Chromatography Standards
TraceCERT™ N-Nitrosodimethylamine Solution, 200 μg/mL in Methanol, MilliporeSigma™ Supelco™
N-Nitrosodimethylamine is a toxic type of N-nitrosamine, which can be commonly synthesized in vivo by intestinal microbiota type of microorganisms. It can undergo reduction to form dimethylamine using zero-valent metal ions like Fe and Zn in the presence of Cu(II) ions.
Dimethyl trisulfide, ≥98.5% (GC), MilliporeSigma™ Supelco™
Dimethyl trisulfide is a potent odor active compound, which is found to be volatile in nature. It may be obtained via Strecker degradation of methionine under thermal conditions or from dimethyl disulfide.
ASTM™ D2887 Calibration Mix Analytical Standard, Sold by MilliporeSigma™ Supelco™
Aroclor 1248 is a light yellow to yellow-green colored, commercially available polychlorinated biphenyl product liquid mixture. It consists of tri-, tetra-, and pentachloro congeners.
Piperacillin Pharmaceutical Secondary Standard, MilliporeSigma™ Supelco™
Pharmaceutical secondary standards for application in quality control provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards
(±)-Naringenin, ≥95% (TLC), MilliporeSigma™ Supelco™
(+/-)-Naringenin is a naturally occurring plant bioflavonoid present in orange and grape type of citrus fruit juices, which can exhibit pharmacological properties like anti-carcinogenic, estrogenic and anti-oxidative.