2,4-Dichloropyrimidine
Also known as: 2,4-Dichlorpyrimidin, 2,4-dichloro-pyrimidin, 2,4-dichloro-pyrimidine, 2,4-DICHLOROPYRIMIDINE, 2,4-DICHLORO PYRIMIDINE, NSC 49119, NSC 37531, AI3-26561, NSC 20212, AKOS 91058, MFCD00006061, EINECS 223-508-6, Pyrimidine, 2,4-dichloro-
2,4-Dichloropyrimidine (CAS 3934-20-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4H2Cl2N2 and a molecular weight of 148.978 g/mol. Key properties include a melting point of 57-61 °C(lit.), a boiling point of 209.1±0.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 104.3±5.4 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 3934-20-1
- Jingsj CID
- J-1090332-9
- Molecular Formula
- C4H2Cl2N2
- Molecular Weight
- 148.978 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 57-61 °C(lit.) |
|---|---|
| Boiling Point | 209.1±0.0 °C at 760 mmHg |
| Density | 1.5±0.1 g/cm3 |
| Flash Point | 104.3±5.4 °C |
| Exact Mass | 147.959503 |
| PSA | 25.78000 |
| LogP | 1.15 |
| Vapor Pressure | 0.3±0.4 mmHg at 25°C |
| Refractive Index | 1.559 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
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 2,4-Dichloropyrimidine?
The CAS number of 2,4-Dichloropyrimidine is 3934-20-1.
What are the molecular formula and molecular weight of 2,4-Dichloropyrimidine?
2,4-Dichloropyrimidine has molecular formula C4H2Cl2N2 and molecular weight 148.978 g/mol.
Is 2,4-Dichloropyrimidine hazardous?
2,4-Dichloropyrimidine has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
What are the upstream and downstream products of 2,4-Dichloropyrimidine?
For 2,4-Dichloropyrimidine, Upstream Products: Uracil, 4-Chloro-2-(methylthio)pyrimidine, (Chloromethylene)dimethyliminium chloride; Downstream Products: 2,4-Dimethoxypyrimidine, 2-Chloro-4-methoxypyrimidine, 4-Chloro-2-methoxypyrimidine.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2,4-Dichloropyrimidine (CAS 3934-20-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1090332-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.