Exact Mass: 200.0103068
Exact Mass Matches: 200.0103068
Found 500 metabolites which its exact mass value is equals to given mass value 200.0103068
,
within given mass tolerance error 0.05 dalton. Try search metabolite list with more accurate mass tolerance error
0.01 dalton.
Camalexin
Camalexin is an indole phytoalexin that is indole substituted at position 3 by a 1,3-thiazol-2-yl group. It has a role as a metabolite. It is an indole phytoalexin and a member of 1,3-thiazoles. Camalexin is a natural product found in Arabidopsis, Arabidopsis thaliana, and Camelina sativa with data available. Camalexin is found in fats and oils. Camalexin is an alkaloid from the leaves of Camelina sativa (false flax) infected by the fungus Alternaria brassica Alkaloid from the leaves of Camelina sativa (false flax) infected by the fungus Alternaria brassicae. Camalexin is found in fats and oils. An indole phytoalexin that is indole substituted at position 3 by a 1,3-thiazol-2-yl group. D000890 - Anti-Infective Agents Camalexin is a phytoalexin isolated from Camelina sativa (Cruciferae) with antibacterial, antifungal, antiproliferative and anticancer activities. Camalexin can induce reactive oxygen species (ROS) production[1][2][3]. Camalexin. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=135531-86-1 (retrieved 2024-08-14) (CAS RN: 135531-86-1). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).
(4-Chloro-2-methylphenoxy)acetic acid
CONFIDENCE standard compound; INTERNAL_ID 579; DATASET 20200303_ENTACT_RP_MIX506; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 4601; ORIGINAL_PRECURSOR_SCAN_NO 4597 CONFIDENCE standard compound; INTERNAL_ID 579; DATASET 20200303_ENTACT_RP_MIX506; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 4590; ORIGINAL_PRECURSOR_SCAN_NO 4587 CONFIDENCE standard compound; INTERNAL_ID 579; DATASET 20200303_ENTACT_RP_MIX506; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 4578; ORIGINAL_PRECURSOR_SCAN_NO 4576 CONFIDENCE standard compound; INTERNAL_ID 579; DATASET 20200303_ENTACT_RP_MIX506; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 4593; ORIGINAL_PRECURSOR_SCAN_NO 4590 CONFIDENCE standard compound; INTERNAL_ID 579; DATASET 20200303_ENTACT_RP_MIX506; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 4563; ORIGINAL_PRECURSOR_SCAN_NO 4559 CONFIDENCE standard compound; INTERNAL_ID 579; DATASET 20200303_ENTACT_RP_MIX506; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 4587; ORIGINAL_PRECURSOR_SCAN_NO 4585 CONFIDENCE Reference Standard (Level 1); INTERNAL_ID 8421 D010575 - Pesticides > D006540 - Herbicides CONFIDENCE standard compound; ML_ID 2 D016573 - Agrochemicals
D-Erythrose 4-phosphate
D-Erythrose 4-phosphate is a phosphorylated derivative of erythrose that serves as an important intermediate in the pentose phosphate pathway. It is also used in phenylalanine, tyrosine and tryptophan biosynthesis, and it plays a role in vitamin B6 metabolism (KEGG); Erythrose 4-phosphate is an intermediate in the pentose phosphate pathway and the Calvin cycle. In addition, it serves as a precursor in the biosynthesis of the aromatic amino acids tyrosine, phenylalanine, and tryptophan. D-Erythrose 4-phosphate is found in many foods, some of which are shea tree, bog bilberry, arrowhead, and dock. D-Erythrose 4-phosphate is a phosphorylated derivative of erythrose that serves as an important intermediate in the pentose phosphate pathway. It is also used in phenylalanine, tyrosine and tryptophan biosynthesis, and it plays a role in vitamin B6 metabolism (KEGG). Acquisition and generation of the data is financially supported in part by CREST/JST.
Maleylacetoacetic acid
Maleylacetoacetic acid, also known as 4-maleylacetoacetate, is an intermediate in the metabolism of tyrosine. Homogentisate 1,2-dioxygenase (HGD) is the enzyme which catalyzes the conversion of homogentisate into 4-maleylacetoacetate. HGD is involved in the catabolism of aromatic rings, more specifically in the breakdown of the amino acids tyrosine and phenylalanine.
D-Erythrulose 4-phosphate
A ketotetrose phosphate that is D-erythrulose carrying a phosphono substituent at position O-4.
5-Carboxymethyl-2-hydroxymuconic semialdehyde
Sevoflurane
Sevoflurane is only found in individuals that have used or taken this drug. Sevoflurane (2,2,2-trifluoro-1-[trifluoromethyl]ethyl fluoromethyl ether), also called fluoromethyl, is a sweet-smelling, non-flammable, highly fluorinated methyl isopropyl ether used for induction and maintenance of general anesthesia. Together with desflurane, it is replacing isoflurane and halothane in modern anesthesiology. [Wikipedia]Sevoflurane induces a reduction in junctional conductance by decreasing gap junction channel opening times and increasing gap junction channel closing times. Sevoflurane also activates calcium dependent ATPase in the sarcoplasmic reticulum by increasing the fluidity of the lipid membrane. It also appears to bind the D subunit of ATP synthase and NADH dehydogenase and also binds to the GABA receptor, the large conductance Ca2+ activated potassium channel, the glutamate receptor, and the glycine receptor. D002491 - Central Nervous System Agents > D002492 - Central Nervous System Depressants > D000777 - Anesthetics N - Nervous system > N01 - Anesthetics > N01A - Anesthetics, general > N01AB - Halogenated hydrocarbons COVID info from clinicaltrial, clinicaltrials, clinical trial, clinical trials D006401 - Hematologic Agents > D010975 - Platelet Aggregation Inhibitors C78272 - Agent Affecting Nervous System > C245 - Anesthetic Agent Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS
Poppy acid
Poppy acid occurs in opium (Papaver somniferum) and other Papaver species. Occurs in opium (Papaver somniferum) and other Papaver subspecies.
Dibenzothiophene 5-oxide
A member of the class of dibenzothiophenes that is the 5-oxo derivative of dibenzothiophene.
4-Fumarylacetoacetic acid
4-Fumarylacetoacetic acid is an intermediate in the metabolism of tyrosine. Fumarylacetoacetate hydrolase (FAH) is an enzyme which catalyzes the hydrolysis of 4-fumarylacetoacetate into fumarate and acetoacetate. FAH is the last enzyme in the tyrosine catabolism pathway. FAH deficiency is associated with Type 1 hereditary tyrosinemia.
Aklomide
C254 - Anti-Infective Agent > C276 - Antiparasitic Agent > C277 - Antiprotozoal Agent INTERNAL_ID 284; CONFIDENCE standard compound; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 2951; ORIGINAL_PRECURSOR_SCAN_NO 2947 CONFIDENCE standard compound; INTERNAL_ID 284; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 2951; ORIGINAL_PRECURSOR_SCAN_NO 2947 CONFIDENCE standard compound; INTERNAL_ID 284; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 2956; ORIGINAL_PRECURSOR_SCAN_NO 2955 CONFIDENCE standard compound; INTERNAL_ID 284; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 2951; ORIGINAL_PRECURSOR_SCAN_NO 2949 CONFIDENCE standard compound; INTERNAL_ID 284; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 2919; ORIGINAL_PRECURSOR_SCAN_NO 2918
L-erythrulose 4-phosphate
A ketotetrose phosphate that is L-erythrulose carrying a phosphono substituent at position O-4.
4-Chloro-3,5-dimethoxybenzaldehyde
4-Chloro-3,5-dimethoxybenzaldehyde is found in mushrooms. 4-Chloro-3,5-dimethoxybenzaldehyde is isolated from the mycelium of Hericium erinaceum (lions mane). Isolated from the mycelium of Hericium erinaceum (lions mane). 4-Chloro-3,5-dimethoxybenzaldehyde is found in mushrooms.
Octafluorocyclobutane
Propellant and aerating agent in foamed or sprayed food products Octafluorocyclobutane is a dimer of tetrafluoroethylene. Its critical point is at 115.3 °C and 2.79 MPa. Octafluorocyclobutane, or perfluorocyclobutane, C4F8, is a compound of carbon and fluorine used in the production and processing of semiconductor materials and devices, for example as a deposition gas and etchant. It has also been investigated as a refrigerant in specialised applications, as a replacement for Ozone depleting chlorofluorocarbon refrigerants
4-fumarylacetoacetate(2-)
4-fumarylacetoacetate(2-) is also known as 4-Fumarylacetoacetic acid dianion. 4-fumarylacetoacetate(2-) is considered to be slightly soluble (in water) and acidic
4-Vinylphenol sulfate
4-Vinylphenol sulfate, also known as 4-vinylphenol sulphuric acid, is a member of the class of compounds known as phenylsulfates. Phenylsulfates are compounds containing a sulfuric acid group conjugated to a phenyl group. 4-Vinylphenol sulfate is practically insoluble (in water) and an extremely strong acidic compound (based on its pKa). 4-Vinylphenol sulfate can be found in blood and urine.
3,5-Dinitrocatechol
D002491 - Central Nervous System Agents > D018726 - Anti-Dyskinesia Agents > D000978 - Antiparkinson Agents D004791 - Enzyme Inhibitors > D065098 - Catechol O-Methyltransferase Inhibitors
2,6-dioxo-1,7-dioxa-spiro[4.4]nonane-8-carboxylic acid|Dilactophorbinsaeure
3,4-Dioxo-3,4-dihydro-2H-pyran-2,6-dicarbonsaeure|3,4-dioxo-3,4-dihydro-2H-pyran-2,6-dicarboxylic acid|Mekonsaeure
(Z)-2-[4-(2-Thieyl)-1-buten-3-ynyl]furan|cis-1-(2-Furyl)-4-(2-thienyl)-1-buten-3-yne|cis-4-Furyl-(2)-1-thienyl-(2)-buten-(3)-in-(1)
OR-486
D002491 - Central Nervous System Agents > D018726 - Anti-Dyskinesia Agents > D000978 - Antiparkinson Agents D004791 - Enzyme Inhibitors > D065098 - Catechol O-Methyltransferase Inhibitors
MCPA
D010575 - Pesticides > D006540 - Herbicides D016573 - Agrochemicals CONFIDENCE standard compound; EAWAG_UCHEM_ID 261
Camalexin
D000890 - Anti-Infective Agents IPB_RECORD: 278; CONFIDENCE confident structure Camalexin is a phytoalexin isolated from Camelina sativa (Cruciferae) with antibacterial, antifungal, antiproliferative and anticancer activities. Camalexin can induce reactive oxygen species (ROS) production[1][2][3].
4-(AMINOETHYL)THIAZOLE DIHYDROCHLORIDE
C5H10Cl2N2S (199.99417200000002)
4-Thiazolecarboxylicacid,2-[(aminoiminomethyl)amino]-5-methyl-(9CI)
3-trimethylsilanyl-thiophene-2-carboxylic acid
C8H12O2SSi (200.03272520000002)
5-(TRIMETHYLSILYL)-2-THIOPHENECARBOXYLIC ACID
C8H12O2SSi (200.03272520000002)
1-(4-CHLOROBENZOYL)-3-METHYL-2-(TRIFLUOROMETHYL)-1H-INDOLE
2-(Methylthio)-6,7-dihydrothieno[3,2-d]pyrimidin-4-ol
C7H8N2OS2 (200.00780379999998)
2-Chloroethanethioic acid S-(4-methylphenyl) ester
1H-Pyrazolo[3,4-d]pyrimidine, 6-chloro-4-(methylthio)-
1-(3-CHLORO-3-PHENYLPROPYL)PYRROLIDINEHYDROCHLORIDE
3-Chloro-6-(methylthio)-1H-pyrazolo[3,4-d]pyrimidine
2-Pyridinecarboxylicacid, 3-amino-5-chloro-, ethyl ester
C8H9ClN2O2 (200.03525240000002)
(2-TERT-BUTOXYCARBONYLAMINO-THIAZOL-4-YL)-ACETICACID
2-[(4-CHLORO-2-METHYL-3-PYRIDYL)OXY]ACETAMIDE
C8H9ClN2O2 (200.03525240000002)
1H-Benzimidazole,2-[(difluoromethyl)thio]-(9CI)
C8H6F2N2S (200.02197399999997)
Urea,1,1-bis(2-chloroethyl)-2-thio- (7CI)
C5H10Cl2N2S (199.99417200000002)
4-chloro-6-methylsulfanyl-1H-pyrazolo[3,4-d]pyrimidine
(3-Chloro-4-ethoxyphenyl)boronic acid
C8H10BClO3 (200.04114900000002)
Ethyl (6-chloro-2-pyrazinyl)acetate
C8H9ClN2O2 (200.03525240000002)
(3-chloro-5-ethoxyphenyl)boronic acid
C8H10BClO3 (200.04114900000002)
3,5-dichloro-6,6a-dihydro-1aH-indeno[1,2-b]oxirene
3-Carboxy-5-chlorophenylboronic acid
C7H6BClO4 (200.00476559999998)
2-chloro-n,n-dimethyl-4-nitroaniline
C8H9ClN2O2 (200.03525240000002)
5-Chloro-2-methoxy-benzoic acid hydrazide
C8H9ClN2O2 (200.03525240000002)
2,8-disulfanyl-3,7-dihydro-6H-purin-6-one
C5H4N4OS2 (199.98265339999998)
3-chloro-5-hydroxymethyl benzoic acid methyl ester
(2-CHLORO-5-ETHOXYPHENYL)BORONIC ACID
C8H10BClO3 (200.04114900000002)
Isopropyl 6-chloropyridazine-3-carboxylate
C8H9ClN2O2 (200.03525240000002)
(4-Chloro-3-ethoxyphenyl)boronic acid
C8H10BClO3 (200.04114900000002)
clonitrate
C3H5ClN2O6 (199.98361400000002)
C78274 - Agent Affecting Cardiovascular System > C29707 - Vasodilating Agent
5-Nitroisoindoline hydrochloride (1:1)
C8H9ClN2O2 (200.03525240000002)
2-(Carbomethoxy)ethylmethyldichlorosilane
C5H10Cl2O2Si (199.98271000000005)
1-Carbamimidoylurea phosphate (1:1)
C2H9N4O5P (200.03105539999999)
4-Carbamimidoylbenzoic acid hydrochloride
C8H9ClN2O2 (200.03525240000002)
2-Chloro-3-ethoxyphenylboronic acid
C8H10BClO3 (200.04114900000002)
Benzenemethanamine, 4-chloro-a-methyl-2-nitro-, (aR)
C8H9ClN2O2 (200.03525240000002)
5-(Aminomethyl)-1,3-benzoxazol-2(3H)-one hydrochloride (1:1)
C8H9ClN2O2 (200.03525240000002)
2-chloro-N-(6-methoxypyridin-3-yl)acetamide
C8H9ClN2O2 (200.03525240000002)
1,3-Dichloro-2-(acetoxymethoxy)propane
C6H10Cl2O3 (200.00069700000003)
4-CHLORO-2-(METHYLTHIO)PYRAZOLO[1,5-A][1,3,5]TRIAZINE
(4-CHLORO-5-METHYL-3-TRIFLUOROMETHYL-PYRAZOL-1-YL)-ACETICACID
Methyl 4,6-Dihydrothieno[3,4-b]thiophene-2-carboxylate
6-Chloro-N-methoxy-N-methylnicotinamide
C8H9ClN2O2 (200.03525240000002)
Ethyl 6-chloro-2-methylpyrimidine-4-carboxylate
C8H9ClN2O2 (200.03525240000002)
7-(CHLOROMETHYL)-5H-[1,3]THIAZOLO[3,2-A]PYRIMIDIN-5-ONE
2-Chlorophenoxyacetic Acid Hydrazide
C8H9ClN2O2 (200.03525240000002)
5-chloro-3-methylsulfanyl-2,4-diazabicyclo[4.3.0]nona-2,4,10-triene
2-Chloro-N-methoxy-N-methylpyridine-3-carboxamide
C8H9ClN2O2 (200.03525240000002)
ethyl 2-bromo-2-methyl-d3-propionate-3,3,3-d3
C6H5BrD6O2 (200.03189966800002)
ethyl 2-chloro-4-methylpyrimidine-5-carboxylate
C8H9ClN2O2 (200.03525240000002)
5-Pyrimidinecarboxylicacid, 1,2,3,4-tetrahydro-4-oxo-2-thioxo-, ethyl ester
butanoic acid, 4-chloro-4,4-difluoro-3-oxo, -ethyl ester
2-carboxymethylthio-6-methyl-3,4-dihydropyrimidin-4-one
(5,5-DIMETHYL-2,4-DIOXOIMIDAZOLIDIN-1-YL)-ACETIC ACID
N-[2-AMINO-1-(5-METHYL-2-FURYL)ETHYL]-N,N-DIMETHYLAMINE
2-(Chloromethyl)-3,5-dimethyl-4-nitropyridine
C8H9ClN2O2 (200.03525240000002)
6,7-DIHYDRO-4H-PYRAZOLO[5,1-C][1,4]THIAZINE-2-CARBALDEHYDE 5,5-DIOXIDE
Benzenamine,4-chloro-N-ethyl-2-nitro-
C8H9ClN2O2 (200.03525240000002)
4-CARBOXY-2-CHLOROPHENYLBORONIC ACID
C7H6BClO4 (200.00476559999998)
4-Chloro-3-(dihydroxyboryl)benzoic acid
C7H6BClO4 (200.00476559999998)
4,6-dihydroxy-4-(trifluoromethyl)tetrahydropyran-2-one
3-amino-1-hydroxy-3H-indol-2-one,hydrochloride
C8H9ClN2O2 (200.03525240000002)
ethyl 2-chloro-6-methylpyrimidine-4-carboxylate
C8H9ClN2O2 (200.03525240000002)
2-(Trimethylsilyl)ethanesulfonyl chloride
C5H13ClO2SSi (200.00940280000003)
ethyl 4-chloro-6-methylpyrimidine-5-carboxylate
C8H9ClN2O2 (200.03525240000002)
TRANS-2-CHLORO-6-FLUOROCINNAMIC ACID 9&
C9H6ClFO2 (200.00403380000003)
Methyl-thiazol-5-ylmethyl-amine dihydrochloride
C5H10Cl2N2S (199.99417200000002)
3-AMINO-3-(2-CHLORO-PYRIDIN-3-YL)-PROPIONIC ACID
C8H9ClN2O2 (200.03525240000002)
4-METHOXY-2-(METHYLTHIO)-5-PYRIMIDINECARBOXYLIC ACID
5-(Methoxycarbonyl)-4-methylthiophene-2-boronic acid
4-Pyridinecarboxylicacid, 2-amino-6-chloro-, ethyl ester
C8H9ClN2O2 (200.03525240000002)
Amidinouronium dihydrogen phosphate
C2H9N4O5P (200.03105539999999)
Ethyl 2-(4-chloropyrimidin-5-yl)acetate
C8H9ClN2O2 (200.03525240000002)
5,6-Difluoro-2-(methylsulfanyl)-1H-benzimidazole
C8H6F2N2S (200.02197399999997)
1,1,2,2-Tetrafluoroethyl 2,2,2-Trifluoroethyl Ether
Ethyl 4-chloro-2-methylpyrimidine-5-carboxylate
C8H9ClN2O2 (200.03525240000002)
2-Chloro-4-(dihydroxyboryl)benzoic acid
C7H6BClO4 (200.00476559999998)
(2E)-3-(4-Chloro-2-fluorophenyl)acrylic acid
C9H6ClFO2 (200.00403380000003)
5-AMINO-2-CHLORO-NICOTINIC ACID ETHYL ESTER
C8H9ClN2O2 (200.03525240000002)
6,7-DIFLUORO-2,3-DIHYDRO-4H-1-BENZOTHIOPYRAN-4-ONE
2-{[(2S)-2-hydroxypropyl]sulfanyl}ethanesulfonic acid
C5H12O4S2 (200.01769919999998)
Disodium tetrahydroxidodi-mu-peroxido-diborate
B2H4Na2O8 (199.98876840000003)
5-(5-Chlorothiophen-2-yl)-2-methyl-3,4-dihydropyrazole
1,2,3,4,7,7-Hexafluorobicyclo[2.2.1]hepta-2,5-diene
2-Thiophenecarboxylic acid, trimethylsilyl ester
C8H12O2SSi (200.03272520000002)
(E)-2-hydroxy-3-[(E)-3-oxobut-1-enyl]but-2-enedioic acid
(2Z,4E)-4-Hydroxy-6-oxo-2,4-octadienedioic acid
COVID info from COVID-19 Disease Map Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS
5-(2-Hydroxyethoxycarbonyl)furan-2-carboxylic acid
sevoflurane
D002491 - Central Nervous System Agents > D002492 - Central Nervous System Depressants > D000777 - Anesthetics N - Nervous system > N01 - Anesthetics > N01A - Anesthetics, general > N01AB - Halogenated hydrocarbons COVID info from clinicaltrial, clinicaltrials, clinical trial, clinical trials D006401 - Hematologic Agents > D010975 - Platelet Aggregation Inhibitors C78272 - Agent Affecting Nervous System > C245 - Anesthetic Agent Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS
D-Erythrose 4-phosphate
An erythrose phosphate that is D-erythrose carrying a phosphate group at position 4. It is an intermediate in the pentose phosphate pathway and Calvin cycle.
cis-4,5-Dihydroxycyclohexa-2,6-diene-1,2-dicarboxylic acid
(3S,4R)-3,4-dihydroxycyclohexa-1,5-diene-1,4-dicarboxylic acid
4-Vinylphenol sulfate
An aryl sulfate that is 4-hydroxystyrene in which the hydroxy group has been replaced by a sulfooxy group.
(2Z,4E)-4-hydroxy-6-oxoocta-2,4-dienedioic acid
An oxodicarboxylic acid that is a tautomer of 4-maleylacetoacetic acid in which the carbonyl of the alpha,beta-unsaturated ketone moiety has tautomerised to the corresponding enol (the 2Z,4E isomer).