Talk:Ponceau 4R

Ponceau 4R in everyday items
Shouldn't there be mention of where this substance is actually used. eg. Coca-Cola products? martiens (talk) 08:01, 30 December 2010 (UTC)

Ponceau 4R as a carcinogen
This is a fairly controversial claim, and as such, "Ponceau 4R has been proven to cause cancer" isn't good enough. Proven by whom? And when? Cites are required.

I had a look around on PubMed, but it wasn't particularly helpful. Is the chemical teratogenic? Genotoxic? Carcinogenic? No. Yes. Maybe.

Various studies:       Potatojunkie 07:25, 24 November 2005 (UTC)

So out of 6 studies, only one showed any carcinogenic effects. But what amounts would it require in humans to be harmful. If a child ate a biscuit which had a tiny drop of food colouring would they get cancer. I doubt it. Would they have to eat a biscuit every hour of every day to get any effect (ignoring the obesity issue of eating so much). 79.70.81.139 (talk) 20:38, 6 May 2013 (UTC)

New UK government report shows link to hyperactivity in childern
Take a look at these two articles in the newspaper The Daily Telegraph. Would be nice to have them integrated in the article. MaxPont 21:02, 10 May 2007 (UTC)

This article needs cleanup
This article makes many claims without citation, and most of the citations that are provided are just newspaper articles. As usual, the newspaper articles are not clear proofs of anything. In some cases, even when there is a citation, the citation actually makes no mention of the claim that is supposedly being proven.

This article needs some serious cleanup. Unfortunately, that will be very difficult. There are many people who are very emotional about the issue of food colorings. They will likely wreck any good cleanup work that is done here, unless Wikipedia standards are somehow enforced here. —Preceding unsigned comment added by Ygale (talk • contribs) 10:39, 19 November 2007 (UTC)

The follow up study by the EFSA can be found here. It does support the finding of the original UK study with the exception of two (significant places). Someone with a bit more knowledge on the subject should look into this article: link Assessment of the results of the study by McCann et al. (2007) on the effect of some colours and sodium benzoate on children’s behaviour (1) - Scientific Opinion of the Panel on Food Additives, Flavourings, Processing Aids and Food Contact Materials (AFC) —Preceding comment added by Shirag 13:07, 25 October 2008 (UTC) —Preceding unsigned comment added by 99.253.213.242 (talk)

WikiProject Food and drink Tagging
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IUPAC name ...???
Please kindly provide it, if you know. Since naming of the chemical using nomenclature rule books is time consuming, the nomenclature expertise is needed here--222.64.221.205 (talk) 00:35, 26 July 2009 (UTC)

Verification is needed for the following http://www.chemicalregister.com/Ponceau_4R/Suppliers/pid21367.htm

because I used their info for this article--222.64.221.205 (talk) 00:53, 26 July 2009 (UTC)

The chinese translation of the chemicals are based on the following....
--222.67.211.50 (talk) 04:21, 6 February 2010 (UTC)
 * http://www.ziq.gov.cn/portal/webfiles/web/file/12602335297448450.pdf

--222.67.211.50 (talk) 04:24, 6 February 2010 (UTC)
 * http://sms.mofcom.gov.cn/table/b06.pdf

Verification of E number of the chemical....

 * Talk:Tartrazine —Preceding unsigned comment added by 222.67.211.50 (talk) 04:33, 6 February 2010 (UTC)

The history of the food additive
--222.67.211.50 (talk) 04:39, 6 February 2010 (UTC)
 * http://scholar.google.com/scholar?hl=en&q=Ponceau+4R+E124&btnG=Search&as_sdt=2000&as_ylo=1982&as_yhi=1985&as_vis=0
 * http://scholar.google.com/scholar?hl=en&q=Ponceau+4R+E124&btnG=Search&as_sdt=2000&as_ylo=1986&as_yhi=1987&as_vis=0

Name
Article needs to explain the name. 121a0012 (talk) 03:49, 21 January 2012 (UTC)


 * Done. Softlavender (talk) 07:18, 19 April 2012 (UTC)