Molecular formula
C16H21ClN4O2
56 compounds have this formula on CompoundList.
- Molar mass
- 336.82g/mol
- Monoisotopic mass
- 336.1353Da
- Atoms
- 44
- Elements
- 5
- Rings plus double bonds
- 8
The formula C16H21ClN4O2 describes a molecule made of 16 carbon atoms, 21 hydrogen atoms, 1 chlorine atom, 4 nitrogen atoms 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 × 1657.06%12.011 × 16 = 192.176 g/mol
- H Hydrogen × 216.28%1.008 × 21 = 21.168 g/mol
- Cl Chlorine × 110.52%35.45 × 1 = 35.450 g/mol
- N Nitrogen × 416.63%14.007 × 4 = 56.028 g/mol
- O Oxygen × 29.50%15.999 × 2 = 31.998 g/mol
Look up another formula
Compounds with the formula C16H21ClN4O2
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 56 of 56 compounds
Itasetron hydrochloride
CAS 127618-28-4C16H21ClN4O2
![N-Cyclopropyl-3-[5-[(propylamino)methyl]-1,2,4-oxadiazol-3-yl]-benzamide hydrochloride (1:1) chemical structure, C16H21ClN4O2, CAS 1185299-52-8](/s/WAYICYYEFBAUIT-UHFFFAOYSA-N.svg)
N-Cyclopropyl-3-[5-[(propylamino)methyl]-1,2,4-oxadiazol-3-yl]-benzamide hydrochloride (1:1)
CAS 1185299-52-8C16H21ClN4O2
Itasetron HCl
C16H21ClN4O2
![3-{5-[(4-Ethylpiperazin-1-yl)methyl]-1,2,4-oxadiazol-3-yl}benzaldehyde hydrochloride chemical structure, C16H21ClN4O2, CAS 1184983-03-6](/s/SUVQDHOVDWFAQW-UHFFFAOYSA-N.svg)
3-{5-[(4-Ethylpiperazin-1-yl)methyl]-1,2,4-oxadiazol-3-yl}benzaldehyde hydrochloride
CAS 1184983-03-6C16H21ClN4O2
![tert-Butyl 3-(7-chloropyrazolo[1,5-a]pyrimidin-5-yl)piperidine-1-carboxylate chemical structure, C16H21ClN4O2, CAS 877173-81-4](/s/BGZBYRDJBDYNKD-UHFFFAOYSA-N.svg)
tert-Butyl 3-(7-chloropyrazolo[1,5-a]pyrimidin-5-yl)piperidine-1-carboxylate
CAS 877173-81-4C16H21ClN4O2
![tert-Butyl 4-(4-chloro-7H-pyrrolo[2,3-d]pyrimidin-7-yl)piperidine-1-carboxylate chemical structure, C16H21ClN4O2, CAS 717900-74-8](/s/UYNZSZPEJZZWAH-UHFFFAOYSA-N.svg)
tert-Butyl 4-(4-chloro-7H-pyrrolo[2,3-d]pyrimidin-7-yl)piperidine-1-carboxylate
CAS 717900-74-8C16H21ClN4O2
![tert-Butyl 4-(5-chloro-1H-pyrrolo[2,3-b]pyridin-4-yl)piperazine-1-carboxylate chemical structure, C16H21ClN4O2, CAS 1020056-91-0](/s/FEWUCEHHFRLIFW-UHFFFAOYSA-N.svg)
tert-Butyl 4-(5-chloro-1H-pyrrolo[2,3-b]pyridin-4-yl)piperazine-1-carboxylate
CAS 1020056-91-0C16H21ClN4O2
![4-(3-Chlorophenyl)-N-[2-(cyclopropylamino)-2-oxoethyl]piperazine-1-carboxamide chemical structure, C16H21ClN4O2, CAS 1324077-10-2](/s/RWLSLNUDDFLLFA-UHFFFAOYSA-N.svg)
4-(3-Chlorophenyl)-N-[2-(cyclopropylamino)-2-oxoethyl]piperazine-1-carboxamide
CAS 1324077-10-2C16H21ClN4O2
(2-Methoxyphenyl)(4-(1-methyl-1H-imidazol-2-yl)piperazin-1-yl)methanone hydrochloride
CAS 1323601-93-9C16H21ClN4O2
![tert-Butyl 4-(7-chloropyrazolo[1,5-a]pyrimidin-5-yl)piperidine-1-carboxylate chemical structure, C16H21ClN4O2, CAS 1251733-41-1](/s/RVLGHMLRQLLCPE-UHFFFAOYSA-N.svg)
tert-Butyl 4-(7-chloropyrazolo[1,5-a]pyrimidin-5-yl)piperidine-1-carboxylate
CAS 1251733-41-1C16H21ClN4O2
![4-[[(4-Chlorophenyl)amino]carbonyl]-N-2-propen-1-yl-1-piperazineacetamide chemical structure, C16H21ClN4O2, CAS 930889-26-2](/s/JNXWLHPIJXLWDC-UHFFFAOYSA-N.svg)
4-[[(4-Chlorophenyl)amino]carbonyl]-N-2-propen-1-yl-1-piperazineacetamide
CAS 930889-26-2C16H21ClN4O2
(4-Methoxyphenyl)(4-(1-methyl-1H-imidazol-2-yl)piperazin-1-yl)methanone hydrochloride
CAS 1185006-09-0C16H21ClN4O2
1-(4-(1-Methyl-1H-imidazol-2-yl)piperazin-1-yl)-2-phenoxyethanone hydrochloride
CAS 1189927-82-9C16H21ClN4O2
(3-Methoxyphenyl)(4-(1-methyl-1H-imidazol-2-yl)piperazin-1-yl)methanone hydrochloride
CAS 1331143-57-7C16H21ClN4O2
![2-[5-Chloro-2-[4-(hydroxymethyl)piperidin-1-yl]anilino]-N-(cyanomethyl)acetamide chemical structure, C16H21ClN4O2, CAS 1465334-89-7](/s/JJHWITGSMJQJGP-UHFFFAOYSA-N.svg)
2-[5-Chloro-2-[4-(hydroxymethyl)piperidin-1-yl]anilino]-N-(cyanomethyl)acetamide
CAS 1465334-89-7C16H21ClN4O2
![tert-Butyl 4-(5-chloro-1H-pyrrolo[3,2-b]pyridin-3-yl)piperazine-1-carboxylate chemical structure, C16H21ClN4O2, CAS 1116136-67-4](/s/QWTUYTMSKMTSSQ-UHFFFAOYSA-N.svg)
tert-Butyl 4-(5-chloro-1H-pyrrolo[3,2-b]pyridin-3-yl)piperazine-1-carboxylate
CAS 1116136-67-4C16H21ClN4O2
![3-tert-Butyl-1-[[3-(4-chlorophenyl)-1,2,4-oxadiazol-5-yl]methyl]-1-ethylurea chemical structure, C16H21ClN4O2, CAS 896661-20-4](/s/MWWHCCLFYRATLD-UHFFFAOYSA-N.svg)
3-tert-Butyl-1-[[3-(4-chlorophenyl)-1,2,4-oxadiazol-5-yl]methyl]-1-ethylurea
CAS 896661-20-4C16H21ClN4O2
![2-{4-[N-(3-Chlorophenyl)carbamoyl]piperazinyl}-N-cyclopropylacetamide chemical structure, C16H21ClN4O2, CAS 923128-96-5](/s/HNASEBFWVZYCDO-UHFFFAOYSA-N.svg)
2-{4-[N-(3-Chlorophenyl)carbamoyl]piperazinyl}-N-cyclopropylacetamide
CAS 923128-96-5C16H21ClN4O2
![N-[1-(4-Chlorophenyl)-5-oxopyrrolidin-3-yl]-4-methylpiperazine-1-carboxamide chemical structure, C16H21ClN4O2, CAS 894023-63-3](/s/IOTXYZXKSJVWDN-UHFFFAOYSA-N.svg)
N-[1-(4-Chlorophenyl)-5-oxopyrrolidin-3-yl]-4-methylpiperazine-1-carboxamide
CAS 894023-63-3C16H21ClN4O2
6,7-Dimethoxy-N~2~,N~2~-di(prop-2-en-1-yl)quinazoline-2,4-diamine--hydrogen chloride (1/1)
CAS 7460-37-9C16H21ClN4O2
tert-Butyl 4-(3-amino-2-chloro-5-cyanophenyl)piperazine-1-carboxylate
CAS 1541253-76-2C16H21ClN4O2
![tert-Butyl 4-(4-chloro-7H-pyrrolo[2,3-d]pyrimidin-6-yl)piperidine-1-carboxylate chemical structure, C16H21ClN4O2, CAS 1628685-83-5](/s/ANHQVECQJOUJCH-UHFFFAOYSA-N.svg)
tert-Butyl 4-(4-chloro-7H-pyrrolo[2,3-d]pyrimidin-6-yl)piperidine-1-carboxylate
CAS 1628685-83-5C16H21ClN4O2
![tert-Butyl 3-(7-chloropyrazolo[1,5-A]pyrimidin-2-yl)piperidine-1-carboxylate chemical structure, C16H21ClN4O2, CAS 1228630-91-8](/s/VMEGLTZXWMGDTR-UHFFFAOYSA-N.svg)
tert-Butyl 3-(7-chloropyrazolo[1,5-A]pyrimidin-2-yl)piperidine-1-carboxylate
CAS 1228630-91-8C16H21ClN4O2
![5-Methyl-1-[2-(propan-2-yl)-1,2,3,4-tetrahydroisoquinolin-5-yl]-1H-1,2,3-triazole-4-carboxylic acid hydrochloride chemical structure, C16H21ClN4O2, CAS 1311314-14-3](/s/WJQAMQHQIYOGFC-UHFFFAOYSA-N.svg)
5-Methyl-1-[2-(propan-2-yl)-1,2,3,4-tetrahydroisoquinolin-5-yl]-1H-1,2,3-triazole-4-carboxylic acid hydrochloride
CAS 1311314-14-3C16H21ClN4O2
- tert-Butyl 4-(7-chloro-1H-pyrrolo[3,2-b]pyridin-3-yl)piperazine-1-carboxylate1116136-73-2C16H21ClN4O2
- 1-(1-(1-Aminocyclopropanecarbonyl)piperidin-4-yl)-1H-benzo[d]imidazol-2(3H)-one hydrochloride1593647-54-1C16H21ClN4O2
- 1-(1-(Azetidine-3-carbonyl)piperidin-4-yl)-1H-benzo[d]imidazol-2(3H)-one hydrochloride1826294-84-1C16H21ClN4O2
- Ethyl 3-(1-(6-chloro-4-(isopropylamino)pyridin-3-yl)-1H-pyrazol-4-yl)propanoate2058036-91-0C16H21ClN4O2
- 1-[1-(2-Chloro-5-methylpyridine-3-carbonyl)piperidin-3-yl]piperazin-2-one2361730-97-2C16H21ClN4O2
- 3-{4-[(5-Chloropyrimidin-2-yl)oxy]piperidin-1-yl}-1-cyclopropylpyrrolidin-2-one2415453-10-8C16H21ClN4O2
- 1-{1-[3-(2-Chloropyridin-4-yl)prop-2-enoyl]piperidin-4-yl}-3,3-dimethylurea2307515-01-9C16H21ClN4O2
- 1-[1-(5-Chloro-1,3-benzoxazol-2-yl)piperidin-4-yl]-1,3,3-trimethylurea2877640-10-1C16H21ClN4O2
- 1-[1-(6-Chloro-1,3-benzoxazol-2-yl)piperidin-4-yl]-1,3,3-trimethylurea2877711-06-1C16H21ClN4O2
- tert-Butyl 4-(6-chloro-1H-1,2,3-benzotriazol-1-yl)piperidine-1-carboxylate830331-24-3C16H21ClN4O2
- tert-Butyl 4-(5-chloro-1H-1,2,3-benzotriazol-1-yl)piperidine-1-carboxylate830331-25-4C16H21ClN4O2
- (S)-tert-Butyl 3-(2-(chloromethyl)-3H-imidazo[4,5-b]pyridin-3-yl)pyrrolidine-1-carboxylate1421021-17-1C16H21ClN4O2
- (R)-tert-Butyl 3-(2-(chloromethyl)-3H-imidazo[4,5-b]pyridin-3-yl)pyrrolidine-1-carboxylate1421020-40-7C16H21ClN4O2
- tert-Butyl 3-(2-(chloromethyl)-3H-imidazo[4,5-b]pyridin-3-yl)pyrrolidine-1-carboxylate1420997-89-2C16H21ClN4O2
- tert-Butyl N-[2-amino-3-(4-chlorocinnolin-3-yl)propyl]carbamate2228668-78-6C16H21ClN4O2
- tert-Butyl N-[1-amino-3-(4-chlorocinnolin-3-yl)propan-2-yl]carbamate2228424-97-1C16H21ClN4O2
- tert-Butyl 2-{6-chloroimidazo[1,2-a]pyridin-2-yl}piperazine-1-carboxylate2228230-72-4C16H21ClN4O2
- tert-Butyl 3-{6-chloroimidazo[1,2-a]pyridin-2-yl}piperazine-1-carboxylate2229555-62-6C16H21ClN4O2
- tert-Butyl 3-[(6-chloro-1H-1,2,3-benzotriazol-1-yl)methyl]pyrrolidine-1-carboxylate2287273-26-9C16H21ClN4O2
- tert-Butyl 3-[(5-chloro-1H-1,2,3-benzotriazol-1-yl)methyl]pyrrolidine-1-carboxylate2287288-94-0C16H21ClN4O2
- tert-Butyl 3-(7-chloro-1H-1,2,3-benzotriazol-1-yl)piperidine-1-carboxylate2287318-93-6C16H21ClN4O2
- tert-Butyl 4-(7-chloro-1H-1,2,3-benzotriazol-1-yl)piperidine-1-carboxylate2287280-40-2C16H21ClN4O2
- tert-Butyl 2-[(7-chloro-1H-1,2,3-benzotriazol-1-yl)methyl]pyrrolidine-1-carboxylate2287333-58-6C16H21ClN4O2
- tert-Butyl 2-[(6-chloro-1H-1,2,3-benzotriazol-1-yl)methyl]pyrrolidine-1-carboxylate2287270-73-7C16H21ClN4O2
- tert-Butyl 3-[(7-chloro-1H-1,2,3-benzotriazol-1-yl)methyl]pyrrolidine-1-carboxylate2287339-93-7C16H21ClN4O2
- tert-Butyl 3-(6-chloro-1H-1,2,3-benzotriazol-1-yl)piperidine-1-carboxylate2287343-26-2C16H21ClN4O2
- tert-Butyl 3-(5-chloro-1H-1,2,3-benzotriazol-1-yl)piperidine-1-carboxylate2287280-37-7C16H21ClN4O2
- tert-Butyl 2-[(5-chloro-1H-1,2,3-benzotriazol-1-yl)methyl]pyrrolidine-1-carboxylate2287310-68-1C16H21ClN4O2
- tert-Butyl 4-(3-chloro-6-cyanopyridin-2-yl)-3-methylpiperazine-1-carboxylate2138210-27-0C16H21ClN4O2
- tert-Butyl N-[3-amino-2-(4-chlorocinnolin-3-yl)propyl]carbamate2229006-14-6C16H21ClN4O2
- tert-Butyl 4-((6-chloro-4-cyanopyridin-2-yl)amino)piperidine-1-carboxylate3078447-97-6C16H21ClN4O2
- 5-Chloro-1-(1-(2-(dimethylamino)acetyl)piperidin-4-yl)-1H-benzo[d]imidazol-2(3H)-one2325542-05-8C16H21ClN4O2
Frequently asked questions
What is the molar mass of C16H21ClN4O2?
The molar mass of C16H21ClN4O2 is 336.82 g/mol, calculated from standard atomic weights for 16 carbon atoms, 21 hydrogen atoms, 1 chlorine atom, 4 nitrogen atoms and 2 oxygen atoms. The monoisotopic mass is 336.1353 Da.
How many compounds have the formula C16H21ClN4O2?
CompoundList lists 56 compounds with the molecular formula C16H21ClN4O2, including Itasetron hydrochloride, N-Cyclopropyl-3-[5-[(propylamino)methyl]-1,2,4-oxadiazol-3-yl]-benzamide hydrochloride (1:1), Itasetron HCl. 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 C16H21ClN4O2?
C16H21ClN4O2 has a degree of unsaturation of 8. 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.