EPA Method 502.2 Internal Standard

Nitrosamines - Mix 9, 100μg/ml in MeOH, 5ml

3-Methoxytyramine-d4 hydrochloride,neat,neat,10mg,

4,5-Dichloroguaiacol , 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 2460-49-3