Molecular formula
C21H16ClN3O3S
68 compounds have this formula on CompoundList.
- Molar mass
- 425.89g/mol
- Monoisotopic mass
- 425.0601Da
- Atoms
- 45
- Elements
- 6
- Rings plus double bonds
- 15
The formula C21H16ClN3O3S describes a molecule made of 21 carbon atoms, 16 hydrogen atoms, 1 chlorine atom, 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 × 2159.22%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 163.79%1.008 × 16 = 16.128 g/mol
- Cl Chlorine × 18.32%35.45 × 1 = 35.450 g/mol
- N Nitrogen × 39.87%14.007 × 3 = 42.021 g/mol
- O Oxygen × 311.27%15.999 × 3 = 47.997 g/mol
- S Sulfur × 17.53%32.06 × 1 = 32.060 g/mol
Look up another formula
Compounds with the formula C21H16ClN3O3S
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 68 of 68 compounds
RefChem:382258
CAS 6115-38-4C21H16ClN3O3S
5-(4-Chlorophenyl)-3-hydroxy-1-(5-methyl-1,3,4-thiadiazol-2-yl)-4-(4-methylbenzoyl)-2,5-dihydro-1H-pyrrol-2-one
CAS 371213-23-9C21H16ClN3O3S
9-CL-5-ME-5(4-Nitro-PH)2(2-thienyl)-1,10B-dihydropyrazolo(1,5-C)(1,3)benzoxazine
CAS 332062-69-8C21H16ClN3O3S
![(Z)-3-(Benzo[d][1,3]dioxol-5-yl)-N-(2-(4-chlorophenyl)-4,6-dihydro-2H-thieno[3,4-c]pyrazol-3-yl)acrylamide chemical structure, C21H16ClN3O3S, CAS 1164465-30-8](/s/UEPXTNPQLNINOS-WAPJZHGLSA-N.svg)
(Z)-3-(Benzo[d][1,3]dioxol-5-yl)-N-(2-(4-chlorophenyl)-4,6-dihydro-2H-thieno[3,4-c]pyrazol-3-yl)acrylamide
CAS 1164465-30-8C21H16ClN3O3S
![N-[4-[[(E)-3-(4-Chlorophenyl)prop-2-enoyl]carbamothioylamino]phenyl]furan-2-carboxamide chemical structure, C21H16ClN3O3S, CAS 1164522-47-7](/s/AQWYIXYGJTWAGV-LFYBBSHMSA-N.svg)
N-[4-[[(E)-3-(4-Chlorophenyl)prop-2-enoyl]carbamothioylamino]phenyl]furan-2-carboxamide
CAS 1164522-47-7C21H16ClN3O3S
![5-(4-Chlorophenyl)-4-[hydroxy-(4-methylphenyl)methylidene]-1-(5-methyl-1,3,4-thiadiazol-2-yl)pyrrolidine-2,3-dione chemical structure, C21H16ClN3O3S](/s/IPCHJEZGCOSAQO-UHFFFAOYSA-N.svg)
5-(4-Chlorophenyl)-4-[hydroxy-(4-methylphenyl)methylidene]-1-(5-methyl-1,3,4-thiadiazol-2-yl)pyrrolidine-2,3-dione
C21H16ClN3O3S
![N-[2-[3-(4-Chlorophenyl)-1,2,4-oxadiazol-5-yl]phenyl]-4-methylbenzenesulfonamide chemical structure, C21H16ClN3O3S, CAS 218456-08-7](/s/LFMFVEXNZKJJHO-UHFFFAOYSA-N.svg)
N-[2-[3-(4-Chlorophenyl)-1,2,4-oxadiazol-5-yl]phenyl]-4-methylbenzenesulfonamide
CAS 218456-08-7C21H16ClN3O3S
![N-(3-Chloro-4-methoxyphenyl)-2-(4-oxo-7-phenylthieno[3,2-d]pyrimidin-3(4H)-yl)acetamide chemical structure, C21H16ClN3O3S, CAS 1105235-07-1](/s/XBFVGJNVZBETOA-UHFFFAOYSA-N.svg)
N-(3-Chloro-4-methoxyphenyl)-2-(4-oxo-7-phenylthieno[3,2-d]pyrimidin-3(4H)-yl)acetamide
CAS 1105235-07-1C21H16ClN3O3S
![(Z)-N-(3-Allyl-6-chlorobenzo[d]thiazol-2(3H)-ylidene)-3-(2,5-dioxopyrrolidin-1-yl)benzamide chemical structure, C21H16ClN3O3S, CAS 941871-49-4](/s/YGSODZISZVVQEC-UHFFFAOYSA-N.svg)
(Z)-N-(3-Allyl-6-chlorobenzo[d]thiazol-2(3H)-ylidene)-3-(2,5-dioxopyrrolidin-1-yl)benzamide
CAS 941871-49-4C21H16ClN3O3S
![N-(5-Chloro-2-methoxyphenyl)-2-(4-oxo-7-phenylthieno[3,2-d]pyrimidin-3(4H)-yl)acetamide chemical structure, C21H16ClN3O3S, CAS 1105219-10-0](/s/ITTZRRGWQSNMMQ-UHFFFAOYSA-N.svg)
N-(5-Chloro-2-methoxyphenyl)-2-(4-oxo-7-phenylthieno[3,2-d]pyrimidin-3(4H)-yl)acetamide
CAS 1105219-10-0C21H16ClN3O3S
![2-(4-Chlorophenoxy)-N-(3-(7-methyl-5-oxo-5H-thiazolo[3,2-a]pyrimidin-3-yl)phenyl)acetamide chemical structure, C21H16ClN3O3S, CAS 1020979-50-3](/s/JEJVPFURULOSPQ-UHFFFAOYSA-N.svg)
2-(4-Chlorophenoxy)-N-(3-(7-methyl-5-oxo-5H-thiazolo[3,2-a]pyrimidin-3-yl)phenyl)acetamide
CAS 1020979-50-3C21H16ClN3O3S
![(2Z)-3-(2H-1,3-Benzodioxol-5-yl)-N-[2-(3-chlorophenyl)-2H,4H,6H-thieno[3,4-c]pyrazol-3-yl]prop-2-enamide chemical structure, C21H16ClN3O3S](/s/IRVFGNBCJAZUMG-FNORWQNLSA-N.svg)
(2Z)-3-(2H-1,3-Benzodioxol-5-yl)-N-[2-(3-chlorophenyl)-2H,4H,6H-thieno[3,4-c]pyrazol-3-yl]prop-2-enamide
C21H16ClN3O3S
![(2Z)-3-(2H-1,3-Benzodioxol-5-yl)-N-[2-(4-chlorophenyl)-2H,4H,6H-thieno[3,4-c]pyrazol-3-yl]prop-2-enamide chemical structure, C21H16ClN3O3S](/s/UEPXTNPQLNINOS-KRXBUXKQSA-N.svg)
(2Z)-3-(2H-1,3-Benzodioxol-5-yl)-N-[2-(4-chlorophenyl)-2H,4H,6H-thieno[3,4-c]pyrazol-3-yl]prop-2-enamide
C21H16ClN3O3S
![N-[3-(1H-1,3-Benzodiazol-2-yl)phenyl]-2-(4-chlorobenzenesulfonyl)acetamide chemical structure, C21H16ClN3O3S, CAS 895464-14-9](/s/UWIUEPSPAMXZHS-UHFFFAOYSA-N.svg)
N-[3-(1H-1,3-Benzodiazol-2-yl)phenyl]-2-(4-chlorobenzenesulfonyl)acetamide
CAS 895464-14-9C21H16ClN3O3S
![(4E)-4-[(4-Chlorophenyl)(hydroxy)methylidene]-5-(4-methylphenyl)-1-(5-methyl-1,3,4-thiadiazol-2-yl)pyrrolidine-2,3-dione chemical structure, C21H16ClN3O3S, CAS 371235-44-8](/s/QFTPHPPIDOEECW-FBMGVBCBSA-N.svg)
(4E)-4-[(4-Chlorophenyl)(hydroxy)methylidene]-5-(4-methylphenyl)-1-(5-methyl-1,3,4-thiadiazol-2-yl)pyrrolidine-2,3-dione
CAS 371235-44-8C21H16ClN3O3S
![4-(Benzenesulfonyl)-2-(2-chlorophenyl)-N-[(pyridin-3-yl)methyl]-1,3-oxazol-5-amine chemical structure, C21H16ClN3O3S, CAS 380322-48-5](/s/QZBBSFPZMAVWGV-UHFFFAOYSA-N.svg)
4-(Benzenesulfonyl)-2-(2-chlorophenyl)-N-[(pyridin-3-yl)methyl]-1,3-oxazol-5-amine
CAS 380322-48-5C21H16ClN3O3S
![5-Amino-4-[4-(4-chlorophenyl)-1,3-thiazol-2-yl]-1-(2,3-dihydro-1,4-benzodioxin-6-yl)-1,2-dihydro-3H-pyrrol-3-one chemical structure, C21H16ClN3O3S, CAS 380387-17-7](/s/MVZBGEKCHCHTIW-UHFFFAOYSA-N.svg)
5-Amino-4-[4-(4-chlorophenyl)-1,3-thiazol-2-yl]-1-(2,3-dihydro-1,4-benzodioxin-6-yl)-1,2-dihydro-3H-pyrrol-3-one
CAS 380387-17-7C21H16ClN3O3S
![3-(2-{2-[1-(4-Chlorophenyl)ethylidene]hydrazino}-1,3-thiazol-4-yl)-8-methoxy-2H-chromen-2-one chemical structure, C21H16ClN3O3S, CAS 244104-87-8](/s/FVZDCSUEUKYLHR-WYMPLXKRSA-N.svg)
3-(2-{2-[1-(4-Chlorophenyl)ethylidene]hydrazino}-1,3-thiazol-4-yl)-8-methoxy-2H-chromen-2-one
CAS 244104-87-8C21H16ClN3O3S
![3-[(2-Chlorophenyl)methyl]-N-[(furan-2-yl)methyl]-4-oxo-2-sulfanylidene-1,2,3,4-tetrahydroquinazoline-7-carboxamide chemical structure, C21H16ClN3O3S, CAS 422273-41-4](/s/WLYFLFOPSQKADK-UHFFFAOYSA-N.svg)
3-[(2-Chlorophenyl)methyl]-N-[(furan-2-yl)methyl]-4-oxo-2-sulfanylidene-1,2,3,4-tetrahydroquinazoline-7-carboxamide
CAS 422273-41-4C21H16ClN3O3S
(E)-N-(5-(2-Chlorobenzyl)thiazol-2-yl)-2-cyano-3-(4-hydroxy-3-methoxyphenyl)acrylamide
CAS 468768-45-8C21H16ClN3O3S
(E)-N-(5-(4-Chlorobenzyl)thiazol-2-yl)-2-cyano-3-(4-hydroxy-3-methoxyphenyl)acrylamide
CAS 468769-00-8C21H16ClN3O3S
![N-[2-Chloro-4-[[(E)-3-phenylprop-2-enoyl]carbamothioylamino]phenyl]furan-2-carboxamide chemical structure, C21H16ClN3O3S, CAS 355412-07-6](/s/HSLNOIMMDBCGMC-DHZHZOJOSA-N.svg)
N-[2-Chloro-4-[[(E)-3-phenylprop-2-enoyl]carbamothioylamino]phenyl]furan-2-carboxamide
CAS 355412-07-6C21H16ClN3O3S
N-(4-Chlorophenyl)-2-(1,1-dioxido-4-phenyl-2H-1,2,3-benzothiadiazin-2-yl)acetamide
CAS 1031618-87-7C21H16ClN3O3S
![2-[(4-Chlorophenyl)sulfanyl]-N-(2-methoxy-5-[1,3]oxazolo[4,5-b]pyridin-2-ylphenyl)acetamide chemical structure, C21H16ClN3O3S, CAS 887691-64-7](/s/HOMSYNIYTSGPER-UHFFFAOYSA-N.svg)
2-[(4-Chlorophenyl)sulfanyl]-N-(2-methoxy-5-[1,3]oxazolo[4,5-b]pyridin-2-ylphenyl)acetamide
CAS 887691-64-7C21H16ClN3O3S
- 3-Chloro-N-(3-(2-methyl-4-oxoquinazolin-3(4H)-yl)phenyl)benzenesulfonamide898421-37-9C21H16ClN3O3S
- N-(4-Chlorophenyl)-2-[3-oxo-1-(thiophene-2-carbonyl)-1,2,3,4-tetrahydroquinoxalin-2-yl]acetamide484049-31-2C21H16ClN3O3S
- 2-[7-(4-Chlorophenyl)-4-oxothieno[3,2-d]pyrimidin-3(4H)-yl]-N-(2-methoxyphenyl)acetamide1105223-11-7C21H16ClN3O3S
- 2-[7-(4-Chlorophenyl)-4-oxothieno[3,2-d]pyrimidin-3(4H)-yl]-N-(3-methoxyphenyl)acetamide1105241-99-3C21H16ClN3O3S
- 2-[7-(4-Chlorophenyl)-4-oxothieno[3,2-d]pyrimidin-3(4H)-yl]-N-(4-methoxyphenyl)acetamide1105223-16-2C21H16ClN3O3S
- N-(4-Chlorophenyl)-2-[7-(4-methoxyphenyl)-4-oxothieno[3,2-d]pyrimidin-3(4H)-yl]acetamide1207047-19-5C21H16ClN3O3S
- 2-Chloro-N-[3-[[(E)-3-(furan-2-yl)prop-2-enoyl]carbamothioylamino]phenyl]benzamide429634-27-5C21H16ClN3O3S
- 4-Chloro-N-(3-(2-methyl-4-oxoquinazolin-3(4H)-yl)phenyl)benzenesulfonamide898421-11-9C21H16ClN3O3S
- 4-Chloro-N-(4-(2-methyl-4-oxoquinazolin-3(4H)-yl)phenyl)benzenesulfonamide898438-78-3C21H16ClN3O3S
- 2-Chloro-N-[4-(2-methyl-4-oxo-3,4-dihydroquinazolin-3-yl)phenyl]benzene-1-sulfonamide898439-05-9C21H16ClN3O3S
- (5-(6-Chloro-[1,3]dioxolo[4,5-g]quinolin-7-yl)-3-cyclopropyl-4,5-dihydro-1H-pyrazol-1-yl)(thiophen-2-yl)methanone1100291-69-7C21H16ClN3O3S
- N-(3-Chlorophenyl)-2-(1,1-dioxido-4-phenyl-2H-1,2,3-benzothiadiazin-2-yl)acetamide1031599-07-1C21H16ClN3O3S
- N-(3-Chlorophenyl)-2-[7-(4-methoxyphenyl)-4-oxothieno[3,2-d]pyrimidin-3(4H)-yl]acetamide1206990-44-4C21H16ClN3O3S
- N-(4-Chloro-2-methylphenyl)-1-(phenylsulfonyl)-1H-pyrrolo[2,3-b]pyridine-2-carboxamide477872-23-4C21H16ClN3O3S
- (2Z)-6-(2-Chlorobenzyl)-2-(4-ethoxybenzylidene)-7H-[1,3]thiazolo[3,2-b][1,2,4]triazine-3,7(2H)-dione638134-72-2C21H16ClN3O3S
- (5Z)-5-[4-(Allyloxy)-3-methoxybenzylidene]-2-(3-chlorophenyl)[1,3]thiazolo[3,2-b][1,2,4]triazol-6(5H)-one618853-99-9C21H16ClN3O3S
- (Z)-3-(Benzo[d][1,3]dioxol-5-yl)-N-(2-(3-chlorophenyl)-4,6-dihydro-2H-thieno[3,4-c]pyrazol-3-yl)acrylamide450341-13-6C21H16ClN3O3S
- Hsd17B13-IN-142758802-05-8C21H16ClN3O3S
- N-[(2-Chloro-5-nitrophenyl)carbamothioyl]-2,2-diphenylacetamide430442-67-4C21H16ClN3O3S
- N-[3-[[(E)-3-(4-Chlorophenyl)prop-2-enoyl]carbamothioylamino]phenyl]furan-2-carboxamide430447-21-5C21H16ClN3O3S
- 3-Chloro-N-(4-(2-methyl-4-oxoquinazolin-3(4H)-yl)phenyl)benzenesulfonamide898439-00-4C21H16ClN3O3S
- 2-Chloro-N-[3-(2-methyl-4-oxo-3,4-dihydroquinazolin-3-yl)phenyl]benzene-1-sulfonamide898456-45-6C21H16ClN3O3S
- 4-Chloro-N-(4-methyl-2-(3-oxo-3,4-dihydroquinoxalin-2-yl)phenyl)benzenesulfonamide887197-36-6C21H16ClN3O3S
- N-(4-Chloro-2-(3-oxo-3,4-dihydroquinoxalin-2-yl)phenyl)-4-methylbenzenesulfonamide887197-88-8C21H16ClN3O3S
- Benzyl 2-(7-(4-chlorophenyl)-2-methyl-4-oxothiazolo[4,5-d]pyridazin-5(4H)-yl)acetate953945-96-5C21H16ClN3O3S
- 1-((3-Chlorobenzyl)oxy)-N-(6-methylbenzo[d]thiazol-2-yl)-2-oxo-1,2-dihydropyridine-3-carboxamide852366-22-4C21H16ClN3O3S
- 1-((3-Chlorobenzyl)oxy)-N-(4-methylbenzo[d]thiazol-2-yl)-2-oxo-1,2-dihydropyridine-3-carboxamide852366-17-7C21H16ClN3O3S
- N-(3-Chlorophenyl)-2-[3-oxo-1-(thiophene-2-carbonyl)-1,2,3,4-tetrahydroquinoxalin-2-yl]acetamide1219389-06-6C21H16ClN3O3S
- 2-Chloro-5-[3-(2-methyl-pyridin-4-yl)-1H-indole-6-carbonyl]-benzenesulfonamide1189544-81-7C21H16ClN3O3S
- N1-(5-chloro-2-cyanophenyl)-N2-((5-(hydroxy(phenyl)methyl)thiophen-2-yl)methyl)oxalamide1797775-24-6C21H16ClN3O3S
- 2-Chloro-N-[4-(2,4-dimethoxyphenyl)-1,3-thiazol-2-yl]quinoline-4-carboxamide871799-94-9C21H16ClN3O3S
- 2-Amino-N-(5-chloro-2-methoxyphenyl)-3-(thiophene-2-carbonyl)indolizine-1-carboxamide898453-61-7C21H16ClN3O3S
- N-(4-(1H-Benzo[d]imidazol-2-yl)phenyl)-2-((4-chlorophenyl)sulfonyl)acetamide895463-23-7C21H16ClN3O3S
- 3-(3-Chloro-4-methoxyphenyl)-4-oxo-N-(thiophen-2-ylmethyl)-3,4-dihydroquinazoline-7-carboxamide1190245-47-6C21H16ClN3O3S
- (2Z)-2-[(3-Chloro-4-methylphenyl)imino]-8-methoxy-N-(1,3-thiazol-2-yl)-2H-chromene-3-carboxamide1327170-80-8C21H16ClN3O3S
- (2Z)-2-[(5-Chloro-2-methylphenyl)imino]-8-methoxy-N-(1,3-thiazol-2-yl)-2H-chromene-3-carboxamide1327181-61-2C21H16ClN3O3S
- 1-(3-Chloro-5-oxo-5H-benzo[4,5]cyclohepta[1,2-b]pyridin-7-yl)-N-(pyridin-2-ylmethyl)methanesulfonamide1001917-35-6C21H16ClN3O3S
- 4-Chloro-N-[4-(cyanomethyl)phenyl]-3-(phenylsulfamoyl)benzamide825658-91-1C21H16ClN3O3S
- 2-(2-Chlorophenyl)-1,4-dihydro-N-(2-methoxyphenyl)-5-methyl-4-oxothieno[2,3-d]pyrimidine-6-carboxamide1082141-25-0C21H16ClN3O3S
- 5-[4-(3-Chloro-4-methoxyphenyl)-6-quinolinyl]-3-pyridinesulfonamide1086058-56-1C21H16ClN3O3S
- 8-(4-Chloro-6,11-dihydrodibenzo[b,e]thiepin-11-yl)-4-hydroxy-7,8-dihydro-3H-pyrazino[1,2-b]pyridazine-3,5(6H)-dione1674398-01-6C21H16ClN3O3S
- 8-(3-Chloro-6,11-dihydrodibenzo[b,e]thiepin-11-yl)-4-hydroxy-7,8-dihydro-3H-pyrazino[1,2-b]pyridazine-3,5(6H)-dione1674395-73-3C21H16ClN3O3S
- 4-(4-Chlorobenzoyl)-3-hydroxy-1-(5-methyl-1,3,4-thiadiazol-2-yl)-5-(4-methylphenyl)-2,5-dihydro-1H-pyrrol-2-oneC21H16ClN3O3S
- Benzenesulfonic acid, (5-chloro-1,2-dihydro-2-oxo-1-(phenylmethyl)-3H-indol-3-ylidene)hydrazide99448-93-8C21H16ClN3O3S
Frequently asked questions
What is the molar mass of C21H16ClN3O3S?
The molar mass of C21H16ClN3O3S is 425.89 g/mol, calculated from standard atomic weights for 21 carbon atoms, 16 hydrogen atoms, 1 chlorine atom, 3 nitrogen atoms, 3 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 425.0601 Da.
How many compounds have the formula C21H16ClN3O3S?
CompoundList lists 68 compounds with the molecular formula C21H16ClN3O3S, including RefChem:382258, 5-(4-Chlorophenyl)-3-hydroxy-1-(5-methyl-1,3,4-thiadiazol-2-yl)-4-(4-methylbenzoyl)-2,5-dihydro-1H-pyrrol-2-one, 9-CL-5-ME-5(4-Nitro-PH)2(2-thienyl)-1,10B-dihydropyrazolo(1,5-C)(1,3)benzoxazine. 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 C21H16ClN3O3S?
C21H16ClN3O3S has a degree of unsaturation of 15. 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.