Molecular formula
C21H17NO4S
66 compounds have this formula on CompoundList.
- Molar mass
- 379.43g/mol
- Monoisotopic mass
- 379.0878Da
- Atoms
- 44
- Elements
- 5
- Rings plus double bonds
- 14
The formula C21H17NO4S describes a molecule made of 21 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 × 2166.48%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 174.52%1.008 × 17 = 17.136 g/mol
- N Nitrogen × 13.69%14.007 × 1 = 14.007 g/mol
- O Oxygen × 416.87%15.999 × 4 = 63.996 g/mol
- S Sulfur × 18.45%32.06 × 1 = 32.060 g/mol
Look up another formula
Compounds with the formula C21H17NO4S
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 66 of 66 compounds
2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-(thiophen-2-yl)acetic acid
CAS 211682-11-0C21H17NO4S
![2-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-2-(thiophen-3-yl)acetic acid chemical structure, C21H17NO4S, CAS 372143-96-9](/s/RXQJSFSUCQXAJC-UHFFFAOYSA-N.svg)
2-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-2-(thiophen-3-yl)acetic acid
CAS 372143-96-9C21H17NO4S
5-(((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)methyl)thiophene-2-carboxylic acid
CAS 476362-75-1C21H17NO4S
![3-[({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)methyl]thiophene-2-carboxylic acid chemical structure, C21H17NO4S, CAS 2172256-21-0](/s/AIUJPXQJUCSXRB-UHFFFAOYSA-N.svg)
3-[({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)methyl]thiophene-2-carboxylic acid
CAS 2172256-21-0C21H17NO4S
![4-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-5-methylthiophene-3-carboxylic acid chemical structure, C21H17NO4S, CAS 2243509-54-6](/s/HPWYADLELSXIKB-UHFFFAOYSA-N.svg)
4-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-5-methylthiophene-3-carboxylic acid
CAS 2243509-54-6C21H17NO4S
4-(Furan-2-ylcarbonyl)-3-hydroxy-1-(2-phenylethyl)-5-(thiophen-2-yl)-1,5-dihydro-2H-pyrrol-2-one
CAS 607336-23-2C21H17NO4S
2-Benzoyl-2-(phenylsulfonyl)-acetanilide
CAS 23064-33-7C21H17NO4S
(S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-(thiophen-3-yl)acetic acid
CAS 1217706-09-6C21H17NO4S
(R)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-(thiophen-2-yl)acetic acid
CAS 208259-66-9C21H17NO4S
(S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-(thiophen-2-yl)acetic acid
CAS 211682-13-2C21H17NO4S
Fmoc-(R)-3-Thienylglycine
CAS 1217774-71-4C21H17NO4S
3-(1,3-Benzothiazol-2-yl)-6-ethyl-2-methyl-4-oxo-4H-chromen-7-yl acetate
CAS 5279-87-8C21H17NO4S
3-(1,3-Benzothiazol-2-yl)-4-oxo-4H-chromen-7-yl 2,2-dimethylpropanoate
CAS 618389-25-6C21H17NO4S
3-(1,3-Benzothiazol-2-yl)-2-methyl-4-oxo-4H-chromen-7-yl 2-methylpropanoate
CAS 577767-44-3C21H17NO4S
![N-(3-Acetyl-2-methylnaphtho[1,2-b]furan-5-yl)benzenesulfonamide chemical structure, C21H17NO4S, CAS 301313-63-3](/s/VITJLZVIODRFRK-UHFFFAOYSA-N.svg)
N-(3-Acetyl-2-methylnaphtho[1,2-b]furan-5-yl)benzenesulfonamide
CAS 301313-63-3C21H17NO4S
![3-(Benzo[d]thiazol-2-yl)-8-methyl-4-oxo-4H-chromen-7-yl isobutyrate chemical structure, C21H17NO4S, CAS 384364-26-5](/s/ITDXCTUFXRWGJP-UHFFFAOYSA-N.svg)
3-(Benzo[d]thiazol-2-yl)-8-methyl-4-oxo-4H-chromen-7-yl isobutyrate
CAS 384364-26-5C21H17NO4S
![(Z)-2-((5-Methylfuran-2-yl)methylene)-8-(thiophen-2-ylmethyl)-8,9-dihydro-2H-benzofuro[7,6-e][1,3]oxazin-3(7H)-one chemical structure, C21H17NO4S, CAS 929866-58-0](/s/FRQGQPXLZUXTJF-OCKHKDLRSA-N.svg)
(Z)-2-((5-Methylfuran-2-yl)methylene)-8-(thiophen-2-ylmethyl)-8,9-dihydro-2H-benzofuro[7,6-e][1,3]oxazin-3(7H)-one
CAS 929866-58-0C21H17NO4S
N-(3-Acetyl-2-methyl-1-benzofuran-5-yl)naphthalene-2-sulfonamide
CAS 301315-03-7C21H17NO4S
9-Acridanone, 6-methoxy-10-(p-tolylsulfonyl)-
CAS 102207-87-4C21H17NO4S
![5-(4-Ethoxyphenyl)-2-(2-methoxyphenyl)-4H-thieno[2,3-d][1,3]oxazin-4-one chemical structure, C21H17NO4S, CAS 342382-38-1](/s/AZRSIRQSTAOCMQ-UHFFFAOYSA-N.svg)
5-(4-Ethoxyphenyl)-2-(2-methoxyphenyl)-4H-thieno[2,3-d][1,3]oxazin-4-one
CAS 342382-38-1C21H17NO4S
3-(1,3-Benzothiazol-2-yl)-2,8-dimethyl-4-oxo-4H-chromen-7-yl propanoate
CAS 384359-98-2C21H17NO4S
![3-(Benzo[d]thiazol-2-yl)-2-oxo-2H-chromen-7-yl pivalate chemical structure, C21H17NO4S, CAS 578003-09-5](/s/FRXALTKKHQFNQF-UHFFFAOYSA-N.svg)
3-(Benzo[d]thiazol-2-yl)-2-oxo-2H-chromen-7-yl pivalate
CAS 578003-09-5C21H17NO4S
4-(Phenylsulfamoyl)phenyl 4-ethenylbenzoate
CAS 89298-28-2C21H17NO4S
Fmoc-D,L-alpha-amino-2-thiophenacetic acid
CAS 2383025-24-7C21H17NO4S
- 2-Benzyl-5-(3,4-dimethoxyphenyl)-4H-thieno[2,3-d][1,3]oxazin-4-one342383-00-0C21H17NO4S
- 5-Nitro-2-(phenylsulfanyl)benzyl 4-methylbenzenecarboxylate331459-89-3C21H17NO4S
- N-[3-(4-Methoxyphenyl)-4-oxo-[1]benzothiolo[3,2-b]pyran-2-yl]propanamide883958-60-9C21H17NO4S
- 5-[({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)methyl]thiophene-3-carboxylic acid476362-79-5C21H17NO4S
- 4-[(9H-Fluoren-9-ylmethoxycarbonylamino)methyl]thiophene-2-carboxylic acid503469-94-1C21H17NO4S
- (2-Oxo-2-thiophen-2-ylethyl) 3-[(4-methylbenzoyl)amino]benzoate672340-87-3C21H17NO4S
- 2-Methyl-8-quinolyl 4-methoxynaphthalenesulfonate457960-46-2C21H17NO4S
- 2-Methyl-8-quinolyl 6-methoxynaphthalene-2-sulfonate425680-12-2C21H17NO4S
- 2-(4-Ethoxyphenyl)-N-(4-oxothieno[3,4-c]chromen-3-yl)acetamide588684-49-5C21H17NO4S
- 2-Phenoxathiin-4-yl-6-morpholin-4-yl-pyran-4-one587871-28-1C21H17NO4S
- (Z)-2-(Furan-2-ylmethylene)-8-(2-(thiophen-2-yl)ethyl)-8,9-dihydro-2H-benzofuro[7,6-e][1,3]oxazin-3(7H)-one929870-28-0C21H17NO4S
- N-(Naphthalen-2-yl)-3-phenyl-5,6-dihydro-1,4-oxathiine-2-carboxamide 4,4-dioxide1144482-36-9C21H17NO4S
- 2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-5-methylthiophene-3-carboxylic acid1340291-71-5C21H17NO4S
- N-(Furan-2-ylmethyl)-2-oxo-N-(2-(thiophen-2-yl)ethyl)-2H-chromene-3-carboxamide1396687-49-2C21H17NO4S
- N-(2-(Benzo[b]thiophen-2-yl)-2-hydroxypropyl)-4-oxo-4H-chromene-2-carboxamide2034242-64-1C21H17NO4S
- N-(3-Acetyl-2-methyl-1-benzofuran-5-yl)naphthalene-1-sulfonamide714261-16-2C21H17NO4S
- (5Z)-5-[(3-Ethoxy-4-prop-2-ynoxyphenyl)methylidene]-3-phenyl-1,3-thiazolidine-2,4-dione367455-98-9C21H17NO4S
- Quinolin-8-yl 4-ethoxynaphthalene-1-sulfonate352444-38-3C21H17NO4S
- 5-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-methylthiophene-2-carboxylic acid1339327-19-3C21H17NO4S
- N-[2-(Furan-2-yl)-2-(furan-3-yl)-2-hydroxyethyl]-4-(thiophen-3-yl)benzamide2034329-48-9C21H17NO4S
- N-(4-Hydroxy-3-(1-oxo-3-phenylallyl)phenyl)benzenesulphonamide94094-59-4C21H17NO4S
- 4-[(Benzenesulfonyl)amino]phenyl 4-ethenylbenzoate89311-72-8C21H17NO4S
- 1-(Furan-2-ylmethyl)-4-[hydroxy-(4-methylphenyl)methylidene]-5-thiophen-2-ylpyrrolidine-2,3-dione4824-74-2C21H17NO4S
- 5-Thiazoleacetic acid, 2-(2-(1,3-benzodioxol-5-yl)ethenyl)-4-(4-methylphenyl)-116759-28-5C21H17NO4S
- 1,1'-[1-(4-Methylbenzene-1-sulfonyl)-2-nitroethene-1,2-diyl]dibenzene137882-79-2C21H17NO4S
- Methyl 2-(4-nitro-3-(phenylthio)phenyl)-2-phenylacetate1848979-91-8C21H17NO4S
- 4-[({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)methyl]thiophene-3-carboxylic acid2172545-94-5C21H17NO4S
- 2-(Benzenesulfonyl)-5-{(E)-[(4-methylphenyl)methylidene]amino}benzoic acid192513-56-7C21H17NO4S
- 3-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-4-methylthiophene-2-carboxylic acid1597849-92-7C21H17NO4S
- 3-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-5-methylthiophene-2-carboxylic acid2386747-60-8C21H17NO4S
- 2-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-4-methylthiophene-3-carboxylic acid2385237-67-0C21H17NO4S
- 5-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-4-methylthiophene-3-carboxylic acid2383616-66-6C21H17NO4S
- 5-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-4-methylthiophene-2-carboxylic acid2580191-26-8C21H17NO4S
- 5-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-2-methylthiophene-3-carboxylic acid2580214-17-9C21H17NO4S
- 5-({[(9H-Fluoren-9-yl)methoxy]carbonyl}(methyl)amino)thiophene-2-carboxylic acid2386678-04-0C21H17NO4S
- 4-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-5-methylthiophene-2-carboxylic acid2385191-89-7C21H17NO4S
- 2-[(2-{[(Benzyloxy)carbonyl]amino}phenyl)sulfanyl]benzoic acid2639460-45-8C21H17NO4S
- 4-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-2-methylthiophene-3-carboxylic acid2639456-50-9C21H17NO4S
- 5-{[(Benzyloxy)carbonyl]amino}-2-(phenylsulfanyl)benzoic acid2639453-66-8C21H17NO4S
- 4-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-3-methylthiophene-2-carboxylic acid2870681-16-4C21H17NO4S
- Benzamide,N-(2-benzoylphenyl)-4-(methylsulfonyl)-462120-51-0C21H17NO4S
- Methyl 4-(N-(diphenylmethylene)sulfamoyl)benzoate2922086-27-7C21H17NO4S
Frequently asked questions
What is the molar mass of C21H17NO4S?
The molar mass of C21H17NO4S is 379.43 g/mol, calculated from standard atomic weights for 21 carbon atoms, 17 hydrogen atoms, 1 nitrogen atom, 4 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 379.0878 Da.
How many compounds have the formula C21H17NO4S?
CompoundList lists 66 compounds with the molecular formula C21H17NO4S, including 2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-(thiophen-2-yl)acetic acid, 2-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-2-(thiophen-3-yl)acetic acid, 5-(((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)methyl)thiophene-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 C21H17NO4S?
C21H17NO4S 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.