyl chains has undergone oxidation. As all oxidized lipids, oxidized phosphatidylcholines belong to a group of biomolecules that have a role as signaling molecules. The biosynthesis of oxidized lipids is mediated by several enzymatic families, including cyclooxygenases (COX), lipoxygenases (LOX) and cytochrome P450s (CYP). Non-enzymatically oxidized lipids are produced by uncontrolled oxidation through free radicals and are considered harmful to human health (PMID: 33329396). As is the case with diacylglycerols, glycerophosphocholines can have many different combinations of fatty acids of varying lengths, saturation and degrees of oxidation attached at the C-1 and C-2 positions. PC(22:6(5Z,8E,10Z,13Z,15E,19Z)-2OH(7S, 17S)/2:0), in particular, consists of one chain of one Resolvin D5 at the C-1 position and one chain of acetyl at the C-2 position. Phospholipids are ubiquitous in nature and are key components of the lipid bilayer of cells, as well as being involved in metabolism and signaling. Similarly to what occurs with phospholipids, the fatty acid distribution at the C-1 and C-2 positions of glycerol within oxidized phospholipids is continually in flux, owing to phospholipid degradation and the continuous phospholipid remodeling that occurs while these molecules are in membranes. Oxidized PCs can be synthesized via three different routes. In one route, the oxidized PC is synthetized de novo following the same mechanisms as for PCs but incorporating oxidized acyl chains (PMID: 33329396). An alternative is the transacylation of one of the non-oxidated acyl chains with an oxidated acylCoA (PMID: 33329396). The third pathway results from the oxidation of the acyl chain while still attached to the PC backbone, mainely through the action of LOX (PMID: 33329396).

PC(2:0/22:6(4Z,7Z,11E,13Z,15E,19Z)-2OH(10S,17))

(2-{[(2R)-3-(acetyloxy)-2-{[(4Z,7Z,10R,11E,13Z,15E,17S,19Z)-10,17-dihydroxydocosa-4,7,11,13,15,19-hexaenoyl]oxy}propyl phosphono]oxy}ethyl)trimethylazanium

PC(2:0/22:6(4Z,7Z,11E,13Z,15E,19Z)-2OH(10S,17)) is an oxidized phosphatidylcholine (PC or GPCho). Oxidized phosphatidylcholines are glycerophospholipids in which a phosphorylcholine moiety occupies a glycerol substitution site and at least one of the fatty acyl chains has undergone oxidation. As all oxidized lipids, oxidized phosphatidylcholines belong to a group of biomolecules that have a role as signaling molecules. The biosynthesis of oxidized lipids is mediated by several enzymatic families, including cyclooxygenases (COX), lipoxygenases (LOX) and cytochrome P450s (CYP). Non-enzymatically oxidized lipids are produced by uncontrolled oxidation through free radicals and are considered harmful to human health (PMID: 33329396). As is the case with diacylglycerols, glycerophosphocholines can have many different combinations of fatty acids of varying lengths, saturation and degrees of oxidation attached at the C-1 and C-2 positions. PC(2:0/22:6(4Z,7Z,11E,13Z,15E,19Z)-2OH(10S,17)), in particular, consists of one chain of one acetyl at the C-1 position and one chain of Protectin DX at the C-2 position. Phospholipids are ubiquitous in nature and are key components of the lipid bilayer of cells, as well as being involved in metabolism and signaling. Similarly to what occurs with phospholipids, the fatty acid distribution at the C-1 and C-2 positions of glycerol within oxidized phospholipids is continually in flux, owing to phospholipid degradation and the continuous phospholipid remodeling that occurs while these molecules are in membranes. Oxidized PCs can be synthesized via three different routes. In one route, the oxidized PC is synthetized de novo following the same mechanisms as for PCs but incorporating oxidized acyl chains (PMID: 33329396). An alternative is the transacylation of one of the non-oxidated acyl chains with an oxidated acylCoA (PMID: 33329396). The third pathway results from the oxidation of the acyl chain while still attached to the PC backbone, mainely through the action of LOX (PMID: 33329396).

PC(22:6(4Z,7Z,11E,13Z,15E,19Z)-2OH(10S,17)/2:0)

(2-{[(2R)-2-(acetyloxy)-3-{[(4Z,7Z,10S,11E,13Z,15E,17R,19Z)-10,17-dihydroxydocosa-4,7,11,13,15,19-hexaenoyl]oxy}propyl phosphono]oxy}ethyl)trimethylazanium

PC(22:6(4Z,7Z,11E,13Z,15E,19Z)-2OH(10S,17)/2:0) is an oxidized phosphatidylcholine (PC or GPCho). Oxidized phosphatidylcholines are glycerophospholipids in which a phosphorylcholine moiety occupies a glycerol substitution site and at least one of the fatty acyl chains has undergone oxidation. As all oxidized lipids, oxidized phosphatidylcholines belong to a group of biomolecules that have a role as signaling molecules. The biosynthesis of oxidized lipids is mediated by several enzymatic families, including cyclooxygenases (COX), lipoxygenases (LOX) and cytochrome P450s (CYP). Non-enzymatically oxidized lipids are produced by uncontrolled oxidation through free radicals and are considered harmful to human health (PMID: 33329396). As is the case with diacylglycerols, glycerophosphocholines can have many different combinations of fatty acids of varying lengths, saturation and degrees of oxidation attached at the C-1 and C-2 positions. PC(22:6(4Z,7Z,11E,13Z,15E,19Z)-2OH(10S,17)/2:0), in particular, consists of one chain of one Protectin DX at the C-1 position and one chain of acetyl at the C-2 position. Phospholipids are ubiquitous in nature and are key components of the lipid bilayer of cells, as well as being involved in metabolism and signaling. Similarly to what occurs with phospholipids, the fatty acid distribution at the C-1 and C-2 positions of glycerol within oxidized phospholipids is continually in flux, owing to phospholipid degradation and the continuous phospholipid remodeling that occurs while these molecules are in membranes. Oxidized PCs can be synthesized via three different routes. In one route, the oxidized PC is synthetized de novo following the same mechanisms as for PCs but incorporating oxidized acyl chains (PMID: 33329396). An alternative is the transacylation of one of the non-oxidated acyl chains with an oxidated acylCoA (PMID: 33329396). The third pathway results from the oxidation of the acyl chain while still attached to the PC backbone, mainely through the action of LOX (PMID: 33329396).

Cyclosquamosin A

15-benzyl-18-(hydroxymethyl)-3-(propan-2-yl)-1,4,10,13,16,19,22-heptaazatricyclo[22.3.0.0⁶,¹⁰]heptacosane-2,5,11,14,17,20,23-heptone

C31H43N7O8 (641.3173)

Constituent of the seeds of Annona squamosa (sugar apple). Cyclosquamosin A is found in fruits.

MKNHL

Met-Lys-Asn-His-Leu

C27H47N9O7S (641.3319)

(3a,5b,7a,12a)-24-[(carboxymethyl)amino]-1,12-dihydroxy-24-oxocholan-3-yl-b-D-Glucopyranosiduronic acid

(3a,5b,7a,12a)-24-[(carboxymethyl)amino]-1,12-dihydroxy-24-oxocholan-3-yl-b-D-Glucopyranosiduronic a

Glycocholic acid 3-glucuronide

N-(3alpha,7alpha,12alpha-trihydroxy-5beta-cholan-24-oyl)-glycine 3-D-glucuronide

Nitro-Astaxanthin

(15Z)-15-Nitro-3,3-dihydroxy-beta,beta-carotene-4,4-dione

C40H51NO6 (641.3716)

Yttrium-2,2,6,6-tetramethylheptanedionate

C33H60O6Y (641.3448)

Reversin 121

C34H47N3O9 (641.3312)

Reversin 121 is a P-glycoprotein inhibitor. Reversin 121 increases the ATPase activity of MDR1. Reversin 121 reverses P-glycoprotein-mediated multidrug resistance. Reversin 121 can be used in the research of cancers[1][2].

Steviolbioside(1-)

C32H49O13- (641.3173)

A monocarboxylic acid anion resulting from the deprotonation of the carboxy group of steviolbioside. The major species at pH 7.3.

(7E,9S,10S,11R,12R,13R,14R,15R,16S,17S,18E,20Z)-2,10,12,14,16,26,28-heptahydroxy-3,7,9,11,13,15,17,21-octamethyl-23-azatricyclo[22.3.1.05,27]octacosa-1(28),5(27),7,18,20,23,25-heptaene-4,6,22-trione

Prostreptovaricin

[[(2R,3S,4R,5R)-5-(6-aminopurin-9-yl)-3,4-dihydroxyoxolan-2-yl]methoxy-hydroxyphosphoryl] icosanoate

C30H52N5O8P (641.3553)

PC(2:0/22:6(5Z,8E,10Z,13Z,15E,19Z)-2OH(7S, 17S))

PC(22:6(5Z,8E,10Z,13Z,15E,19Z)-2OH(7S, 17S)/2:0)

PC(2:0/22:6(4Z,7Z,11E,13Z,15E,19Z)-2OH(10S,17))

PC(22:6(4Z,7Z,11E,13Z,15E,19Z)-2OH(10S,17)/2:0)

[(3E)-2,13-diacetyloxy-7,10-dihydroxy-8,12,15,15-tetramethyl-9-oxo-5-tricyclo[9.3.1.14,8]hexadeca-3,11-dienyl] 3-(dimethylamino)-2-hydroxy-3-phenylpropanoate

N-(2-aminophenyl)-4-[[[(2S,3R)-10-[[cyclohexyl(oxo)methyl]amino]-5-[(2S)-1-hydroxypropan-2-yl]-3-methyl-6-oxo-3,4-dihydro-2H-1,5-benzoxazocin-2-yl]methyl-methylamino]methyl]benzamide

N-(2-aminophenyl)-4-[[[(2S,3S)-10-[[cyclohexyl(oxo)methyl]amino]-5-[(2R)-1-hydroxypropan-2-yl]-3-methyl-6-oxo-3,4-dihydro-2H-1,5-benzoxazocin-2-yl]methyl-methylamino]methyl]benzamide

N-(2-aminophenyl)-4-[[[(2S,3R)-10-[[cyclohexyl(oxo)methyl]amino]-5-[(2R)-1-hydroxypropan-2-yl]-3-methyl-6-oxo-3,4-dihydro-2H-1,5-benzoxazocin-2-yl]methyl-methylamino]methyl]benzamide

N-(2-aminophenyl)-4-[[[(2R,3S)-10-[[cyclohexyl(oxo)methyl]amino]-5-[(2S)-1-hydroxypropan-2-yl]-3-methyl-6-oxo-3,4-dihydro-2H-1,5-benzoxazocin-2-yl]methyl-methylamino]methyl]benzamide

N-(2-aminophenyl)-4-[[[(2R,3S)-10-[[cyclohexyl(oxo)methyl]amino]-5-[(2R)-1-hydroxypropan-2-yl]-3-methyl-6-oxo-3,4-dihydro-2H-1,5-benzoxazocin-2-yl]methyl-methylamino]methyl]benzamide

N-(2-aminophenyl)-4-[[[(2R,3R)-10-[[cyclohexyl(oxo)methyl]amino]-5-[(2R)-1-hydroxypropan-2-yl]-3-methyl-6-oxo-3,4-dihydro-2H-1,5-benzoxazocin-2-yl]methyl-methylamino]methyl]benzamide

N-(2-aminophenyl)-4-[[[(2R,3R)-10-[[cyclohexyl(oxo)methyl]amino]-5-[(2S)-1-hydroxypropan-2-yl]-3-methyl-6-oxo-3,4-dihydro-2H-1,5-benzoxazocin-2-yl]methyl-methylamino]methyl]benzamide

N-(2-aminophenyl)-4-[[[(2S,3S)-10-[[cyclohexyl(oxo)methyl]amino]-5-[(2S)-1-hydroxypropan-2-yl]-3-methyl-6-oxo-3,4-dihydro-2H-1,5-benzoxazocin-2-yl]methyl-methylamino]methyl]benzamide

N-[[(3R,9S,10R)-12-[(2S)-1-hydroxypropan-2-yl]-3,10-dimethyl-13-oxo-16-[(4,4,4-trifluoro-1-oxobutyl)amino]-2,8-dioxa-12-azabicyclo[12.4.0]octadeca-1(14),15,17-trien-9-yl]methyl]-N-methylcyclohexanecarboxamide

N-[[(3R,9S,10R)-12-[(2S)-1-hydroxypropan-2-yl]-3,10-dimethyl-13-oxo-16-[(4,4,4-trifluoro-1-oxobutyl)amino]-2,8-dioxa-12-azabicyclo[12.4.0]octadeca-1(14),15,17-trien-9-yl]methyl]-N-methylcyclohexanecarboxamide

C33H50F3N3O6 (641.3652)

Rifamycin-undecaketide carboxylic acid