Talk:Malachite green

From Wikipedia, the free encyclopedia
Jump to: navigation, search
WikiProject Chemicals (Rated Start-class, High-importance)
WikiProject icon This article is within the scope of WikiProject Chemicals, a daughter project of WikiProject Chemistry, which aims to improve Wikipedia's coverage of chemicals. To participate, help improve this article or visit the project page for details on the project.
Start-Class article Start  This article has been rated as Start-Class on the project's quality scale.
 High  This article has been rated as High-importance on the project's importance scale.

The CAS lookup link at NIST does not seem to work; either the CAS numbers are wrong or NIST does not have it in its database.

Cas numbers[edit]

I made a search on Beilstein with a structural search. The compound was known as "MalachitGruen" with CAS number: 10309-95-2. However, the compound was not on the CAS database either. I removed the external links because they were broken and no longer relevant. The naming system of the forms of malachite green was based on the journal articles in the sources.

IUPAC name[edit]

The IUPAC name quoted in the existing article doesn't make sense as stated because it doesn't account for the methylene moiety, so I checked on it. According to the Merck Index, the correct Chemical Abstracts Service (CAS)name for malachite green, which seems more logical to me, is:

N-[4-[[4-(Dimethylamino)-phenyl]phenylmethylene]-2,5-cyclohexadien-1-ylidene]-N-methylmethanaminium chloride

Merck also list the CAS number as: [569-64-2], which confirms that shown in the article.

A citation needed for Leucomalachite green as a presumptive test for blood.[edit]

This page talks about the standard method of using leucomalachite green to detect blood. Specifically, you can't spray it around like you can luminol - the peroxide has to be added to the swab as a separate step. I was just watching a forensic files where they misused it.

The above is a lab SOP from a US Government site called "The DNA Initiative" (Site Root available through I am going to try and add this as an external link and as a citation. If I am unable to do so properly perhaps someone else can, using this information. —Preceding unsigned comment added by Simicich (talkcontribs) 21:01, 8 July 2010 (UTC) Simicich (talk) 21:03, 8 July 2010 (UTC)

External links modified[edit]

Hello fellow Wikipedians,

I have just modified one external link on Malachite green. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:

When you have finished reviewing my changes, please set the checked parameter below to true or failed to let others know (documentation at {{Sourcecheck}}).

You may set the |checked=, on this template, to true or failed to let other editors know you reviewed the change. If you find any errors, please use the tools below to fix them or call an editor by setting |needhelp= to your help request.

  • If you have discovered URLs which were erroneously considered dead by the bot, you can report them with this tool.
  • If you found an error with any archives or the URLs themselves, you can fix them with this tool.

If you are unable to use these tools, you may set |needhelp=<your help request> on this template to request help from an experienced user. Please include details about your problem, to help other editors.

Cheers.—InternetArchiveBot (Report bug) 15:30, 11 November 2016 (UTC)

Proposed merge with Malachite Green Test[edit]

This page is unreferenced, yet appears to be a genuine test. It does not seem sufficiently notable to warrant a separate page, but is relevant to the main Malachite Green page. Parkywiki (talk) 16:15, 27 December 2016 (UTC)