Molecular formula
C18H13N3O3S
82 compounds have this formula on CompoundList.
- Molar mass
- 351.38g/mol
- Monoisotopic mass
- 351.0678Da
- Atoms
- 38
- Elements
- 5
- Rings plus double bonds
- 14
The formula C18H13N3O3S describes a molecule made of 18 carbon atoms, 13 hydrogen atoms, 3 nitrogen atoms, 3 oxygen atoms and 1 sulfur atom. It is written in Hill notation: carbon first, then hydrogen, then the other elements in alphabetical order. The formula tells you which atoms are present, not how they are connected, which is why several different chemicals can share it.
Elemental composition
- C Carbon × 1861.53%12.011 × 18 = 216.198 g/mol
- H Hydrogen × 133.73%1.008 × 13 = 13.104 g/mol
- N Nitrogen × 311.96%14.007 × 3 = 42.021 g/mol
- O Oxygen × 313.66%15.999 × 3 = 47.997 g/mol
- S Sulfur × 19.12%32.06 × 1 = 32.060 g/mol
Look up another formula
Compounds with the formula C18H13N3O3S
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 82 of 82 compounds
2-(1,3-Dioxo-2-isoindolyl)-N-(4-methyl-1,3-benzothiazol-2-yl)acetamide
CAS 477545-73-6C18H13N3O3S
N-(1,3-Benzothiazol-2-yl)-3-(1,3-dioxoisoindol-2-yl)propanamide
CAS 78220-98-1C18H13N3O3S
![N-[4-[5-(Furan-2-yl)-1,3,4-oxadiazol-2-yl]phenyl]-2-thiophen-2-ylacetamide chemical structure, C18H13N3O3S, CAS 380316-22-3](/s/MLWPYFCQQKEUSC-UHFFFAOYSA-N.svg)
N-[4-[5-(Furan-2-yl)-1,3,4-oxadiazol-2-yl]phenyl]-2-thiophen-2-ylacetamide
CAS 380316-22-3C18H13N3O3S
![N-[3-[5-(Furan-2-yl)-1,3,4-oxadiazol-2-yl]phenyl]-2-thiophen-2-ylacetamide chemical structure, C18H13N3O3S, CAS 305358-56-9](/s/HHFFXMSUGKOOFR-UHFFFAOYSA-N.svg)
N-[3-[5-(Furan-2-yl)-1,3,4-oxadiazol-2-yl]phenyl]-2-thiophen-2-ylacetamide
CAS 305358-56-9C18H13N3O3S
(E)-2-((4-Hydroxyphenyl)(methyl)amino)-5-(2-oxoindolin-3-ylidene)thiazol-4(5H)-one
CAS 405919-88-2C18H13N3O3S
N-(1,3-Benzothiazol-2-yl)-3-(2,5-dioxopyrrolidin-1-yl)benzamide
CAS 314043-88-4C18H13N3O3S
![N-(2-Methoxy-5-[1,3]oxazolo[4,5-b]pyridin-2-ylphenyl)-2-thiophenecarboxamide chemical structure, C18H13N3O3S, CAS 887691-67-0](/s/JZZMBXYIYQLMMV-UHFFFAOYSA-N.svg)
N-(2-Methoxy-5-[1,3]oxazolo[4,5-b]pyridin-2-ylphenyl)-2-thiophenecarboxamide
CAS 887691-67-0C18H13N3O3S
![N'-(4-Methylbenzo[d]thiazol-2-yl)-4-oxo-4H-chromene-2-carbohydrazide chemical structure, C18H13N3O3S, CAS 851977-98-5](/s/XZNZINRCDUVBMG-UHFFFAOYSA-N.svg)
N'-(4-Methylbenzo[d]thiazol-2-yl)-4-oxo-4H-chromene-2-carbohydrazide
CAS 851977-98-5C18H13N3O3S
![2-(o-Tolyl)-7,8-dihydro-1H-cyclopenta[d]pyrrolo[3',4':4,5]thiazolo[3,2-a]pyrimidine-1,3,9(2H,6H)-trione chemical structure, C18H13N3O3S, CAS 371117-04-3](/s/GYSBZJAKQUEIOW-UHFFFAOYSA-N.svg)
2-(o-Tolyl)-7,8-dihydro-1H-cyclopenta[d]pyrrolo[3',4':4,5]thiazolo[3,2-a]pyrimidine-1,3,9(2H,6H)-trione
CAS 371117-04-3C18H13N3O3S
![Methyl 6-oxo-3-phenyl-2H,6H-[1,3,4]thiadiazino[2,3-b]quinazoline-9-carboxylate chemical structure, C18H13N3O3S, CAS 892284-23-0](/s/SRJUCPRDDMEBDZ-UHFFFAOYSA-N.svg)
Methyl 6-oxo-3-phenyl-2H,6H-[1,3,4]thiadiazino[2,3-b]quinazoline-9-carboxylate
CAS 892284-23-0C18H13N3O3S
4,5-Diazafluorene-9-one O-(p-Toluenesulfonyl)oxime
CAS 1655490-79-1C18H13N3O3S
![N-(4-Hydroxy-3-methyl-5-[1,3]oxazolo[4,5-b]pyridin-2-ylphenyl)-2-thiophenecarboxamide chemical structure, C18H13N3O3S, CAS 895338-21-3](/s/DNVKJYHQGNGIIB-UHFFFAOYSA-N.svg)
N-(4-Hydroxy-3-methyl-5-[1,3]oxazolo[4,5-b]pyridin-2-ylphenyl)-2-thiophenecarboxamide
CAS 895338-21-3C18H13N3O3S
2-(2-Oxo-benzooxazol-3-yl)-N-(4-phenyl-thiazol-2-yl)-acetamide
CAS 663167-90-6C18H13N3O3S
RefChem:313865
CAS 50828-21-2C18H13N3O3S
2-(1,3-Dioxo-1,3-dihydro-2H-isoindol-2-yl)-N-(6-methyl-1,3-benzothiazol-2-yl)acetamide
CAS 349636-90-4C18H13N3O3S
N-(1,3-Benzothiazol-2-yl)-2-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)propanamide
CAS 316128-39-9C18H13N3O3S
2-Amino-6-(naphthalene-2-sulfonyl)quinazolin-4(1H)-one
CAS 52979-11-0C18H13N3O3S
![N-(5-Oxo-2-thiophen-2-ylchromeno[4,3-d]pyrimidin-4-yl)propanamide chemical structure, C18H13N3O3S, CAS 442870-21-5](/s/NHJAAYZFIWESBT-UHFFFAOYSA-N.svg)
N-(5-Oxo-2-thiophen-2-ylchromeno[4,3-d]pyrimidin-4-yl)propanamide
CAS 442870-21-5C18H13N3O3S
![5-(1,3-Benzodioxol-5-yl)-2-phenyl-5,6-dihydro-7H-[1,2,4]triazolo[5,1-b][1,3]thiazin-7-one chemical structure, C18H13N3O3S, CAS 384849-40-5](/s/CVWYSKLCXQRQPH-UHFFFAOYSA-N.svg)
5-(1,3-Benzodioxol-5-yl)-2-phenyl-5,6-dihydro-7H-[1,2,4]triazolo[5,1-b][1,3]thiazin-7-one
CAS 384849-40-5C18H13N3O3S
![N-(4-(Benzo[d]thiazol-2-yl)-3-hydroxyphenyl)-5-methylisoxazole-3-carboxamide chemical structure, C18H13N3O3S, CAS 946304-49-0](/s/JAPNHINQFWHVIN-UHFFFAOYSA-N.svg)
N-(4-(Benzo[d]thiazol-2-yl)-3-hydroxyphenyl)-5-methylisoxazole-3-carboxamide
CAS 946304-49-0C18H13N3O3S
![N-(4-Methoxyphenyl)-4-oxo-4H-[1,3]thiazino[3,2-a]benzimidazole-2-carboxamide chemical structure, C18H13N3O3S, CAS 383904-34-5](/s/UXASUSBPDXCKIK-UHFFFAOYSA-N.svg)
N-(4-Methoxyphenyl)-4-oxo-4H-[1,3]thiazino[3,2-a]benzimidazole-2-carboxamide
CAS 383904-34-5C18H13N3O3S
![2-([1]Benzofuro[3,2-d]pyrimidin-4-ylsulfanyl)-N-(3-hydroxyphenyl)acetamide chemical structure, C18H13N3O3S, CAS 848688-62-0](/s/ZXXJUSSVHKICFE-UHFFFAOYSA-N.svg)
2-([1]Benzofuro[3,2-d]pyrimidin-4-ylsulfanyl)-N-(3-hydroxyphenyl)acetamide
CAS 848688-62-0C18H13N3O3S
![N-[6-(Acetylamino)-1,3-benzothiazol-2-yl]-1-benzofuran-2-carboxamide chemical structure, C18H13N3O3S, CAS 708252-91-9](/s/RWIRAZMRWIINGF-UHFFFAOYSA-N.svg)
N-[6-(Acetylamino)-1,3-benzothiazol-2-yl]-1-benzofuran-2-carboxamide
CAS 708252-91-9C18H13N3O3S
5-Phenyl-N-((5-(thiophen-2-yl)isoxazol-3-yl)methyl)oxazole-2-carboxamide
CAS 1210492-60-6C18H13N3O3S
- (Z)-2-(1,3-Dioxoisoindolin-2-yl)-N-(3-methylbenzo[d]thiazol-2(3H)-ylidene)acetamide477545-74-7C18H13N3O3S
- N'-(4-Methylbenzo[d]thiazol-2-yl)-2-oxo-2H-chromene-3-carbohydrazide851977-99-6C18H13N3O3S
- N-(4-Methyl-3-prop-2-ynyl-1,3-benzothiazol-2-ylidene)-3-nitrobenzamide868376-93-6C18H13N3O3S
- 7-Methoxy-N-(4-(pyridin-4-yl)thiazol-2-yl)benzofuran-2-carboxamide921569-05-3C18H13N3O3S
- 3-[5-Amino-4-(1,3-benzothiazol-2-yl)-3-oxo-2,3-dihydro-1H-pyrrol-1-yl]benzoic acid379726-61-1C18H13N3O3S
- (Z)-3-(Benzo[d][1,3]dioxol-5-yl)-N-(4-(pyridin-3-yl)thiazol-2-yl)acrylamide1173316-70-5C18H13N3O3S
- 4-Cyano-N-(3-methyl-6,7-dihydro-[1,4]dioxino[2,3-f][1,3]benzothiazol-2-ylidene)benzamide1321980-34-0C18H13N3O3S
- (2E)-6,7-Dimethyl-2-(3-nitrobenzylidene)[1,3]thiazolo[3,2-a]benzimidazol-3(2H)-one34657-93-7C18H13N3O3S
- 3-(5-((4-Methoxyphenyl)amino)-1,3,4-thiadiazol-2-yl)-2H-chromen-2-one313243-01-5C18H13N3O3S
- N-(4,5-Dihydronaphtho[1,2-d][1,3]thiazol-2-yl)-4-nitrobenzamide300541-77-9C18H13N3O3S
- 4-[5-Amino-4-(1,3-benzothiazol-2-yl)-3-oxo-2,3-dihydro-1H-pyrrol-1-yl]benzoic acid610278-84-7C18H13N3O3S
- 2-(4-Oxo-5,6,7,8-tetrahydro-[1]benzothiolo[2,3-d]pyrimidin-3-yl)isoindole-1,3-dione303793-32-0C18H13N3O3S
- 2-(1,3-Dioxoisoindolin-2-yl)-N-(2-methylbenzo[d]thiazol-6-yl)acetamide315682-50-9C18H13N3O3S
- 2-[[5-(Furan-2-yl)-1,3,4-oxadiazol-2-yl]sulfanyl]-N-naphthalen-1-ylacetamide484646-02-8C18H13N3O3S
- (E)-3-(2-Nitrophenyl)-N-(4-phenyl-1,3-thiazol-2-yl)prop-2-enamide304685-16-3C18H13N3O3S
- N-{4H,5H-naphtho[1,2-d][1,3]thiazol-2-yl}-3-nitrobenzamide313404-70-5C18H13N3O3S
- N-(Naphthalen-1-ylcarbamothioyl)-2-nitrobenzamide501105-25-5C18H13N3O3S
- (2E)-6,7-Dimethyl-2-[(4-nitrophenyl)methylidene]-[1,3]thiazolo[3,2-a]benzimidazol-1-one34657-94-8C18H13N3O3S
- 2-((4-Oxo-3-phenyl-4,5-dihydro-3H-pyrimido[5,4-b]indol-2-yl)thio)acetic acid1438280-85-3C18H13N3O3S
- 4-Oxido-1-(pyridin-2-ylmethoxy)-3-thiophen-2-ylquinoxalin-4-ium-2-one371143-68-9C18H13N3O3S
- Imidazo(2,1-b)-1,3,4-thiadiazole, 2-(1,3-benzodioxol-5-yl)-6-(4-methoxyphenyl)-91918-66-0C18H13N3O3S
- Thiazolo(2,3-c)-1,2,4-triazole, 3-(1,3-benzodioxol-5-yl)-5-(4-methoxyphenyl)-140424-04-0C18H13N3O3S
- N~2~-[2-(1,3-benzothiazol-2-ylamino)-2-oxoethyl]-1-benzofuran-2-carboxamide951941-33-6C18H13N3O3S
- 7-(Furan-2-yl)-2-methyl-5-(2-oxo-2-phenylethyl)-4H,5H-[1,3]thiazolo[4,5-d]pyridazin-4-one946265-70-9C18H13N3O3S
- Phenyl (3-(benzyloxy)-4-cyanoisothiazol-5-yl)carbamate252004-29-8C18H13N3O3S
- N-(1,3-Benzothiazol-2-yl)-4-hydroxy-1-methyl-2-oxo-1,2-dihydroquinoline-3-carboxamide303093-32-5C18H13N3O3S
- N-(Benzo[d]thiazol-2-yl)-3-(benzyloxy)isoxazole-5-carboxamide1448133-14-9C18H13N3O3S
- N-[(4-Nitrophenyl)carbamothioyl]naphthalene-1-carboxamide304677-53-0C18H13N3O3S
- Thiazolo(3,2-b)(1,2,4)triazole, 3-(1,3-benzodioxol-5-yl)-6-(4-methoxyphenyl)-140405-80-7C18H13N3O3S
- N-(4,5-Dihydronaphtho[1,2-d]thiazol-2-yl)-2-nitrobenzamide378200-05-6C18H13N3O3S
- 3-Methoxy-N-(5-(thiophen-2-yl)-1,3,4-oxadiazol-2-yl)-2-naphthamide941997-91-7C18H13N3O3S
- 4-{(E)-[2-(Pyridin-4-ylcarbonyl)hydrazinylidene]methyl}phenyl thiophene-2-carboxylate341985-83-9C18H13N3O3S
- N'-(6-Methylbenzo[d]thiazol-2-yl)-2-oxo-2H-chromene-3-carbohydrazide851979-59-4C18H13N3O3S
- (Z)-3-(Benzo[d][1,3]dioxol-5-yl)-N-(5-phenyl-1,3,4-thiadiazol-2-yl)acrylamide476463-08-8C18H13N3O3S
- 2-(2-(1H-Pyrrol-1-yl)thiazol-4-yl)-N-(2-oxo-2H-chromen-3-yl)acetamide1171210-32-4C18H13N3O3S
- N-((6-(Furan-3-yl)pyridin-3-yl)methyl)-5-(thiophen-2-yl)isoxazole-3-carboxamide2327752-96-3C18H13N3O3S
- N-(4-(Benzo[d]thiazol-2-yl)-3-hydroxyphenyl)-3-methylisoxazole-5-carboxamide946285-91-2C18H13N3O3S
- N-(4-Methyl-3-prop-2-ynyl-1,3-benzothiazol-2-ylidene)-2-nitrobenzamide868674-53-7C18H13N3O3S
- Ethyl 2-(4-cyanobenzamido)benzo[d]thiazole-6-carboxylate888409-32-3C18H13N3O3S
- N-(Benzo[d]thiazol-2-yl)-5-(4-methoxyphenyl)oxazole-2-carboxamide955631-65-9C18H13N3O3S
- N-(5-(Benzofuran-2-yl)-1,3,4-oxadiazol-2-yl)-2-(phenylthio)acetamide922099-71-6C18H13N3O3S
- 2-Oxo-N-[1-(thiophen-2-ylmethyl)-1H-pyrazol-5-yl]-2H-chromene-3-carboxamide1170057-18-7C18H13N3O3S
- Methyl 6-(1,3-benzothiazol-2-yl)-2-methyl-5-oxo-5,6-dihydro-1,6-naphthyridine-3-carboxylate1010871-74-5C18H13N3O3S
- N-(2-((3-(Furan-2-yl)-1,2,4-oxadiazol-5-yl)methyl)phenyl)thiophene-3-carboxamide1797960-11-2C18H13N3O3S
- N-(2-((3-(Thiophen-2-yl)-1,2,4-oxadiazol-5-yl)methyl)phenyl)furan-2-carboxamide1797076-97-1C18H13N3O3S
- N-((6-(Furan-2-yl)pyridin-3-yl)methyl)-5-(thiophen-2-yl)isoxazole-3-carboxamide1903484-83-2C18H13N3O3S
- Phenyl(5-cyano-4-(thiophen-2-ylmethoxy)pyridin-2-yl)carbamate1708976-65-1C18H13N3O3S
- N-(3-(Benzo[d]thiazol-2-yl)-4-hydroxyphenyl)-3-methylisoxazole-5-carboxamide953234-76-9C18H13N3O3S
- N-(Naphthalen-2-ylcarbamothioyl)-2-nitrobenzamide428472-15-5C18H13N3O3S
- N-[(3-Nitrophenyl)carbamothioyl]naphthalene-1-carboxamide304677-55-2C18H13N3O3S
- 3-{(E)-[2-(Pyridin-4-ylcarbonyl)hydrazinylidene]methyl}phenyl thiophene-2-carboxylate341985-85-1C18H13N3O3S
- N-(Benzo[d]thiazol-6-yl)-4-(2,5-dioxopyrrolidin-1-yl)benzamide922920-12-5C18H13N3O3S
- 5-(Furan-2-yl)-N-(2-(2-methylthiazol-4-yl)phenyl)isoxazole-3-carboxamide1797642-02-4C18H13N3O3S
- N-(Naphthalen-2-ylcarbamothioyl)-3-nitrobenzamide364615-04-3C18H13N3O3S
- N-(6-Methoxybenzo[d]thiazol-2-yl)-2-oxo-1,2-dihydroquinoline-4-carboxamide849009-93-4C18H13N3O3S
- 1-Amino-2-methoxy-4-[(1,3-thiazol-2-yl)amino]anthracene-9,10-dione62593-07-1C18H13N3O3S
- 6-Cyano-N-(3-phenoxyphenyl)pyridine-3-sulfonamide2305420-34-0C18H13N3O3S
- 4-[(E)-(5-Aminoacenaphthylen-4-yl)diazenyl]benzene-1-sulfonic acid144169-89-1C18H13N3O3S
Frequently asked questions
What is the molar mass of C18H13N3O3S?
The molar mass of C18H13N3O3S is 351.38 g/mol, calculated from standard atomic weights for 18 carbon atoms, 13 hydrogen atoms, 3 nitrogen atoms, 3 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 351.0678 Da.
How many compounds have the formula C18H13N3O3S?
CompoundList lists 82 compounds with the molecular formula C18H13N3O3S, including 2-(1,3-Dioxo-2-isoindolyl)-N-(4-methyl-1,3-benzothiazol-2-yl)acetamide, N-(1,3-Benzothiazol-2-yl)-3-(1,3-dioxoisoindol-2-yl)propanamide, N-[4-[5-(Furan-2-yl)-1,3,4-oxadiazol-2-yl]phenyl]-2-thiophen-2-ylacetamide. Compounds that share a formula are isomers. They contain the same atoms arranged differently, so their properties, uses and prices can be very different.
What is the degree of unsaturation of C18H13N3O3S?
C18H13N3O3S has a degree of unsaturation of 14. That is the total number of rings and pi bonds (a double bond counts as one, a triple bond as two) in any structure with this formula.