2,4-Dichloro-6,7-dihydro-5H-cyclopenta[d]pyrimidine
2,4-二氯-6,7-二氢-5H-环戊并[d]嘧啶
Also known as: 2,4-Dichloro-5,6-trimethylenepyrimidine, 2,4-Dichloro-5H,6H,7H-cyclopenta[d]pyrimidine, 2,4-Dichloro-6,7-dihydro-5H-cyclopenta[d][1,3]chlorazine, 5H-Cyclopenta[d]pyrimidine, 2,4-dichloro-6,7-dihydro-, 2,4-dichloro-5H,6H,7H-cyclopenta[d]pyrimidine
2,4-Dichloro-6,7-dihydro-5H-cyclopenta[d]pyrimidine (CAS 5466-43-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H6Cl2N2 and a molecular weight of 189.042 g/mol. It is also known as 2,4-Dichloro-5,6-trimethylenepyrimidine, 2,4-Dichloro-5H,6H,7H-cyclopenta[d]pyrimidine and 2,4-Dichloro-6,7-dihydro-5H-cyclopenta[d][1,3]chlorazine. Key properties include a melting point of 70-72ºC, a boiling point of 306.7±42.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 168.1±13.5 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 5466-43-3
- Jingsj CID
- J-1506240-8
- Molecular Formula
- C7H6Cl2N2
- Chinese Name
- 2,4-二氯-6,7-二氢-5H-环戊并[d]嘧啶
- Molecular Weight
- 189.042 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 70-72ºC |
|---|---|
| Boiling Point | 306.7±42.0 °C at 760 mmHg |
| Density | 1.5±0.1 g/cm3 |
| Flash Point | 168.1±13.5 °C |
| Exact Mass | 187.990799 |
| PSA | 25.78000 |
| LogP | 2.28 |
| Vapor Pressure | 0.0±0.6 mmHg at 25°C |
| Refractive Index | 1.605 |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H319 — Causes serious eye irritation
Customs & Trade Information
| HS Code | 2933990090 |
|---|---|
| Summary | 2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. 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-Dichloro-6,7-dihydro-5H-cyclopenta[d]pyrimidine?
The CAS number of 2,4-Dichloro-6,7-dihydro-5H-cyclopenta[d]pyrimidine is 5466-43-3.
What are the molecular formula and molecular weight of 2,4-Dichloro-6,7-dihydro-5H-cyclopenta[d]pyrimidine?
2,4-Dichloro-6,7-dihydro-5H-cyclopenta[d]pyrimidine has molecular formula C7H6Cl2N2 and molecular weight 189.042 g/mol.
Is 2,4-Dichloro-6,7-dihydro-5H-cyclopenta[d]pyrimidine hazardous?
2,4-Dichloro-6,7-dihydro-5H-cyclopenta[d]pyrimidine has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H319 — Causes serious eye irritation.
What are the upstream and downstream products of 2,4-Dichloro-6,7-dihydro-5H-cyclopenta[d]pyrimidine?
For 2,4-Dichloro-6,7-dihydro-5H-cyclopenta[d]pyrimidine, Upstream Products: 6,7-dihydro-1H-cyclopenta[d]pyrimidine-2,4(3H,5H)-dione, Ethyl 2-oxocyclopentanecarboxylate, Urea; Downstream Products: 2-chloro-6,7-dihydro-5H-cyclopenta[d]pyrimidine, 2-Chloro-N-methyl-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-amine, 4-Chloro-2-(methylthio)-6,7-dihydro-5H-cyclopenta[d]pyrimidine.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2,4-Dichloro-6,7-dihydro-5H-cyclopenta[d]pyrimidine (CAS 5466-43-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1506240-8 (accessed 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.