Spiking Standard 5 Back Catalog number: 53071 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 53023 Contract Required Detection Limits (CRI) Mix 2 Price on request V097200 Vanillactic Acid, 100mg Price on request 9987.8-100-ME N-Acetyl-S-(carbamoylethyl-d4)-L-cysteine , 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 81690-92-8 (unlabelled compound) Price on request