CHOLESTEROL (23,24,25,26,27-13C5, 99%) 100 UG/ML IN…

BENZO[J]FLUORANTHENE (13C12, 99%) 100 UG/ML IN NONA…

GLYPHOSATE (CHEMICAL PURITY 95%) (13C3, 99%; 15N, 9…

METHOMYL (97% CP) 100 UG/ML IN METHANOL (ACETOHYDR…

RDX (13C3, 99%; 15N3, 98%) 1 MG/ML IN ACETONITRILE…

MELAMINE 100 UG/ML IN WATER (13C3, 99%; AMINO-15N3…

FIPRONIL (3-CYANO,PYRAZOLE-3,4,5-13C4, 99%; 3-CYANO…

FIPRONIL SULFONE (3-CYANO,PYRAZOLE-3,4,5-13C4,99%; …

FIPRONIL SULFIDE(3-CYANO,PYRAZOLE-3,4,5-13C4,99%; …

FIPRONIL DESULFINYL(3-CYANO,PYRAZOLE-3,4,5- 13C4,99…