Molecular formula
C18H21NO5S
119 compounds have this formula on CompoundList.
- Molar mass
- 363.43g/mol
- Monoisotopic mass
- 363.1140Da
- Atoms
- 46
- Elements
- 5
- Rings plus double bonds
- 9
The formula C18H21NO5S describes a molecule made of 18 carbon atoms, 21 hydrogen atoms, 1 nitrogen atom, 5 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 × 1859.49%12.011 × 18 = 216.198 g/mol
- H Hydrogen × 215.82%1.008 × 21 = 21.168 g/mol
- N Nitrogen × 13.85%14.007 × 1 = 14.007 g/mol
- O Oxygen × 522.01%15.999 × 5 = 79.995 g/mol
- S Sulfur × 18.82%32.06 × 1 = 32.060 g/mol
Look up another formula
Compounds with the formula C18H21NO5S
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 119 compounds
6,7-Dimethoxy-2-(4-methoxy-benzenesulfonyl)-1,2,3,4-tetrahydro-isoquinoline
CAS 496028-61-6C18H21NO5S
N-(1,1-Dioxidotetrahydrothiophen-3-yl)-N-(furan-2-ylmethyl)-2-(4-methylphenoxy)acetamide
CAS 879926-75-7C18H21NO5S
![3-({[3-(Methoxycarbonyl)-4,5-dimethyl-2-thienyl]amino}carbonyl)bicyclo[2.2.2]oct-5-ene-2-carboxylic acid chemical structure, C18H21NO5S, CAS 1005103-91-2](/s/CTESPVHSEOQRTH-UHFFFAOYSA-N.svg)
3-({[3-(Methoxycarbonyl)-4,5-dimethyl-2-thienyl]amino}carbonyl)bicyclo[2.2.2]oct-5-ene-2-carboxylic acid
CAS 1005103-91-2C18H21NO5S
Dimethyl 1-(oxolan-2-ylmethyl)-4-thiophen-3-yl-4H-pyridine-3,5-dicarboxylate
CAS 421571-35-9C18H21NO5S
N-(1,3-Benzodioxol-5-ylmethyl)-5-ethoxy-2,4-dimethylbenzenesulfonamide
CAS 700854-79-1C18H21NO5S
![3-[N-(4-Methoxyphenyl)3,4-dimethylbenzenesulfonamido]propanoic acid chemical structure, C18H21NO5S, CAS 565195-46-2](/s/ISKJTAWWVLKNLX-UHFFFAOYSA-N.svg)
3-[N-(4-Methoxyphenyl)3,4-dimethylbenzenesulfonamido]propanoic acid
CAS 565195-46-2C18H21NO5S
N-(1,1-Dioxidotetrahydrothiophen-3-yl)-3-ethoxy-N-(furan-2-ylmethyl)benzamide
CAS 838895-51-5C18H21NO5S
![3-[N-(4-Methoxyphenyl)2,4-dimethylbenzenesulfonamido]propanoic acid chemical structure, C18H21NO5S, CAS 729561-81-3](/s/MXODPTITDMYECG-UHFFFAOYSA-N.svg)
3-[N-(4-Methoxyphenyl)2,4-dimethylbenzenesulfonamido]propanoic acid
CAS 729561-81-3C18H21NO5S
Benzoxazolium, 3-ethyl-2-methyl-5-phenyl-, ethyl sulfate (1:1)
CAS 63870-49-5C18H21NO5S
(E)-2-(3,4-Dimethoxyphenyl)-N-(3-methoxybenzyl)-1-ethenesulfonamide
CAS 478080-65-8C18H21NO5S
![N-(1,1-Dioxidotetrahydrothiophen-3-yl)-2-methoxy-N-[(5-methylfuran-2-yl)methyl]benzamide chemical structure, C18H21NO5S, CAS 838900-81-5](/s/ZRZQBDVQIAGFSD-UHFFFAOYSA-N.svg)
N-(1,1-Dioxidotetrahydrothiophen-3-yl)-2-methoxy-N-[(5-methylfuran-2-yl)methyl]benzamide
CAS 838900-81-5C18H21NO5S
N-(1,1-Dioxidotetrahydrothiophen-3-yl)-N-(furan-2-ylmethyl)-2-(3-methylphenoxy)acetamide
CAS 846580-39-0C18H21NO5S
![2-[1-(Benzenesulfonyl)piperidine-4-carbonyl]cyclohexane-1,3-dione chemical structure, C18H21NO5S, CAS 478041-51-9](/s/GTLVHKWVDSYRET-UHFFFAOYSA-N.svg)
2-[1-(Benzenesulfonyl)piperidine-4-carbonyl]cyclohexane-1,3-dione
CAS 478041-51-9C18H21NO5S
CL 242817
CAS 86709-48-0C18H21NO5S
N-(1,1-Dioxidotetrahydrothiophen-3-yl)-N-(4-ethoxybenzyl)furan-2-carboxamide
CAS 847377-48-4C18H21NO5S
N-(1,1-Dioxidotetrahydrothiophen-3-yl)-2-ethoxy-N-(furan-2-ylmethyl)benzamide
CAS 877792-57-9C18H21NO5S
![(S)-2-(4'-Methoxy-[1,1'-biphenyl]-4-ylsulfonamido)-3-methylbutanoic acid chemical structure, C18H21NO5S, CAS 199850-81-2](/s/MDWFJTBWOFNAQX-KRWDZBQOSA-N.svg)
(S)-2-(4'-Methoxy-[1,1'-biphenyl]-4-ylsulfonamido)-3-methylbutanoic acid
CAS 199850-81-2C18H21NO5S
N-(1,3-Benzodioxol-5-ylmethyl)-4-butoxybenzenesulfonamide
CAS 433706-62-8C18H21NO5S
![N-[2-(3,5-Dimethylphenoxy)ethyl]-2,3-dihydro-1,4-benzodioxine-6-sulfonamide chemical structure, C18H21NO5S, CAS 1105235-32-2](/s/ZGQNIUCACATONT-UHFFFAOYSA-N.svg)
N-[2-(3,5-Dimethylphenoxy)ethyl]-2,3-dihydro-1,4-benzodioxine-6-sulfonamide
CAS 1105235-32-2C18H21NO5S
![N-(1,1-Dioxidotetrahydrothiophen-3-yl)-3-methoxy-N-[(5-methylfuran-2-yl)methyl]benzamide chemical structure, C18H21NO5S, CAS 881444-68-4](/s/KRTSUZOCGXSVNB-UHFFFAOYSA-N.svg)
N-(1,1-Dioxidotetrahydrothiophen-3-yl)-3-methoxy-N-[(5-methylfuran-2-yl)methyl]benzamide
CAS 881444-68-4C18H21NO5S
Ethyl 2-(3,4-dimethoxybenzamido)-4,5-dimethylthiophene-3-carboxylate
CAS 307506-29-2C18H21NO5S
Ethyl 2-(3,5-dimethoxybenzamido)-4,5-dimethylthiophene-3-carboxylate
CAS 433974-91-5C18H21NO5S
![3-(Benzo[d][1,3]dioxol-5-yloxy)-N-(1-phenylethyl)propane-1-sulfonamide chemical structure, C18H21NO5S, CAS 946315-55-5](/s/POUXOSAOCALWOR-UHFFFAOYSA-N.svg)
3-(Benzo[d][1,3]dioxol-5-yloxy)-N-(1-phenylethyl)propane-1-sulfonamide
CAS 946315-55-5C18H21NO5S
Morphine methylsulfonate
CAS 1414808-25-5C18H21NO5S
- 2-(Phenylmethoxycarbonylamino)propyl 4-methylbenzenesulfonate392237-29-5C18H21NO5S
- 2-{[(4-Butoxy-3-methylphenyl)sulfonyl]amino}benzoic acid940989-11-7C18H21NO5S
- 3-{[(4-Butoxy-3-methylphenyl)sulfonyl]amino}benzoic acid941263-40-7C18H21NO5S
- 4-(4-Butoxy-3-methylbenzenesulfonamido)benzoic acid914620-07-8C18H21NO5S
- 4-(3-tert-Butyl-4-methoxybenzenesulfonamido)benzoic acid1018127-88-2C18H21NO5S
- Methyl N-(4-ethoxyphenyl)-N-[(4-methylphenyl)sulfonyl]glycinate425427-30-1C18H21NO5S
- Methyl N-(2-methoxy-5-methylphenyl)-N-[(4-methylphenyl)sulfonyl]glycinate491844-30-5C18H21NO5S
- Diethyl(acetylamino)(1-benzothiophen-3-ylmethyl)propanedioate23906-20-9C18H21NO5S
- Methyl N-(2-ethoxyphenyl)-N-[(4-methylphenyl)sulfonyl]glycinate333448-13-8C18H21NO5S
- 2-[(3-Ethoxycarbonyl-4,5-dimethylthiophen-2-yl)carbamoyl]bicyclo[2.2.1]hept-5-ene-3-carboxylic acid470472-73-2C18H21NO5S
- 3-(Butylamino)-5-(methylsulfonyl)-4-phenoxybenzoic acid32548-16-6C18H21NO5S
- Ethyl 2-[(2,6-dimethoxybenzoyl)amino]-4,5-dimethylthiophene-3-carboxylate302803-42-5C18H21NO5S
- Methyl 3-[5-({[(cyclohexylamino)carbonyl]oxy}methyl)-2-furyl]-2-thiophenecarboxylate320417-78-5C18H21NO5S
- 4H-Cyclopenta[b]thiophene-3-carboxylic acid, 2-[[(6-carboxy-3-cyclohexen-1-yl)carbonyl]amino]-5,6-dihydro-, 3-ethyl ester544460-20-0C18H21NO5S
- N-(2-Carboxybenzoyl)-(-)-10,2-camphorsultam179950-32-4C18H21NO5S
- 3-(5-tert-Butyl-2-methoxybenzenesulfonamido)benzoic acid927637-16-9C18H21NO5S
- 4-[2-Methoxy-4-methyl-5-(propan-2-yl)benzenesulfonamido]benzoic acid927637-96-5C18H21NO5S
- 2-[4-(N-Methyl3,4-dimethylbenzenesulfonamido)phenoxy]propanoic acid926221-69-4C18H21NO5S
- Methyl 2-{[(3,4-dimethoxyphenyl)acetyl]amino}-4,5-dimethyl-3-thiophenecarboxylate540795-18-4C18H21NO5S
- Methyl 2-[(3,4-dimethoxybenzoyl)amino]-4-ethyl-5-methylthiophene-3-carboxylate330657-85-7C18H21NO5S
- 3-(5-Isopropyl-2-methoxy-4-methylphenylsulfonamido)benzoic acid927637-08-9C18H21NO5S
- 4-(5-tert-Butyl-2-methoxybenzenesulfonamido)benzoic acid927638-08-2C18H21NO5S
- N-(1,1-Dioxidotetrahydrothiophen-3-yl)-N-methyl-5-[(2-methylphenoxy)methyl]furan-2-carboxamide951900-93-9C18H21NO5S
- N-(1,3-Benzodioxol-5-ylmethyl)-2-ethoxy-4,5-dimethylbenzenesulfonamide791844-22-9C18H21NO5S
- N-(1,3-Benzodioxol-5-ylmethyl)-4-ethoxy-2,5-dimethylbenzenesulfonamide867135-54-4C18H21NO5S
- Ethyl N-(methylsulfonyl)-N-(4-phenoxyphenyl)alaninate1008186-00-2C18H21NO5S
- N-(1,3-Benzodioxol-5-ylmethyl)-4-ethoxy-2,3-dimethylbenzenesulfonamide791844-21-8C18H21NO5S
- 4-(1-Methylethoxy)-beta-[(phenylsulfonyl)amino]benzenepropanoic acid682760-60-7C18H21NO5S
- 3-(((Benzyloxy)carbonyl)amino)propyl 4-methylbenzenesulfonate68076-37-9C18H21NO5S
- N-(1,1-Dioxidotetrahydrothiophen-3-yl)-4-ethoxy-N-(furan-2-ylmethyl)benzamide879945-42-3C18H21NO5S
- N-(1,1-Dioxidotetrahydrothiophen-3-yl)-N-(furan-2-ylmethyl)-2-(2-methylphenoxy)acetamide879926-85-9C18H21NO5S
- N-(1,1-Dioxidotetrahydrothiophen-3-yl)-N-methyl-5-[(3-methylphenoxy)methyl]furan-2-carboxamide951901-01-2C18H21NO5S
- Methyl 2-[(3,5-dimethoxybenzoyl)amino]-4-ethyl-5-methyl-3-thiophenecarboxylate354545-92-9C18H21NO5S
- Ethyl 2-(2,3-dimethoxybenzamido)-5-ethylthiophene-3-carboxylate444999-02-4C18H21NO5S
- Butyl 4-{[(4-methoxyphenyl)sulfonyl]amino}benzoate550309-80-3C18H21NO5S
- Ethyl 4-(4-methoxy-2,3-dimethylbenzenesulfonamido)benzoate833444-92-1C18H21NO5S
- 2-{[(2-Ethoxy-5-isopropylphenyl)sulfonyl]amino}benzoic acid927637-37-4C18H21NO5S
- 2-(3-tert-Butyl-4-methoxybenzenesulfonamido)benzoic acid927637-41-0C18H21NO5S
- N-(1,1-Dioxidotetrahydrothiophen-3-yl)-N-[(5-methylfuran-2-yl)methyl]-2-phenoxyacetamide879940-49-5C18H21NO5S
- N-(1,3-Benzodioxol-5-ylmethyl)-5-isopropyl-2-methoxybenzenesulfonamide940986-35-6C18H21NO5S
- 4-(3-t-Butylsulfamoylphenyl)-3-methoxybenzoic acid1261969-77-0C18H21NO5S
- 2-(3-t-Butylsulfamoylphenyl)-5-methoxybenzoic acid1261916-81-7C18H21NO5S
- 2-(4-t-Butylsulfamoylphenyl)-5-methoxybenzoic acid1261894-52-3C18H21NO5S
- Ethyl N-(4-methylbenzene-1-sulfonyl)tyrosinate58559-09-4C18H21NO5S
- Ethyl 2-acetamido-4-(3,4-dimethoxyphenyl)-5-methylthiophene-3-carboxylate461042-77-3C18H21NO5S
- Ethyl 2-[4,6-dimethyl-3-[(2-methylphenyl)sulfonyl]-2-oxo-1(2H)-pyridinyl]acetate321431-61-2C18H21NO5S
- Ethyl 2-[(2Z)-3-[(5-acetyl-2-ethoxyphenyl)methyl]-4-oxo-1,3-thiazolidin-2-ylidene]acetate869472-70-8C18H21NO5S
- 1-[(4-Ethoxynaphthyl)sulfonyl]piperidine-4-carboxylic acid941232-82-2C18H21NO5S
- 3-(4,5-Dimethyl-2-propoxybenzenesulfonamido)benzoic acid950239-85-7C18H21NO5S
- [[2-(3-Methoxy-phenyl)-ethyl]-(toluene-4-sulfonyl)-amino]-acetic acid81593-56-8C18H21NO5S
- 3-(N-(4-Methoxybenzyl)-4-methylphenylsulfonamido)propanoic acid1311254-73-5C18H21NO5S
- N-(2-Cyclopropyl-2-(furan-2-yl)-2-hydroxyethyl)-3-(phenylsulfonyl)propanamide1396708-03-4C18H21NO5S
- 2-[(1R,5S,7S)-10,10-Dimethyl-3,3-dioxo-3lambda6-thia-4-azatricyclo[5.2.1.01,5]decane-4-carbonyl]benzoic acid1820570-99-7C18H21NO5S
- 3-{(4-Methoxyphenyl)[(4-methylphenyl)sulfonyl]amino}butanoic acid34129-46-9C18H21NO5S
- 2-(N-(2-Methoxy-5-methylphenyl)sulfonyl-3,4-dimethylanilino)acetic acid791805-19-1C18H21NO5S
- 1-Propanone, 1-benzo(b)thien-2-yl-3-(1-piperidinyl)-, ethanedioate61508-32-5C18H21NO5S
- 2-[2-Methoxy-4-methyl-5-(propan-2-yl)benzenesulfonamido]benzoic acid927637-31-8C18H21NO5S
- 3-(Benzo[d][1,3]dioxol-5-yloxy)-N-phenethylpropane-1-sulfonamide946286-14-2C18H21NO5S
- 4-((2,5-Dimethoxyphenyl)sulfonyl)-2-phenylmorpholine946292-02-0C18H21NO5S
- 4-((3,4-Dimethoxyphenyl)sulfonyl)-2-phenylmorpholine946234-34-0C18H21NO5S
- N-(3-Methoxyphenyl)-4-((4-methoxyphenyl)sulfonyl)butanamide923065-47-8C18H21NO5S
- N-((1-Hydroxy-2,3-dihydro-1H-inden-1-yl)methyl)-2,5-dimethoxybenzenesulfonamide1396677-02-3C18H21NO5S
- (E)-N-(2-Hydroxy-2-(thiophen-2-yl)ethyl)-3-(3,4,5-trimethoxyphenyl)acrylamide1351664-13-5C18H21NO5S
- 3-(3-Methoxy-N-(4-methylphenyl)sulfonylanilino)butanoic acid34129-43-6C18H21NO5S
- Ethyl {(5E)-5-[4-(butan-2-yloxy)benzylidene]-2,4-dioxo-1,3-thiazolidin-3-yl}acetate432021-57-3C18H21NO5S
- 2-((((Benzyloxy)carbonyl)amino)methyl)phenethyl methanesulfonate439118-47-5C18H21NO5S
- 3-(3-t-Butylsulfamoylphenyl)-2-methoxybenzoic acid1261916-78-2C18H21NO5S
- 3-(3-T-Butylsulfamoylphenyl)-5-methoxybenzoic acid1261916-16-8C18H21NO5S
- 4-(3-t-Butylsulfamoylphenyl)-2-methoxybenzoic acid1261997-48-1C18H21NO5S
- 4-(4-t-Butylsulfamoylphenyl)-3-methoxybenzoic acid1261909-70-9C18H21NO5S
- 3-(4-T-Butylsulfamoylphenyl)-5-methoxybenzoic acid1262008-32-1C18H21NO5S
- 4-(4-t-Butylsulfamoylphenyl)-2-methoxybenzoic acid1261969-95-2C18H21NO5S
- 2-Ethyl-2-(methylsulfonyl)-4-(2-oxo-4-phenylpyridin-1(2H)-yl)butanoic acid1312479-42-7C18H21NO5S
- Methyl [7-hydroxy-4-methyl-2-oxo-8-(thiomorpholin-4-ylmethyl)-2H-chromen-3-yl]acetate1435976-70-7C18H21NO5S
- 3-Acetyl-N-(2-methoxy-2-(3-methoxyphenyl)ethyl)benzenesulfonamide1797715-60-6C18H21NO5S
- 8-Methoxy-N-((4-methoxytetrahydro-2H-thiopyran-4-yl)methyl)-2-oxo-2H-chromene-3-carboxamide2034452-69-0C18H21NO5S
Frequently asked questions
What is the molar mass of C18H21NO5S?
The molar mass of C18H21NO5S is 363.43 g/mol, calculated from standard atomic weights for 18 carbon atoms, 21 hydrogen atoms, 1 nitrogen atom, 5 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 363.1140 Da.
How many compounds have the formula C18H21NO5S?
CompoundList lists 119 compounds with the molecular formula C18H21NO5S, including 6,7-Dimethoxy-2-(4-methoxy-benzenesulfonyl)-1,2,3,4-tetrahydro-isoquinoline, N-(1,1-Dioxidotetrahydrothiophen-3-yl)-N-(furan-2-ylmethyl)-2-(4-methylphenoxy)acetamide, 3-({[3-(Methoxycarbonyl)-4,5-dimethyl-2-thienyl]amino}carbonyl)bicyclo[2.2.2]oct-5-ene-2-carboxylic acid. 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 C18H21NO5S?
C18H21NO5S has a degree of unsaturation of 9. 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.