Molecular formula
C21H19NO3
197 compounds have this formula on CompoundList.
- Molar mass
- 333.39g/mol
- Monoisotopic mass
- 333.1365Da
- Atoms
- 44
- Elements
- 4
- Rings plus double bonds
- 13
The formula C21H19NO3 describes a molecule made of 21 carbon atoms, 19 hydrogen atoms, 1 nitrogen atom and 3 oxygen 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 × 2175.66%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 195.74%1.008 × 19 = 19.152 g/mol
- N Nitrogen × 14.20%14.007 × 1 = 14.007 g/mol
- O Oxygen × 314.40%15.999 × 3 = 47.997 g/mol
Look up another formula
Compounds with the formula C21H19NO3
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 197 compounds
Acetyl-DL-phenylalanine beta-naphthyl ester
CAS 20874-31-1C21H19NO3
![4-{[(3-Phenoxybenzyl)amino]methyl}benzoic acid chemical structure, C21H19NO3, CAS 451498-56-9](/s/XTQQTZXTZRUCNS-UHFFFAOYSA-N.svg)
4-{[(3-Phenoxybenzyl)amino]methyl}benzoic acid
CAS 451498-56-9C21H19NO3
![3-Hydroxy-1-methyl-3-[(3E,5E)-2-oxo-6-phenylhexa-3,5-dienyl]indol-2-one chemical structure, C21H19NO3, CAS 1164467-83-7](/s/DHXLGCCCWUZASP-YDWXAUTNSA-N.svg)
3-Hydroxy-1-methyl-3-[(3E,5E)-2-oxo-6-phenylhexa-3,5-dienyl]indol-2-one
CAS 1164467-83-7C21H19NO3
![3-Hydroxy-5-methyl-3-[(3E,5E)-2-oxo-6-phenylhexa-3,5-dienyl]-1H-indol-2-one chemical structure, C21H19NO3, CAS 1164491-44-4](/s/OIXSHZJIDWYQQO-NXZHAISVSA-N.svg)
3-Hydroxy-5-methyl-3-[(3E,5E)-2-oxo-6-phenylhexa-3,5-dienyl]-1H-indol-2-one
CAS 1164491-44-4C21H19NO3
![3-[1-(3-Acetylphenyl)-5-phenyl-1H-pyrrol-2-yl]propanoic acid chemical structure, C21H19NO3, CAS 693814-94-7](/s/ZWADSRDBOIOLQA-UHFFFAOYSA-N.svg)
3-[1-(3-Acetylphenyl)-5-phenyl-1H-pyrrol-2-yl]propanoic acid
CAS 693814-94-7C21H19NO3
Benfluron N-oxide
CAS 91416-10-3C21H19NO3
2-(4-Methoxyphenoxy)-N-(2-phenylphenyl)acetamide
CAS 332053-09-5C21H19NO3
3-(2,3-Dihydro-1,4-benzodioxin-6-ylamino)-1-(2-naphthyl)-1-propanone
CAS 477334-35-3C21H19NO3
![3-[1-(4-Acetylphenyl)-5-phenyl-1H-pyrrol-2-yl]propanoic acid chemical structure, C21H19NO3, CAS 1601-28-1](/s/UDBMQGXJYYQCBF-UHFFFAOYSA-N.svg)
3-[1-(4-Acetylphenyl)-5-phenyl-1H-pyrrol-2-yl]propanoic acid
CAS 1601-28-1C21H19NO3
![N-[4-(4-Methoxyphenoxy)phenyl]-2-methylbenzamide chemical structure, C21H19NO3, CAS 521295-60-3](/s/RKJYVDIBHNIJKQ-UHFFFAOYSA-N.svg)
N-[4-(4-Methoxyphenoxy)phenyl]-2-methylbenzamide
CAS 521295-60-3C21H19NO3
![N-[4-(2-Methoxyphenoxy)phenyl]-2-methylbenzamide chemical structure, C21H19NO3, CAS 667446-92-6](/s/LZAMSWXEMVNNCB-UHFFFAOYSA-N.svg)
N-[4-(2-Methoxyphenoxy)phenyl]-2-methylbenzamide
CAS 667446-92-6C21H19NO3
4-Methoxyphenyl 1,2,3,4-tetrahydro-9-acridinecarboxylate
CAS 853317-77-8C21H19NO3
![N-[4-(2-Methoxyphenoxy)phenyl]-2-phenylacetamide chemical structure, C21H19NO3, CAS 667407-35-4](/s/LLGKLIUNUDTIGA-UHFFFAOYSA-N.svg)
N-[4-(2-Methoxyphenoxy)phenyl]-2-phenylacetamide
CAS 667407-35-4C21H19NO3
![3-[2-(2,5-Dimethylphenyl)-2-oxoethyl]-3-hydroxy-1-(prop-2-yn-1-yl)-1,3-dihydro-2H-indol-2-one chemical structure, C21H19NO3, CAS 432499-11-1](/s/PIJNIYSFMMINLI-UHFFFAOYSA-N.svg)
3-[2-(2,5-Dimethylphenyl)-2-oxoethyl]-3-hydroxy-1-(prop-2-yn-1-yl)-1,3-dihydro-2H-indol-2-one
CAS 432499-11-1C21H19NO3
2-Oxo-N-(1-phenylethyl)-8-(prop-2-en-1-yl)-2H-chromene-3-carboxamide
CAS 325802-46-8C21H19NO3
5-(2-(Dimethylamino)ethoxy)-9-hydroxy-7H-benzo(c)fluoren-7-one
CAS 115029-30-6C21H19NO3
2-Oxo-N-(2-phenylethyl)-8-(prop-2-en-1-yl)-2H-chromene-3-carboxamide
CAS 325804-48-6C21H19NO3
8-Allyl-N-(2,5-dimethylphenyl)-2-oxo-2H-chromene-3-carboxamide
CAS 6416-19-9C21H19NO3
1-(4-Methylphenyl)-1-oxopropan-2-yl 2-methylquinoline-4-carboxylate
CAS 355432-90-5C21H19NO3
2-Phenoxy-N-(4-phenylmethoxyphenyl)acetamide
CAS 303992-65-6C21H19NO3
2-Hydroxy-N-(4-methoxyphenyl)-2,2-diphenylacetamide
CAS 20594-45-0C21H19NO3
N-(2,3-Dimethylphenyl)-2-oxo-8-(prop-2-en-1-yl)-2H-chromene-3-carboxamide
CAS 325810-63-7C21H19NO3
![17-(2-Methoxyethyl)-17-azapentacyclo[6.6.5.0^{2,7}.0^{9,14}.0^{15,19}]nonadeca-2,4,6,9(14),10,12-hexaene-16,18-dione chemical structure, C21H19NO3, CAS 328016-09-7](/s/GAGNNYWHKIBVEU-UHFFFAOYSA-N.svg)
17-(2-Methoxyethyl)-17-azapentacyclo[6.6.5.0^{2,7}.0^{9,14}.0^{15,19}]nonadeca-2,4,6,9(14),10,12-hexaene-16,18-dione
CAS 328016-09-7C21H19NO3
![3-Methoxy-N-[4-(3-methylphenoxy)phenyl]benzamide chemical structure, C21H19NO3, CAS 432538-36-8](/s/ZBGQWEMIHIEGKY-UHFFFAOYSA-N.svg)
3-Methoxy-N-[4-(3-methylphenoxy)phenyl]benzamide
CAS 432538-36-8C21H19NO3
- (5Z)-5-[(2E)-1-Hydroxy-3-phenylprop-2-enylidene]-2-methyl-2,3,5,6-tetrahydro-4H-2,6-methano-1,3-benzoxazocin-4-one899904-19-9C21H19NO3
- 3,5-Dimethoxy-N-(2-phenylphenyl)benzamide862678-75-9C21H19NO3
- (E)-3-(3,4-Dimethoxyphenyl)-1-(4-pyrrol-1-ylphenyl)prop-2-en-1-one1393645-69-6C21H19NO3
- 2-(2,4-Dimethylphenyl)-2-oxoethyl 2-methylquinoline-4-carboxylate880429-19-6C21H19NO3
- Pargyropyranone72543-53-4C21H19NO3
- 2-(3,4-Dihydroquinolin-1(2H)-ylcarbonyl)-6,8-dimethyl-4H-chromen-4-one919033-77-5C21H19NO3
- 4 suppliersDBCO-C6-acid1425485-72-8C21H19NO3
- Microtubule inhibitor 12305668-80-6C21H19NO3
- 2-((E)-{[4-(Benzyloxy)phenyl]imino}methyl)-6-methoxyphenol2157464-48-5C21H19NO3
- GR 54374X135248-55-4C21H19NO3
- 3 suppliers4-(Bis(4-methoxyphenyl)amino)benzaldehyde89115-20-8C21H19NO3
- 4-({[4-(Benzyloxy)phenyl]methyl}amino)benzoic acid61439-56-3C21H19NO3
- N-[(2,3-Dihydro-1,4-benzodioxin-2-yl)methyl]-2-(naphthalen-2-yl)acetamide1031050-36-8C21H19NO3
- 2-[N-(2,4-Dimethylphenyl)carbamoyl]-3-naphthyl acetate4569-00-0C21H19NO3
- 2-Methoxy-6-((2-methyl-[1,1'-biphenyl]-3-yl)methoxy)nicotinaldehyde1675205-30-7C21H19NO3
- 8-Allyl-N-(4-ethylphenyl)-2-oxo-2H-chromene-3-carboxamide313268-05-2C21H19NO3
- Methyl 4-([1,1'-biphenyl]-2-carbonyl)-2,5-dimethyl-1H-pyrrole-3-carboxylate120934-97-6C21H19NO3
- Ethyl 4-(1H-naphtho[1,2-e][1,3]oxazin-2(3H)-yl)benzoate35141-67-4C21H19NO3
- 8-Allyl-N-(2-ethylphenyl)-2-oxo-2H-chromene-3-carboxamide312734-33-1C21H19NO3
- 4-(2,5-Dimethoxyphenyl)-3,4-dihydrobenzo[h]quinolin-2(1H)-one5613-92-3C21H19NO3
- 3,4-Bis(benzyloxy)benzaldehyde oxime31123-05-4C21H19NO3
- Ethyl 3-[(naphthalen-1-ylacetyl)amino]benzoate723757-02-6C21H19NO3
- 4-(3-Ethoxy-4-hydroxyphenyl)-3,4-dihydrobenzo[h]quinolin-2(1H)-one326903-20-2C21H19NO3
- N-(2,5-Dimethoxyphenyl)-4-biphenylcarboxamide187324-54-5C21H19NO3
- 1-Oxo-1-phenylpropan-2-yl 2,6-dimethylquinoline-4-carboxylate6625-61-2C21H19NO3
- 3,4-Dimethoxy-N-(2-phenylphenyl)benzamide1522-75-4C21H19NO3
- N-(2,4-Dimethylphenyl)-2-oxo-8-(prop-2-en-1-yl)-2H-chromene-3-carboxamide325779-95-1C21H19NO3
- N-(2,3-Dihydro-1,4-benzodioxin-3-ylmethyl)-2-naphthalen-1-ylacetamide428842-62-0C21H19NO3
- 4-(2,4-Dimethoxyphenyl)-3,4-dihydrobenzo[h]quinolin-2(1H)-one64257-26-7C21H19NO3
- 5H-1,3-Dioxolo(4,5-b)carbazole, 6,7,8,9-tetrahydro-5-(p-toluoyl)-50332-25-7C21H19NO3
- N-(2,4-Dimethoxyphenyl)[1,1'-biphenyl]-4-carboxamide349407-11-0C21H19NO3
- N-(3-Methoxyphenyl)-2-(4-phenylphenoxy)acetamide5852-14-2C21H19NO3
- N-(1,2-Dihydroacenaphthylen-5-yl)-3,5-dimethoxybenzamide383149-10-8C21H19NO3
- Phenacyl 4-(2,5-dimethylpyrrol-1-yl)benzoate355153-98-9C21H19NO3
- 2-Ethoxy-6-{(E)-[(4-phenoxyphenyl)imino]methyl}phenol388102-98-5C21H19NO3
- 4-Ethoxy-N-(4-phenoxyphenyl)benzamide309951-78-8C21H19NO3
- 1-(2,4-Dimethoxyphenyl)-1,4-dihydrobenzo[f]quinolin-3(2H)-one64257-39-2C21H19NO3
- 1-(4-Isopropylphenyl)-2-methyl-1,2-dihydrochromeno[2,3-c]pyrrole-3,9-dione850719-53-8C21H19NO3
- 2-[[(2Z)-2-[(4-tert-Butylphenyl)methylidene]-3-oxo-1-benzofuran-6-yl]oxy]acetonitrile622797-97-1C21H19NO3
- 2-Oxo-2-phenylethyl 2-propylquinoline-4-carboxylate941233-45-0C21H19NO3
- Ethyl 4-(2-naphthylacetylamino)benzoate111200-09-0C21H19NO3
- N-(1,2-Dihydroacenaphthylen-5-yl)-3,4-dimethoxybenzamide329903-25-5C21H19NO3
- 2-(4-Methoxyphenyl)-N-(4-phenoxyphenyl)acetamide315676-22-3C21H19NO3
- 2-(4-Phenoxyphenyl)hexahydro-1H-4,7-methanoisoindole-1,3(2H)-dione489452-29-1C21H19NO3
- 9-Cyclopropyl-4-methyl-3-phenyl-2H,8H,9H,10H-chromeno[8,7-e][1,3]oxazin-2-one946384-19-6C21H19NO3
- 9-Cyclopropyl-2-methyl-3-phenyl-4H,8H,9H,10H-chromeno[8,7-e][1,3]oxazin-4-one946384-79-8C21H19NO3
- L-Phenylalanine, N-[2-(2-naphthalenyl)acetyl]-934395-57-0C21H19NO3
- 2-{[(4-Acetylphenyl)amino]methylidene}-5-phenylcyclohexane-1,3-dione1024250-49-4C21H19NO3
- 2-(2-Methylphenoxy)-N-(4-phenoxyphenyl)acetamide330837-99-5C21H19NO3
- 2-Hydroxy-N-(3-methoxyphenyl)-2,2-diphenylacetamide41007-74-3C21H19NO3
- 2-(4-Methylphenyl)-2-oxoethyl 2,8-dimethylquinoline-4-carboxylate354772-62-6C21H19NO3
- 2-(3,4-Dimethylphenyl)-2-oxoethyl 2-methylquinoline-4-carboxylate354773-12-9C21H19NO3
- N-(2-Methoxybenzyl)-2-phenoxybenzamide349399-88-8C21H19NO3
- 6'-Hydroxy-12'-methylspiro[cyclopentane-1,3'-pyrano[2,3-c]acridine]-7'-one908828-90-0C21H19NO3
- 3-[2-(Piperidinocarbonyl)phenyl]-1H-isochromen-1-one951928-37-3C21H19NO3
- 4-(4-Cbz-Aminopheny)-2-methylphenol1261942-85-1C21H19NO3
- 2-Amino-4,5-dibenzyloxy-benzaldehyde89004-63-7C21H19NO3
- 2-(4-Methylphenoxy)-N-(4-phenoxyphenyl)acetamide328026-68-2C21H19NO3
- 2-(3-Methylphenoxy)-N-(4-phenoxyphenyl)acetamide327070-86-0C21H19NO3
- N-[4-(Benzyloxy)phenyl]-4-methoxybenzamide301157-97-1C21H19NO3
- 2-Ethoxy-N-(4-phenoxyphenyl)benzamide545367-79-1C21H19NO3
- N-(4-Methoxyphenyl)-2-(2-phenylphenoxy)acetamide446040-11-5C21H19NO3
- 2-(2-Naphthyl)-2-oxoethyl 4-(dimethylamino)benzoate524043-63-8C21H19NO3
- N-(3,4-Dimethoxyphenyl)[1,1'-biphenyl]-4-carboxamide449177-42-8C21H19NO3
- 6,7-Dimethoxy-4-naphthalen-1-yl-3,4-dihydro-1H-quinolin-2-one725687-09-2C21H19NO3
- 2,6-Dimethoxy-N-(2-phenylphenyl)benzamide21875-35-4C21H19NO3
- 3-Hydroxy-3-[(E)-2-oxo-4-phenylbut-3-enyl]-1-prop-2-enylindol-2-one434294-90-3C21H19NO3
- 4-Quinolinecarboxylic acid, 2-(1-methylethyl)-, 2-oxo-2-phenylethyl ester879053-43-7C21H19NO3
- N-(2,4-Dimethoxyphenyl)-3-(1-naphthyl)acrylamide329779-55-7C21H19NO3
- 3,4-Bis(benzyloxy)benzamide95946-91-1C21H19NO3
- 4-(2-(3,4-Dihydroisoquinolin-2(1H)-yl)-2-oxoethyl)-7-methyl-2H-chromen-2-one919758-03-5C21H19NO3
- 3-(5-Formyl-6-hydroxy-2-naphthalenyl)-N-(1-methylethyl)benzamide1093119-49-3C21H19NO3
- Cyclohepta(b)-1,3-dioxolo(4,5-f)indole, 5,6,7,8,9,10-hexahydro-5-benzoyl-50332-35-9C21H19NO3
- Ethyl 2-(isoquinolin-1-ylmethyl)-3-oxo-3-phenyl-propanoate87365-05-7C21H19NO3
- 2,3-Dimethoxy-N-(2-phenylphenyl)benzamide1522-57-2C21H19NO3
- N-(2-Methoxy-5-methylphenyl)-2-phenoxybenzamide333442-14-1C21H19NO3
Frequently asked questions
What is the molar mass of C21H19NO3?
The molar mass of C21H19NO3 is 333.39 g/mol, calculated from standard atomic weights for 21 carbon atoms, 19 hydrogen atoms, 1 nitrogen atom and 3 oxygen atoms. The monoisotopic mass is 333.1365 Da.
How many compounds have the formula C21H19NO3?
CompoundList lists 197 compounds with the molecular formula C21H19NO3, including Acetyl-DL-phenylalanine beta-naphthyl ester, 4-{[(3-Phenoxybenzyl)amino]methyl}benzoic acid, 3-Hydroxy-1-methyl-3-[(3E,5E)-2-oxo-6-phenylhexa-3,5-dienyl]indol-2-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 C21H19NO3?
C21H19NO3 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.