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The phonotactic constraints of English will strictly circumscribe what the pronunciation of your brand name is (so, for example /sdæ/ will be impossible, but /stɑ:/ would be perfectly fine). In addition, the conventions for the transcription of English are language-specific and not applicable to the phonemic transcription of other languages. So long as your ...
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Of course, in general, questions about pronunciation notations and their correspondence with actual pronunciation are on-topic.
But you question could easily be off-topic for other reasons, eg 'How do you pronounce this word I made up?' is considered off-topic.
Your question seems to be somewhere in the middle. To make it more on-topic, you'll want to ...
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Forvo.com is a crowd-sourced "pronouncing dictionary" that aims to have recordings of pronunciations for every word in the world. It doesn't use IPA, but if you want to know how a word is pronounced there's no substitute for actually hearing it pronounced.
Forvo's coverage for English is very good, usually with recordings in multiple dialects for more ...
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OED.com
Online, yes. Free, no. But you may be able to get in via your library or another institution. (In my case, I don't pay for my subscription; my college does.)
The OED is a historical dictionary, meaning that there's a lot of information about the etymology. It has a really nice Advanced Search, which lets you sort by frequency:
Frequency is ...
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