I purchased some 12-2 wire the hardware store a few years ago. I am now running wire from a 20amp breaker to a microwave. The wire I purchased says type NM-B 12-2 with
Ground 600 volts cirtex-1 (UL) other various numbers and letters. What bothers me is it is yellow and says bed bath. Is there some reason I can't wire the kitchen with it?

Yes, you can use it for a kitchen, or anywhere #12-2 is needed.


The data sheet:

http://www.cerrowire.com/files/file/49223_CERRO_NMBPortable_LR.pdf

Mentions bedroom, as an example where it can be used.

Yellow denotes that it is #12 cable, to help inspectors.