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Carbonyl compounds

Organic compounds that contain one or more carbonyl (a carbon atom with a double bond to an oxygen atom) functional groups. Includes compounds with functional groups that contain a carbonyl in their structure such as ketones, aldehydes, and others.
Complex Ketones (4,327)
Complex Aldehydes (4,284)
Dicarbonyl Compounds (582)
Alpha beta-unsaturated carbonyl compounds (547)
Acyloins (78)

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2,551 – 2,565 of 6,913 results
2,551

Sigma Aldrich 3-Bromo-N,N,1-trimethyl-1H-1,2,4-triazol-5-amine dihydrochloride

MilliporeSigma Sigma Organics products encompass a wide range of quality reagents, solvents, catalysts, and building blocks for organic synthesis. From benchtop discovery to process development and scale-up, Sigma Organics solutions are built to meet the needs of synthetic chemists.

ENCOMPASS ENCOMPASS_PREFERRED
2,552

Sigma Aldrich 2-Furyl methyl ketone

MilliporeSigma Sigma Organics products encompass a wide range of quality reagents, solvents, catalysts, and building blocks for organic synthesis. From benchtop discovery to process development and scale-up, Sigma Organics solutions are built to meet the needs of synthetic chemists.

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Boiling Point 67°C (10 mmHg)
Linear Formula C6H6O2
Molecular Weight (g/mol) 110.11
Density 1.098 g/mL (at 25°C (literature))
Percent Purity 99%
CAS 1192-62-7
MDL Number MFCD00003242
Refractive Index n20/D 1.5070 (literature)
Synonym 2-Acetylfuran
RTECS Number OB3870000
Recommended Storage Room Temperature
Molecular Formula C6H6O2
EINECS Number 214-757-1
Melting Point 26°C to 28°C (lit.)
2,553

Sigma Aldrich 2-Ethyl-1-butene

MilliporeSigma Sigma Organics products encompass a wide range of quality reagents, solvents, catalysts, and building blocks for organic synthesis. From benchtop discovery to process development and scale-up, Sigma Organics solutions are built to meet the needs of synthetic chemists.

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CAS 760-21-4
2,554

Sigma Aldrich Sodium anthraquinone-2-sulfonate

MilliporeSigma Sigma Organics products encompass a wide range of quality reagents, solvents, catalysts, and building blocks for organic synthesis. From benchtop discovery to process development and scale-up, Sigma Organics solutions are built to meet the needs of synthetic chemists.

ENCOMPASS ENCOMPASS_PREFERRED
Percent Purity ≥98% (HPLC)
Linear Formula C14H7NaO5S
CAS 131-08-8
Molecular Weight (g/mol) 310.26
MDL Number MFCD00001229
Synonym 9,10-Dihydro-9,10-dioxo-2-anthracenesulfonic acid sodium salt; Anthraquinone-2-sulfonic acid sodium salt
RTECS Number CB1095550
Recommended Storage Room Temperature
Molecular Formula C14H7NaO5S
EINECS Number 205-009-5
2,555

Sigma Aldrich 2-(Dibenzylamino)acetamide

MilliporeSigma Sigma Organics products encompass a wide range of quality reagents, solvents, catalysts, and building blocks for organic synthesis. From benchtop discovery to process development and scale-up, Sigma Organics solutions are built to meet the needs of synthetic chemists.

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2,556

Sigma Aldrich Salicylaldehyde

MilliporeSigma Sigma Organics products encompass a wide range of quality reagents, solvents, catalysts, and building blocks for organic synthesis. From benchtop discovery to process development and scale-up, Sigma Organics solutions are built to meet the needs of synthetic chemists.

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Boiling Point 197°C (lit.)
Percent Purity ≥99.0% (GC)
Linear Formula 2-(HO)C6H4CHO
CAS 90-02-8
Molecular Weight (g/mol) 122.12
MDL Number MFCD00003317
Refractive Index n20/D 1.573 (literature); n20/D 1.573
Synonym 2-Hydroxybenzaldehyde
Recommended Storage Room Temperature
Molecular Formula C7H6O2
Density 1.146 g/mL (at 25°C (literature))
Melting Point 1°C to 2°C (lit.)
2,557

Sigma Aldrich Dimethyl malonate

MilliporeSigma Sigma Organics products encompass a wide range of quality reagents, solvents, catalysts, and building blocks for organic synthesis. From benchtop discovery to process development and scale-up, Sigma Organics solutions are built to meet the needs of synthetic chemists.

ENCOMPASS ENCOMPASS_PREFERRED
Boiling Point 180°C to 181°C (lit.)
Percent Purity ≥96.0% (GC)
Linear Formula CH2(COOCH3)2
CAS 108-59-8
Molecular Weight (g/mol) 132.11
MDL Number MFCD00008460
Refractive Index n20/D 1.413 (literature); n20/D 1.413
RTECS Number OO0950000
Recommended Storage Room Temperature
Molecular Formula C5H8O4
EINECS Number 203-597-8
Density 1.156 g/mL (at 25°C (literature))
Melting Point -62°C (lit.)
2,558

Sigma Aldrich 4'-Hydroxyacetophenone

MilliporeSigma Sigma Organics products encompass a wide range of quality reagents, solvents, catalysts, and building blocks for organic synthesis. From benchtop discovery to process development and scale-up, Sigma Organics solutions are built to meet the needs of synthetic chemists.

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Boiling Point 147°C to 148°C (3 mmHg)
Percent Purity 99%
Linear Formula HOC6H4COCH3
CAS 99-93-4
Molecular Weight (g/mol) 136.15
MDL Number MFCD00002359
Synonym 4-Hydroxyphenylethanone; p-Acetophenol; p-Hydroxyphenyl methyl ketone; Piceol
RTECS Number AM8750000
Recommended Storage Room Temperature
Molecular Formula C8H8O2
EINECS Number 202-802-8
Melting Point 109°C to 111°C (lit.)
2,559

Sigma Aldrich 2-Methylanthraquinone

MilliporeSigma Sigma Organics products encompass a wide range of quality reagents, solvents, catalysts, and building blocks for organic synthesis. From benchtop discovery to process development and scale-up, Sigma Organics solutions are built to meet the needs of synthetic chemists.

ENCOMPASS ENCOMPASS_PREFERRED
Boiling Point 236°C to 238°C (10 mmHg)
Percent Purity ≥95% (HPLC)
Linear Formula C15H10O2
CAS 84-54-8
Molecular Weight (g/mol) 222.24
MDL Number MFCD00001235
Synonym 2-MAQ
Recommended Storage Room Temperature
Molecular Formula C15H10O2
EINECS Number 201-539-6
Melting Point 170°C to 173°C (lit.)
2,560

Sigma Aldrich Methyl 4-formylbenzoate

MilliporeSigma Sigma Organics products encompass a wide range of quality reagents, solvents, catalysts, and building blocks for organic synthesis. From benchtop discovery to process development and scale-up, Sigma Organics solutions are built to meet the needs of synthetic chemists.

ENCOMPASS ENCOMPASS_PREFERRED
Boiling Point 265°C (lit.)
Percent Purity 99%
Linear Formula HCOC6H4CO2CH3
CAS 1571-08-0
Molecular Weight (g/mol) 164.16
MDL Number MFCD00006950
Synonym Methyl benzaldehyde-4-carboxylate; Methyl terephthalaldehydate
Recommended Storage Room Temperature
Molecular Formula C9H8O3
EINECS Number 216-385-5
Melting Point 59°C to 63°C (lit.)
2,561

Sigma Aldrich 2,3-Dimethylbenzoic acid

MilliporeSigma Sigma Organics products encompass a wide range of quality reagents, solvents, catalysts, and building blocks for organic synthesis. From benchtop discovery to process development and scale-up, Sigma Organics solutions are built to meet the needs of synthetic chemists.

ENCOMPASS ENCOMPASS_PREFERRED
CAS 603-79-2
2,562

Sigma Aldrich 5-Chlorosalicylaldehyde

MilliporeSigma Sigma Organics products encompass a wide range of quality reagents, solvents, catalysts, and building blocks for organic synthesis. From benchtop discovery to process development and scale-up, Sigma Organics solutions are built to meet the needs of synthetic chemists.

ENCOMPASS ENCOMPASS_PREFERRED
Percent Purity 98%
Linear Formula ClC6H3(OH)CHO
CAS 635-93-8
Molecular Weight (g/mol) 156.57
MDL Number MFCD00003331
RTECS Number VN5450000
Recommended Storage Room Temperature
Molecular Formula C7H5ClO2
EINECS Number 211-244-4
Melting Point 100°C to 102°C (lit.)
2,563

Sigma Aldrich trans-2-Nonenal

MilliporeSigma Sigma Organics products encompass a wide range of quality reagents, solvents, catalysts, and building blocks for organic synthesis. From benchtop discovery to process development and scale-up, Sigma Organics solutions are built to meet the needs of synthetic chemists.

ENCOMPASS ENCOMPASS_PREFERRED
Boiling Point 88°C to 90°C (12 mmHg)
Percent Purity 97%
Linear Formula CH3(CH2)5 CH=CHCHO
CAS 18829-56-6
Biological Activity Respiratory System
Molecular Weight (g/mol) 140.22
MDL Number MFCD00007012
Refractive Index n20/D 1.453 (literature)
RTECS Number RA8509050
Recommended Storage Room Temperature
Molecular Formula C9H16O
EINECS Number 242-609-6
Density 0.846 g/mL (at 25°C (literature))
2,564

Sigma Aldrich 1,3-Dichloroacetone

MilliporeSigma Sigma Organics products encompass a wide range of quality reagents, solvents, catalysts, and building blocks for organic synthesis. From benchtop discovery to process development and scale-up, Sigma Organics solutions are built to meet the needs of synthetic chemists.

ENCOMPASS ENCOMPASS_PREFERRED
Boiling Point 173°C (lit.)
Percent Purity ≥95%
Linear Formula ClCH2COCH2Cl
CAS 534-07-6
Molecular Weight (g/mol) 126.97
MDL Number MFCD00000937
RTECS Number UC1430000
Recommended Storage 2°C to 8°C
Molecular Formula C3H4Cl2O
EINECS Number 208-585-6
Density 1.383 g/mL (at 25°C (literature))
Melting Point 39°C to 41°C (lit.)
2,565

Sigma Aldrich 2-Oxovaleric acid

MilliporeSigma Sigma Organics products encompass a wide range of quality reagents, solvents, catalysts, and building blocks for organic synthesis. From benchtop discovery to process development and scale-up, Sigma Organics solutions are built to meet the needs of synthetic chemists.

ENCOMPASS ENCOMPASS_PREFERRED
Boiling Point 88°C to 90°C (12 mmHg)
Percent Purity ≥98.0% (T)
Linear Formula CH3CH2CH2COCOOH
CAS 1821-02-9
Molecular Weight (g/mol) 116.12
MDL Number MFCD00066435
Synonym alpha-Ketovaleric acid; 2-Oxopentanoic acid
Recommended Storage 2°C to 8°C
Molecular Formula C5H8O3
EINECS Number 217-340-2
Density 1.110 g/mL (at 20°C (literature))
Melting Point 7°C to 9°C (lit.)