Molecular formula
C18H21NO2
611 compounds have this formula on CompoundList.
- Molar mass
- 283.37g/mol
- Monoisotopic mass
- 283.1572Da
- Atoms
- 42
- Elements
- 4
- Rings plus double bonds
- 9
The formula C18H21NO2 describes a molecule made of 18 carbon atoms, 21 hydrogen atoms, 1 nitrogen atom and 2 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 × 1876.30%12.011 × 18 = 216.198 g/mol
- H Hydrogen × 217.47%1.008 × 21 = 21.168 g/mol
- N Nitrogen × 14.94%14.007 × 1 = 14.007 g/mol
- O Oxygen × 211.29%15.999 × 2 = 31.998 g/mol
Look up another formula
Compounds with the formula C18H21NO2
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 201 to 300 of 611 compounds
N-Ethyl-2-(4-ethylphenoxy)-N-phenylacetamide
CAS 514823-67-7C18H21NO2
2-(2,5-Dimethylphenoxy)-N-(4-methylbenzyl)acetamide
CAS 431999-00-7C18H21NO2
2-(2,5-Dimethylphenoxy)-N-(2-phenylethyl)acetamide
CAS 315713-12-3C18H21NO2
2-(Benzyloxy)-4-(diethylamino)benzaldehyde
CAS 93109-27-4C18H21NO2
![{4-[(4-Allyl-2-methoxyphenoxy)methyl]phenyl}methanamine chemical structure, C18H21NO2, CAS 866039-46-5](/s/MRWJSAAPNWRBHV-UHFFFAOYSA-N.svg)
{4-[(4-Allyl-2-methoxyphenoxy)methyl]phenyl}methanamine
CAS 866039-46-5C18H21NO2
N-Benzyl-2-(4-ethylphenoxy)-N-methylacetamide
CAS 497088-78-5C18H21NO2
N-(2,5-Dimethylphenyl)-4-propan-2-yloxybenzamide
CAS 880592-65-4C18H21NO2
N-(1-(2,5-Dimethoxyphenyl)but-3-en-1-yl)aniline
CAS 847269-06-1C18H21NO2
N-Benzyl-2-(2,3-dimethylphenoxy)propanamide
CAS 690992-18-8C18H21NO2
![4-(2,3-Dihydroindole-1-carbonyl)-2,2-dimethylbicyclo[2.2.1]heptan-3-one chemical structure, C18H21NO2, CAS 622359-22-2](/s/HRLTZEDTTMRRER-UHFFFAOYSA-N.svg)
4-(2,3-Dihydroindole-1-carbonyl)-2,2-dimethylbicyclo[2.2.1]heptan-3-one
CAS 622359-22-2C18H21NO2
2-(4-Methylphenoxy)-N-(2-phenylethyl)propanamide
CAS 723260-19-3C18H21NO2
3-(Benzyloxy)-N,N-diethylbenzamide
CAS 84476-40-4C18H21NO2
2-(N-Ethyl-m-toluidino)ethyl benzoate
CAS 41284-39-3C18H21NO2
![1-Propanone, 3-(dimethylamino)-1-[4-(phenylmethoxy)phenyl]- chemical structure, C18H21NO2, CAS 51345-76-7](/s/YILRQOFYISHQCQ-UHFFFAOYSA-N.svg)
1-Propanone, 3-(dimethylamino)-1-[4-(phenylmethoxy)phenyl]-
CAS 51345-76-7C18H21NO2
Benzenebutanamide, 2-hydroxy-N,N-dimethyl-gamma-phenyl-
CAS 129841-21-0C18H21NO2
Benzeneacetamide, N-(2-hydroxyphenyl)-alpha-phenyl-, (S)-
CAS 130273-50-6C18H21NO2
3-(Furan-2-yl)-3-(4-methylphenyl)-1-pyrrolidin-1-ylpropan-1-one
CAS 378773-08-1C18H21NO2
3-Ethoxy-N-(1-phenylpropyl)benzamide
CAS 445000-72-6C18H21NO2
2-(4-sec-Butylphenoxy)-N-phenylacetamide
CAS 737795-08-3C18H21NO2
![1-(1,3-Benzodioxol-5-yl)-N-[4-(propan-2-yl)benzyl]methanamine chemical structure, C18H21NO2, CAS 880814-65-3](/s/FETXKHAZVOGYIQ-UHFFFAOYSA-N.svg)
1-(1,3-Benzodioxol-5-yl)-N-[4-(propan-2-yl)benzyl]methanamine
CAS 880814-65-3C18H21NO2
![N-[2-(4-Methylphenoxy)ethyl]-3-phenylpropanamide chemical structure, C18H21NO2, CAS 328016-85-9](/s/CLCKGWZMNZZFTA-UHFFFAOYSA-N.svg)
N-[2-(4-Methylphenoxy)ethyl]-3-phenylpropanamide
CAS 328016-85-9C18H21NO2
N-(2,4-Dimethylphenyl)-3-isopropoxybenzamide
CAS 909346-80-1C18H21NO2
Carbamic acid, (diphenylmethyl)-, 1,1-dimethylethyl ester
CAS 21420-61-1C18H21NO2
2-(4-Hexyloxybenzoyl)pyridine
CAS 898780-09-1C18H21NO2
- 2-Methoxy-6-[(5,6,7,8-tetrahydronaphthalen-1-ylamino)methyl]phenol1021028-23-8C18H21NO2
- 4-Methyl-3-(4-pentyloxybenzoyl)pyridine1187168-29-1C18H21NO2
- N-(4-Isopropoxybenzyl)-2-phenylacetamide1071321-76-0C18H21NO2
- 4-Acetyl-2-(4-tert-pentylphenoxy) pyridine1555341-12-2C18H21NO2
- 4-Acetyl-2-(2-tert-butyl-5-methylphenoxy) pyridine1551070-74-6C18H21NO2
- 2-Butanone, 4-dimethylamino-1,1-diphenyl-1-hydroxy-13960-24-2C18H21NO2
- Dibenzofuran, 4-(diethylamino)methyl-3-methoxy-42840-14-2C18H21NO2
- 6,7-Dimethoxy-1-methyl-2-phenyl-1,2,3,4-tetrahydroisoquinoline65492-84-4C18H21NO2
- 2,2-Dimethyl-N-[(3-phenoxyphenyl)methyl]propanamide98992-35-9C18H21NO2
- Ethyl 3-(N-methylanilino)-2-phenylpropanoate22286-88-0C18H21NO2
- Ethyl 3-(benzylamino)-2-phenylpropanoate22319-48-8C18H21NO2
- 2-(3,5-Dimethylphenoxy)-N-(4-ethylphenyl)acetamide303971-81-5C18H21NO2
- 2-(2,6-Dimethylphenoxy)-N-(2,5-dimethylphenyl)acetamide448221-06-5C18H21NO2
- 2-(2,5-Dimethylphenoxy)-N-(3,4-dimethylphenyl)acetamide315712-82-4C18H21NO2
- 2-(2,4-Dimethylphenoxy)-N-(2,3-dimethylphenyl)acetamide438477-23-7C18H21NO2
- 2-(3,5-Dimethylphenoxy)-N-ethyl-N-phenylacetamide692271-02-6C18H21NO2
- 2-(2,6-Dimethylphenoxy)-N-(2,3-dimethylphenyl)acetamide448220-98-2C18H21NO2
- 2-[Benzyl(methyl)amino]ethyl 4-methylbenzoate860607-63-2C18H21NO2
- N-(3-Ethoxypropyl)biphenyl-4-carboxamide524677-04-1C18H21NO2
- N-[4-(Allyloxy)-3-methoxybenzyl]-N-benzylamine774189-01-4C18H21NO2
- N-(2,5-Dimethylphenyl)-4-phenoxybutanamide432500-30-6C18H21NO2
- N-(2,4-Dimethylphenyl)-2-phenoxybutanamide544680-28-6C18H21NO2
- N-Benzyl-2-(2-methylphenoxy)butanamide86455-34-7C18H21NO2
- Benzeneacetic acid, 4-amino-alpha-ethyl-alpha-phenyl-, ethyl ester61706-46-5C18H21NO2
- N-[1-(2,4-Dimethylphenyl)ethyl]-3-methoxybenzamide495386-58-8C18H21NO2
- N-Benzyl-N-isopropyl-2-methoxybenzamide552854-67-8C18H21NO2
- 1-(4-Methoxyphenyl)-2,6,6-trimethyl-4,5,6,7-tetrahydro-1H-indol-4-one163083-10-1C18H21NO2
- 1-(4-Ethylphenyl)-3-(4-methoxyanilino)-1-propanone882749-46-4C18H21NO2
- 2-Methyl-N-[4-(2-methylpropoxy)phenyl]benzamide881089-42-5C18H21NO2
- N-Benzyl-2-(2-methylpropoxy)benzamide882132-11-8C18H21NO2
- 3-Ethoxy-N-(2,4,6-trimethylphenyl)benzamide881752-63-2C18H21NO2
- N-(1-Phenylethyl)-3-propoxybenzamide881763-09-3C18H21NO2
- N-Benzyl-3-(2-methylpropoxy)benzamide909216-71-3C18H21NO2
- 1H-3-Benzazepine, 2,3,4,5-tetrahydro-7,8-dimethoxy-1-phenyl-20569-49-7C18H21NO2
- N-[2-(Benzyloxy)phenyl]pivalamide237748-52-6C18H21NO2
- Biphenyl-4-ylmethyl-carbamic acid t-butyl ester254882-88-7C18H21NO2
- Furo(3,2-c)quinoline, 4-methyl-2-(1-(2-methylpropoxy)ethyl)-88654-60-8C18H21NO2
- 4-(Benzyloxy)-N-butylbenzamide84403-54-3C18H21NO2
- 6,7,8,14-Tetradehydro-3-methoxy-17-methylmorphinan-4-ol85153-90-8C18H21NO2
- N-(2-Isobutoxyphenyl)-2-methylbenzamide149708-22-5C18H21NO2
- [(2S,5R)-4-Benzyl-5-phenylmorpholin-2-yl]methanol943443-04-7C18H21NO2
- 2-Isopropoxy-N-(2-phenylethyl)benzamide884436-58-2C18H21NO2
- N,N-Dimethyl-2,2-diphenyl-4-hydroxybutyramide37743-13-8C18H21NO2
- Ethyl 3-[(diphenylmethyl)amino]propanoate289637-69-0C18H21NO2
- 5-Methoxy-2-(6-methoxy-1,2,3,4-tetrahydronaphthalen-2-yl)phenylamine722519-44-0C18H21NO2
- 3-[4-(Benzyloxy)phenoxy]piperidine946759-24-6C18H21NO2
- N-[2-(4-Hydroxyphenyl)ethyl]benzenebutanamide193220-18-7C18H21NO2
- 6-Methoxy-2-(4-pentylbenzoyl)pyridine1187167-99-2C18H21NO2
- 2-Methyl-5-(4-pentyloxybenzoyl)pyridine1187167-74-3C18H21NO2
- N-(2-Hydroxy-3-phenylpropyl)-2-(m-tolyl)acetamide1351616-11-9C18H21NO2
- 1-Benzyl-4-(2-hydroxyphenyl)piperidin-4-ol474396-94-6C18H21NO2
- 2-[(2,3-Dihydro-1H-inden-5-ylamino)methylene]-5,5-dimethyl-1,3-cyclohexanedione5491-16-7C18H21NO2
- (1Z)-1-(Ethoxymethylene)-4,4,6,8-tetramethyl-4H-pyrrolo[3,2,1-ij]quinolin-2(1H)-one2449094-71-5C18H21NO2
- Acetamide, N-phenethyl-N-(2-phenoxyethyl)-66827-48-3C18H21NO2
- Acetic acid, phenyl-, (2-(dimethylamino)-1-phenyl)ethyl ester66902-59-8C18H21NO2
- Ethylamine, 2-(diphenylmethoxy)-N-(ethoxymethylene)-101418-32-0C18H21NO2
- 2-Butyn-1-ol, 4-(diethylamino)-1-(2-furyl)-1-phenyl-965-73-1C18H21NO2
- N-(3-Butoxyphenyl)-2-methylbenzamide55852-41-0C18H21NO2
- Ethyl N-(2,2-diphenylpropyl)carbamate40691-65-4C18H21NO2
- 2-(2-Methoxyphenyl)-N-(2,4,6-trimethylphenyl)acetamide349145-61-5C18H21NO2
- N-[6-Methyl-2-(methylethyl)phenyl]-2-phenoxyacetamide307539-71-5C18H21NO2
- 2-(2,4-Dimethylphenoxy)-N-(3,4-dimethylphenyl)acetamide438478-07-0C18H21NO2
- 2-[Benzyl(methyl)amino]ethyl 2-methylbenzoate860607-62-1C18H21NO2
- 4-Methyl-1-[(2-naphthyloxy)acetyl]piperidine349644-00-4C18H21NO2
- 2-(4-Methyl-1-piperidinyl)-2-oxoethyl 1-naphthyl ether444076-71-5C18H21NO2
- 2-(2,4-Dimethylphenoxy)-N-(4-ethylphenyl)acetamide423151-73-9C18H21NO2
- N-[4-(Benzyloxy)phenyl]pentanamide448908-67-6C18H21NO2
- N-(3,5-Dimethylphenyl)-4-propoxybenzamide431927-45-6C18H21NO2
- N-[1-(4-Ethoxyphenyl)ethyl]-2-phenylacetamide636997-14-3C18H21NO2
- 2-(4-Methoxyphenyl)-N-(3-phenylpropyl)acetamide426246-47-1C18H21NO2
- N-(3,4-Dimethylphenyl)-2-phenoxybutanamide540528-58-3C18H21NO2
- N-(4-Ethylphenyl)-2-phenoxybutanamide544691-68-1C18H21NO2
- N-(2,6-Dimethylphenyl)-2-phenoxybutanamide545346-88-1C18H21NO2
- N-[1-(4-Methoxyphenyl)ethyl]-2-phenylpropanamide708288-57-7C18H21NO2
- N-(2,4-Dimethylphenyl)-2-(2-methylphenoxy)propanamide723259-71-0C18H21NO2
- N-[2-(4-Methoxyphenyl)ethyl]-3-phenylpropanamide349431-94-3C18H21NO2
Frequently asked questions
What is the molar mass of C18H21NO2?
The molar mass of C18H21NO2 is 283.37 g/mol, calculated from standard atomic weights for 18 carbon atoms, 21 hydrogen atoms, 1 nitrogen atom and 2 oxygen atoms. The monoisotopic mass is 283.1572 Da.
How many compounds have the formula C18H21NO2?
CompoundList lists 611 compounds with the molecular formula C18H21NO2, including N-Ethyl-2-(4-ethylphenoxy)-N-phenylacetamide, 2-(2,5-Dimethylphenoxy)-N-(4-methylbenzyl)acetamide, 2-(2,5-Dimethylphenoxy)-N-(2-phenylethyl)acetamide. 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 C18H21NO2?
C18H21NO2 has a degree of unsaturation of 9. 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.