Title: Acefylline
CAS Registry Number: 652-37-9
CAS Name: 1,2,3,6-Tetrahydro-1,3-dimethyl-2,6-dioxopurine-7-acetic acid
Additional Names: carboxymethyltheophylline; 7-theophyllineacetic acid
Molecular Formula: C9H10N4O4
Molecular Weight: 238.20
Percent Composition: C 45.38%, H 4.23%, N 23.52%, O 26.87%
Literature References: Prepn: DE 352980 (1922 to E. Merck); Frdl. 14, 1320; S. M. Ride et al., Pharmazie 32, 672 (1977). Prepn of salts: J. Baisse, Bull. Soc. Chim. Fr. 1949, 769; M. Milletti, F. Virgili, Chimica 6, 394 (1951), C.A. 46, 8615h (1952). GC determn in urine: J. Zuidema, H. Hilbers, J. Chromatogr. 182, 445 (1980). HPLC determn in serum and pharmacokinetics: S. Sved et al., Biopharm. Drug Dispos. 2, 177 (1981).
Properties: Crystals from water, mp 271°.
Melting point: mp 271°
Derivative Type: Sodium salt
CAS Registry Number: 837-27-4
Molecular Formula: C9H9N4NaO4
Molecular Weight: 260.18
Percent Composition: C 41.55%, H 3.49%, N 21.53%, Na 8.84%, O 24.60%
Properties: Silky needles, mp >300°.
Melting point: mp >300°
Derivative Type: Compd with piperazine
Additional Names: Acefylline piperazine; acepifylline
Trademarks: Dynaphylline (Welcker-Lyster); Etaphylline (Delalande); Etafillina (Delalande)
Properties: Undefined mixture of the 1:1 and 2:1 salts; contains 75-78% theophylline acetic acid and 22-25% anhydrous piperazine.
Therap-Cat: Bronchodilator.
Keywords: Bronchodilator; Xanthine Derivatives. |