delta-Valerolactam Back Catalog number: 73544 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 73935 4-Acetamidoantipyrine, 1000µg/ml in MeOH, 1ml Price on request 0653.40-500-IO Lycopane, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 45316-02-7 Price on request 3291.21-K-IO Methyl 8-cis-eicosenoate , 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 69119-99-9 Price on request