Custom Mix Back Catalog number: 59642 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 92572 ISTD/Surrogate Standard Price on request 71375 4-tert-Butylphenol Price on request S-4569-8K-ET EN 15721 Internal Standard Stock Solution, procedure B 1382.2 Ethanol 16mL 8919.5 4-Methyl-2-pentanol 160µL Gives a concentration of approx. 8mg/mL Price on request