Exact Mass: 506.3066

Exact Mass Matches: 506.3066

Found 500 metabolites which its exact mass value is equals to given mass value 506.3066, within given mass tolerance error 0.05 dalton. Try search metabolite list with more accurate mass tolerance error 0.01 dalton.

Mucronine A

C29H38N4O4 (506.2893)

Iriomoteolide 1a

Iriomoteolide 1a; Iriomoteolide-1a

C29H46O7 (506.3243)

4-Megastigmene-6a,9R-diol 9-[apiosyl-(1->6)-glucoside]

2-({[3,4-dihydroxy-4-(hydroxymethyl)oxolan-2-yl]oxy}methyl)-6-{[4-(1-hydroxy-2,6,6-trimethylcyclohex-2-en-1-yl)butan-2-yl]oxy}oxane-3,4,5-triol

C24H42O11 (506.2727)

4-Megastigmene-6a,9R-diol 9-[apiosyl-(1->6)-glucoside] is found in fruits. 4-Megastigmene-6a,9R-diol 9-[apiosyl-(1->6)-glucoside] is a constituent of Cydonia vulgaris (quince). Constituent of Cydonia vulgaris (quince). 4-Megastigmene-6a,9R-diol 9-[apiosyl-(1->6)-glucoside] is found in fruits.

(3b,9R)-5-Megastigmene-3,9-diol 9-[apiosyl-(1->6)-glucoside]

2-({[3,4-dihydroxy-4-(hydroxymethyl)oxolan-2-yl]oxy}methyl)-6-{[4-(4-hydroxy-2,6,6-trimethylcyclohex-1-en-1-yl)butan-2-yl]oxy}oxane-3,4,5-triol

C24H42O11 (506.2727)

(3b,9R)-5-Megastigmene-3,9-diol 9-[apiosyl-(1->6)-glucoside] is found in tea. (3b,9R)-5-Megastigmene-3,9-diol 9-[apiosyl-(1->6)-glucoside] is a constituent of leaves of Camellia sinensis var. sinensis (China tea). Constituent of leaves of Camellia sinensis variety sinensis (China tea). (3b,9R)-5-Megastigmene-3,9-diol 9-[apiosyl-(1->6)-glucoside] is found in tea.

(5alpha,6beta,14alpha,20R,22R)-5,6,14,20,27-Pentahydroxy-1-oxowith-24-enolide

6-(1-hydroxy-1-{7,8,11-trihydroxy-2,15-dimethyl-3-oxotetracyclo[8.7.0.0²,⁷.0¹¹,¹⁵]heptadecan-14-yl}ethyl)-3-(hydroxymethyl)-4-methyl-5,6-dihydro-2H-pyran-2-one

C28H42O8 (506.288)

(5alpha,6beta,14alpha,20R,22R)-5,6,14,20,27-Pentahydroxy-1-oxowith-24-enolide is found in fruits. (5alpha,6beta,14alpha,20R,22R)-5,6,14,20,27-Pentahydroxy-1-oxowith-24-enolide is a constituent of Physalis peruviana (Cape gooseberry). Constituent of Physalis peruviana (Cape gooseberry). (5alpha,6beta,14alpha,20R,22R)-5,6,14,20,27-Pentahydroxy-1-oxowith-24-enolide is found in fruits.

Ixabepilone

(1S,3S,7R,10S,11S,12S,16R)-7,11-dihydroxy-8,8,10,12,16-pentamethyl-3-[(1E)-1-(2-methyl-1,3-thiazol-4-yl)prop-1-en-2-yl]-17-oxa-4-azabicyclo[14.1.0]heptadecane-5,9-dione

C27H42N2O5S (506.2814)

Ixabepilone is an epothilone B analog developed by Bristol-Myers Squibb as a cancer drug. On October 16, 2007, the U.S. Food and Drug Administration approved ixabepilone for the treatment of aggressive metastatic or locally advanced breast cancer no longer responding to currently available chemotherapies. Ixabepilone is administered through injection, and will be marketed under the trade name Ixempra. [Wikipedia] Ixabepilone is a semisynthetic analogue of epothilone B. It has a lactone lactam modification that

Chenodeoxycholylasparagine

3-carbamoyl-2-(4-{5,9-dihydroxy-2,15-dimethyltetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadecan-14-yl}pentanamido)propanoic acid

C28H46N2O6 (506.3356)

Chenodeoxycholylasparagine belongs to a class of molecules known as bile acid-amino acid conjugates. These are bile acid conjugates that consist of a primary bile acid such as cholic acid, doxycholic acid and chenodeoxycholic acid, conjugated to an amino acid. Chenodeoxycholylasparagine consists of the bile acid chenodeoxycholic acid conjugated to the amino acid Asparagine conjugated at the C24 acyl site.Bile acids play an important role in regulating various physiological systems, such as fat digestion, cholesterol metabolism, vitamin absorption, liver function, and enterohepatic circulation through their combined signaling, detergent, and antimicrobial mechanisms (PMID: 34127070). Bile acids also act as detergents in the gut and support the absorption of fats through the intestinal membrane. These same properties allow for the disruption of bacterial membranes, thereby allowing them to serve a bacteriocidal or bacteriostatic function. In humans (and other mammals) bile acids are normally conjugated with the amino acids glycine and taurine by the liver. This conjugation catalyzed by two liver enzymes, bile acid CoA ligase (BAL) and bile acid CoA: amino acid N-acyltransferase (BAT). Glycine and taurine bound BAs are also referred to as bile salts due to their decreased pKa and complete ionization resulting in these compounds being present as anions in vivo. Unlike glycine and taurine-conjugated bile acids, these recently discovered bile acids, such as Chenodeoxycholylasparagine, are produced by the gut microbiota, making them secondary bile acids (PMID: 32103176) or microbially conjugated bile acids (MCBAs) (PMID: 34127070). Evidence suggests that these bile acid-amino acid conjugates are produced by microbes belonging to Clostridia species (PMID: 32103176). These unusual bile acid-amino acid conjugates are found in higher frequency in patients with inflammatory bowel disease (IBD), cystic fibrosis (CF) and in infants (PMID: 32103176). Chenodeoxycholylasparagine appears to act as an agonist for the farnesoid X receptor (FXR) and it can also lead to reduced expression of bile acid synthesis genes (PMID: 32103176). It currently appears that microbially conjugated bile acids (MCBAs) or amino acid-bile acid conjugates are only conjugated to cholic acid, deoxycholic acid and chenodeoxycholic acid (PMID: 34127070). It has been estimated that if microbial conjugation of bile acids is very promiscuous and occurs for all potential oxidized, epimerized, and dehydroxylated states of each hydroxyl group present on cholic acid (C3, C7, C12) in addition to ring orientation, the total number of potential human bile acid conjugates could be over 2800 (PMID: 34127070).

Deoxycholylasparagine

2-[(4-{5,16-dihydroxy-2,15-dimethyltetracyclo[8.7.0.0,.0,]heptadecan-14-yl}-1-hydroxypentylidene)amino]-3-(C-hydroxycarbonimidoyl)propanoate

C28H46N2O6 (506.3356)

Deoxycholylasparagine belongs to a class of molecules known as bile acid-amino acid conjugates. These are bile acid conjugates that consist of a primary bile acid such as cholic acid, doxycholic acid and chenodeoxycholic acid, conjugated to an amino acid. Deoxycholylasparagine consists of the bile acid deoxycholic acid conjugated to the amino acid Asparagine conjugated at the C24 acyl site.Bile acids play an important role in regulating various physiological systems, such as fat digestion, cholesterol metabolism, vitamin absorption, liver function, and enterohepatic circulation through their combined signaling, detergent, and antimicrobial mechanisms (PMID: 34127070). Bile acids also act as detergents in the gut and support the absorption of fats through the intestinal membrane. These same properties allow for the disruption of bacterial membranes, thereby allowing them to serve a bacteriocidal or bacteriostatic function. In humans (and other mammals) bile acids are normally conjugated with the amino acids glycine and taurine by the liver. This conjugation catalyzed by two liver enzymes, bile acid CoA ligase (BAL) and bile acid CoA: amino acid N-acyltransferase (BAT). Glycine and taurine bound BAs are also referred to as bile salts due to their decreased pKa and complete ionization resulting in these compounds being present as anions in vivo. Unlike glycine and taurine-conjugated bile acids, these recently discovered bile acids, such as Deoxycholylasparagine, are produced by the gut microbiota, making them secondary bile acids (PMID: 32103176) or microbially conjugated bile acids (MCBAs) (PMID: 34127070). Evidence suggests that these bile acid-amino acid conjugates are produced by microbes belonging to Clostridia species (PMID: 32103176). These unusual bile acid-amino acid conjugates are found in higher frequency in patients with inflammatory bowel disease (IBD), cystic fibrosis (CF) and in infants (PMID: 32103176). Deoxycholylasparagine appears to act as an agonist for the farnesoid X receptor (FXR) and it can also lead to reduced expression of bile acid synthesis genes (PMID: 32103176). It currently appears that microbially conjugated bile acids (MCBAs) or amino acid-bile acid conjugates are only conjugated to cholic acid, deoxycholic acid and chenodeoxycholic acid (PMID: 34127070). It has been estimated that if microbial conjugation of bile acids is very promiscuous and occurs for all potential oxidized, epimerized, and dehydroxylated states of each hydroxyl group present on cholic acid (C3, C7, C12) in addition to ring orientation, the total number of potential human bile acid conjugates could be over 2800 (PMID: 34127070).

Bemcentinib

1-{3,4-diazatricyclo[9.4.0.0^{2,7}]pentadeca-1(15),2,4,6,11,13-hexaen-5-yl}-N3-[7-(pyrrolidin-1-yl)-6,7,8,9-tetrahydro-5H-benzo[7]annulen-2-yl]-1H-1,2,4-triazole-3,5-diamine

C30H34N8 (506.2906)

Anadur

(13-methyl-3-oxo-2,6,7,8,9,10,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-17-yl) 3-(4-hexoxyphenyl)propanoate

C33H46O4 (506.3396)

Chromogenic Substrate S-2266

Asn Val Phe Lys

(2S)-6-amino-2-[(2S)-2-[(2S)-2-[(2S)-2-amino-3-carbamoylpropanamido]-3-methylbutanamido]-3-phenylpropanamido]hexanoic acid

C24H38N6O6 (506.2853)

Phe Val Ile Glu

(2S)-2-[(2S,3S)-2-[(2S)-2-[(2S)-2-amino-3-phenylpropanamido]-3-methylbutanamido]-3-methylpentanamido]pentanedioic acid