alkane with four carbon atoms

BUTANE
WordClue
GAScarbon dioxide
COALcarbon
OMANcountry with Muscat
QUADFour shots of espresso
CYCLEvicious or carbon
FIGHTwith pillow or knife
GUARDin prison or with honor
NIGERcountry with Niamey
STEELstainless or carbon
WAGONfour-wheeled cart for hauling loads
NIBBLEgroup of four bits
NORWAYcountry with Oslo
DIAMONDallotrope of carbon
NIGERIAcountry with Abuja
GRAPHITEallotrope of carbon
PAKISTANcountry with Islamabad
PARAGUAYcountry with Asunción
RECTANGLEquadrilateral with four right angles
SEMIFINALlast four
TESSERACTfour-dimensional analog of the cube
BASEalkali
MOTHERAll About My ... (film)