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tetramethyl lead
tetrametil plumb

tml tetramethyl lead,
tmp tetrametil de plumb;

tetramethyl lead and tetraethyl lead
tetrametil de plumb și tetraetil de plumb

tritc tetramethyl-rhodamine-isothiocyanate
tritc tetrametil-rodamin-izotiocianat

tetramethyl ethylcyclohexenone (mixture of isomers)
tetrametil etilciclohexenonă (amestec de izomeri)

n,n,n′,n′-tetramethyl-4,4′-methylendianiline
n,n,n′,n′-tetrametil-4,4′-metilendianilină

n,n,n′,n′-tetramethyl-2,2′-oxybis(ethylamine)
n,n,n′,n′-tetrametil-2,2′-oxibis(etilamină)

kovacs'oxidase reagent 1 % aqueous solution of tetramethyl paraphenylenediamine dihydrochloride (bdh no 30386) in distilled water.
reactivul oxidazei kovacs 1 % soluție apoasă de dihidroclorură de tetrametil parafenilenediamin (bdh nr. 30386) în apă distilată.

1,5,5,9-tetramethyl-13-oxatricyclo [8.3.0.0.(4.9)]tridecane
1,5,5,9-tetrametil-13-oxatriciclo[8.3.0.0.(4.9)]tridecan

n,n'-bis(2,2,6,6-tetramethyl-4-piperidyl)-n,n'-diformylhexamethylenediamine
n,n’-bis(2,2,6,6-tetrametil-4-piperidil)-n,n’-diformilhexametilendiamina

2,5,7,8-tetramethyl-2-(4-nitrophenoxymethyl)-4-oxochroman-6-yl acetate
acetat de 2,5,7,8-tetrametil-2-(4-nitrofenoximetil)-4-oxocroman-6-il

poly[1-(2′-hydroxyethyl)-2,2,6,6-tetramethyl-4-hydroxy-piperidylsuccinate]
poli[1-(2′-hidroxietil)-2,2,6,6-tetrametil-4-hidroxi-piperidilsuccinat]

rac-(2r)-2,5,7,8-tetramethyl-2-[(4r,8r)-4,8,12-trimethyltridecyl]chroman-6-yl (inncn)
rac-(2r)-2,5,7,8-tetrametil-2-[(4r,8r)-4,8,12-trimetiltridecil]croman-6-il (dcidc)