MA - VPH Matrix Spike #2 Rev 1.1 Back Catalog number: 93624 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 93543 EPA Method 8141 Standard Price on request 9137.19-1G Hexadecyltrimethylammonium bromide, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 57-09-0 Price on request 90950 n-Hexatriacontane Price on request