Mixed Calibration Standard 4

Metoprolol tartrate, neat, Solvent-neat, Unit 250mg, # of units-1, Cas.no. 56392-17-7

2-Thiocyanomethylthiobenzothiazole

Aromatics Calibration Standards Kit (3 Internal Standard Version) 24 Analytes + 3 ISTD, each Vol.% as listed in isooctane; unit: 5x1mL Set, one of each Std. 1- 5 + opt. 1x1mL (Std. 6) To these calibration standards are 3 fluorinated Internal Standard