Metoprine

氯苯氨啶

Also known as: 2,4-DIAMINO-5-(3,4-DICHLOROPHENYL)-6-METHYLPYRIMIDINE, 5-(3,4-Dichlorophenyl)-6-methylpyrimidine-2,4-diamine, BW 197U, BW-197U, DDMP, Methodichlorophen, NSC 7364, SK 5265, 2aov

Metoprine (CAS 7761-45-7) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C11H10Cl2N4 and a molecular weight of 269.13000 g/mol. It is also known as 2,4-DIAMINO-5-(3,4-DICHLOROPHENYL)-6-METHYLPYRIMIDINE, 5-(3,4-Dichlorophenyl)-6-methylpyrimidine-2,4-diamine and BW 197U. Key properties include a melting point of 275-276ºC, a boiling point of 483.7ºC at 760 mmHg, a density of 1.447g/cm3 and a flash point of 246.3ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 7761-45-7
Jingsj CID: J-735-5
Molecular Formula: C₁₁H₁₀Cl₂N₄
Chinese Name: 氯苯氨啶
Molecular Weight: 269.13000 g/mol
Category: Aromatic Hydrocarbons
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	275-276ºC
Boiling Point	483.7ºC at 760 mmHg
Density	1.447g/cm3
Flash Point	246.3ºC
Exact Mass	268.02800
PSA	77.82000
LogP	4.08560
Refractive Index	1.678

Activity & Biological Data

Additional Information	[1]. Junichi Kitanaka, et al. Brain Histamine N-Methyltransferase As a Possible Target of Treatment for Methamphetamine Overdose. Drug Target Insights. 2016 Mar 2;10:1-7. [2]. Zhong Chen, et al. Effects of brain histamine on memory deficit induced by nucleus basalis-lesion in rats. Acta Pharmacol Sin. 2002 Jan;23(1):66-70. [3]. John R Horton, et al. Structural basis for inhibition of histamine N-methyltransferase by diverse drugs. J Mol Biol. 2005 Oct 21;353(2):334-344.

Additional Information

[1]. Junichi Kitanaka, et al. Brain Histamine N-Methyltransferase As a Possible Target of Treatment for Methamphetamine Overdose. Drug Target Insights. 2016 Mar 2;10:1-7. [2]. Zhong Chen, et al. Effects of brain histamine on memory deficit induced by nucleus basalis-lesion in rats. Acta Pharmacol Sin. 2002 Jan;23(1):66-70. [3]. John R Horton, et al. Structural basis for inhibition of histamine N-methyltransferase by diverse drugs. J Mol Biol. 2005 Oct 21;353(2):334-344.

Frequently Asked Questions

What is the CAS number of Metoprine?

The CAS number of Metoprine is 7761-45-7.

What are the molecular formula and molecular weight of Metoprine?

Metoprine has molecular formula C11H10Cl2N4 and molecular weight 269.13000 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "Metoprine (CAS 7761-45-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-735-5 (accessed 2026-10-28).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.