Exact Mass: 399.0326

Exact Mass Matches: 399.0326

Found 88 metabolites which its exact mass value is equals to given mass value 399.0326, within given mass tolerance error 0.05 dalton. Try search metabolite list with more accurate mass tolerance error 0.01 dalton.

Timepidium bromide

Timepidium bromide anhydrous

C17H22NOS2. Br (399.0326)


A - Alimentary tract and metabolism > A03 - Drugs for functional gastrointestinal disorders > A03A - Drugs for functional gastrointestinal disorders > A03AB - Synthetic anticholinergics, quaternary ammonium compounds C78272 - Agent Affecting Nervous System > C66880 - Anticholinergic Agent > C29704 - Antimuscarinic Agent ATC code: A03AB19

   

Monoiodothyronine

(2R)-2-amino-3-[4-(4-hydroxyphenoxy)-3-iodophenyl]propanoic acid

C15H14INO4 (398.9968)


Monoiodothyronine is an iodothyronine metabolite. It has unknown physiological functions. [HMDB] Monoiodothyronine is an iodothyronine metabolite. It has unknown physiological functions. D006730 - Hormones, Hormone Substitutes, and Hormone Antagonists > D006728 - Hormones

   

Vitisidin A

7-carboxy-4,11-dihydroxy-3-(4-hydroxy-3,5-dimethoxyphenyl)-2λ⁴,8-dioxatricyclo[7.3.1.0⁵,¹³]trideca-1(13),2,4,6,9,11-hexaen-2-ylium

C20H15O9 (399.0716)


Vitisidin A is a polyphenol compound found in foods of plant origin (PMID: 20428313). A polyphenol compound found in foods of plant origin (PhenolExplorer)

   

3'-Monoiodo-L-thyronine

(2S)-2-amino-3-[4-(4-hydroxy-3-iodophenoxy)phenyl]propanoic acid

C15H14INO4 (398.9968)


3-Monoiodo-L-thyronine, also known as 3-Iodothyronine, belongs to the class of organic compounds known as phenylalanine and derivatives. Phenylalanine and derivatives are compounds containing phenylalanine or a derivative thereof resulting from reaction of phenylalanine at the amino group or the carboxy group, or from the replacement of any hydrogen of glycine by a heteroatom. 3-Monoiodo-L-thyronine is a very strong basic compound (based on its pKa). D006730 - Hormones, Hormone Substitutes, and Hormone Antagonists > D006728 - Hormones

   

2-Amino-3-(4-(4-hydroxyphenoxy)-3-iodophenyl)propanoic acid

2-Amino-3-(4-(4-hydroxyphenoxy)-3-iodophenyl)propanoic acid

C15H14INO4 (398.9968)


D006730 - Hormones, Hormone Substitutes, and Hormone Antagonists > D006728 - Hormones

   

1H-Indole-2-carbonitrile, 4-(2-hydroxy-3-((1-methylethyl)amino)propoxy)-3-iodo-

1H-Indole-2-carbonitrile, 4-(2-hydroxy-3-((1-methylethyl)amino)propoxy)-3-iodo-

C15H18IN3O2 (399.0444)


   

Iodothyronine

3-[4-(4-hydroxyphenoxy)phenyl]-2-(iodoamino)propanoic acid

C15H14INO4 (398.9968)


   

Pantoprazole Sulfone

6-(Difluoromethoxy)-2-[(3,4-dimethoxypyridin-2-yl)methanesulphonyl]-1H-1,3-benzodiazole

C16H15F2N3O5S (399.07)


   

R-4'-phosphopantothenoyl-L-cysteine

2-[(3-{[2-hydroxy-3,3-dimethyl-1-oxido-4-(phosphonooxy)butylidene]amino}-1-oxidopropylidene)amino]-3-sulphanylpropanoic acid

C12H20N2O9PS (399.0627)


R-4-phosphopantothenoyl-l-cysteine is a member of the class of compounds known as hybrid peptides. Hybrid peptides are compounds containing at least two different types of amino acids (alpha, beta, gamma, delta) linked to each other through a peptide bond. R-4-phosphopantothenoyl-l-cysteine is slightly soluble (in water) and a moderately acidic compound (based on its pKa). R-4-phosphopantothenoyl-l-cysteine can be found in a number of food items such as peach, chia, persian lime, and yellow pond-lily, which makes R-4-phosphopantothenoyl-l-cysteine a potential biomarker for the consumption of these food products.

   
   
   
   
   

gamma-Glutamyldjenkol-saeuresulphoxid

gamma-Glutamyldjenkol-saeuresulphoxid

C12H21N3O8S2 (399.077)


   

gamma-Glutamylselenocystathionin II

gamma-Glutamylselenocystathionin II

C12H21N3O7Se (399.0545)


   
   

gamma-Glutamylselenocystathionin I

gamma-Glutamylselenocystathionin I

C12H21N3O7Se (399.0545)


   
   
   

1H-Benzimidazole, 5-(difluoromethoxy)-2-[[(3,4-dimethoxy-2-pyridinyl)methyl]sulfonyl]-

1H-Benzimidazole, 5-(difluoromethoxy)-2-[[(3,4-dimethoxy-2-pyridinyl)methyl]sulfonyl]-

C16H15F2N3O5S (399.07)


   

Monoiodothyronine

Monoiodothyronine

C15H14INO4 (398.9968)


D006730 - Hormones, Hormone Substitutes, and Hormone Antagonists > D006728 - Hormones

   

Vitisidin A

7-carboxy-4,11-dihydroxy-3-(4-hydroxy-3,5-dimethoxyphenyl)-2$l^{4},8-dioxatricyclo[7.3.1.0^{5,13}]trideca-1(13),2,4,6,9,11-hexaen-2-ylium

C20H15O9 (399.0716)


   

4-Bromo-N,N-diphenyl-4-biphenylamine

4-Bromo-N,N-diphenyl-4-biphenylamine

C24H18BrN (399.0623)


   

N-(4-Bromophenyl)-N-phenyl-4-biphenylamine

N-(4-Bromophenyl)-N-phenyl-4-biphenylamine

C24H18BrN (399.0623)


   

6-BROMO-2-(3-ISOBUTOXYPHENYL)QUINOLINE-4-CARBOXYLICACID

6-BROMO-2-(3-ISOBUTOXYPHENYL)QUINOLINE-4-CARBOXYLICACID

C20H18BrNO3 (399.047)


   

3-iodo-l-thyronine

O-(4-Hydroxyphenyl)-3-iodo-L-tyrosine

C15H14INO4 (398.9968)


D006730 - Hormones, Hormone Substitutes, and Hormone Antagonists > D006728 - Hormones

   

3-CHLORO-3-METHYL BUTANONE

3-CHLORO-3-METHYL BUTANONE

C19H14ClN3O5 (399.0622)


   

N-(1-PYRENEMETHYL)IODOACETAMIDE

N-(1-PYRENEMETHYL)IODOACETAMIDE

C19H14INO (399.012)


   

Rufloxacin hydrochloride

Rufloxacin (hydrochloride)

C17H19ClFN3O3S (399.082)


D000970 - Antineoplastic Agents > D059003 - Topoisomerase Inhibitors > D059005 - Topoisomerase II Inhibitors D000890 - Anti-Infective Agents > D000900 - Anti-Bacterial Agents > D024841 - Fluoroquinolones D004791 - Enzyme Inhibitors

   

Scopolamine N-oxide hydrobromide

Scopolamine N-oxide hydrobromide

C17H22BrNO5 (399.0681)


   

2-(4-BROMOPHENYL)-4-PHENYL-6-(4-TOLYL)PYRIDINE

2-(4-BROMOPHENYL)-4-PHENYL-6-(4-TOLYL)PYRIDINE

C24H18BrN (399.0623)


   

5-(2,4-difluorophenyl)-2-(4-nitrobenzoyl)oxybenzoic acid

5-(2,4-difluorophenyl)-2-(4-nitrobenzoyl)oxybenzoic acid

C20H11F2NO6 (399.0554)


   

Anisodine Hydromide

Anisodine Hydromide

C17H22BrNO5 (399.0681)


   

Triethylsulfonium bis(trifluoromethylsulfonyl)imide

Triethylsulfonium bis(trifluoromethylsulfonyl)imide

C8H15F6NO4S3 (399.0067)


   

4-METHYL-MORPHOLINE-2-CARBOXYLIC ACID

4-METHYL-MORPHOLINE-2-CARBOXYLIC ACID

C14H13N3O7S2 (399.0195)


   

3-BROMO-1-(4-[3-CHLORO-5-(TRIFLUOROMETHYL)PYRIDIN-2-YL]PIPERAZINO)PROPAN-1-ONE

3-BROMO-1-(4-[3-CHLORO-5-(TRIFLUOROMETHYL)PYRIDIN-2-YL]PIPERAZINO)PROPAN-1-ONE

C13H14BrClF3N3O (398.9961)


   

5-(2,6-DICHLOROPHENYL)-2-(PHENYLTHIO)-6H-PYRIMIDO[1,6-B]PYRIDAZIN-6-ONE

5-(2,6-DICHLOROPHENYL)-2-(PHENYLTHIO)-6H-PYRIMIDO[1,6-B]PYRIDAZIN-6-ONE

C19H11Cl2N3OS (399)


   

4-(2,4-dichlorophenyl)-8-(trifluoromethoxy)-3a,4,5,9b-tetrahydro-3H-cyclopenta[c]quinoline

4-(2,4-dichlorophenyl)-8-(trifluoromethoxy)-3a,4,5,9b-tetrahydro-3H-cyclopenta[c]quinoline

C19H14Cl2F3NO (399.0404)


   

1H,1H-Perfluorooctylamine

1H,1H-Perfluorooctylamine

C8H4F15N (399.0104)


   

phenylmercury dimethyldithiocarbamate

phenylmercury dimethyldithiocarbamate

C9H11HgNS2 (399.0039)


   

2,6-difluoro-N-(1-{[2-fluoro-6-(trifluoromethyl)phenyl]methyl}-1H-pyrazol-3-yl)benzamide

2,6-difluoro-N-(1-{[2-fluoro-6-(trifluoromethyl)phenyl]methyl}-1H-pyrazol-3-yl)benzamide

C18H11F6N3O (399.0806)


   

4-Nitrobenzoic acid [6-[[(4-methyl-2-pyrimidinyl)thio]methyl]-4-oxo-3-pyranyl] ester

4-Nitrobenzoic acid [6-[[(4-methyl-2-pyrimidinyl)thio]methyl]-4-oxo-3-pyranyl] ester

C18H13N3O6S (399.0525)


   

[2-[[2-[(Dimethylamino)methyl]phenyl]thio]-5-iodophenyl]methanol

[2-[[2-[(Dimethylamino)methyl]phenyl]thio]-5-iodophenyl]methanol

C16H18INOS (399.0154)


   

1-[[2-(2,4-Dichlorophenoxy)-1-oxoethyl]amino]-3-(4-methoxyphenyl)thiourea

1-[[2-(2,4-Dichlorophenoxy)-1-oxoethyl]amino]-3-(4-methoxyphenyl)thiourea

C16H15Cl2N3O3S (399.0211)


   

4-Methyl-3-nitrobenzoic acid [4-oxo-6-[(2-pyrimidinylthio)methyl]-3-pyranyl] ester

4-Methyl-3-nitrobenzoic acid [4-oxo-6-[(2-pyrimidinylthio)methyl]-3-pyranyl] ester

C18H13N3O6S (399.0525)


   
   

4-(4-chlorophenyl)sulfonyl-N-(furan-2-ylmethyl)piperazine-1-carbothioamide

4-(4-chlorophenyl)sulfonyl-N-(furan-2-ylmethyl)piperazine-1-carbothioamide

C16H18ClN3O3S2 (399.0478)


   

Oxaliplatine

Oxaliplatine

C8H16N2O4Pt+2 (399.0758)


D000970 - Antineoplastic Agents

   

8-bromo-1-[[4-(trifluoromethyl)phenyl]methyl]-5H-4,1-benzoxazepin-2-one

8-bromo-1-[[4-(trifluoromethyl)phenyl]methyl]-5H-4,1-benzoxazepin-2-one

C17H13BrF3NO2 (399.0082)


   

(1R,2R)-cyclohexane-1,2-diamine;oxalic acid;platinum(2+)

(1R,2R)-cyclohexane-1,2-diamine;oxalic acid;platinum(2+)

C8H16N2O4Pt+2 (399.0758)


D000970 - Antineoplastic Agents

   

Thymidine-diphosphate

Thymidine-diphosphate

C10H13N2O11P2-3 (398.9995)


COVID info from COVID-19 Disease Map Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS

   

N-[(R)-4-phosphonatopantothenoyl]-L-cysteinate(3-)

N-[(R)-4-phosphonatopantothenoyl]-L-cysteinate(3-)

C12H20N2O9PS-3 (399.0627)


COVID info from COVID-19 Disease Map Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS

   

3-Monoiodothyronine

3-Monoiodothyronine

C15H14INO4 (398.9968)


D006730 - Hormones, Hormone Substitutes, and Hormone Antagonists > D006728 - Hormones

   

2-[(2S,3S)-2,4,6,8-tetrahydroxy-5,10-dioxo-5,10-dihydroanthra[2,3-b]furan-3-yl]ethyl acetate

2-[(2S,3S)-2,4,6,8-tetrahydroxy-5,10-dioxo-5,10-dihydroanthra[2,3-b]furan-3-yl]ethyl acetate

C20H15O9- (399.0716)


   

(2S)-2-azaniumyl-3-[4-(4-hydroxy-3-iodophenoxy)phenyl]propanoate

(2S)-2-azaniumyl-3-[4-(4-hydroxy-3-iodophenoxy)phenyl]propanoate

C15H14INO4 (398.9968)


   

N-[[1-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyindol-3-yl]methyl]carbamodithioate

N-[[1-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyindol-3-yl]methyl]carbamodithioate

C16H19N2O6S2- (399.0684)


   

2,4-Dichloro-5-hydroxy-6-(4-hydroxy-2-methoxy-6-methoxycarbonylbenzoyl)-3-methylphenolate

2,4-Dichloro-5-hydroxy-6-(4-hydroxy-2-methoxy-6-methoxycarbonylbenzoyl)-3-methylphenolate

C17H13Cl2O7- (399.0038)


   

(2S)-2-amino-5-[[(2R)-3-[carboxy(chloro)methyl]sulfanyl-1-(carboxymethylamino)-1-oxopropan-2-yl]amino]-5-oxopentanoic acid

(2S)-2-amino-5-[[(2R)-3-[carboxy(chloro)methyl]sulfanyl-1-(carboxymethylamino)-1-oxopropan-2-yl]amino]-5-oxopentanoic acid

C12H18ClN3O8S (399.0503)


   
   

R-4-phosphopantothenoyl-L-cysteine

R-4-phosphopantothenoyl-L-cysteine

C12H20N2O9PS-3 (399.0627)


   

Timepidium bromide

Timepidium bromide

C17H22BrNOS2 (399.0326)


A - Alimentary tract and metabolism > A03 - Drugs for functional gastrointestinal disorders > A03A - Drugs for functional gastrointestinal disorders > A03AB - Synthetic anticholinergics, quaternary ammonium compounds C78272 - Agent Affecting Nervous System > C66880 - Anticholinergic Agent > C29704 - Antimuscarinic Agent

   

3-[(2,5-dichlorophenoxy)methyl]-N-(2,6-dimethylphenyl)benzamide

3-[(2,5-dichlorophenoxy)methyl]-N-(2,6-dimethylphenyl)benzamide

C22H19Cl2NO2 (399.0793)


   

Ethyl 2-[(4-bromo-1-ethylpyrazole-3-carbonyl)amino]-4,5-dimethylthiophene-3-carboxylate

Ethyl 2-[(4-bromo-1-ethylpyrazole-3-carbonyl)amino]-4,5-dimethylthiophene-3-carboxylate

C15H18BrN3O3S (399.0252)


   

N-(6-ethoxy-1,3-benzothiazol-2-yl)-2-[(3-methyl-2-imidazo[4,5-b]pyridinyl)thio]acetamide

N-(6-ethoxy-1,3-benzothiazol-2-yl)-2-[(3-methyl-2-imidazo[4,5-b]pyridinyl)thio]acetamide

C18H17N5O2S2 (399.0824)


   

(2S,3S)-versiconal hemiacetal acetate(1-)

(2S,3S)-versiconal hemiacetal acetate(1-)

C20H15O9- (399.0716)


A phenolate anion obtained by deprotonation of the 8-hydroxy group of (2S-3S)-versiconal hemiacetal acetate. It is the major microspecies at pH 7.3 (according to Marvin v 6.2.0.).

   

2-chloro-N-[5-chloro-2-(4-methyl-1-piperazinyl)phenyl]benzenesulfonamide

2-chloro-N-[5-chloro-2-(4-methyl-1-piperazinyl)phenyl]benzenesulfonamide

C17H19Cl2N3O2S (399.0575)


   

N-(2-bromo-4-nitrophenyl)-2-[(5-propan-2-yl-1H-1,2,4-triazol-3-yl)thio]acetamide

N-(2-bromo-4-nitrophenyl)-2-[(5-propan-2-yl-1H-1,2,4-triazol-3-yl)thio]acetamide

C13H14BrN5O3S (399.0001)


   

2-(4-bromophenoxy)-N-[2-[(4-methyl-1,2,4-triazol-3-yl)thio]-1-oxoethyl]acetohydrazide

2-(4-bromophenoxy)-N-[2-[(4-methyl-1,2,4-triazol-3-yl)thio]-1-oxoethyl]acetohydrazide

C13H14BrN5O3S (399.0001)


   

2,4-difluoro-N-[4-(1,1,1,3,3,3-hexafluoro-2-hydroxypropan-2-yl)phenyl]benzamide

2,4-difluoro-N-[4-(1,1,1,3,3,3-hexafluoro-2-hydroxypropan-2-yl)phenyl]benzamide

C16H9F8NO2 (399.0506)


   

4-[[[5-[(4-chlorophenoxy)methyl]-1,3,4-oxadiazol-2-yl]thio]methyl]-1H-quinolin-2-one

4-[[[5-[(4-chlorophenoxy)methyl]-1,3,4-oxadiazol-2-yl]thio]methyl]-1H-quinolin-2-one

C19H14ClN3O3S (399.0444)


   

2-(2-Chloro-6-fluoro-phenyl)-3-(4-methyl-6-phenyl-pyrimidin-2-yl)thiazolidin-4-one

2-(2-Chloro-6-fluoro-phenyl)-3-(4-methyl-6-phenyl-pyrimidin-2-yl)thiazolidin-4-one

C20H15ClFN3OS (399.0608)


   

2,6-difluoro-N-[4-(1,1,1,3,3,3-hexafluoro-2-hydroxypropan-2-yl)phenyl]benzamide

2,6-difluoro-N-[4-(1,1,1,3,3,3-hexafluoro-2-hydroxypropan-2-yl)phenyl]benzamide

C16H9F8NO2 (399.0506)


   

2-Acetyl-3,4a,8,10,11,12a-hexahydroxy-1,4,4a,5,12,12a-hexahydrotetracene-1,12-dione

2-Acetyl-3,4a,8,10,11,12a-hexahydroxy-1,4,4a,5,12,12a-hexahydrotetracene-1,12-dione

C20H15O9- (399.0716)


   

N-[(E)-(2-bromo-5-methoxyphenyl)methylideneamino]-N-hydroxyoctanediamide

N-[(E)-(2-bromo-5-methoxyphenyl)methylideneamino]-N-hydroxyoctanediamide

C16H22BrN3O4 (399.0794)


   

4-chloro-N-(4,5-dihydroxy-2-methyl-2,3,4,5-tetrahydroindol-1-yl)-3-sulfamoylbenzamide

4-chloro-N-(4,5-dihydroxy-2-methyl-2,3,4,5-tetrahydroindol-1-yl)-3-sulfamoylbenzamide

C16H18ClN3O5S (399.0656)


   

[5-[2-amino-5-(formamidomethyl)-4-oxo-3H-pyrrolo[2,3-d]pyrimidin-7-yl]-3-hydroxy-2,5-dihydrofuran-2-yl]methyl phosphate

[5-[2-amino-5-(formamidomethyl)-4-oxo-3H-pyrrolo[2,3-d]pyrimidin-7-yl]-3-hydroxy-2,5-dihydrofuran-2-yl]methyl phosphate

C13H14N5O8P-2 (399.058)


   

dTDP(3-)

dTDP(3-)

C10H13N2O11P2 (398.9995)


An organophosphate oxoanion arising from deprotonation of the diphosphate OH groups of thymidine 5-diphosphate; major species at pH 7.3.

   

Pantoprazole Sulfone

Pantoprazole Sulfone

C16H15F2N3O5S (399.07)


   

N-[(R)-4-phosphonatopantothenoyl]-L-cysteinate(3-)

N-[(R)-4-phosphonatopantothenoyl]-L-cysteinate(3-)

C12H20N2O9PS (399.0627)


Trianion of N-[(R)-4-phosphopantothenoyl]-L-cysteine arising from deprotonation of carboxylic acid and phosphate functions.

   

NS3861 (fumarate)

NS3861 (fumarate)

C16H18BrNO4S (399.014)


NS3861 fumarate is an agonist of nicotinic acetylcholine receptors (nAChRs) and binds with high affinity to heteromeric α3β4 nAChR. The binding Ki values of 0.62, 25, 7.8, 55 nM for α3β4, α3β2, α4β4, α4β2, respectively[1].

   

3-{[3-({3-[(4-hydroxyphenyl)methanethioamido]-1-sulfanylpropylidene}amino)-1-sulfanylpropylidene]amino}propanoic acid

3-{[3-({3-[(4-hydroxyphenyl)methanethioamido]-1-sulfanylpropylidene}amino)-1-sulfanylpropylidene]amino}propanoic acid

C16H21N3O3S3 (399.0745)


   

(2s)-2-amino-4-{[(1r)-2-({[(r)-(2r)-2-amino-2-carboxyethanesulfinyl]methyl}sulfanyl)-1-carboxyethyl]-c-hydroxycarbonimidoyl}butanoic acid

(2s)-2-amino-4-{[(1r)-2-({[(r)-(2r)-2-amino-2-carboxyethanesulfinyl]methyl}sulfanyl)-1-carboxyethyl]-c-hydroxycarbonimidoyl}butanoic acid

C12H21N3O8S2 (399.077)


   

2-amino-4-[(2-{[(2-amino-2-carboxyethanesulfinyl)methyl]sulfanyl}-1-carboxyethyl)-c-hydroxycarbonimidoyl]butanoic acid

2-amino-4-[(2-{[(2-amino-2-carboxyethanesulfinyl)methyl]sulfanyl}-1-carboxyethyl)-c-hydroxycarbonimidoyl]butanoic acid

C12H21N3O8S2 (399.077)


   

(2s)-2-{[(1s)-3-{[(2r)-2-amino-2-carboxyethyl]selanyl}-1-carboxypropyl]amino}-4-(c-hydroxycarbonimidoyl)butanoic acid

(2s)-2-{[(1s)-3-{[(2r)-2-amino-2-carboxyethyl]selanyl}-1-carboxypropyl]amino}-4-(c-hydroxycarbonimidoyl)butanoic acid

C12H21N3O7Se (399.0545)


   

(2s)-2-{[(1r)-2-{[(3s)-3-amino-3-carboxypropyl]selanyl}-1-carboxyethyl]amino}-4-(c-hydroxycarbonimidoyl)butanoic acid

(2s)-2-{[(1r)-2-{[(3s)-3-amino-3-carboxypropyl]selanyl}-1-carboxyethyl]amino}-4-(c-hydroxycarbonimidoyl)butanoic acid

C12H21N3O7Se (399.0545)


   

2-({3-[(2-amino-2-carboxyethyl)selanyl]-1-carboxypropyl}amino)-4-(c-hydroxycarbonimidoyl)butanoic acid

2-({3-[(2-amino-2-carboxyethyl)selanyl]-1-carboxypropyl}amino)-4-(c-hydroxycarbonimidoyl)butanoic acid

C12H21N3O7Se (399.0545)


   

2-({2-[(3-amino-3-carboxypropyl)selanyl]-1-carboxyethyl}amino)-4-(c-hydroxycarbonimidoyl)butanoic acid

2-({2-[(3-amino-3-carboxypropyl)selanyl]-1-carboxyethyl}amino)-4-(c-hydroxycarbonimidoyl)butanoic acid

C12H21N3O7Se (399.0545)