Please do not overwrite the files created by other users. You uploaded not "a new version of this file" but "a different file". In this case, you can save it in different file name (such as "Xylitol2.png", "xylitol.png" ...etc).

Being sorry for my poor EngRish. -- D.328 16:58, 22 August 2006 (UTC)Reply

Images presents same molecues, but I want to add few more (erythritol, xylitol, mannitol, sorbitol, perseitol, volemitol, beta-sedoheptiol). We can rename them to compound_fischer.png if You want and recover older versions. chemmix 17:44, 22 August 2006 (UTC)Reply
Thanks for renaming. :-]
Same molecules but different works, I think. Overwriting a file could cause problems in articles' layout and explanations (, also I think). -- D.328 07:54, 23 August 2006 (UTC)Reply


Image Tagging Image:Nitrated_tryptophane.svg edit

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This media may be deleted.

Thanks for uploading Image:Nitrated_tryptophane.svg. I notice the image page currently doesn't specify who created the content, so the copyright status is unclear. If you have not created this media yourself then you need to argue that we have the right to use the media on Wikimedia Commons (see copyright tagging below). If you have not created the media yourself then you should also specify where you found it, i.e., in most cases link to the website where you got it, and the terms of use for content from that page. If the content is a derivative of a copyrighted work, you need to supply the names and a licence of the original authors as well.

If the media also doesn't have a copyright tag, then you must also add one. If you created/took the picture, audio, or video then you can use {{self|cc-by-sa-2.5}} to release it under the Creative Commons Attribution-ShareAlike license or {{PD-self}} to release it into the public domain. See Commons:Copyright tags for the full list of copyright tags that you can use.

Note that any unsourced and untagged images will be deleted one week after they have been uploaded, as described on criteria for speedy deletion. If you have uploaded other media, please check that you have specified their source and copyright tagged them, too. You can find all your uploads using the Gallery tool. Thank you. odder 15:23, 22 April 2007 (UTC)Reply

File:Erythritol.png edit

 
File:Erythritol.png has been listed at Commons:Deletion requests so that the community can discuss whether it should be kept or not. We would appreciate it if you could go to voice your opinion about this at its entry.

If you created this file, please note that the fact that it has been proposed for deletion does not necessarily mean that we do not value your kind contribution. It simply means that one person believes that there is some specific problem with it, such as a copyright issue. Please see Commons:But it's my own work! for a guide on how to address these issues.

Please remember to respond to and – if appropriate – contradict the arguments supporting deletion. Arguments which focus on the nominator will not affect the result of the nomination. Thank you!

DMacks (talk) 02:48, 12 April 2012 (UTC)Reply

File:Trioxane syntesis.svg edit

 
File:Trioxane syntesis.svg has been listed at Commons:Deletion requests so that the community can discuss whether it should be kept or not. We would appreciate it if you could go to voice your opinion about this at its entry.

If you created this file, please note that the fact that it has been proposed for deletion does not necessarily mean that we do not value your kind contribution. It simply means that one person believes that there is some specific problem with it, such as a copyright issue. Please see Commons:But it's my own work! for a guide on how to address these issues.

Please remember to respond to and – if appropriate – contradict the arguments supporting deletion. Arguments which focus on the nominator will not affect the result of the nomination. Thank you!

Outslider (talk) 16:12, 31 March 2014 (UTC)Reply

File:Xylitol.png edit

 
File:Xylitol.png has been listed at Commons:Deletion requests so that the community can discuss whether it should be kept or not. We would appreciate it if you could go to voice your opinion about this at its entry.

If you created this file, please note that the fact that it has been proposed for deletion does not necessarily mean that we do not value your kind contribution. It simply means that one person believes that there is some specific problem with it, such as a copyright issue. Please see Commons:But it's my own work! for a guide on how to address these issues.

Please remember to respond to and – if appropriate – contradict the arguments supporting deletion. Arguments which focus on the nominator will not affect the result of the nomination. Thank you!

Leyo 20:14, 25 April 2014 (UTC)Reply

Copyright status: File:Tau4 and tau4prime parameters for selected geometries.gif edit

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This media may be deleted.
Thanks for uploading File:Tau4 and tau4prime parameters for selected geometries.gif. I notice that the file page either doesn't contain enough information about the license or it contains contradictory information about the license, so the copyright status is unclear.

If you created this file yourself, then you must provide a valid copyright tag. For example, you can tag it with {{self|GFDL|cc-by-sa-all}} to release it under the multi-license GFDL plus Creative Commons Attribution-ShareAlike All-version license or you can tag it with {{PD-self}} to release it into the public domain. (See Commons:Copyright tags for the full list of license tags that you can use.)

If you did not create the file yourself or if it is a derivative of another work that is possibly subject to copyright protection, then you must specify where you found it (e.g. usually a link to the web page where you got it), you must provide proof that it has a license that is acceptable for Commons (e.g. usually a link to the terms of use for content from that page), and you must add an appropriate license tag. If you did not create the file yourself and the specific source and license information is not available on the web, you must obtain permission through the VRT system and follow the procedure described there.

Note that any unsourced or improperly licensed files will be deleted one week after they have been marked as lacking proper information, as described in criteria for deletion. If you have uploaded other files, please confirm that you have provided the proper information for those files, too. If you have any questions about licenses please ask at Commons:Village pump/Copyright or see our help pages. Thank you.

No required license templates were detected at this file page. Please correct it, or if you have any questions please check my FAQ or contact me on my talk page. Yours sincerely, Jarekt (talk) 15:39, 1 June 2015 (UTC)Reply

File:Glycol Fischer.png edit

 
File:Glycol Fischer.png has been listed at Commons:Deletion requests so that the community can discuss whether it should be kept or not. We would appreciate it if you could go to voice your opinion about this at its entry.

If you created this file, please note that the fact that it has been proposed for deletion does not necessarily mean that we do not value your kind contribution. It simply means that one person believes that there is some specific problem with it, such as a copyright issue. Please see Commons:But it's my own work! for a guide on how to address these issues.

Please remember to respond to and – if appropriate – contradict the arguments supporting deletion. Arguments which focus on the nominator will not affect the result of the nomination. Thank you!

Leyo 22:17, 27 December 2015 (UTC)Reply