7-Bromoquinazoline-2,4-diamine
7-溴-2,4-二氨基喹唑啉
Also known as: 7-Bromo-2,4-diaminoquinazoline, 7-Bromo-2,4-quinazolinediamine, 2,4-Quinazolinediamine, 7-bromo-, DHFR-IN-3, Aids007525, Aids-007525
7-Bromoquinazoline-2,4-diamine (CAS 137553-43-6) is a compound in the Organohalogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C8H7BrN4 and a molecular weight of 239.072 g/mol. It is also known as 7-Bromo-2,4-diaminoquinazoline, 7-Bromo-2,4-quinazolinediamine and 2,4-Quinazolinediamine, 7-bromo-. Key properties include a melting point of 255-256°C, a boiling point of 509.4±58.0 °C at 760 mmHg, a density of 1.8±0.1 g/cm3 and a flash point of 261.9±32.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 137553-43-6
- Jingsj CID
- J-1962971-5
- Molecular Formula
- C8H7BrN4
- Chinese Name
- 7-溴-2,4-二氨基喹唑啉
- Molecular Weight
- 239.072 g/mol
- Category
- Organohalogen Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 255-256°C |
|---|---|
| Boiling Point | 509.4±58.0 °C at 760 mmHg |
| Density | 1.8±0.1 g/cm3 |
| Flash Point | 261.9±32.3 °C |
| Exact Mass | 237.985397 |
| PSA | 77.82000 |
| LogP | 1.73 |
| Vapor Pressure | 0.0±1.3 mmHg at 25°C |
| Refractive Index | 1.811 |
| Storage Conditions | 2-8°C |
Activity & Biological Data
| Additional Information | [1]. A Rosowsky, et al. Structure-activity and structure-selectivity studies on diaminoquinazolines and other inhibitors of Pneumocystis carinii and Toxoplasma gondii dihydrofolate reductase. Antimicrob Agents Chemother. 1995 Jan;39(1):79-86. |
|---|
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 7-Bromoquinazoline-2,4-diamine?
The CAS number of 7-Bromoquinazoline-2,4-diamine is 137553-43-6.
What are the molecular formula and molecular weight of 7-Bromoquinazoline-2,4-diamine?
7-Bromoquinazoline-2,4-diamine has molecular formula C8H7BrN4 and molecular weight 239.072 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "7-Bromoquinazoline-2,4-diamine (CAS 137553-43-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1962971-5 (accessed 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.