C7H8N4O2
180.16 g/mol
APIDanger
Theophylline
CAS58-55-9EC200-385-7
Category
API
Compound Class
Heterocycle
Primary Use
Pharmaceutical Raw Material
Theophylline, also known as 1,3-dimethylxanthine, is a methylxanthine compound that inhibits phosphodiesterase and blocks adenosine receptors. It is used as a bronchodilator active pharmaceutical ingredient in the management of chronic obstructive pulmonary disease and asthma.
pharmaceutical raw material for bronchodilator manufacturingresearch compound for phosphodiesterase inhibition studieslaboratory reagent for adenosine receptor research
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Related Compounds
StrongSame Parent
Aminophylline dihydrate
CAS5897-66-5
pharmaceutical raw material
StrongSame Parent
Aminophylline dihydrate
CAS72487-55-9
pharmaceutical raw material
StrongSame Parent
Lasma
CAS75448-53-2
pharmaceutical raw material
StrongSame Parent
Theophylline sodium glycinate
CAS8000-10-0
pharmaceutical raw material
ApplicationSame Use
Tiotropium bromide
CAS136310-93-5
pharmaceutical raw material
ReferenceSame Category
Pyridoxine hydrochloride
CAS58-56-0
pharmaceutical raw material
ReferenceSame Category
Adenosine
CAS58-61-7
pharmaceutical raw material
ReferenceSame Category
Inosine
CAS58-63-9
pharmaceutical raw material
Safety Reference
Danger
H301Toxic if swallowed
H302Harmful if swallowed
H360May damage fertility or the unborn child
H402Harmful to aquatic life
H361Suspected of damaging fertility or the unborn child
H362May cause harm to breast-fed children
H370Causes damage to organs
H372Causes damage to organs through prolonged or repeated exposure
Customs Tariff Classification
The international HS code for Theophylline (CAS 58-55-9) is 2939.59.
HS code (international, 6-digit)
2939.59
EU CN code (8-digit)
2939 59 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
1,3-dimethyl-7H-purine-2,6-dione
InChIKey
ZFXYFBGIUFBOJW-UHFFFAOYSA-N
SMILES
CN1C2=C(C(=O)N(C1=O)C)NC=N2
Synonyms (183)
- LASMA
- Caffeine EP Impurity A; Dimenhydrinate EP Impurity A; Diprophylline EP Impurity B; Pentoxifylline EP Impurity C
- Pentoxifylline EP Impurity F
- Theophylline (USP)
- Theophylline melting point standard, United States Pharmacopeia (USP)
- Theophylline, British Pharmacopoeia (BP)
- Theophylline, European Pharmacopoeia (EP)
- Theophylline, certified reference material, United States Pharmacopeia (USP)
- 1,3-Dimethylxanthine
- 1,3-Dimethylxanthine;Theo-24
- 2a3a
- 4eoh
- 58-55-9 (ANHYDROUS)
- 8-(2-Furyl)theophylline
- AEROLATE JR
- Accurbron
- Acet-theocin
- Aerobin
- Aerolate
- Aerolate III
- Aerolate SR
- Aescin-IIA
- Anhydrous, Theophylline
- Aquaphyllin
- Armophylline
- Asmax
- Austyn
- Bronchodid Duracap
- Bronkodyl
- Bronkodyl SR
- Bronkotabs
- Caffeine Impurity 6
- Choledyl SA
- Constant-T
- DIMENHYDRINATE IMPURITY A
- Diffumal
- Doraphyllin
- Doxophylline metabolite m3
- Duraphyl
- Elixex
- Elixicon
- Elixomin
- Elixophyllin
- Elixophyllin (TN)
- Elixophyllin SR
- Elixophylline
- Euphylline
- Euphylong
- GS 2591A
- Hylate
- LaBID
- Lanophyllin
- Liquophylline
- Maphylline
- Medaphyllin
- Mudrane
- Nuelin
- Nuelin SA
- Nuelin sa-250
- Optiphyllin
- PENTOXIFYLLINE IMPURITY C
- Parkophyllin
- Physpa
- Pro-vent
- Pseudotheophylline
- Pulmidur
- Quibron
- Quibron T/SR
- Quibron-T
- Quibron-t (TN)
- Respbid
- Senophylline
- Slo-bid
- Slo-phyllin
- Solosin
- Somophyllin-CRT
- Somophyllin-t
- Spophyllin retard
- Sustaire
- Synophylate-L.A. Cenules
- T-Phyl
- THEOCLEAR L.A.-260
- Tefamin
- Telbans
- Teocen 200
- Teofilina
- Teofilina [Polish]
- Teofyllamin
- Teolair
- Teonova
- Theacitin
- Theal tabl.
- Theal tablets
- Theo 24
- Theo-24 (TN)
- Theo-Dur-Sprinkle
- Theo-Organidin
- Theo-dur
- Theobid
- Theobid Duracap
- Theobid Jr.
- Theochron
- Theocin
- Theoclair-SR
- Theoclear 80
- Theoclear L.A.-130
- Theoclear LA
- Theocontin
- Theodel
- Theodur G
- Theodur G (TN)
- Theofol
- Theograd
- Theokin
- Theolair
- Theolair (TN)
- Theolair-SR
- Theolix
- Theolixir
- Theona P
- Theopek
- Theophyl
- Theophyl-SR
- Theophyline
- Theophyllin
- Theophyllinate, Glycine
- Theophylline (JP18)
- Theophylline (Standard)
- Theophylline CRS
- Theophylline anhydrous
- Theophylline form II
- Theophylline, >=99.0% (HPLC)
- Theophylline-SR
- Theospan
- Theostat 80
- Theovent
- Uni-Dur
- Unicontin CR
- Unifyl
- Uniphyl
- Uniphyl (TN)
- Uniphyllin
- Uniphyllin continus
- Xanthine, 1,3-dimethyl-
- Xanthine,3-dimethyl-
- Xantivent
- component of Dicurin Procaine
- component of Primatene
- component of Theo-Organidin
- ct, theo von
- theophylline
- theophylline solu-tion
- von ct, theo
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