trans-Urocanic acid, 100mg

Ethanol standard in serum,1.5g/L,serum, 1.5mL

Acids Calibration Level 4

d3 C21Monoaromatic Sterane (5 alpha(H)/5ß(H)), 10µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no.