Molecular formula
C21H21ClN4O3S
65 compounds have this formula on CompoundList.
- Molar mass
- 444.93g/mol
- Monoisotopic mass
- 444.1023Da
- Atoms
- 51
- Elements
- 6
- Rings plus double bonds
- 13
The formula C21H21ClN4O3S describes a molecule made of 21 carbon atoms, 21 hydrogen atoms, 1 chlorine atom, 4 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 × 2156.69%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 214.76%1.008 × 21 = 21.168 g/mol
- Cl Chlorine × 17.97%35.45 × 1 = 35.450 g/mol
- N Nitrogen × 412.59%14.007 × 4 = 56.028 g/mol
- O Oxygen × 310.79%15.999 × 3 = 47.997 g/mol
- S Sulfur × 17.21%32.06 × 1 = 32.060 g/mol
Look up another formula
Compounds with the formula C21H21ClN4O3S
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 65 of 65 compounds
![4-Chloro-5-{4-[(4-methylphenyl)sulfonyl]piperazin-1-yl}-2-phenylpyridazin-3(2H)-one chemical structure, C21H21ClN4O3S, CAS 695219-23-9](/s/CSRGLZZLWQSAMZ-UHFFFAOYSA-N.svg)
4-Chloro-5-{4-[(4-methylphenyl)sulfonyl]piperazin-1-yl}-2-phenylpyridazin-3(2H)-one
CAS 695219-23-9C21H21ClN4O3S
2-((5-((4-Chlorophenoxy)methyl)-1,3,4-oxadiazol-2-yl)thio)-1-(4-phenylpiperazin-1-yl)ethanone
CAS 851129-55-0C21H21ClN4O3S
![7-Chloro-2-{[4-(2-phenylethenesulfonyl)piperazin-1-yl]methyl}-3,4-dihydroquinazolin-4-one chemical structure, C21H21ClN4O3S, CAS 852542-82-6](/s/SWVGFORMUIBORT-MDWZMJQESA-N.svg)
7-Chloro-2-{[4-(2-phenylethenesulfonyl)piperazin-1-yl]methyl}-3,4-dihydroquinazolin-4-one
CAS 852542-82-6C21H21ClN4O3S
![N-(4-{[4-(7-Chloroquinolin-4-yl)piperazin-1-yl]sulfonyl}phenyl)acetamide chemical structure, C21H21ClN4O3S, CAS 695219-24-0](/s/GFHLFZXXDFZLMR-UHFFFAOYSA-N.svg)
N-(4-{[4-(7-Chloroquinolin-4-yl)piperazin-1-yl]sulfonyl}phenyl)acetamide
CAS 695219-24-0C21H21ClN4O3S
2-((6-((2-Chlorobenzyl)amino)pyrimidin-4-yl)thio)-N-(2,4-dimethoxyphenyl)acetamide
CAS 1251683-08-5C21H21ClN4O3S
![N-(5-Chloro-2-methylphenyl)-2-((4-oxo-3-((tetrahydrofuran-2-yl)methyl)-3,4-dihydropyrido[2,3-d]pyrimidin-2-yl)thio)acetamide chemical structure, C21H21ClN4O3S, CAS 902950-65-6](/s/FHEVEIPGEOUPJX-UHFFFAOYSA-N.svg)
N-(5-Chloro-2-methylphenyl)-2-((4-oxo-3-((tetrahydrofuran-2-yl)methyl)-3,4-dihydropyrido[2,3-d]pyrimidin-2-yl)thio)acetamide
CAS 902950-65-6C21H21ClN4O3S
4-(4-((2-Chlorophenyl)sulfonyl)piperazin-1-yl)-6-(4-methoxyphenyl)pyrimidine
CAS 1351633-30-1C21H21ClN4O3S
![3-[4-(3-Chlorobenzenesulfonyl)piperazin-1-yl]-6-(2-methoxyphenyl)pyridazine chemical structure, C21H21ClN4O3S, CAS 1021218-86-9](/s/KICQUINXDIKTCJ-UHFFFAOYSA-N.svg)
3-[4-(3-Chlorobenzenesulfonyl)piperazin-1-yl]-6-(2-methoxyphenyl)pyridazine
CAS 1021218-86-9C21H21ClN4O3S
3-(4-((2-Chlorophenyl)sulfonyl)piperazin-1-yl)-6-(2-methoxyphenyl)pyridazine
CAS 1021257-48-6C21H21ClN4O3S
3-(4-Chlorophenyl)-6-(4-((4-methoxyphenyl)sulfonyl)piperazin-1-yl)pyridazine
CAS 1021104-47-1C21H21ClN4O3S
Ethanesulfonanilide, 4'-(benzo(b)(1,8)naphthyridin-5-ylamino)-3'-methoxy-, hydrochloride
CAS 71802-93-2C21H21ClN4O3S
3-(4-((5-Chloro-2-methoxyphenyl)sulfonyl)piperazin-1-yl)-6-phenylpyridazine
CAS 1021035-92-6C21H21ClN4O3S
![3-(4-Chlorophenyl)-N-[3-(piperidine-1-sulfonyl)phenyl]-1H-pyrazole-4-carboxamide chemical structure, C21H21ClN4O3S, CAS 1171486-33-1](/s/LIKPCUYPZUOYKD-UHFFFAOYSA-N.svg)
3-(4-Chlorophenyl)-N-[3-(piperidine-1-sulfonyl)phenyl]-1H-pyrazole-4-carboxamide
CAS 1171486-33-1C21H21ClN4O3S
![4-{5-[(2-Chlorobenzyl)amino]-4-cyano-1,3-oxazol-2-yl}-N,N-diethylbenzenesulfonamide chemical structure, C21H21ClN4O3S, CAS 941242-98-4](/s/SDUAKSVEXHBZHU-UHFFFAOYSA-N.svg)
4-{5-[(2-Chlorobenzyl)amino]-4-cyano-1,3-oxazol-2-yl}-N,N-diethylbenzenesulfonamide
CAS 941242-98-4C21H21ClN4O3S
![N-(3-Chloro-2-methylphenyl)-2-[3-(morpholine-4-carbonyl)-5-(thiophen-2-yl)-1H-pyrazol-1-yl]acetamide chemical structure, C21H21ClN4O3S, CAS 1171340-57-0](/s/LHFITUDPAKNCNM-UHFFFAOYSA-N.svg)
N-(3-Chloro-2-methylphenyl)-2-[3-(morpholine-4-carbonyl)-5-(thiophen-2-yl)-1H-pyrazol-1-yl]acetamide
CAS 1171340-57-0C21H21ClN4O3S
![2-[(6-{[(4-Chlorophenyl)methyl]amino}pyrimidin-4-yl)sulfanyl]-N-(2,5-dimethoxyphenyl)acetamide chemical structure, C21H21ClN4O3S, CAS 1251683-14-3](/s/MJJHVPIZCPDTHN-UHFFFAOYSA-N.svg)
2-[(6-{[(4-Chlorophenyl)methyl]amino}pyrimidin-4-yl)sulfanyl]-N-(2,5-dimethoxyphenyl)acetamide
CAS 1251683-14-3C21H21ClN4O3S
![2-[[5-(4-Chlorophenyl)-4-(4-methoxyphenyl)-1,2,4-triazol-3-yl]sulfanyl]-1-morpholin-4-ylethanone chemical structure, C21H21ClN4O3S, CAS 485328-82-3](/s/CBTOHZSSGQCKJR-UHFFFAOYSA-N.svg)
2-[[5-(4-Chlorophenyl)-4-(4-methoxyphenyl)-1,2,4-triazol-3-yl]sulfanyl]-1-morpholin-4-ylethanone
CAS 485328-82-3C21H21ClN4O3S
Ziprasidone sulfone
CAS 188797-77-5C21H21ClN4O3S
![2-[[5-(2-Chlorophenyl)-4-prop-2-enyl-1,2,4-triazol-3-yl]sulfanyl]-N-(2,4-dimethoxyphenyl)acetamide chemical structure, C21H21ClN4O3S, CAS 848994-51-4](/s/ATSYHNXOWKXJDZ-UHFFFAOYSA-N.svg)
2-[[5-(2-Chlorophenyl)-4-prop-2-enyl-1,2,4-triazol-3-yl]sulfanyl]-N-(2,4-dimethoxyphenyl)acetamide
CAS 848994-51-4C21H21ClN4O3S
2-((3-(2-Acetamidoethyl)-4-oxo-3,4-dihydroquinazolin-2-yl)thio)-N-(3-chloro-4-methylphenyl)acetamide
CAS 443355-11-1C21H21ClN4O3S
N-(2-Chlorobenzyl)-2-(5-methoxy-2-(((4-methylpyrimidin-2-yl)thio)methyl)-4-oxopyridin-1(4H)-yl)acetamide
CAS 920200-54-0C21H21ClN4O3S
N-(4-(3-(4-(3-Chlorophenyl)piperazin-1-yl)-3-oxopropyl)thiazol-2-yl)furan-2-carboxamide
CAS 1021219-24-8C21H21ClN4O3S
![N-(5-Chloro-2-methoxyphenyl)-2-[1-oxo-4-(thiomorpholin-4-yl)-1,2-dihydrophthalazin-2-yl]acetamide chemical structure, C21H21ClN4O3S, CAS 1251599-72-0](/s/QRTHFSVJDULABU-UHFFFAOYSA-N.svg)
N-(5-Chloro-2-methoxyphenyl)-2-[1-oxo-4-(thiomorpholin-4-yl)-1,2-dihydrophthalazin-2-yl]acetamide
CAS 1251599-72-0C21H21ClN4O3S
![Ethyl 4-[({[5-(2-chlorophenyl)-4-ethyl-4H-1,2,4-triazol-3-yl]sulfanyl}acetyl)amino]benzoate chemical structure, C21H21ClN4O3S, CAS 693812-36-1](/s/URXMGNSVSDDDQP-UHFFFAOYSA-N.svg)
Ethyl 4-[({[5-(2-chlorophenyl)-4-ethyl-4H-1,2,4-triazol-3-yl]sulfanyl}acetyl)amino]benzoate
CAS 693812-36-1C21H21ClN4O3S
- 5-((2-Chlorophenyl)(2,6-dimethylmorpholino)methyl)-2-(furan-2-yl)thiazolo[3,2-b][1,2,4]triazol-6-ol1052555-64-2C21H21ClN4O3S
- 2-(3-(3-Chlorophenyl)ureido)-N-(2-methoxyphenethyl)-4-methylthiazole-5-carboxamide942011-05-4C21H21ClN4O3S
- 2-(3-(3-Chlorophenyl)ureido)-N-(3-methoxyphenethyl)-4-methylthiazole-5-carboxamide941886-71-1C21H21ClN4O3S
- 2-{[5-(5-Chloro-2-methoxyphenyl)-4-(prop-2-en-1-yl)-4H-1,2,4-triazol-3-yl]sulfanyl}-N-(3-methoxyphenyl)acetamide892187-01-8C21H21ClN4O3S
- N-(2-Chlorobenzyl)-2-(3-(morpholine-4-carbonyl)-5-(thiophen-2-yl)-1H-pyrazol-1-yl)acetamide1171956-10-7C21H21ClN4O3S
- 4-(4-((4-Chlorophenyl)sulfonyl)piperazin-1-yl)-2-methyl-6-phenoxypyrimidine946354-79-6C21H21ClN4O3S
- N-(3-Chloro-4-methoxyphenyl)-2-[1-oxo-4-(thiomorpholin-4-yl)-1,2-dihydrophthalazin-2-yl]acetamide1251583-00-2C21H21ClN4O3S
- N-(3-Chloro-4-methoxyphenyl)-2-{[5-(phenoxymethyl)-4-(prop-2-en-1-yl)-4H-1,2,4-triazol-3-yl]sulfanyl}acetamide710983-93-0C21H21ClN4O3S
- Ethyl 2-{2-[5-(4-chlorophenyl)-4-(4-methylphenyl)-1,2,4-triazol-3-ylthio]acety lamino}acetate843632-91-7C21H21ClN4O3S
- N-(3-Chloro-4-methoxyphenyl)-2-{[5-(4-methoxyphenyl)-4-(prop-2-en-1-yl)-4H-1,2,4-triazol-3-yl]sulfanyl}acetamide848988-52-3C21H21ClN4O3S
- N-(3-Chloro-4-cyanophenyl)-2-[4-(2-phenylethenesulfonyl)piperazin-1-yl]acetamide790245-90-8C21H21ClN4O3S
- N-(4-Chlorophenyl)-2-(2-{[(4,6-dimethylpyrimidin-2-yl)sulfanyl]methyl}-5-methoxy-4-oxo-1,4-dihydropyridin-1-yl)acetamide920341-95-3C21H21ClN4O3S
- 3-(2-{[(3-Chlorophenyl)carbamoyl]amino}-1,3-thiazol-4-yl)-N-[(2-methoxyphenyl)methyl]propanamide1040668-35-6C21H21ClN4O3S
- 2-({1-[(Benzylcarbamoyl)methyl]-5-(hydroxymethyl)-1H-imidazol-2-yl}sulfanyl)-N-(3-chlorophenyl)acetamide921503-99-3C21H21ClN4O3S
- 3-((4-Chlorophenyl)sulfonyl)-6-(4-(3-methoxyphenyl)piperazin-1-yl)pyridazine1105223-95-7C21H21ClN4O3S
- N-(4-(3-(4-(2-Chlorophenyl)piperazin-1-yl)-3-oxopropyl)thiazol-2-yl)furan-2-carboxamide1021266-20-5C21H21ClN4O3S
- 4-Cyano-N-[2-(dimethylamino)ethyl]-N-{10,13-dioxa-4-thia-6-azatricyclo[7.4.0.0^{3,7}]trideca-1,3(7),5,8-tetraen-5-yl}benzamide hydrochloride1215644-43-1C21H21ClN4O3S
- 5-[(4-Chlorophenyl)(2,6-dimethylmorpholin-4-yl)methyl]-2-(furan-2-yl)-[1,2,4]triazolo[3,2-b][1,3]thiazol-6-ol1052555-78-8C21H21ClN4O3S
- 2-(3-(3-Chlorophenyl)ureido)-N-(4-methoxyphenethyl)-4-methylthiazole-5-carboxamide941916-59-2C21H21ClN4O3S
- 2-(3-(4-Chlorophenyl)ureido)-N-(3-methoxyphenethyl)-4-methylthiazole-5-carboxamide941975-46-8C21H21ClN4O3S
- 5-((2-(4-Chlorophenyl)-2-oxoethyl)thio)-7-cyclopentyl-1,3-dimethylpyrimido[4,5-d]pyrimidine-2,4(1H,3H)-dione872621-14-2C21H21ClN4O3S
- N-([1,3]Dioxolo[4',5':4,5]benzo[1,2-d]thiazol-6-yl)-4-cyano-N-(3-(dimethylamino)propyl)benzamide hydrochloride1215645-45-6C21H21ClN4O3S
- 2-(2-(3-(3-Chlorophenyl)ureido)thiazol-4-yl)-N-(2-methoxyphenethyl)acetamide897621-26-0C21H21ClN4O3S
- 2-(2-(3-(3-Chlorophenyl)ureido)thiazol-4-yl)-N-(4-methoxyphenethyl)acetamide897621-28-2C21H21ClN4O3S
- N-(4-Chlorophenethyl)-2-(2-(3-(2-methoxyphenyl)ureido)thiazol-4-yl)acetamide921474-54-6C21H21ClN4O3S
- N-(3-Chlorophenyl)-2-(2-{[(4,6-dimethylpyrimidin-2-yl)sulfanyl]methyl}-5-methoxy-4-oxo-1,4-dihydropyridin-1-yl)acetamide920409-99-0C21H21ClN4O3S
- 2-(2-{[(4-Chlorophenyl)carbamoyl]amino}-1,3-thiazol-4-yl)-N-[2-(2-methoxyphenyl)ethyl]acetamide946325-90-2C21H21ClN4O3S
- 2-({1-[(Benzylcarbamoyl)methyl]-5-(hydroxymethyl)-1H-imidazol-2-yl}sulfanyl)-N-(4-chlorophenyl)acetamide921886-41-1C21H21ClN4O3S
- 2-{[1-({[(4-Chlorophenyl)methyl]carbamoyl}methyl)-5-(hydroxymethyl)-1H-imidazol-2-yl]sulfanyl}-N-phenylacetamide921876-22-4C21H21ClN4O3S
- N-(4-(3-(4-(4-Chlorophenyl)piperazin-1-yl)-3-oxopropyl)thiazol-2-yl)furan-2-carboxamide1021266-46-5C21H21ClN4O3S
- 4-(4-((2-Chlorophenyl)sulfonyl)piperazin-1-yl)-2-methyl-6-phenoxypyrimidine946354-83-2C21H21ClN4O3S
- 4-(4-((3-Chlorophenyl)sulfonyl)piperazin-1-yl)-2-methyl-6-phenoxypyrimidine946272-31-7C21H21ClN4O3S
- N-[2-(6-Chloro-1H-indol-1-yl)ethyl]-2-{4-[(methylsulfonyl)amino]-1H-indol-1-yl}acetamide1630865-36-9C21H21ClN4O3S
- (4-(Benzo[d]isothiazol-3-yl)piperazin-1-yl)(5-chloro-6-((tetrahydrofuran-3-yl)oxy)pyridin-3-yl)methanone1903564-41-9C21H21ClN4O3S
- N-(5-Chloro-2-methoxyphenyl)-2-[[5-(4-methoxyphenyl)-4-prop-2-enyl-1,2,4-triazol-3-yl]sulfanyl]acetamide701226-44-0C21H21ClN4O3S
- Methyl 2-chloro-5-[({[4-ethyl-5-(4-methylphenyl)-4H-1,2,4-triazol-3-yl]sulfanyl}acetyl)amino]benzoate694468-33-2C21H21ClN4O3S
- (3-Chloro-1-benzothiophen-2-yl)-[4-[3-(ethylamino)-4-nitrophenyl]piperazin-1-yl]methanone717831-56-6C21H21ClN4O3S
- 2-({7-Chloro-3-[(furan-2-yl)methyl]-4-oxo-3,4-dihydroquinazolin-2-yl}sulfanyl)-N-(1-cyano-1,2-dimethylpropyl)acetamide783315-72-0C21H21ClN4O3S
- 2-(2-(3-(4-Chlorophenyl)ureido)thiazol-4-yl)-N-(3-methoxyphenethyl)acetamide946250-67-5C21H21ClN4O3S
- 2-(4-Chlorobenzenesulfonamido)-N-[5-(dimethylamino)pyridin-2-yl]-2-phenylacetamide2470439-84-8C21H21ClN4O3S
- 2-Amino-4-thiazoleacetic acid 2-[[4-[(2-chlorophenyl)methoxy]-3-ethoxyphenyl]methylene]hydrazide886015-70-9C21H21ClN4O3S
Frequently asked questions
What is the molar mass of C21H21ClN4O3S?
The molar mass of C21H21ClN4O3S is 444.93 g/mol, calculated from standard atomic weights for 21 carbon atoms, 21 hydrogen atoms, 1 chlorine atom, 4 nitrogen atoms, 3 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 444.1023 Da.
How many compounds have the formula C21H21ClN4O3S?
CompoundList lists 65 compounds with the molecular formula C21H21ClN4O3S, including 4-Chloro-5-{4-[(4-methylphenyl)sulfonyl]piperazin-1-yl}-2-phenylpyridazin-3(2H)-one, 2-((5-((4-Chlorophenoxy)methyl)-1,3,4-oxadiazol-2-yl)thio)-1-(4-phenylpiperazin-1-yl)ethanone, 7-Chloro-2-{[4-(2-phenylethenesulfonyl)piperazin-1-yl]methyl}-3,4-dihydroquinazolin-4-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 C21H21ClN4O3S?
C21H21ClN4O3S has a degree of unsaturation of 13. 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.