Caffeine EP impurity A

Jul 26,2023

Caffeine EP impurity A

Synonym: Theophylline;1,3-Dimethyl-3,7-dihydro-1H-purine-2,6-dione

CAS No:58-55-9    



Caffeine EP Impurity A chemically known as theophylline has been utilized in the treatment of asthma and chronic obstructive pulmonary disease, It is currently a less preferred choice than inhaled corticosteroids recommended as a second-line choice in the management of patients with asthma. 

Various Caffeine related compounds or reference standards, listed on this page are needed in pharmaceutical research.


Caffeine EP Impurity B


Caffeine EP Impurity C


Caffeine EP Impurity D


Caffeine EP Impurity E


Caffeine EP Impurity F

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  • Mechanism of action of Pharmacodynamics Jul 1, 2022

    Theophylline, also known as 1,3-dimethylxanthine, is a phosphodiesterase inhibiting drug used in therapy for respiratory diseases such as chronic obstructive pulmonary disease (COPD) and asthma under a variety of brand names.

  • The toxicology of theophylline Apr 13, 2022

    Theophylline can reduce the tension of smooth muscle and dilate respiratory tract; It can promote the release of endogenous epinephrine and norepinephrine and relax airway smooth muscle

See also

Ipratropium bromide Impurity D Synonyms: 2-Phenylpropenoic Acid,Ipratropium Bromide Imp. D (EP), Ipratropium Impurity D, Atropic Acid, Ipratropium Bromide Impurity D, α-Methylenebenzeneacetic acid, Atropic acid....

Jul 26,2023Analytical Chemistry

Stevioside is synthesized via the MEP pathway. Gut bacteria metabolize stevioside into steviol in animals. Steviol absorption varies across species, with low toxicity potential.....

Jul 26,2023API



Theophylline manufacturers

  • Theophylline
  • 58-55-9 Theophylline
  • $26.00 / 1kg
  • 2024-05-22
  • CAS:58-55-9
  • Min. Order: 1kg
  • Purity: 99.99%
  • Supply Ability: 5000tons
  • Theophylline
  • 58-55-9 Theophylline
  • $70.00 / 10kilograms
  • 2024-05-22
  • CAS:58-55-9
  • Min. Order: 10kilograms
  • Purity: 99%
  • Supply Ability: 100tons
  • Theophylline
  • 58-55-9 Theophylline
  • $150.00/ kg
  • 2024-05-16
  • CAS:58-55-9
  • Min. Order: 1kg
  • Purity: 99%
  • Supply Ability: 20MT/Month