Tylosin tartrate - Reference Spectrum

Tyrosine

Tyrothricin

Ubidecarenone

Ubidecarenone for system suitability

Ubidecarenone impurity D - 5,6-dimethoxy-3-methyl-2-[(all-E)-3,7,11,15,19,23,27,31,35-nonamethylhexatriaconta-2,6,10,14,18,22,26,30,34-nonaenyl]benzene-1,4-dione

Uncaria stem with hooks dry extract for system suitability

Uracil arabinoside

Urea

Ursodeoxycholic acid