CAS No 58-08-2

IUPAC 1,3,7-Trimethyl-3,7-dihydro-1H-purine-2,6-dione 

Catalogue No. PACE-C01001

Molecular Formula C₈H₁₀N₄O₂

Molecular Weight 194.2 g/mol

Synonyms Theophylline EP Impurity A , Pentoxifylline EP Impurity F

CAS No 58-55-9

IUPAC 1,3-Dimethyl-3,7-dihydro-1H-purine-2,6-dione

Catalogue No. PACE-C01002

Molecular Formula C₇H₈N₄O₂

Molecular Weight 180.2 g/mol

Synonyms Theophylline

CAS No 7597-60-6

IUPAC N-(6-Amino-1,3-dimethyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)formamide

Catalogue No. PACE-C01003

Molecular Formula C₇H₁₀N₄O₃

Molecular Weight 198.2 g/mol

Synonyms Theophylline USP Related Compound C

CAS No 83-67-0

IUPAC 3,7-Dimethyl-3,7-dihydro-1H-purine-2,6-dione

Catalogue No. PACE-C01005

Molecular Formula C₇H₈N₄O₂

Molecular Weight 180.2 g/mol

Synonyms Theobromine