Multi-Element Solution 1 Back Catalog number: 50644 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended X9129 3-Methylcholanthrene Price on request 1025.X-100MG Purified asfalthenes from North Sea Oil,neat,neat,100mg, Price on request 0215.22-2MG Benzo[a]chrysene, neat, Solvent-neat, Unit 2mg, # of units-1, Cas.no. 213-46-7 Price on request