1-Chloroisoquinoline
- CAS No.
- 19493-44-8
- Chemical Name:
- 1-Chloroisoquinoline
- Synonyms
- chloroisoquinoline;1-Chloroisoquinone;1-CHLOROISOQUINOLINE;Isoquinoline, 1-chloro-;1-Chloroisoquinoline,95%;1-Chloroisoquinoline 95%;1-Chloroisoquinoline >1-Chloroisoquinoline, 97+%;1-Chloroisoquinoline, 97+% 5GR;1-CHLOROISOQUINOLINE, 98.0+%(GC)
- CBNumber:
- CB1362127
- Molecular Formula:
- C9H6ClN
- Molecular Weight:
- 163.6
- MDL Number:
- MFCD00024134
- MOL File:
- 19493-44-8.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Product description | Number | Pack Size | Price |
| 1-Chloroisoquinoline 95% | 156744 | 1g | $38.7 |
| 1-Chloroisoquinoline 95% | 156744 | 5g | $135 |
| 1-Chloroisoquinoline >98.0%(GC) | C2097 | 5g | $72 |
| 1-Chloroisoquinoline >98.0%(GC) | C2097 | 25g | $218 |
| 1-CHLORO-ISOQUINOLINE 97% | 57804 | 5G | $17 |
| More product size | |||
| Melting point | 31-36 °C (lit.) |
|---|---|
| Boiling point | 274-275 °C/768 mmHg (lit.) |
| Density | 1.2108 (rough estimate) |
| refractive index | 1.6342 (estimate) |
| Flash point | >230 °F |
| storage temp. | Inert atmosphere,2-8°C |
| form | Low Melting Solid, Crystals and/or Chunks |
| pka | 2.03±0.30(Predicted) |
| color | White to yellow |
| Water Solubility | Insoluble in water. |
| BRN | 2996 |
| InChI | 1S/C9H6ClN/c10-9-8-4-2-1-3-7(8)5-6-11-9/h1-6H |
| InChIKey | MSQCQINLJMEVNJ-UHFFFAOYSA-N |
| SMILES | Clc1nccc2ccccc12 |
| CAS DataBase Reference | 19493-44-8(CAS DataBase Reference) |
| UNSPSC Code | 12352100 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H315-H319-H335 | |||||||||
| Precautionary statements | P261-P264-P271-P280-P302+P352-P305+P351+P338 | |||||||||
| target organs | Respiratory system | |||||||||
| PPE | dust mask type N95 (US), Eyeshields, Gloves | |||||||||
| Hazard Codes | Xi | |||||||||
| Risk Statements | 36/37/38 | |||||||||
| Safety Statements | 26-36 | |||||||||
| WGK Germany | 3 | |||||||||
| HS Code | 29334900 | |||||||||
| Storage Class | 11 - Combustible Solids | |||||||||
| Hazard Classifications | Eye Irrit. 2 Skin Irrit. 2 STOT SE 3 |
|||||||||
| NFPA 704 |
|
1-Chloroisoquinoline price More Price(65)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 156744 | 1-Chloroisoquinoline 95% | 19493-44-8 | 1g | $38.7 | 2026-04-30 | Buy |
| Sigma-Aldrich | 156744 | 1-Chloroisoquinoline 95% | 19493-44-8 | 5g | $135 | 2023-06-20 | Buy |
| TCI Chemical | C2097 | 1-Chloroisoquinoline >98.0%(GC) | 19493-44-8 | 5g | $72 | 2026-04-30 | Buy |
| TCI Chemical | C2097 | 1-Chloroisoquinoline >98.0%(GC) | 19493-44-8 | 25g | $218 | 2026-04-30 | Buy |
| AstaTech | 57804 | 1-CHLORO-ISOQUINOLINE 97% | 19493-44-8 | 5G | $17 | 2026-04-30 | Buy |
1-Chloroisoquinoline Chemical Properties,Uses,Production
Chemical Properties
white to yellow low melting solid, crystals and/or
Uses
Used in a Mn-catalyzed cross-coupling with aryl- and alkylmagnesium halides.1 Also used in a Pd-catalyzed cross-coupling with heteroaryl boronic acids and esters.2
Uses
1-Chloroisoquinone is used in the preparation of new aminoisoquinolinylurea derivatives which show antiproliferative activity against melanoma cell lines. It can also be applied to the control of stor age and stability of unstable boronic acids.
Uses
The product has been used in a Mn-catalyzed cross-coupling with aryl- and alkylmagnesium halides. It has also been used in a Pd-catalyzed cross-coupling with heteroaryl boronic acids and esters. Furthermore, it has been used in a homocoupling reaction to yield bis-isoquinoline, each enantiomer of which might be very useful as a chiral ligand for asymmetric synthesis. 1-Chloroisoquinone is used in the preparation of new aminoisoquinolinylurea derivatives which show antiproliferative activity against melanoma cell lines. It can also be applied to the control of storage age and stability of unstable boronic acids.
Synthesis
1532-72-5
19493-44-8
The general procedure for the synthesis of 1-chloroisoquinoline from isoquinoline-N-oxide was as follows: phosphoryl chloride (200 mL) was slowly added dropwise to isoquinoline-N-oxide (20.0 g) under ice bath cooling conditions. Subsequently, the reaction mixture was heated to 105 °C and refluxed overnight. Upon completion of the reaction, the excess phosphoryl chloride was removed by distillation under reduced pressure. The residue was quenched with ice water and extracted with dichloromethane. The organic layer was separated, dried over anhydrous sodium sulfate and concentrated. The crude product was purified by silica gel column chromatography using a mixed solvent of ethyl acetate and petroleum ether as eluent to afford the target product 1-chloroisoquinoline (21.0 g, 85% yield). The structure of the product was confirmed by 1H NMR (400 MHz, DMSO-d6): δ 8.25-8.31 (m, 2H), 8.08 (d, J = 8.0 Hz, 1H), 7.88-7.91 (m, 2H), 7.80-7.84 (m, 1H). Mass spectrometry (ESI+) showed a molecular ion peak m/z 164.0. HPLC analysis (Method A) showed a retention time (Rt) of 8.29 min and a purity of 96.0%.
References
[1] Organic Letters, 2015, vol. 17, # 12, p. 2948 - 2951
[2] European Journal of Organic Chemistry, 2016, vol. 2016, # 8, p. 1606 - 1611
[3] Patent: WO2013/92979, 2013, A1. Location in patent: Page/Page column 54
[4] Journal of Organic Chemistry, 1998, vol. 63, # 20, p. 6886 - 6890
[5] Tetrahedron: Asymmetry, 1993, vol. 4, # 4, p. 743 - 756
1-Chloroisoquinoline Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Hebei Chuanghai Biotechnology Co., Ltd | +86-15350571055 | Sibel@chuanghaibio.com | China | 8737 | 58 |
| Kindchem(Nanjing)Co.,Ltd | +86-025-025-85281586 18651653755 | sales@kindchem.cn | China | 1225 | 58 |
| Capot Chemical Co.,Ltd. | +86-（0）57185586718 +86-13336195806 | sales@capot.com | China | 29626 | 60 |
| Shanghai Daken Advanced Materials Co.,Ltd | +86-2158073036 | info@dakenam.com | China | 14036 | 58 |
| ATK CHEMICAL COMPANY LIMITED | +undefined-21-51877795 | ivan@atkchemical.com | China | 32997 | 60 |
| career henan chemical co | +86-0371-86658258 | sales@coreychem.com | China | 29766 | 58 |
| Shenzhen Nexconn Pharmatechs Ltd | +86-755-89396905 +86-15013857715 | admin@nexconn.com | China | 10399 | 58 |
| Jinan Carbotang Biotech Co.,Ltd. | +8615866703830 | figo.gao@foxmail.com | China | 8491 | 58 |
| Accela ChemBio Inc. | +1-858-6993322 +86-18019713315 | info@accelachem.com | United States | 21189 | 58 |
| Alchem Pharmtech,Inc. | 8485655694 | sales@alchempharmtech.com | United States | 63645 | 58 |
View Lastest Price from 1-Chloroisoquinoline manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-03-20 | 1-Chloroisoquinoline
19493-44-8
|
$9.80 | 1KG | 99% | 10 tons | Hebei Chuanghai Biotechnology Co., Ltd | |
 |
2025-11-18 | 1-Chloroisoquinoline
19493-44-8
|
$1.10 | 1g | 99.00% | 100 Tons | Dideu Industries Group Limited | |
 |
2025-04-04 | 1-Chloroisoquinoline
19493-44-8
|
1KG | 98% | 1ton | Henan Aochuang Chemical Co.,Ltd.
|
-
- 1-Chloroisoquinoline
19493-44-8
- $9.80
- 99%
- Hebei Chuanghai Biotechnology Co., Ltd
-
- 1-Chloroisoquinoline
19493-44-8
- $1.10
- 99.00%
- Dideu Industries Group Limited
-
- 1-Chloroisoquinoline
19493-44-8
- 98%
- Henan Aochuang Chemical Co.,Ltd.
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