Does the commutative property not apply when multiplying Quaternions

Question

I've been looking up Quaternion multiplication and many resources have stated that
$j*k=i$
and also in other sources I've found
$k*j=-i$


But I have not found any sources stating
$j*k=-i$
and I also have not found any sources stating
$k*j=i$

I know this sounds like a dumb question, but does the commutative property of multiplication not apply when dealing with higher dimensional complex number systems?
$j*k≠k*j$       ?

Answer 1

Yes, quaternions multiplication is not commutative.

https://en.wikipedia.org/wiki/Quaternion

$ i \times j = k $

$ j \times i = -k $