Talk:Malachite green

This article was the subject of a Wiki Education Foundation-supported course assignment, between 10 January 2022 and 27 April 2022. Further details are available on the course page. Student editor(s): Bbayliss2020 (article contribs).

Untitled

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.

Wiki Education Foundation-supported course assignment

This article was the subject of a Wiki Education Foundation-supported course assignment, between 3 September 2021 and 16 December 2021. Further details are available on the course page. Student editor(s): Paytonreiner.

Above undated message substituted from Template:Dashboard.wikiedu.org assignment by PrimeBOT (talk) 03:10, 17 January 2022 (UTC)[reply]

Cas numbers

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

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.

http://static.dna.gov/lab-manual/Linked%20Documents/Protocols/pdi_lab_pro_2.18.pdf

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 http://www.dna.gov). 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 (talk • contribs) 21:01, 8 July 2010 (UTC) Simicich (talk) 21:03, 8 July 2010 (UTC)[reply]

External links modified

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:

Added archive https://web.archive.org/web/20060618062627/http://www.cfsan.fda.gov:80/~frf/lib4363.html to http://www.cfsan.fda.gov/~frf/lib4363.html

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

This message was posted before February 2018. After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than regular verification using the archive tool instructions below. Editors have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the RfC before doing mass systematic removals. This message is updated dynamically through the template {{source check}} (last update: 5 June 2024).

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.

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

Proposed merge with Malachite Green Test

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)[reply]

External links modified

Hello fellow Wikipedians,

I have just modified 3 external links 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:

Added archive https://web.archive.org/web/20120211234825/http://www.vmd.defra.gov.uk/vrc/Reports/annual.htm to http://www.vmd.defra.gov.uk/vrc/Reports/annual.htm
Corrected formatting/usage for http://www.cfsan.fda.gov/~frf/lib4363.html
Added archive https://web.archive.org/web/20060620180149/http://www.advisorybodies.doh.gov.uk/com/malachit.htm to http://www.advisorybodies.doh.gov.uk/com/malachit.htm

When you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs.

This message was posted before February 2018. After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than regular verification using the archive tool instructions below. Editors have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the RfC before doing mass systematic removals. This message is updated dynamically through the template {{source check}} (last update: 5 June 2024).

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.

Cheers.—InternetArchiveBot (Report bug) 00:52, 31 May 2017 (UTC)[reply]