4-Chloro-5-methylpyrimidine
Also known as: 4-Chloro-5-methylpyrimidine, 4-Chlor-5-methylpyrimidin, 4-Chloro-5-methyl-pyrimidine, Pyrimidine, 4-chloro-5-methyl-, Pyrimidine, 4-chloro-5-methyl- (6CI,9CI), 4-chloro-5-methyl-pyrimidine
4-Chloro-5-methylpyrimidine (CAS 51957-32-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H5ClN2 and a molecular weight of 128.560 g/mol. Key properties include a boiling point of 195.2±20.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 89.6±7.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 51957-32-5
- Jingsj CID
- J-1443502-0
- Molecular Formula
- C5H5ClN2
- Molecular Weight
- 128.560 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 195.2±20.0 °C at 760 mmHg |
|---|---|
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 89.6±7.4 °C |
| Exact Mass | 128.014130 |
| PSA | 25.78000 |
| LogP | 0.93 |
| Vapor Pressure | 0.6±0.4 mmHg at 25°C |
| Refractive Index | 1.530 |
| Storage Conditions | 2-8°C |
Customs & Trade Information
| HS Code | 2933599090 |
|---|---|
| Summary | 2933599090. other compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of 4-Chloro-5-methylpyrimidine?
The CAS number of 4-Chloro-5-methylpyrimidine is 51957-32-5.
What are the molecular formula and molecular weight of 4-Chloro-5-methylpyrimidine?
4-Chloro-5-methylpyrimidine has molecular formula C5H5ClN2 and molecular weight 128.560 g/mol.
What are the upstream and downstream products of 4-Chloro-5-methylpyrimidine?
For 4-Chloro-5-methylpyrimidine, Upstream Products: 4-Hydroxy-5-methylpyrimidine; Downstream Products: 5-Pyrimidinecarboxylic acid, 5-Methylpyrimidine.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-Chloro-5-methylpyrimidine (CAS 51957-32-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1443502-0 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.