Why is sucralose also known as trichlorosucrose in nomenclature?

[Soaring Crane]

Why is sucralose also called trichlorosucrose? Is this alternate name correct in the nomenclature sense? Why are the positions of the chlorine atoms not indicated in “trichlorosucrose”, and why is it not indicated in this term that the molecule lacks OH groups on the respective carbons by including the term “deoxy”?

Thank you.

 

[Borek]

I would say the only correct name is (according to wikipedia, but I guess it doesn't matter much) 1,6-Dichloro-1,6-dideoxy-β-D-fructofuranosyl-4-chloro-4-deoxy-α-D-galactopyranoside - this is a systematic IUPAC name. Every other name is just a customary (or common - my English fails me here) name and looking for any logic behind is a waste of time. That is - there can be some logic, but there is no well defined, fail proof system.

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[John_5696]

Ok, the English you're referring to would be "trivial name"? Just for crying out loud.