2-chloro-5-nitropyrimidin-4-amine
Also known as: 4-Amino-2-chloro-5-nitropyrimidine, 2-Chloro-5-nitro-4-pyrimidinamine, 2-chloro-5-nitro-pyrimidin-4-ylamine, 2-chloro-4-amino-5-nitro-pyrimidine, 4-amino-5-nitro-2-chloropyrimidine, 2-Chloro-5-nitropyrimidin-4-amine, 4-Pyrimidinamine, 2-chloro-5-nitro-, NSC 40838, EINECS 217-648-7, MFCD00127771
2-chloro-5-nitropyrimidin-4-amine (CAS 1920-66-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4H3ClN4O2 and a molecular weight of 174.545 g/mol. Key properties include a melting point of 221-226ºC, a boiling point of 446.0±25.0 °C at 760 mmHg, a density of 1.7±0.1 g/cm3 and a flash point of 223.5±23.2 °C. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 1920-66-7
- Jingsj CID
- J-7310-9
- Molecular Formula
- C4H3ClN4O2
- Molecular Weight
- 174.545 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 221-226ºC |
|---|---|
| Boiling Point | 446.0±25.0 °C at 760 mmHg |
| Density | 1.7±0.1 g/cm3 |
| Flash Point | 223.5±23.2 °C |
| Exact Mass | 173.994446 |
| PSA | 97.62000 |
| LogP | 1.94 |
| Appearance | Solid |
| Vapor Pressure | 0.0±1.1 mmHg at 25°C |
| Refractive Index | 1.671 |
| Additional Property | Slightly soluble in water. |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H334 — May cause allergy or asthma symptoms if inhaled
- 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-chloro-5-nitropyrimidin-4-amine?
The CAS number of 2-chloro-5-nitropyrimidin-4-amine is 1920-66-7.
What are the molecular formula and molecular weight of 2-chloro-5-nitropyrimidin-4-amine?
2-chloro-5-nitropyrimidin-4-amine has molecular formula C4H3ClN4O2 and molecular weight 174.545 g/mol.
Is 2-chloro-5-nitropyrimidin-4-amine hazardous?
2-chloro-5-nitropyrimidin-4-amine has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H319 — Causes serious eye irritation.
What are the upstream and downstream products of 2-chloro-5-nitropyrimidin-4-amine?
For 2-chloro-5-nitropyrimidin-4-amine, Upstream Products: 2,4-Dichloro-5-nitropyrimidine, Ammonia; Downstream Products: 4,5-diamino-2-mercaptopyrimidine, 4,5-Diaminopyrimidine, 2-Chloro-4,5-diaminopyrimidine.
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-chloro-5-nitropyrimidin-4-amine (CAS 1920-66-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-7310-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.