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Heterocyclic compounds

Heterocyclic compounds are a class of organic compounds that contain at least one ring structure composed of carbon atoms and other heteroatoms like nitrogen, oxygen, sulfur, and occasionally other elements. These compounds differ from homocyclic compounds, which have rings composed solely of carbon atoms.

Heterocyclic compounds Categories

Here are some examples of common heterocyclic compounds:

Pyridines: Pyridines are heterocyclic compounds that contain a six-membered ring containing five carbon atoms and one nitrogen atom. Pyridine is the simplest example, and it is commonly used as a solvent and in the production of pesticides, pharmaceuticals, and dyes.

Furans: Furans are heterocyclic compounds that contain a five-membered ring containing four carbon atoms and one oxygen atom. Furan itself is a colorless liquid that is used as a starting material for the synthesis of pharmaceuticals, agrochemicals, and flavors.

Imidazoles: Imidazoles are heterocyclic compounds that contain a five-membered ring containing two nitrogen atoms. Imidazole itself is a colorless solid that is used as a building block for the synthesis of pharmaceuticals and agrochemicals.

Pyrimidines: Pyrimidines are heterocyclic compounds that contain a six-membered ring containing two nitrogen atoms. Some examples of pyrimidines include cytosine, thymine, and uracil, which are nucleobases found in DNA and RNA.

Benzimidazoles: Benzimidazoles are heterocyclic compounds that contain a fused ring system consisting of a benzene ring and an imidazole ring. Benzimidazole itself is a white solid that is used in the production of pharmaceuticals and agrochemicals.

These are just a few examples of the many types of heterocyclic compounds that exist. The properties and applications of these compounds vary widely depending on their structure and composition.

Usage of Heterocyclic compounds Products

Heterocyclic compounds play a pivotal role across various domains due to their wide-ranging applications. These compounds are naturally present in numerous biological entities, including amino acids, nucleic acids, and vitamins. Beyond their prevalence in nature, they hold significant importance in industries such as pharmaceuticals, agrochemicals, and materials science. Their versatile nature and structural diversity make them indispensable for developing innovative solutions and advancing research in these fields.

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Imidazole; 288-32-4 structural formula
Imidazole
  • Imidazole is a planar 5-membered ring. Imidazole is a highly polar compound. Imidazole has been used extensively as a corrosion inhibitor.Imidazole is incorporated into many important biological molecules. The most pervasive is the amino acid histidine, which has an imidazole side-chain. Imidazole i..
  • CAS No: 288-32-4
  • Molecular Weight: 68.079
  • Molecular Formula:C3H4N2
  • Density:1.116
  • Boiling Point:90.5 °C
  • Flash Point:145°C c.c.
Encyclopedia Safety and Handling MSDS NMR Spectrum Synthesis Route 571 Suppliers Request For Quotation
Celecoxib; 169590-42-5 structural formula
Celecoxib
  • Celecoxib, with the chemical formula C17H14F3N3O2S, has the CAS number 169590-42-5. It is a nonsteroidal anti-inflammatory drug (NSAID) belonging to the class of cox-2 inhibitors. Celecoxib appears as a white to off-white crystalline powder with no distinct odor. Its basic structure consists of a ce..
  • CAS No: 169590-42-5
  • Molecular Weight: 381.37217
  • Molecular Formula:C17H14F3N3O2S
  • Density:1.43
  • Boiling Point:529.0±60.0
  • Flash Point:273.7 °C
Encyclopedia Safety and Handling MSDS Synthesis Route 412 Suppliers Request For Quotation
Indole; 120-72-9 structural formula
Indole
  • Indole has an unpleasant odor at high concentration, odor becomes floral at higher dilutions white crystals with an unpleasant odourindole: A yellow solid, C8H7N, m.p.52°C. Its molecules consist of a benzenering fused to a nitrogen-containingfive-membered ring. It occurs insome plants and in coal ta..
  • CAS No: 120-72-9
  • Molecular Weight: 117.14788
  • Molecular Formula:C8H7N
  • Density:1.22
  • Boiling Point:253-254℃
  • Flash Point:136℃
Encyclopedia Safety and Handling MSDS NMR Spectrum 341 Suppliers Request For Quotation
2-Naphthol; 135-19-3 structural formula
2-Naphthol
  • 2-Naphthol is a metabolite of naphthalene, catalyzed by cytochrome P450 (CYP) isozymes (CYP 1A1, CYP 1A2, CYP 2A1, CYP 2E1 and CYP 2F2). DryPowder; Liquid|Solid|WHITE-TO-YELLOWISH-WHITE CRYSTALS WITH CHARACTERISTIC ODOUR. 2-naphthol is a naphthol carrying a hydroxy group at position 2. It has a rol..
  • CAS No: 135-19-3
  • Molecular Weight: 144.16992
  • Molecular Formula:C10H8O
  • Density:1.28
  • Boiling Point:285-286℃
  • Flash Point:160℃
Encyclopedia Safety and Handling MSDS NMR Spectrum Synthesis Route 333 Suppliers Request For Quotation
5-Bromo-2-chloropyrimidine; 32779-36-5 structural formula
5-Bromo-2-chloropyrimidine
  • 5-Bromo-2-chloropyrimidine, with the chemical formula C4H2BrClN2, has the CAS number 32779-36-5. It appears as a colorless to light yellow solid with a faint odor. The basic structure of 5-Bromo-2-chloropyrimidine consists of a pyrimidine ring with a bromine atom and a chlorine atom attached to it. ..
  • CAS No: 32779-36-5
  • Molecular Weight: 193.43
  • Molecular Formula:C4H2BrClN2
  • Density:1.859±0.06 g/cm3(Predicted)
  • Boiling Point:95°C 15mm
  • Flash Point:95°C/15mm
Encyclopedia Safety and Handling MSDS Synthesis Route 307 Suppliers Request For Quotation
6-Fluoroindole; 399-51-9 structural formula
6-Fluoroindole
  • 6-Fluoroindole, with the chemical formula C8H6FN, has the CAS number 399-51-9. It appears as a white to off-white solid with no distinct odor. The basic structure of 6-Fluoroindole consists of a benzene ring fused with a five-membered nitrogen-containing ring, with a fluorine atom attached to the be..
  • CAS No: 399-51-9
  • Molecular Weight: 135.141
  • Molecular Formula:C8H6FN
  • Density:1.273
  • Boiling Point:258 oC at 760 mmHg
  • Flash Point:109.9 oC
Encyclopedia Safety and Handling MSDS Synthesis Route 276 Suppliers Request For Quotation
2-Thiopheneboronic acid; 6165-68-0 structural formula
2-Thiopheneboronic acid
  • 2-Thiopheneboronic acid, with the chemical formula C4H5BO2S, has the CAS number 6165-68-0. It appears as a white to off-white crystalline powder. It has a molecular weight of 133.89 g/mol. 2-Thiopheneboronic acid is sparingly soluble in water, but soluble in organic solvents such as methanol and eth..
  • CAS No: 6165-68-0
  • Molecular Weight: 127.952
  • Molecular Formula:C4H5BO2S
  • Density:1.32
  • Boiling Point:287.9 oC at 760 mmHg
  • Flash Point:127.9 oC
Encyclopedia Safety and Handling MSDS NMR Spectrum 264 Suppliers Request For Quotation
Methylisothiazolinone; 2682-20-4 structural formula
Methylisothiazolinone
  • Methylisothiazolinone, with the chemical formula C4H5NOS, has the CAS number 2682-20-4. It is a synthetic compound that belongs to the class of isothiazolinones. Methylisothiazolinone appears as a clear to pale yellow liquid with a characteristic odor. Its basic structure consists of a methyl group ..
  • CAS No: 2682-20-4
  • Molecular Weight: 115.1536
  • Molecular Formula:C4H5NOS
  • Density:1.25 (14% aq.)
  • Boiling Point:182.8 oC at 760 mmHg
  • Flash Point:64.3 oC
Encyclopedia Safety and Handling MSDS NMR Spectrum Synthesis Route 280 Suppliers Request For Quotation
2-Pyridinecarboxaldehyde; 1121-60-4 structural formula
2-Pyridinecarboxaldehyde
  • 2-Pyridinecarboxaldehyde, with the chemical formula C6H5NO, has the CAS number 1121-60-4. It appears as a yellow to brown liquid with a strong, pungent odor. Its basic structure consists of a pyridine ring with a carboxaldehyde functional group attached. This compound is soluble in water and organic..
  • CAS No: 1121-60-4
  • Molecular Weight: 107.11
  • Molecular Formula:C6H5NO
  • Density:1.126 g/mL at 25 °C(lit.)
  • Boiling Point:181 °C(lit.)
  • Flash Point:130 °F
Encyclopedia Safety and Handling MSDS NMR Spectrum Synthesis Route 261 Suppliers Request For Quotation
2-Chloro-5-chloromethylthiazole; 105827-91-6 structural formula
2-Chloro-5-chloromethylthiazole
  • White crystal or powder2-Chloro-5-chloromethylthiazole is used as pharmaceutical and agrochemical intermediate. It is also used as intermediate of insecticides Thiamethoxam and Clothianidin. It is also useful in in the synthesis of Ritonavir (R535000); a second-generation anti-AIDS drug and a select..
  • CAS No: 105827-91-6
  • Molecular Weight: 168.035
  • Molecular Formula:C4H3Cl2NS
  • Density:1.503
  • Boiling Point:268.6°Cat760mmHg
  • Flash Point:116.3°C
Encyclopedia Safety and Handling MSDS NMR Spectrum Synthesis Route 235 Suppliers Request For Quotation
2-Methylpyrazine; 109-08-0 structural formula
2-Methylpyrazine
  • 2-Methylpyrazine has a nutty, cocoa, green, roasted, chocolate, meaty odor. clear colorless to slightly yellow liquid2-Methylpyrazine has an odor threshold in water variously reported at 60,000 or 105,000 ppb. May be prepared from the corresponding carboxylic acid; by catalytic dehydrogenation of 2-..
  • CAS No: 109-08-0
  • Molecular Weight: 94.117
  • Molecular Formula:C5H6N2
  • Density:1.03
  • Boiling Point:135℃ (761 torr)
  • Flash Point:50℃
Encyclopedia Safety and Handling MSDS NMR Spectrum Synthesis Route 210 Suppliers Request For Quotation
3-Hydroxyazetidine hydrochloride; 18621-18-6 structural formula
3-Hydroxyazetidine hydrochloride
  • 3-Hydroxyazetidine hydrochloride, with the chemical formula C3H8ClNO, has the CAS number 18621-18-6. It appears as a white to off-white crystalline powder with no distinct odor. The basic structure of 3-Hydroxyazetidine hydrochloride consists of a hydroxyazetidine ring attached to a chloride ion. Th..
  • CAS No: 18621-18-6
  • Molecular Weight: 109.553
  • Molecular Formula:C3H8ClNO
  • Density:1.1010
  • Boiling Point:170.7 °C at 760 mmHg
  • Flash Point:120.4 °C
Encyclopedia Safety and Handling MSDS NMR Spectrum Synthesis Route 245 Suppliers Request For Quotation
1-N-Boc-3-hydroxyazetidine; 141699-55-0 structural formula
1-N-Boc-3-hydroxyazetidine
  • 1-N-Boc-3-hydroxyazetidine, with the chemical formula C9H17NO3, has the CAS number 141699-55-0. It appears as a colorless to light yellow liquid with a faint odor. The basic structure of 1-N-Boc-3-hydroxyazetidine consists of a Boc protecting group attached to a hydroxyazetidine ring. This compound ..
  • CAS No: 141699-55-0
  • Molecular Weight: 173.212
  • Molecular Formula:C8H15NO3
  • Density:1.184
  • Boiling Point:253.7 °C at 760 mmHg
  • Flash Point:107.2 °C
Encyclopedia Safety and Handling MSDS Synthesis Route 236 Suppliers Request For Quotation
2-Fluoropyridine; 372-48-5 structural formula
2-Fluoropyridine
  • 2-Fluoropyridine (CAS 372-48-5) is a colorless liquid with a molecular formula of C5H4FN. It has a solubility of 0.8 g/100 mL in water at 20°C. The physical properties of 2-Fluoropyridine include a boiling point of 112-113°C, a melting point of -29°C, and a density of 1.11 g/mL. It is a flammable li..
  • CAS No: 372-48-5
  • Molecular Weight: 97.092
  • Molecular Formula:C5H4FN
  • Density:1.336
  • Boiling Point:126℃ (753 mmHg)
  • Flash Point:28℃
Encyclopedia Safety and Handling MSDS NMR Spectrum Synthesis Route 229 Suppliers Request For Quotation
3-Fluoropyridine; 372-47-4 structural formula
3-Fluoropyridine
  • 3-Fluoropyridine (CAS 372-47-4) is a colorless liquid with a molecular formula of C5H4FN. It has a solubility of 3.6 g/L in water at 20°C. The physical properties of 3-Fluoropyridine include a boiling point of 97-98°C, a melting point of -24°C, and a density of 1.12 g/cm3. It is a flammable liquid a..
  • CAS No: 372-47-4
  • Molecular Weight: 97.092
  • Molecular Formula:C5H4FN
  • Density:1.13
  • Boiling Point:107-108℃
  • Flash Point:13℃
Encyclopedia Safety and Handling MSDS NMR Spectrum Synthesis Route 221 Suppliers Request For Quotation
(R)-1-Boc-3-Aminopiperidine; 188111-79-7 structural formula
(R)-1-Boc-3-Aminopiperidine
  • (R)-1-Boc-3-Aminopiperidine, with the chemical formula C12H24N2O2, has the CAS number 188111-79-7. It appears as a colorless to pale yellow liquid with a faint odor. The basic structure of (R)-1-Boc-3-Aminopiperidine consists of a piperidine ring with an amino group and a tert-butoxycarbonyl (Boc) p..
  • CAS No: 188111-79-7
  • Molecular Weight: 200.282
  • Molecular Formula:C10H20N2O2
  • Density:1.041
  • Boiling Point:277.3°Cat760mmHg
  • Flash Point:121.5°C
Encyclopedia Safety and Handling MSDS NMR Spectrum Synthesis Route 233 Suppliers Request For Quotation
2,4-Dichloropyridine; 26452-80-2 structural formula
2,4-Dichloropyridine
  • 2,4-Dichloropyridine, with the chemical formula C5H3Cl2N, has the CAS number 26452-80-2. It appears as a colorless to light yellow liquid with a pungent odor. The basic structure of 2,4-Dichloropyridine consists of two chlorine atoms attached to a pyridine ring. This compound is sparingly soluble in..
  • CAS No: 26452-80-2
  • Molecular Weight: 147.99
  • Molecular Formula:C5H3Cl2N
  • Density:1.37
  • Boiling Point:189-190 °C (lit.) 76-78 °C/23 mmHg (lit.)
  • Flash Point:189-190°C
Encyclopedia Safety and Handling MSDS Synthesis Route 234 Suppliers Request For Quotation
1-Hydroxyethylethoxypiperazine; 13349-82-1 structural formula
1-Hydroxyethylethoxypiperazine
  • 1-Hydroxyethylethoxypiperazine, with the chemical formula C6H14N2O2, has the CAS number 13349-82-1. It appears as a colorless to pale yellow liquid with a faint odor. The basic structure of 1-Hydroxyethylethoxypiperazine consists of a piperazine ring with an ethoxyethyl group and a hydroxyethyl grou..
  • CAS No: 13349-82-1
  • Molecular Weight: 174.24072
  • Molecular Formula:C8H18N2O2
  • Density:1.016
  • Boiling Point:150℃ (13 mmHg)
  • Flash Point:>110℃
Encyclopedia Safety and Handling MSDS NMR Spectrum Synthesis Route 242 Suppliers Request For Quotation
5-Amino-2-bromopyridine; 13534-97-9 structural formula
5-Amino-2-bromopyridine
  • 5-Amino-2-bromopyridine, with the chemical formula C5H5BrN2, has the CAS number 13534-97-9. It appears as a white to light yellow crystalline powder with no distinct odor. The basic structure of 5-Amino-2-bromopyridine consists of a pyridine ring with a bromine atom and an amino group attached to it..
  • CAS No: 13534-97-9
  • Molecular Weight: 173.013
  • Molecular Formula:C5H5BrN2
  • Density:1.71
  • Boiling Point:291.2 °C at 760 mmHg
  • Flash Point:291.2 °C at 760 mmHg
Encyclopedia Safety and Handling MSDS Synthesis Route 211 Suppliers Request For Quotation
5-Bromopyridine-2-carboxylic acid; 30766-11-1 structural formula
5-Bromopyridine-2-carboxylic acid
  • 5-Bromopyridine-2-carboxylic acid, with the chemical formula C6H4BrNO2, has the CAS number 30766-11-1. It appears as a white to off-white solid with no distinct odor. The basic structure of 5-Bromopyridine-2-carboxylic acid consists of a pyridine ring with a carboxylic acid group and a bromine atom ..
  • CAS No: 30766-11-1
  • Molecular Weight: 202.00546
  • Molecular Formula:C6H4BrNO2
  • Density:1.813
  • Boiling Point:319.5°Cat760mmHg
  • Flash Point:147 °C
Encyclopedia Safety and Handling MSDS Synthesis Route 220 Suppliers Request For Quotation
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