C21H21NO3S2
42 compounds have this formula on CompoundList.
- Molar mass
- 399.52g/mol
- Monoisotopic mass
- 399.0963Da
- Atoms
- 48
- Elements
- 5
- Rings plus double bonds
- 12
The formula C21H21NO3S2 describes a molecule made of 21 carbon atoms, 21 hydrogen atoms, 1 nitrogen atom, 3 oxygen atoms and 2 sulfur atoms. 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 × 2163.13%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 215.30%1.008 × 21 = 21.168 g/mol
- N Nitrogen × 13.51%14.007 × 1 = 14.007 g/mol
- O Oxygen × 312.01%15.999 × 3 = 47.997 g/mol
- S Sulfur × 216.05%32.06 × 2 = 64.120 g/mol
Compounds with the formula C21H21NO3S2
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 42 of 42 compounds
![Naphtho[1,2-d]thiazolium, 1-ethyl-2-methyl-, 4-methylbenzenesulfonate (1:1) chemical structure, C21H21NO3S2, CAS 42952-29-4](/s/KTTNCJKZKIRUTI-UHFFFAOYSA-M.svg)
-lambda4-sulfanylidene}-4-methylbenzenesulfonamide chemical structure, C21H21NO3S2](/s/IMUPOWQOXOCVBN-UHFFFAOYSA-N.svg)
![Methyl 2-[(4-tert-butylbenzoyl)amino]-4-thiophen-2-ylthiophene-3-carboxylate chemical structure, C21H21NO3S2, CAS 444937-89-7](/s/BAAUPFPLQJUHRN-UHFFFAOYSA-N.svg)
![4-Methyl-N-[methyl-(4-phenylmethoxyphenyl)-lambda4-sulfanylidene]benzenesulfonamide chemical structure, C21H21NO3S2, CAS 21306-65-0](/s/id-2802868.svg)
![Methyl 2-[(5-ethylthiophene-3-carbonyl)amino]-5-(1-phenylethyl)thiophene-3-carboxylate chemical structure, C21H21NO3S2, CAS 438221-82-0](/s/HXXGPYMHCJSZSS-UHFFFAOYSA-N.svg)
![Ethyl 2-[(5-methylthiophene-3-carbonyl)amino]-5-(1-phenylethyl)thiophene-3-carboxylate chemical structure, C21H21NO3S2, CAS 438229-48-2](/s/DMECOTVQGDYIOR-UHFFFAOYSA-N.svg)
![Naphtho[2,3-d]thiazolium, 3-ethyl-2-methyl-, 4-methylbenzenesulfonate (1:1) chemical structure, C21H21NO3S2, CAS 51082-78-1](/s/MHAMIQHTHSFUPD-UHFFFAOYSA-M.svg)
![Ethyl 4-(2,5-dimethylphenyl)-2-[(3-methylthiophene-2-carbonyl)amino]thiophene-3-carboxylate chemical structure, C21H21NO3S2, CAS 445232-85-9](/s/CILMAIUTJBJYIE-UHFFFAOYSA-N.svg)
![(5E)-5-[(3-Ethoxy-4-phenylmethoxyphenyl)methylidene]-3-ethyl-2-sulfanylidene-1,3-thiazolidin-4-one chemical structure, C21H21NO3S2, CAS 299906-35-7](/s/XWGGFGPAQMKKBR-CPNJWEJPSA-N.svg)
![4,6-Dimethyl-2-[(4-methylphenyl)sulfinyl]-3-[(4-methylphenyl)sulfonyl]pyridine chemical structure, C21H21NO3S2, CAS 477762-78-0](/s/SPWZDTMDHDNPLN-UHFFFAOYSA-N.svg)
![(5E)-3-Ethyl-5-{3-methoxy-4-[(3-methylbenzyl)oxy]benzylidene}-2-thioxo-1,3-thiazolidin-4-one chemical structure, C21H21NO3S2, CAS 6612-54-0](/s/NWDVMPFEQMNWBW-XDHOZWIPSA-N.svg)
![3-Ethyl-5-{4-methoxy-3-[(2-methylphenoxy)methyl]benzylidene}-2-thioxo-1,3-thiazolidin-4-one chemical structure, C21H21NO3S2, CAS 515849-13-5](/s/CIDLJRHMFIVLGG-UNOMPAQXSA-N.svg)
![(5Z)-5-[1-(3,4-Dimethoxyphenyl)ethylidene]-3-(2,3-dimethylphenyl)-2-sulfanylidene-1,3-thiazolidin-4-one chemical structure, C21H21NO3S2, CAS 612803-59-5](/s/GROPBDSANLZYTD-RGEXLXHISA-N.svg)
![4-Methylsulfanyl-N-[2-(2-phenylphenoxy)ethyl]benzenesulfonamide chemical structure, C21H21NO3S2, CAS 712344-10-0](/s/ZVTUWMKULYMWKX-UHFFFAOYSA-N.svg)
![(5Z)-5-[(2,4-Diethoxyphenyl)methylidene]-3-(4-methylphenyl)-2-sulfanylidene-1,3-thiazolidin-4-one chemical structure, C21H21NO3S2, CAS 434312-55-7](/s/QVJWYOFVYVXORD-UNOMPAQXSA-N.svg)
![(5E)-5-[[3-Ethoxy-4-[(3-methylphenyl)methoxy]phenyl]methylidene]-3-methyl-2-sulfanylidene-1,3-thiazolidin-4-one chemical structure, C21H21NO3S2, CAS 429649-24-1](/s/RQCOOQGKTBRYAD-XDHOZWIPSA-N.svg)
- (5Z)-5-[(3-Methoxy-4-phenylmethoxyphenyl)methylidene]-3-propan-2-yl-2-sulfanylidene-1,3-thiazolidin-4-one431054-85-2C21H21NO3S2
- (5E)-3-Ethyl-5-[[3-methoxy-4-[(2-methylphenyl)methoxy]phenyl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one429634-06-0C21H21NO3S2
- (5Z)-5-[[4-[2-(2,4-Dimethylphenoxy)ethoxy]phenyl]methylidene]-3-methyl-2-sulfanylidene-1,3-thiazolidin-4-one6372-17-4C21H21NO3S2
- (5E)-3-Methyl-5-[[2-(2-methyl-3-phenoxypropoxy)phenyl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one6601-90-7C21H21NO3S2
- N-(2-Hydroxy-2-(thiophen-2-yl)-2-(thiophen-3-yl)ethyl)-1-(2-methoxyphenyl)cyclopropanecarboxamide2034400-71-8C21H21NO3S2
- 2-((2,2-Dimethyl-2,3-dihydrobenzofuran-7-yl)oxy)-N-(thiophen-2-yl(thiophen-3-yl)methyl)acetamide2034605-63-3C21H21NO3S2
- Benzo[b]thiophen-2-yl(4-(benzylsulfonyl)piperidin-1-yl)methanone2034520-84-6C21H21NO3S2
- (5E)-5-[[3-Ethoxy-4-[(2-methylphenyl)methoxy]phenyl]methylidene]-3-methyl-2-sulfanylidene-1,3-thiazolidin-4-one429646-58-2C21H21NO3S2
- (5E)-5-[[3-Ethoxy-4-[(4-methylphenyl)methoxy]phenyl]methylidene]-3-methyl-2-sulfanylidene-1,3-thiazolidin-4-one430441-81-9C21H21NO3S2
- (Z)-3-(2,3-Dimethylphenyl)-5-(4-ethoxy-3-methoxybenzylidene)-2-thioxothiazolidin-4-one612802-71-8C21H21NO3S2
- (Z)-3-(3,4-Dimethylphenyl)-5-(4-ethoxy-3-methoxybenzylidene)-2-thioxothiazolidin-4-one499118-05-7C21H21NO3S2
- (5E)-3-Ethyl-5-[[4-(3-phenoxypropoxy)phenyl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one429639-26-9C21H21NO3S2
- (5E)-3-Methyl-5-[[4-[3-(4-methylphenoxy)propoxy]phenyl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one428855-88-3C21H21NO3S2
- (5E)-3-Methyl-5-[[4-[3-(3-methylphenoxy)propoxy]phenyl]methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one429654-12-6C21H21NO3S2
- N-(2-{[2,3'-Bithiophene]-5-yl}-2-hydroxyethyl)-1-(2-methoxyphenyl)cyclopropane-1-carboxamide2097903-18-7C21H21NO3S2
- N-(2-{[2,2'-Bithiophene]-5-yl}-2-hydroxyethyl)-1-(2-methoxyphenyl)cyclopropane-1-carboxamide2097899-88-0C21H21NO3S2
- 3-(3-Methoxypropyl)-5-[[3-(phenylmethoxy)phenyl]methylene]-2-thioxo-4-thiazolidinone933671-82-0C21H21NO3S2
- 3-(2-Methoxyethyl)-5-[[3-[(4-methylphenyl)methoxy]phenyl]methylene]-2-thioxo-4-thiazolidinone933672-35-6C21H21NO3S2
Frequently asked questions
What is the molar mass of C21H21NO3S2?
The molar mass of C21H21NO3S2 is 399.52 g/mol, calculated from standard atomic weights for 21 carbon atoms, 21 hydrogen atoms, 1 nitrogen atom, 3 oxygen atoms and 2 sulfur atoms. The monoisotopic mass is 399.0963 Da.
How many compounds have the formula C21H21NO3S2?
CompoundList lists 42 compounds with the molecular formula C21H21NO3S2, including Naphtho[1,2-d]thiazolium, 1-ethyl-2-methyl-, 4-methylbenzenesulfonate (1:1), N-{[4-(Benzyloxy)phenyl](methyl)-lambda4-sulfanylidene}-4-methylbenzenesulfonamide, Methyl 2-[(4-tert-butylbenzoyl)amino]-4-thiophen-2-ylthiophene-3-carboxylate. 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 C21H21NO3S2?
C21H21NO3S2 has a degree of unsaturation of 12. 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.