4-Chloro-2-methylthiopyrimidine
- CAS No.
- 49844-90-8
- Chemical Name:
- 4-Chloro-2-methylthiopyrimidine
- Synonyms
- 4-CHLORO-2-(METHYLTHIO)PYRIMIDINE;4-CHLORO-2-METHYLSULFANYL-PYRIMIDINE;PYRIMIDINE, 4-CHLORO-2-(METHYLTHIO)-;4-Chloro-2-(methylthio)pyrimidine 97%;4-Chloro-2-(Methylthio)py...;2-methylthio-4-chloropyrimine;6-Chloro-2-methylthiopyrimidine;2-(Methylthio)-4-chloropyrimidine;4-Chloro-2-methylthiopyrimidine,97%;4-Chloro-2-(methylmercapto)pyrimidine
- CBNumber:
- CB9149799
- Molecular Formula:
- C5H5ClN2S
- Molecular Weight:
- 160.62
- MDL Number:
- MFCD00006083
- MOL File:
- 49844-90-8.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Melting point | −2 °C(lit.) |
|---|---|
| Boiling point | 139-140 °C36 mm Hg(lit.) |
| Density | 1.381 g/mL at 25 °C(lit.) |
| refractive index |
n |
| Flash point | >230 °F |
| storage temp. | under inert gas (nitrogen or Argon) at 2–8 °C |
| form | liquid |
| pka | -0.56±0.20(Predicted) |
| color | Colorless to Red to Green |
| Water Solubility | Not miscible or difficult to mix in water. |
| Sensitive | Hygroscopic |
| BRN | 118042 |
| InChI | InChI=1S/C5H5ClN2S/c1-9-5-7-3-2-4(6)8-5/h2-3H,1H3 |
| InChIKey | DFOHHQRGDOQMKG-UHFFFAOYSA-N |
| SMILES | C1(SC)=NC=CC(Cl)=N1 |
| CAS DataBase Reference | 49844-90-8(CAS DataBase Reference) |
| UNSPSC Code | 12352100 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) | ![]() GHS05 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H314 | |||||||||
| Precautionary statements | P280-P303+P361+P353-P304+P340+P310-P305+P351+P338-P363-P405 | |||||||||
| PPE | Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter | |||||||||
| Hazard Codes | C | |||||||||
| Risk Statements | 34 | |||||||||
| Safety Statements | 26-36/37/39-45 | |||||||||
| RIDADR | UN 1760 8/PG 2 | |||||||||
| WGK Germany | 3 | |||||||||
| F | 10-13-23 | |||||||||
| Hazard Note | Corrosive/Hygroscopic | |||||||||
| HazardClass | 8 | |||||||||
| PackingGroup | III | |||||||||
| HS Code | 29335990 | |||||||||
| Storage Class | 8A - Combustible corrosive hazardous materials | |||||||||
| Hazard Classifications | Skin Corr. 1B | |||||||||
| Limited Quantities | 1.0 L (0.3 gallons) (liquid) or 1 Kg (2.2 lbs) (solid) | |||||||||
| Excepted Quantities | Max Inner Pack (30g or 30ml) and Max Outer Pack (500g or 500ml) | |||||||||
| NFPA 704 |
|
4-Chloro-2-methylthiopyrimidine price More Price(54)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 145289 | 4-Chloro-2-methylthiopyrimidine 98% | 49844-90-8 | 10g | $56 | 2026-04-30 | Buy |
| Sigma-Aldrich | 145289 | 4-Chloro-2-methylthiopyrimidine 98% | 49844-90-8 | 50g | $265 | 2026-04-30 | Buy |
| TCI Chemical | C3087 | 4-Chloro-2-(methylthio)pyrimidine >98.0%(GC) | 49844-90-8 | 5g | $47 | 2026-04-30 | Buy |
| TCI Chemical | C3087 | 4-Chloro-2-(methylthio)pyrimidine >98.0%(GC) | 49844-90-8 | 25g | $141 | 2026-04-30 | Buy |
| AstaTech | 63254 | 4-CHLORO-2-METHYLSULFANYLPYRIMIDINE 95% | 49844-90-8 | 25G | $55 | 2026-04-30 | Buy |
4-Chloro-2-methylthiopyrimidine Chemical Properties, Uses, Production
Chemical Properties
Clear yellow to brown liquid
Uses
It finds it application as a building block used in medicinal chemistry synthesis. 4-Chloro-2-methylthiopyrimidine is used in the total synthesis of the marine alkaloid variolin B1 and 2-hydroxy-4-pyrimidinecarboxylic acid. It is also used in the synthesis of 2,4-disubstituted pyrimidines, a novel class of KDR kinase inhibitors.
Uses
4-Chloro-2-methylthiopyrimidine was used in the total synthesis of the marine alkaloid variolin B1 and 2-hydroxy-4-pyrimidinecarboxylic acid. It was used in the synthesis of 2,4-disubstituted pyrimidines, a novel class of KDR kinase inhibitors. It was used as building block in medicinal chemistry synthesis.
Synthesis
4-Chloro-2-methylthiopyrimidine can be produced from 2-thiouracil as raw material, dimethyl sulfate as methylation reagent, and thionyl chloride and phosphorus oxychloride as chlorination reagents by methylation and chlorination reaction.
4-Chloro-2-methylthiopyrimidine Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Changzhou Qinuo Chemical Co., Ltd.Co., Ltd. | 0519-0519-83812535 | sales@qinuochem.com | China | 287 | 60 |
| Xi'an Yutebang New Material Technology Co., Ltd. | 029-84536388 19991842844 | ella@yutbon.com | China | 155 | 58 |
| Shandong Chenyi Environmental Protection Technology Co., Ltd | 0531-83179999 13395316108 | cyhbkjyxgs@163.com | China | 196 | 58 |
| Nanbu County Chengxin Technology Co., Ltd. | 0838-5675166 15883665058 | nbcxkj@126.com | China | 956 | 55 |
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| Meryer (Shanghai) Chemical Technology Co., Ltd. | 4006356688 18621169109 | market03@meryer.com | China | 40202 | 62 |
| Alfa Aesar | 400-6106006 | saleschina@alfa-asia.com | China | 30103 | 84 |
| TCI (Shanghai) Development Co., Ltd. | 021-67121386 | Sales-CN@TCIchemicals.com | China | 24512 | 81 |
| Energy Chemical | 400-0056266 | sales8178@energy-chemical.com | China | 44850 | 61 |
| Capot Chemical Co., Ltd | +86 (0) 571 85 58 67 18 | China | 18187 | 66 |
View Latest Price from 4-Chloro-2-methylthiopyrimidine manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
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2026-06-30 | 4-Chloro-2-methylthiopyrimidine
49844-90-8
|
1kg | 99% | 10000KGS | Shaanxi Dideu New Materials Co. Ltd | ||
![]() |
2026-06-08 | 4-Chloro-2-methylthiopyrimidine
49844-90-8
|
1kg | 99% | 1 | Jinan Ruitong Biotech Co., Ltd. | ||
![]() |
2025-05-23 | 4-Chloro-2-methylthiopyrimidine
49844-90-8
|
$50.00 | 1kg | 99 | 5000 | Hebei Zhuanglai Chemical Trading Co Ltd |
-

- 4-Chloro-2-methylthiopyrimidine
49844-90-8
- $0.00
- 99%
- Shaanxi Dideu New Materials Co. Ltd
-

- 4-Chloro-2-methylthiopyrimidine
49844-90-8
- 99%
- Jinan Ruitong Biotech Co., Ltd.
-

- 4-Chloro-2-methylthiopyrimidine
49844-90-8
- $50.00
- 99
- Hebei Zhuanglai Chemical Trading Co Ltd







