Molecular formula
C18H17NO2S
91 compounds have this formula on CompoundList.
- Molar mass
- 311.40g/mol
- Monoisotopic mass
- 311.0980Da
- Atoms
- 39
- Elements
- 5
- Rings plus double bonds
- 11
The formula C18H17NO2S describes a molecule made of 18 carbon atoms, 17 hydrogen atoms, 1 nitrogen atom, 2 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 × 1869.43%12.011 × 18 = 216.198 g/mol
- H Hydrogen × 175.50%1.008 × 17 = 17.136 g/mol
- N Nitrogen × 14.50%14.007 × 1 = 14.007 g/mol
- O Oxygen × 210.28%15.999 × 2 = 31.998 g/mol
- S Sulfur × 110.30%32.06 × 1 = 32.060 g/mol
Look up another formula
Compounds with the formula C18H17NO2S
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 91 of 91 compounds
4-(5-Butyl-thiophen-2-ylmethylene)-3-phenyl-4H-isoxazol-5-one
CAS 1164482-59-0C18H17NO2S
4-Methyl-N-(6-methyl-4-oxo-3,4-dihydro-2H-thiochromen-3-yl)benzenecarboxamide
CAS 692738-26-4C18H17NO2S
N-Benzyl-2-methoxynaphthalene-1-sulfinamide
CAS 477714-09-3C18H17NO2S
3-Methyl-N-(6-methyl-4-oxo-3,4-dihydro-2H-thiochromen-3-yl)benzenecarboxamide
CAS 866144-22-1C18H17NO2S
![N-[4-[(E)-3-(4-Methylsulfanylphenyl)prop-2-enoyl]phenyl]acetamide chemical structure, C18H17NO2S, CAS 1164484-64-3](/s/PKOXXAICRGKARL-LFYBBSHMSA-N.svg)
N-[4-[(E)-3-(4-Methylsulfanylphenyl)prop-2-enoyl]phenyl]acetamide
CAS 1164484-64-3C18H17NO2S
N-Ethyl-N-phenylnaphthalene-2-sulfonamide
CAS 132725-81-6C18H17NO2S
![N-Methyl-N-[(4-methylsulfanylphenyl)methyl]-1-benzofuran-2-carboxamide chemical structure, C18H17NO2S, CAS 852867-95-9](/s/LRANEEDYCQWLBN-UHFFFAOYSA-N.svg)
N-Methyl-N-[(4-methylsulfanylphenyl)methyl]-1-benzofuran-2-carboxamide
CAS 852867-95-9C18H17NO2S
![6-Methyl-4-{[(4-methylbenzoyl)oxy]imino}thiochromane chemical structure, C18H17NO2S, CAS 383145-43-5](/s/GUMJUHLIYYTNJZ-KNTRCKAVSA-N.svg)
6-Methyl-4-{[(4-methylbenzoyl)oxy]imino}thiochromane
CAS 383145-43-5C18H17NO2S
![N-[1-(Naphthalen-1-yl)ethyl]benzenesulfonamide chemical structure, C18H17NO2S, CAS 305848-98-0](/s/FYYCWPDVKTYDAZ-UHFFFAOYSA-N.svg)
N-[1-(Naphthalen-1-yl)ethyl]benzenesulfonamide
CAS 305848-98-0C18H17NO2S
3,5-Dimethyl-N-(2-(methylthio)phenyl)benzofuran-2-carboxamide
CAS 890603-52-8C18H17NO2S
![6-Methyl-4-{[(3-methylbenzoyl)oxy]imino}thiochromane chemical structure, C18H17NO2S, CAS 383145-50-4](/s/BLMQMBFIZJYFPY-KNTRCKAVSA-N.svg)
6-Methyl-4-{[(3-methylbenzoyl)oxy]imino}thiochromane
CAS 383145-50-4C18H17NO2S
![1-Phenyl-2-methyl-5-[4-(methylsulfonyl)phenyl]-1H-pyrrole chemical structure, C18H17NO2S, CAS 189500-94-5](/s/VKXXAEDUKIIITF-UHFFFAOYSA-N.svg)
1-Phenyl-2-methyl-5-[4-(methylsulfonyl)phenyl]-1H-pyrrole
CAS 189500-94-5C18H17NO2S
![1-([1,1'-Biphenyl]-4-yl)-2-morpholino-2-thioxoethan-1-one chemical structure, C18H17NO2S, CAS 1033590-36-1](/s/ZFPKMDOCVBNFGX-UHFFFAOYSA-N.svg)
1-([1,1'-Biphenyl]-4-yl)-2-morpholino-2-thioxoethan-1-one
CAS 1033590-36-1C18H17NO2S
2-(5-Ethylthien-2-yl)-6,8-dimethylquinoline-4-carboxylic acid
CAS 438230-08-1C18H17NO2S
2,10-Dipropionyl-10H-phenothiazine
CAS 93963-98-5C18H17NO2S
N-(1-Phenylethyl)naphthalene-2-sulfonamide
CAS 1160-93-6C18H17NO2S
RefChem:381309
CAS 90252-69-0C18H17NO2S
![2-(3-Methylphenyl)-6,7,8,9-tetrahydro-4H,5H-cyclohepta[4,5]thieno[2,3-d][1,3]oxazin-4-one chemical structure, C18H17NO2S, CAS 312949-51-2](/s/QWEIJOXSWGAPCM-UHFFFAOYSA-N.svg)
2-(3-Methylphenyl)-6,7,8,9-tetrahydro-4H,5H-cyclohepta[4,5]thieno[2,3-d][1,3]oxazin-4-one
CAS 312949-51-2C18H17NO2S
N-Phenethylnaphthalene-2-sulfonamide
CAS 75115-36-5C18H17NO2S
2-(5-Ethylthiophen-2-yl)-7,8-dimethylquinoline-4-carboxylic acid
CAS 895966-56-0C18H17NO2S
6-Ethyl-2-(5-ethylthiophen-2-yl)quinoline-4-carboxylic acid
CAS 862647-82-3C18H17NO2S
![2-(4-Methylphenyl)-6,7,8,9-tetrahydro-4H,5H-cyclohepta[4,5]thieno[2,3-d][1,3]oxazin-4-one chemical structure, C18H17NO2S, CAS 362491-66-5](/s/PHCUXIJAJXLQQZ-UHFFFAOYSA-N.svg)
2-(4-Methylphenyl)-6,7,8,9-tetrahydro-4H,5H-cyclohepta[4,5]thieno[2,3-d][1,3]oxazin-4-one
CAS 362491-66-5C18H17NO2S
RefChem:381273
CAS 86328-84-9C18H17NO2S
2,5-Dimethyl-N-(1-naphthyl)benzenesulfonamide
CAS 61296-31-9C18H17NO2S
- 5-Benzothiazoleacetic acid, 2-(p-cumenyl)-36782-45-3C18H17NO2S
- N-(4-Methylbenzyl)-2-naphthalenesulfonamide321721-67-9C18H17NO2S
- 4H-1,4-Benzothiazine-2-carboxylic acid, 4-methyl-3-phenyl-, ethyl ester92979-00-5C18H17NO2S
- N-(2,3-Dimethylphenyl)naphthalene-2-sulfonamide415691-23-5C18H17NO2S
- 2-Thiophenecarboxamide, N-(2-(7-methoxy-1-naphthalenyl)ethyl)-138112-93-3C18H17NO2S
- Benzofuran-2-yl(4-(thiophen-2-yl)piperidin-1-yl)methanone1396868-98-6C18H17NO2S
- 6-Benzothiazoleacetic acid, 2-(p-cumenyl)-36782-58-8C18H17NO2S
- 2H-1,4-Benzothiazine-2-carboxylic acid, 2-methyl-3-phenyl-, ethyl ester92978-99-9C18H17NO2S
- 2,4-Dimethyl-N-(1-naphthyl)benzenesulfonamide406473-43-6C18H17NO2S
- 2-Phenyl-5-propanoyl-2,3-dihydro-1,5-benzothiazepin-4(5H)-one109532-92-5C18H17NO2S
- N-(Benzo[b]thiophen-5-yl)-2-(4-methoxy-3-methylphenyl)acetamide955852-16-1C18H17NO2S
- 1-Isoquinolinemethanol,a-[(methylsulfinyl)methyl]-a-phenyl-10349-56-1C18H17NO2S
- Butyl 2-thiophen-2-ylquinoline-4-carboxylate497867-09-1C18H17NO2S
- 2-[4-(tert-Butyl)phenyl]-4-(2-thienylmethylene)-1,3-oxazolin-5-one312724-83-7C18H17NO2S
- 7-Methyl-2-(2-methylphenyl)-5,6,7,8-tetrahydro-4H-[1]benzothieno[2,3-d][1,3]oxazin-4-one332383-61-6C18H17NO2S
- Ethyl 2-amino-5-(naphthalen-1-ylmethyl)thiophene-3-carboxylate216686-54-3C18H17NO2S
- 2-Ethoxy-N-[(thiophen-3-yl)methyl]naphthalene-1-carboxamide1058195-50-8C18H17NO2S
- 7-Methyl-3-[2-(phenylsulfinyl)ethyl]quinolin-2(1H)-one1707372-65-3C18H17NO2S
- N-(2-(5-(Furan-3-yl)thiophen-2-yl)ethyl)-2-methylbenzamide2034595-03-2C18H17NO2S
- 2-(1,3-Benzoxazol-2-ylsulfanyl)-1-(2,4,5-trimethylphenyl)ethanone445283-96-5C18H17NO2S
- 1,2,3,4-Tetrahydro-4-((4-methylphenyl)sulfonyl)cyclopent(b)indole442155-75-1C18H17NO2S
- 5,5-Diphenyl-3-(propan-2-yl)-2-sulfanylidene-1,3-oxazolidin-4-one88051-58-5C18H17NO2S
- N-(Furan-2-ylmethyl)-N-(4-methylbenzyl)thiophene-2-carboxamide879958-44-8C18H17NO2S
- 4-Methyl-3-phenyl-2-tosyl-1H-pyrrole374572-47-1C18H17NO2S
- N-([1,1'-Biphenyl]-2-yl)-2-methyl-5,6-dihydro-1,4-oxathiine-3-carboxamide6577-34-0C18H17NO2S
- N-[2-Hydroxy-2-(naphthalen-1-yl)ethyl]-2-(thiophen-2-yl)acetamide1351613-42-7C18H17NO2S
- N-(2-Hydroxy-2-(thiophen-2-yl)propyl)-1-naphthamide1396790-42-3C18H17NO2S
- Benzofuran-2-yl(4-(thiophen-3-yl)piperidin-1-yl)methanone1396805-52-9C18H17NO2S
- N-(3-Hydroxy-3-(thiophen-2-yl)propyl)-1-naphthamide1421474-68-1C18H17NO2S
- N-(Furan-3-ylmethyl)-2-methyl-N-(thiophen-2-ylmethyl)benzamide1421489-45-3C18H17NO2S
- N-(3-Hydroxy-3-(thiophen-3-yl)propyl)-1-naphthamide2034516-92-0C18H17NO2S
- 2,5-Dimethyl-N-(2-(thiophen-3-yl)benzyl)furan-3-carboxamide1706213-78-6C18H17NO2S
- 4-Ethyl-N-((5-(thiophen-3-yl)furan-2-yl)methyl)benzamide2034438-25-8C18H17NO2S
- (E)-N-(1-(Benzo[b]thiophen-3-yl)propan-2-yl)-3-(furan-2-yl)acrylamide2035000-83-8C18H17NO2S
- N-(1-(Thiophen-2-yl)cyclopentyl)benzofuran-2-carboxamide2034482-72-7C18H17NO2S
- 3-Phenyl-N-((5-(thiophen-2-yl)furan-2-yl)methyl)propanamide2034434-59-6C18H17NO2S
- (E)-N-(1-(Benzofuran-2-yl)propan-2-yl)-3-(thiophen-2-yl)acrylamide2034997-40-3C18H17NO2S
- (E)-N-(1-(Benzo[b]thiophen-3-yl)propan-2-yl)-3-(furan-3-yl)acrylamide2035008-04-7C18H17NO2S
- N-[2-(Furan-2-yl)-2-(thiophen-2-yl)ethyl]-2-methylbenzamide2097904-35-1C18H17NO2S
- N-[2-(Furan-2-yl)-2-(thiophen-3-yl)ethyl]-2-methylbenzamide2097883-84-4C18H17NO2S
- (2E)-N-[3-(1-Benzofuran-2-yl)propyl]-3-(thiophen-3-yl)prop-2-enamide2097940-35-5C18H17NO2S
- (5-Ethoxy-3-methyl-4H-1,4-benzothiazin-2-yl)(phenyl)methanone89808-03-7C18H17NO2S
- N-(2,5-Dimethylphenyl)naphthalene-1-sulfonamide670259-77-5C18H17NO2S
- N-(3,4-Dimethylphenyl)-1-naphthalenesulfonamide670259-76-4C18H17NO2S
- Benzenesulfonamide, N,4-dimethyl-N-1-naphthalenyl-18271-19-7C18H17NO2S
- Ethyl 3-benzyl-4H-1,4-benzothiazine-2-carboxylate90252-73-6C18H17NO2S
- N-Benzyl-3-phenyl-5,6-dihydro-1,4-oxathiine-2-carboxamide1010873-03-6C18H17NO2S
- 4-Methyl-1-(4-morpholinyl)-9H-thioxanthen-9-one28614-08-6C18H17NO2S
- 1,4-Oxathiin-3-carboxamide, 5,6-dihydro-N-(4-methylphenyl)-2-phenyl-61379-08-6C18H17NO2S
- 2-{3-[(4-Methylphenyl)sulfanyl]propyl}-1H-isoindole-1,3(2H)-dione87943-21-3C18H17NO2S
- Ethyl 3-(benzylthio)-1H-indole-2-carboxylate875737-69-2C18H17NO2S
- N-Methyl-N,3-diphenyl-5,6-dihydro-1,4-oxathiine-2-carboxamide1010912-87-4C18H17NO2S
- Ethyl 4-methyl-2-((naphthalen-2-yl)methyl)thiazole-5-carboxylate1318758-27-8C18H17NO2S
- [(5,7-Dimethyl-2-phenyl-1H-indol-3-yl)sulfanyl]acetic acid62663-19-8C18H17NO2S
- [(6,7-Dimethyl-2-phenyl-1H-indol-3-yl)sulfanyl]acetic acid62663-17-6C18H17NO2S
- [(4,7-Dimethyl-2-phenyl-1H-indol-3-yl)sulfanyl]acetic acid62663-16-5C18H17NO2S
- Propyl 2-amino-4-(2-naphthalenyl)-3-thiophenecarboxylate904998-89-6C18H17NO2S
- 2-([1,1'-Biphenyl]-4-yl)-3-(ethylsulfonyl)-1H-pyrrole1708444-97-6C18H17NO2S
- 6-(4-Cyclopropylphenyl)-6-(3-thienyl)-2,4-piperidinedione1809797-13-4C18H17NO2S
- 4-Ethyl-N-{[4-(furan-3-yl)thiophen-2-yl]methyl}benzamide2415470-38-9C18H17NO2S
- 4-Isothiocyanatophenyl 4-butylbenzoate61592-84-5C18H17NO2S
- 3-[2-(Benzenesulfonyl)prop-2-en-1-yl]-1-methyl-1H-indole922139-25-1C18H17NO2S
- 3-Methyl-4-phenyl-2-tosyl-1H-pyrrole374572-48-2C18H17NO2S
- {[2-(2,4-Dimethylphenyl)-1H-indol-3-yl]sulfanyl}acetic acid62663-30-3C18H17NO2S
- Ethyl [(2-phenyl-1H-indol-3-yl)sulfanyl]acetate62663-13-2C18H17NO2S
- Ethyl (2-phenyl-2H-1,4-benzothiazin-3(4H)-ylidene)acetate823802-06-8C18H17NO2S
- N-Cyclopropyl-4-methyl-N-(phenylethynyl)benzenesulfonamide1174638-31-3C18H17NO2S
Frequently asked questions
What is the molar mass of C18H17NO2S?
The molar mass of C18H17NO2S is 311.40 g/mol, calculated from standard atomic weights for 18 carbon atoms, 17 hydrogen atoms, 1 nitrogen atom, 2 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 311.0980 Da.
How many compounds have the formula C18H17NO2S?
CompoundList lists 91 compounds with the molecular formula C18H17NO2S, including 4-(5-Butyl-thiophen-2-ylmethylene)-3-phenyl-4H-isoxazol-5-one, 4-Methyl-N-(6-methyl-4-oxo-3,4-dihydro-2H-thiochromen-3-yl)benzenecarboxamide, N-Benzyl-2-methoxynaphthalene-1-sulfinamide. 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 C18H17NO2S?
C18H17NO2S 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.