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Alsachim offers you its expertise and know-how in isotope enrichment labeling (13C, 2H, 15N, 18O, 34S) to quantify your compounds by LC-MS/MS analysis. Our teams synthesize labeled internal standards and reference standards, as well as metabolites and building blocks.

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[reference-standards] Theophylline

Theophylline

Product Number: C2812

CAS number: 58-55-9

Synonyms: 3,9-Dihydro-1,3-dimethyl-1H-purine-2,6-dione