Molecular formula
C18H17NO4S
151 compounds have this formula on CompoundList.
- Molar mass
- 343.40g/mol
- Monoisotopic mass
- 343.0878Da
- Atoms
- 41
- Elements
- 5
- Rings plus double bonds
- 11
The formula C18H17NO4S describes a molecule made of 18 carbon atoms, 17 hydrogen atoms, 1 nitrogen atom, 4 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 × 1862.96%12.011 × 18 = 216.198 g/mol
- H Hydrogen × 174.99%1.008 × 17 = 17.136 g/mol
- N Nitrogen × 14.08%14.007 × 1 = 14.007 g/mol
- O Oxygen × 418.64%15.999 × 4 = 63.996 g/mol
- S Sulfur × 19.34%32.06 × 1 = 32.060 g/mol
Look up another formula
Compounds with the formula C18H17NO4S
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 151 compounds
![3-[3-(1,3-Dioxo-2-benzo[de]isoquinolinyl)propylthio]propanoic acid chemical structure, C18H17NO4S, CAS 325850-86-0](/s/GTKXGZUMBCLIJE-UHFFFAOYSA-N.svg)
3-[3-(1,3-Dioxo-2-benzo[de]isoquinolinyl)propylthio]propanoic acid
CAS 325850-86-0C18H17NO4S
(5-Hydroxy-4-morpholin-4-ylmethyl-benzofuran-3-yl)-thiophen-2-yl-methanone
CAS 296792-83-1C18H17NO4S
(2S)-cis-3-(Acetyloxy)-2,3-dihydro-2-(4-methoxyphenyl)-1,5-benzothiazepin-4(5H)-one
CAS 87447-47-0C18H17NO4S
![2-[(E)-2-Phenylethenyl]sulfonyl-3,4-dihydro-1H-isoquinoline-3-carboxylic acid chemical structure, C18H17NO4S, CAS 1097205-19-0](/s/MRCGREOYPXYTQL-ZHACJKMWSA-N.svg)
2-[(E)-2-Phenylethenyl]sulfonyl-3,4-dihydro-1H-isoquinoline-3-carboxylic acid
CAS 1097205-19-0C18H17NO4S
![6-Ethoxy-7-methoxy-2-[2-(methylsulfanyl)phenyl]-4H-3,1-benzoxazin-4-one chemical structure, C18H17NO4S, CAS 1087624-28-9](/s/JTQBMTFVGGUDPN-UHFFFAOYSA-N.svg)
6-Ethoxy-7-methoxy-2-[2-(methylsulfanyl)phenyl]-4H-3,1-benzoxazin-4-one
CAS 1087624-28-9C18H17NO4S
N-(3-Acetyl-2-methyl-1-benzofuran-5-yl)-4-methylbenzenesulfonamide
CAS 49793-88-6C18H17NO4S
![2-{[((1E)-2-Phenylvinyl)sulfonyl]prop-2-enylamino}benzoic acid chemical structure, C18H17NO4S, CAS 326013-20-1](/s/FVHRHJBBJASQDU-WYMLVPIESA-N.svg)
2-{[((1E)-2-Phenylvinyl)sulfonyl]prop-2-enylamino}benzoic acid
CAS 326013-20-1C18H17NO4S
Fmoc-L-cysteine
CAS 135248-89-4C18H17NO4S
2,5-Dimethoxy-N-(1-naphthyl)benzenesulfonamide
CAS 692761-67-4C18H17NO4S
N-(1,1-Dioxido-2,3-dihydrothien-3-yl)-3-methoxy-N-phenylbenzamide
CAS 852438-70-1C18H17NO4S
Methyl 3-(2-(naphthalen-2-yloxy)acetamido)-4,5-dihydrothiophene-2-carboxylate
CAS 476463-85-1C18H17NO4S
6-Ethoxy-3-(4-methylphenyl)sulfonyl-1H-quinolin-4-one
CAS 866812-28-4C18H17NO4S
3-(2-Hydroxyethylsulfanyl)-1-(4-phenoxyphenyl)pyrrolidine-2,5-dione
CAS 677734-73-5C18H17NO4S
3-Hydroxy-1-(2-methoxyethyl)-5-phenyl-4-(2-thienylcarbonyl)-3-pyrrolin-2-one
CAS 384797-29-9C18H17NO4S
![3-[(4-Ethoxyphenyl)sulfonyl]-6-methylquinolin-4(1H)-one chemical structure, C18H17NO4S, CAS 895652-45-6](/s/ZNHQNYOOFNWNNF-UHFFFAOYSA-N.svg)
3-[(4-Ethoxyphenyl)sulfonyl]-6-methylquinolin-4(1H)-one
CAS 895652-45-6C18H17NO4S
![(2E)-3-[3-(2,3-Dihydro-1H-indol-1-ylsulfonyl)-4-methylphenyl]prop-2-enoic acid chemical structure, C18H17NO4S, CAS 327093-64-1](/s/BREQZOXPJPXXRJ-CMDGGOBGSA-N.svg)
(2E)-3-[3-(2,3-Dihydro-1H-indol-1-ylsulfonyl)-4-methylphenyl]prop-2-enoic acid
CAS 327093-64-1C18H17NO4S
N-tert-Butyl-9,10-dioxoanthracene-2-sulfonamide
CAS 401629-49-0C18H17NO4S
Nod-IN-1
CAS 132819-92-2C18H17NO4S
4-Benzoyl-N-(1,1-dioxo-1lambda6-thiolan-3-yl)benzamide
CAS 303226-08-6C18H17NO4S
3-((3,4-Dimethylphenyl)sulfonyl)-6-methoxyquinolin-4(1H)-one
CAS 902506-41-6C18H17NO4S
3-((4-Ethoxyphenyl)sulfonyl)-1-methylquinolin-4(1H)-one
CAS 899215-08-8C18H17NO4S
3-(4-Methoxybenzenesulfonyl)-1,6-dimethyl-1,4-dihydroquinolin-4-one
CAS 899214-30-3C18H17NO4S
3-(4-Methylthiazol-2-yl)-2-oxo-2H-chromen-7-yl pivalate
CAS 573696-09-0C18H17NO4S
N-(2,5-Dimethoxyphenyl)naphthalene-1-sulfonamide
CAS 132443-52-8C18H17NO4S
- 1H-Indole-3-carboxylic acid, 1-(phenylsulfonyl)-, 1-methylethyl ester540740-39-4C18H17NO4S
- 12-(Benzenesulfonyl)-9-methyl-8-oxa-10-azatricyclo[7.3.1.0^{2,7}]trideca-2,4,6-trien-11-one1007928-70-2C18H17NO4S
- 3-(Ethoxycarbonyl)-1,2-dimethylindol-5-yl thiophene-2-carboxylate923250-22-0C18H17NO4S
- 2-{[3-(4-Methoxyphenyl)acryloyl]amino}-5,6-dihydro-4H-cyclopenta[b]thiophene-3-carboxylic acid312584-61-5C18H17NO4S
- Ethyl 2-(benzoylamino)-7-oxo-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxylate96334-43-9C18H17NO4S
- N-(1-Benzothiophen-5-yl)-3,4,5-trimethoxybenzamide477502-71-9C18H17NO4S
- 2,5-Dimethoxy-N-(naphthalen-2-yl)benzene-1-sulfonamide902705-09-3C18H17NO4S
- (5-(Thiophen-2-yl)isoxazol-3-yl)methyl 3-(4-methoxyphenyl)propanoate946286-72-2C18H17NO4S
- 1 suppliersN-Fmoc-D-cysteine157355-80-1C18H17NO4S
- 4-(5,5-Dimethyl-4-oxo-3-phenyl-4,5-dihydrofuran-2-yl)benzenesulfonamide301692-84-2C18H17NO4S
- 3-(3-Methoxyphenyl)-5-(4-morpholinyl)-7H-thieno[3,2-b]pyran-7-one1174428-48-8C18H17NO4S
- Ethyl 4-(5-methyl-3-phenylisoxazol-4-yl)benzenesulfonate1884279-18-8C18H17NO4S
- Ethyl 4-ethynyl-2-(2-(4-methoxyphenyl)acetamido)thiophene-3-carboxylate1292805-16-3C18H17NO4S
- 2-Naphthalenesulfonic acid, 6-((2,6-dimethylphenyl)amino)-4-hydroxy-23973-67-3C18H17NO4S
- 2-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-3-sulfanylpropanoic acid157355-77-6C18H17NO4S
- 2-Methylquinolin-8-yl 2-methoxy-4-methylbenzenesulfonate428463-23-4C18H17NO4S
- N-(1,1-Dioxido-2,3-dihydrothiophen-3-yl)-N-(4-phenoxyphenyl)acetamide342390-68-5C18H17NO4S
- Ethyl 2-[(1-benzofuran-2-ylcarbonyl)amino]-4,5-dimethylthiophene-3-carboxylate302803-44-7C18H17NO4S
- (2-Methylquinolin-8-yl) 2-methoxy-5-methylbenzenesulfonate325992-12-9C18H17NO4S
- N,N-Diethyl-9,10-dioxo-9,10-dihydroanthracene-2-sulfonamide438541-05-0C18H17NO4S
- N-(1,1-Dioxido-2,3-dihydrothiophen-3-yl)-2-methoxy-N-phenylbenzamide852438-69-8C18H17NO4S
- 6-Ethyl-2-methyl-3-(4-methylthiazol-2-yl)-4-oxo-4H-chromen-7-yl acetate374700-64-8C18H17NO4S
- 4-[(4-Methylphenyl)sulfanyl]-3-nitrobenzyl cyclopropanecarboxylate320424-05-3C18H17NO4S
- (Z)-6-Hydroxy-7-(morpholinomethyl)-2-(thiophen-2-ylmethylene)benzofuran-3(2H)-one896815-81-9C18H17NO4S
- (Z)-3-Oxo-2-(thiophen-2-ylmethylene)-2,3-dihydrobenzofuran-6-yl diethylcarbamate623116-41-6C18H17NO4S
- 4-Ethoxy-N-(3-hydroxyphenyl)naphthalene-1-sulfonamide313957-54-9C18H17NO4S
- (4Z)-4-[(3,4-Diethoxyphenyl)methylidene]-2-thiophen-2-yl-1,3-oxazol-5-one377056-57-0C18H17NO4S
- (Z)-3-(2,4-Dimethoxyphenyl)-2-(4-methylphenyl)sulfonylprop-2-enenitrile531494-16-3C18H17NO4S
- 3-Hydroxy-4-(methanesulfonyl)-5-(4-methylphenyl)-1-phenyl-1,5-dihydro-2H-pyrrol-2-one5802-06-2C18H17NO4S
- 4-Ethoxy-N-(4-hydroxyphenyl)naphthalene-1-sulfonamide313957-51-6C18H17NO4S
- N-(2-Furylmethyl)-3-(2-naphthylsulfonyl)propanamide832145-31-0C18H17NO4S
- 8-Methoxy-2-oxo-N-(1-(thiophen-2-yl)propan-2-yl)-2H-chromene-3-carboxamide1209157-55-0C18H17NO4S
- 1-[2-(4-Methoxyphenyl)-2-oxoethyl]-4-(thiophen-2-yl)piperidine-2,6-dione1396861-71-4C18H17NO4S
- N-(4-(6,7-Dimethyl-4-oxo-4H-chromen-3-yl)phenyl)methanesulfonamide2034153-32-5C18H17NO4S
- 2-(4-Methylbenzenesulfonyl)-2,3-dihydro-1H-2-benzazepine-4-carboxylic acid2193067-99-9C18H17NO4S
- 8-Methoxy-2-(4-methylphenyl)sulfonyl-1H-2-benzazepin-5-one25894-76-2C18H17NO4S
- Ethyl 2-(2,5-dioxopyrrolidin-1-yl)-4-(4-methylphenyl)thiophene-3-carboxylate380643-99-2C18H17NO4S
- (Z)-2-(Benzenesulfonyl)-3-[4-methoxy-3-(methoxymethyl)phenyl]prop-2-enenitrile706772-59-0C18H17NO4S
- 2-Methyl-8-quinolyl 4-ethoxybenzenesulfonate333311-22-1C18H17NO4S
- N-(3-Acetyl-2,6-dimethyl-1-benzofuran-5-yl)benzenesulfonamide848334-69-0C18H17NO4S
- 6-Methoxy-1-methyl-3-(4-methylbenzenesulfonyl)-1,4-dihydroquinolin-4-one899214-73-4C18H17NO4S
- 3-(2-Methyl-1,3-thiazol-4-yl)-2-oxo-2H-chromen-7-yl pentanoate1010921-92-2C18H17NO4S
- 3-(2-Methyl-1,3-thiazol-4-yl)-2-oxo-2H-chromen-7-yl 3-methylbutanoate1010887-03-2C18H17NO4S
- Methyl 4-(3,4-dimethylphenyl)-4H-1,4-benzothiazine-2-carboxylate 1,1-dioxide1291871-11-8C18H17NO4S
- Methyl 4-(4-ethylphenyl)-4H-1,4-benzothiazine-2-carboxylate 1,1-dioxide1291867-70-3C18H17NO4S
- Methyl 4-(3-ethylphenyl)-4H-1,4-benzothiazine-2-carboxylate 1,1-dioxide1291842-03-9C18H17NO4S
- 2-[1-(2-Phenylethenesulfonyl)-2,3-dihydro-1H-indol-3-yl]acetic acid1356809-70-5C18H17NO4S
- Quinolin-8-yl 2-ethoxy-5-methylbenzenesulfonate791843-86-2C18H17NO4S
- (4Z)-4-[(3-Methoxy-4-propoxyphenyl)methylidene]-2-thiophen-2-yl-1,3-oxazol-5-one377051-64-4C18H17NO4S
- Benzoic acid, 2-(2-(2-hydroxy-5-methylphenyl)-2-methyl-4-oxo-3-thiazolidinyl)-60121-35-9C18H17NO4S
- N-Butyl-9,10-dioxo-9,10-dihydroanthracene-2-sulfonamide299965-49-4C18H17NO4S
- 4-((4-Acetylphenyl)amino)-3-(phenylsulfonyl)but-3-EN-2-one1025281-03-1C18H17NO4S
- Quinolinium, 4-formyl-1-methyl-, 4-methylbenzenesulfonate (1:1)223398-02-5C18H17NO4S
- Ethyl 2-methyl-1,1-dioxo-4-phenyl-2H-1lambda6,2-benzothiazine-3-carboxylate1291866-09-5C18H17NO4S
- Methyl 4-(2,3-dimethylphenyl)-4H-1,4-benzothiazine-2-carboxylate 1,1-dioxide1358356-20-3C18H17NO4S
- Benzyl 2-(2,6-dioxo-4-(thiophen-2-yl)piperidin-1-yl)acetate1421584-52-2C18H17NO4S
- Quinolin-8-yl 4-methoxy-2,5-dimethylbenzene-1-sulfonate1903684-23-0C18H17NO4S
- (E)-N-[2,2-Bis(furan-2-yl)ethyl]-2-phenylethene-1-sulfonamide2210223-26-8C18H17NO4S
- Acetamide, N-(9-oxo-7-propyl-9H-thioxanthen-3-yl)-, S,S-dioxide74134-19-3C18H17NO4S
- 3-Acetyl-4-phenyl-1-(phenylsulfonyl)pyrrolidin-2-one5828-59-1C18H17NO4S
- 1-(3,4-Diethoxybenzoyl)benzo[c]isothiazol-3(1H)-one877811-77-3C18H17NO4S
- 1'-(Phenylsulfonyl)-3H-spiro[isobenzofuran-1,4'-piperidin]-3-one1797642-35-3C18H17NO4S
- 1'-(Benzenesulfonyl)-3H-spiro[2-benzofuran-1,3'-piperidine]-3-one1797891-05-4C18H17NO4S
- N-((5-(Furan-2-yl(hydroxy)methyl)thiophen-2-yl)methyl)-2-phenoxyacetamide1795442-19-1C18H17NO4S
- N-((5-(Furan-2-yl(hydroxy)methyl)thiophen-2-yl)methyl)-2-methoxybenzamide1798459-05-8C18H17NO4S
- N-(2-(Furan-2-yl)-2-hydroxy-2-(thiophen-2-yl)ethyl)-2-phenoxyacetamide2034398-78-0C18H17NO4S
- N-(2-(Furan-2-yl)-2-hydroxy-2-(thiophen-2-yl)ethyl)-2-methoxybenzamide2034483-98-0C18H17NO4S
- N-[2-(Furan-2-yl)-2-hydroxy-2-(thiophen-3-yl)ethyl]-2-phenoxyacetamide2034482-66-9C18H17NO4S
- N-[2-(Furan-2-yl)-2-hydroxy-2-(thiophen-3-yl)ethyl]-2-methoxybenzamide2034396-67-1C18H17NO4S
- [5-Hydroxy-4-(morpholin-4-ylmethyl)-1-benzofuran-3-yl](thiophen-3-yl)methanone1676079-33-6C18H17NO4S
- N-(4-(7,8-Dimethyl-4-oxo-4H-chromen-3-yl)phenyl)methanesulfonamide2034155-31-0C18H17NO4S
- 2-(2-Methoxyphenoxy)-N-((5-(thiophen-2-yl)furan-2-yl)methyl)acetamide2034403-98-8C18H17NO4S
- 2-(2-Methoxyphenoxy)-N-((5-(thiophen-3-yl)furan-2-yl)methyl)acetamide2034339-99-4C18H17NO4S
- N-[2-(Furan-3-yl)-2-hydroxy-2-(thiophen-2-yl)ethyl]-2-phenoxyacetamide2034335-45-8C18H17NO4S
- N-(2-(Furan-3-yl)-2-hydroxy-2-(thiophen-2-yl)ethyl)-2-methoxybenzamide2034634-03-0C18H17NO4S
- N-{2-Hydroxy-2-[5-(thiophen-3-yl)furan-2-yl]ethyl}-2-phenoxyacetamide2034343-96-7C18H17NO4S
Frequently asked questions
What is the molar mass of C18H17NO4S?
The molar mass of C18H17NO4S is 343.40 g/mol, calculated from standard atomic weights for 18 carbon atoms, 17 hydrogen atoms, 1 nitrogen atom, 4 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 343.0878 Da.
How many compounds have the formula C18H17NO4S?
CompoundList lists 151 compounds with the molecular formula C18H17NO4S, including 3-[3-(1,3-Dioxo-2-benzo[de]isoquinolinyl)propylthio]propanoic acid, (5-Hydroxy-4-morpholin-4-ylmethyl-benzofuran-3-yl)-thiophen-2-yl-methanone, (2S)-cis-3-(Acetyloxy)-2,3-dihydro-2-(4-methoxyphenyl)-1,5-benzothiazepin-4(5H)-one. 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 C18H17NO4S?
C18H17NO4S has a degree of unsaturation of 11. 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.