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Lactones

Organic heterocyclic compounds that consist of cyclic carboxylic esters and one or more heteroatoms replacing carbon atoms in the ring.
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121 – 135 of 755 results
121

Sigma Aldrich delta-Valerolactone

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
Boiling Point 226°C to 229°C (lit.), 58°C to 60°C (0.5 mmHg)
Linear Formula C5H8O2
CAS 542-28-9
Molecular Weight (g/mol) 100.12
MDL Number MFCD00006645
Refractive Index n20/D 1.457 (literature)
Synonym delta-Valerolactone; Tetrahydro-2 H-2-pyranone
Recommended Storage -20°C
Molecular Formula C5H8O2
EINECS Number 208-807-1
Density 1.079 g/mL (at 25°C (literature))
Melting Point -13°C to +12°C (lit.)
122

Sigma Aldrich alpha-Hydroxy-gamma-butyrolactone

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
CAS 19444-84-9
123

Sigma Aldrich Undecanoic gamma-lactone

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
CAS 104-67-6
124

Sigma Aldrich Glutaric anhydride

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
Boiling Point 150°C
Percent Purity 95%
Linear Formula C5H6O3
CAS 108-55-4
Molecular Weight (g/mol) 114.1
MDL Number MFCD00006679
RTECS Number MA3850000
Recommended Storage Room Temperature
Molecular Formula C5H6O3
EINECS Number 203-593-6
Melting Point 50°C to 55°C
125

Sigma Aldrich Isonipecotic 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
CAS 498-94-2
126

Sigma Aldrich beta-Butyrolactone

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
Boiling Point 71°C to 73°C (29 mmHg)
Linear Formula C4H6O2
Molecular Weight (g/mol) 86.09
Density 1.056 g/mL (at 25°C (literature))
Percent Purity 98%
CAS 3068-88-0
MDL Number MFCD00005170
Refractive Index n20/D 1.411 (literature)
Synonym beta-Butyrolactone; beta-Methyl-beta-propiolactone; 3-Hydroxybutyric acid beta-lactone; 4-Methyl-2-oxetanone
RTECS Number RQ8050000
Recommended Storage Room Temperature
Molecular Formula C4H6O2
EINECS Number 221-330-3
Melting Point -43.5°C (lit.)
127

Sigma Aldrich D-(+)-Glucuronic Acid Gamma-Lactone

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
Synonym D-(+)-Glucurono-6,3-lactone; D-Glucurone; D-Glucurono-6,3-lactone; Glucuronolactone
Recommended Storage Room Temperature
128

Sigma Aldrich L-Gulonic Acid Gamma-Lactone

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
Linear Formula C6H10O6
CAS 1128-23-0
Molecular Weight (g/mol) 178.14 g/mol
MDL Number MFCD00064331
Synonym L-Gulonic gamma-lactone; L-(+)-Gulono-1,4-lactone
Recommended Storage 2°C to 8°C
Molecular Formula C6H10O6
Melting Point 187°C to 190°C
129

Sigma Aldrich (S)-(-)-Alpha-Amino-Gamma-Butyrolactone Hydrobromide

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
CAS 151169-75-4
130

Sigma Aldrich alpha-Methylene-gamma-butyrolactone

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
Boiling Point 86°C to 88°C (12 mmHg)
Percent Purity 97%
Linear Formula C5H6O2
CAS 547-65-9
Molecular Weight (g/mol) 98.1
MDL Number MFCD00005407
Refractive Index n20/D 1.472 (literature)
Synonym alpha-Methylene-gamma-butyrolactone; 3-Methylenedihydro-2(3 H)-furanone; Tulipane
Recommended Storage 2°C to 8°C
Molecular Formula C5H6O2
Density 1.119 g/mL (at 25°C (literature))
131

Sigma Aldrich 3,3-Dimethylglutaric 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
Percent Purity 98%
Linear Formula HOOCCH2C(CH3)2 CH2COOH
CAS 4839-46-7
Molecular Weight (g/mol) 160.17
MDL Number MFCD00002716
Synonym 3,3-Dimethylpentanedioic acid; NSC 14987; NSC 49114
Recommended Storage Room Temperature
Molecular Formula C7H12O4
EINECS Number 225-425-0
Melting Point 100°C to 102°C (lit.)
132

Sigma Aldrich 6-Hydroxypyridine-3-carboxylic 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
CAS 5006-66-6
133

Sigma Aldrich (3AR)-(+)-Sclareolide

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
134

Medchemexpress LLC C21H18F7N3O4 | 98.0% | 509.37 | 1 MG
SDP

RTx-161 is an allosteric Polθ polymerase inhibitor with an IC50 value of 4.1 nM. It selectively kills HR-deficient cancer cells and suppresses PARP inhibitor (PARPi) resistance in multiple genetic backgrounds, including HR-proficient cells. RTx-161 can also induce apoptosis.

  • Allosteric Polθ polymerase inhibitor with an IC50 of 4.1 nM.
  • Selectively kills HR-deficient cancer cells.
  • Suppresses PARP inhibitor (PARPi) resistance in multiple genetic backgrounds, including HR-proficient cells.
  • Can induce apoptosis.

ENCOMPASS_PREFERRED
135

Medchemexpress LLC Butyrolactone I | 87414-49-1 | 99.8% | 424.44 | 10 MG
SDP

Butyrolactone I | 87414-49-1 | 99.8% | 424.44 | 10 MG

ENCOMPASS_PREFERRED