Custom Mix of deuterated alkylphenols 2279.6 Phenol-d5 1500µg/mL 2280.7 4-Methylphenol-d8 1000µg/mL 2396.8 2,4-Dimethylphenol-3,5,6-d3 750µg/mL 2348.9 4-n-Propylphenol-d12 500µg/mL