GLC determination of theophylline in biological fluids

✍ Scribed by Vinod P. Shah; S. Riegelman

• Publisher: John Wiley and Sons
• Year: 1974
• Tongue: English
• Weight: 321 KB
• Volume: 63
• Category: Article
• ISSN: 0022-3549
• DOI: 10.1002/jps.2600630826

✦ Synopsis

ping m, methylenes and methines), 3.59 (s, 3H, vinyl methoxy), 3.64 and 3.66 (as, 3H total, carbomethoxy), 3.72 (d, lH, J = about 10 Hz, benzylic proton on C-41, 5.00 (s, lH, vinyl), 5.82 (s and an indistinct overlapping signal, 2H plus lH, methylenedioxy and proton on C-3), and 6. 64 and 6.67 (2s, 1H each, aromatic). Its mass spectrum showed significant ions at m/e 499 (M+, 40), 469 (12), 314 (19), 298 (100).