January 25, 2021, 02:12:36 AM
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Topic: Are these all thiols?  (Read 225 times)

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Offline vetstudentizzy

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Are these all thiols?
« on: January 06, 2021, 06:33:20 AM »
Hello,

I've recently had a chemistry test, one of the questions asked "which of these are not thiols?", and the given answers were:

2,3-dimercaptopropanol
cysteine
coenzyme A
glutathione

I thought they were all thiols?!

Online chenbeier

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Re: Are these all thiols?
« Reply #1 on: January 06, 2021, 11:08:33 AM »
The 2 second ones have cysteine in their peptidchain. Threfore  there all of Thiolgroups.

Offline vetstudentizzy

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Re: Are these all thiols?
« Reply #2 on: January 06, 2021, 12:22:40 PM »
Thank you for the reply, that's what I thought too.

The question asked which ones are not a thiol so I was wondering if any of them could be argued to be "not a thiol"...

Maybe it was a trick question. Just feels weird to have a MCQ that requires none of the answers to be checked!

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