Molecular formula
C5H9NO
274 compounds have this formula on CompoundList.
- Molar mass
- 99.13g/mol
- Monoisotopic mass
- 108.1249Da
- Atoms
- 16
- Elements
- 4
- Rings plus double bonds
- 2
The formula C5H9NO describes a molecule made of 5 carbon atoms, 9 hydrogen atoms, 1 nitrogen atom and 1 oxygen 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 × 560.58%12.011 × 5 = 60.055 g/mol
- H Hydrogen × 99.15%1.008 × 9 = 9.072 g/mol
- N Nitrogen × 114.13%14.007 × 1 = 14.007 g/mol
- O Oxygen × 116.14%15.999 × 1 = 15.999 g/mol
Look up another formula
Compounds with the formula C5H9NO
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 101 to 200 of 274 compounds
![2-Oxa-1-azabicyclo[2.2.1]heptane chemical structure, C5H9NO, CAS 279-28-7](/s/JHTIYCNAYYKEGT-UHFFFAOYSA-N.svg)
2-Oxa-1-azabicyclo[2.2.1]heptane
CAS 279-28-7C5H9NO
![3-Oxa-6-azabicyclo[3.1.1]heptane chemical structure, C5H9NO, CAS 286390-20-3](/s/BXMGZQQTBBJSPP-UHFFFAOYSA-N.svg)
3-Oxa-6-azabicyclo[3.1.1]heptane
CAS 286390-20-3C5H9NO
2-Methoxypyrroline
CAS 66996-69-8C5H9NO
![Exo-3-azabicyclo[3.1.0]hexan-6-ol chemical structure, C5H9NO, CAS 862713-83-5](/s/RZLJAMZKKBGBBS-NGQZWQHPSA-N.svg)
Exo-3-azabicyclo[3.1.0]hexan-6-ol
CAS 862713-83-5C5H9NO
n-Methyl-n-prop-2-en-1-ylformamide
CAS 2687-90-3C5H9NO
Pyrrolidine-3-carbaldehyde
CAS 848189-22-0C5H9NO
2-Ethoxypropanenitrile
CAS 14631-45-9C5H9NO
Pentanenitrile, 3-hydroxy-, (3R)-
CAS 198561-27-2C5H9NO
N-Cyclopropyl-N-methylformamide
CAS 1403483-62-4C5H9NO
N-Cyclopropylacetamide
CAS 29512-07-0C5H9NO
cis-2-Pentenoic acid amide
CAS 1065225-90-2C5H9NO
4-Hydroxypentanenitrile
CAS 51229-88-0C5H9NO
2-Amino-1-cyclopropylethan-1-one
CAS 725205-48-1C5H9NO
2-Methoxybutanenitrile
CAS 253317-26-9C5H9NO
(1r,3r)-3-Aminocyclobutane-1-carbaldehyde
CAS 2659227-50-4C5H9NO
1-Methyl-2-pyrrolidinone-d3
CAS 933-86-8C5H9NO
Cyanic acid, isobutyl ester
CAS 1768-25-8C5H9NO
3-Methyl-3-butenamide
CAS 18938-03-9C5H9NO
(R)-2-Hydroxy-3-methylbutanenitrile
CAS 10021-64-4C5H9NO
2H-Pyrrole, 3,4-dihydro-5-methyl-, 1-oxide
CAS 6931-10-8C5H9NO
1,2,3,6-Tetrahydropyridin-3-ol
CAS 84794-16-1C5H9NO
![2-Oxa-6-azabicyclo[3.2.0]heptane chemical structure, C5H9NO, CAS 3927-45-5](/s/XXYHSNJHVRBNDW-UHFFFAOYSA-N.svg)
2-Oxa-6-azabicyclo[3.2.0]heptane
CAS 3927-45-5C5H9NO
2-(Azetidin-1-yl)acetaldehyde
CAS 1553230-90-2C5H9NO
![3-Oxa-6-azabicyclo[3.2.0]heptane chemical structure, C5H9NO, CAS 38654-15-8](/s/NWPXQVBUHZHSDK-UHFFFAOYSA-N.svg)
3-Oxa-6-azabicyclo[3.2.0]heptane
CAS 38654-15-8C5H9NO
- Oxazole, 4,5-dihydro-2,5-dimethyl-6159-22-4C5H9NO
- Aziridine, 1-acetyl-2-methyl-13416-47-2C5H9NO
- 4-(Methylamino)but-2-YN-1-ol118264-47-4C5H9NO
- 2-Hydroxy-2-methylbutyronitrile, (S)-174849-22-0C5H9NO
- 3-Oxabicyclo[3.1.0]hexan-6-amine724701-02-4C5H9NO
- 3-Pentenamide, (E)-100791-94-4C5H9NO
- 1-(Azetidin-3-yl)ethanone1309208-82-9C5H9NO
- 2-Oxabicyclo[2.1.1]hexan-4-amine2260931-48-2C5H9NO
- Butyl cyanate1768-24-7C5H9NO
- Pivalonitrile N-oxide27143-81-3C5H9NO
- sec-Butyl cyanate1873-13-8C5H9NO
- 3-Amino-2-ethylacrolein30989-82-3C5H9NO
- (Z)-N-(Prop-1-en-1-yl)acetamide5202-79-9C5H9NO
- (3E)-Pent-3-enamide133099-99-7C5H9NO
- 4H-1,3-Oxazine, 5,6-dihydro-2-methyl-10431-93-3C5H9NO
- 4H-1,2-Oxazine, 5,6-dihydro-3-methyl-39703-76-9C5H9NO
- 4-Methoxybut-2-yn-1-amine75166-23-3C5H9NO
- N-Methylbut-3-enamide73083-41-7C5H9NO
- N-(2-Methylprop-1-en-1-yl)formamide77488-77-8C5H9NO
- Methyl cyclopropanecarboximidate746556-17-2C5H9NO
- 2-Methyl-1-oxo-3,4-dihydro-2H-1lambda~5~-pyrrole146679-52-9C5H9NO
- 2-(Methylimino)-3-butanone69081-06-7C5H9NO
- 1,2,3,4-Tetrahydropyridin-4-ol903094-26-8C5H9NO
- 3-Ethenylazetidin-3-ol1464159-28-1C5H9NO
- 3-Aminobicyclo[1.1.1]pentan-1-ol1936222-91-1C5H9NO
- (E)-(Cyclopropylmethylidene)(methyl)oxidoazanium65194-05-0C5H9NO
- Pentanenitrile, 3-hydroxy-, (3S)-199177-61-2C5H9NO
- 1,1-Dimethylethyl cyanate25246-64-4C5H9NO
- 4-Ethyl-4,5-dihydro-1,3-oxazole42770-25-2C5H9NO
- 1-(1-Aminocyclopropyl)ethan-1-one1174281-63-0C5H9NO
- 4-Aminocyclopent-2-en-1-ol220354-28-9C5H9NO
- 3-Azabicyclo[3.1.0]hexan-6-ol1427358-65-3C5H9NO
- 1-Aminopent-4-yn-2-ol57702-72-4C5H9NO
- 2,2-Dimethyl-2,3-dihydro-1,3-oxazole88841-34-3C5H9NO
- 1-Methylazetidine-3-carbaldehyde1505923-13-6C5H9NO
- 2H-1,2-Oxazine, 3,6-dihydro-6-methyl-63842-71-7C5H9NO
- 1-Ethoxy-2-isocyanoethane113790-15-1C5H9NO
- Oxazole, 4,5-dihydro-5,5-dimethyl-21857-13-6C5H9NO
- 2-Oxa-3-azabicyclo[2.2.1]heptane(8CI,9CI)279-32-3C5H9NO
- 3-Azabicyclo[3.1.0]hexane, 3-hydroxy-111887-60-6C5H9NO
- (5S)-5-Methylpyrrolidin-3-one299182-23-3C5H9NO
- O-(Pent-4-yn-1-yl)hydroxylamine149649-83-2C5H9NO
- (3R)-4-Hydroxy-3-methylbutanenitrile217189-83-8C5H9NO
- 3-Azabicyclo[3.1.0]hexan-1-ol1354953-83-5C5H9NO
- [1S-Cis]-4-amino-2-cyclopenten-1-olC5H9NO
- (R)-2-Aminopent-3-yn-1-ol1315036-08-8C5H9NO
- 3-Buten-2-one, 4-(methylamino)-20082-88-6C5H9NO
- (5R)-5-Methylpyrrolidin-3-one2705536-72-5C5H9NO
- 2-Oxabicyclo[3.1.0]hexan-6-amine1708160-40-0C5H9NO
- N-(2-Methylidenebutylidene)hydroxylamine99705-27-8C5H9NO
- (2R)-2-Aminocyclopentan-1-one1392278-39-5C5H9NO
- (1R,5S)-3-Oxa-6-azabicyclo[3.2.0]heptane2382416-97-7C5H9NO
- Pent-3-en-2-one oxime51616-93-4C5H9NO
- 3-Oxabicyclo[3.1.0]hexan-1-amine2027628-40-4C5H9NO
- rac-(1R,5R)-2-Oxa-6-azabicyclo[3.2.0]heptane1314391-95-1C5H9NO
- 4-Hydroxy-3-methylbutanenitrile64404-55-3C5H9NO
- 2-Amino-2-cyclopropylacetaldehyde2764015-73-6C5H9NO
- 5-Methylpyrrolidin-3-one1383775-73-2C5H9NO
- O-Cyclopent-2-en-1-ylhydroxylamine76029-45-3C5H9NO
- 1-(Methylamino)cyclopropane-1-carbaldehyde2680822-46-0C5H9NO
- 2-(Cyclopropylamino)acetaldehyde1904298-12-9C5H9NO
- 5-Dihydrofurfurylamine1823046-60-1C5H9NO
- 3-Buten-2-one, 4-(methylamino)-, (Z)-50874-63-0C5H9NO
- 1-Aminocyclobutane-1-carbaldehyde1020965-19-8C5H9NO
- 2-(Azetidin-3-yl)acetaldehyde1781214-02-5C5H9NO
- 1,2,3,6-Tetrahydropyridin-4-ol1004359-83-4C5H9NO
- 5-Oxa-6-azaspiro[2.4]heptane185-53-5C5H9NO
- (3R)-Pyrrolidine-3-carbaldehyde2290876-58-1C5H9NO
- (3S)-Pyrrolidine-3-carbaldehyde2679935-83-0C5H9NO
- 1-(Aminomethyl)cyclopropane-1-carbaldehyde1352992-75-6C5H9NO
- 3-Amino-3-methylcyclobutan-1-one1889643-97-3C5H9NO
- 4-Methylideneoxolan-3-amine2167821-66-9C5H9NO
- 4-Methylidenepyrrolidin-3-ol2375441-18-0C5H9NO
- 2-Azabicyclo[2.1.1]hexan-4-ol2384493-58-5C5H9NO
- 5-Aminopent-2-yn-1-ol2639401-84-4C5H9NO
- Ethyl prop-2-enimidate108306-23-6C5H9NO
Frequently asked questions
What is the molar mass of C5H9NO?
The molar mass of C5H9NO is 99.13 g/mol, calculated from standard atomic weights for 5 carbon atoms, 9 hydrogen atoms, 1 nitrogen atom and 1 oxygen atom. The monoisotopic mass is 108.1249 Da.
How many compounds have the formula C5H9NO?
CompoundList lists 274 compounds with the molecular formula C5H9NO, including 2-Oxa-1-azabicyclo[2.2.1]heptane, 3-Oxa-6-azabicyclo[3.1.1]heptane, 2-Methoxypyrroline. 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 C5H9NO?
C5H9NO has a degree of unsaturation of 2. 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.