Method 1640 Tuning Standard Back Catalog number: 52147 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2123.12-100-T 2-Hydroxydibenzothiophene, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 22439-65-2 Price on request 73437 4-n-Nonylphenol-2,3,5,6-d4,OD Price on request 32191 1,2-Dichlorobenzene Price on request