CLP Calibration Standard Back Catalog number: 52155 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended Q147 Fluorescent Brightener Agent OB-2 [4,4''-Bis(5-methyl-2-benzoxazolyl)stilbene], 97%, 5g Price on request 79233 Tetrachloro-m-xylene Price on request 9282.28-100-ME Sildenafil citrate,100 µg base/mL,MeOH,1mL Price on request