Theophylline Anhydrous CAS 58-55-9

Theophylline Anhydrous CAS 58-55-9

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Product Details

 

Product name:
Theophylline
Molecular Formula: 
C7H8N4O2
Molecular Structure:
mtxx99
Molecular Weight: 
180.2
CAS No.: 
58-55-9


Description

Theophylline is a white or almost white, crystalline powder. It is slightly soluble in water, sparingly soluble in ethanol (96 per cent). It dissolves in solutions of alkali hydroxides, in ammonia and in mineral acids.

 

Application

Non-selective phosphodiesterase inhibitor (xanthine); treatment of reversible airways obstruction.

 

Specification

Appearance
White or almost white, crystalline powder.
Melting point
270 °C to 274 °C
Appearance of solution
Meets the requirements.
Acidity
Meets the requirements.
Heavy metals
≤20 ppm
Loss on drying
≤0.5%
Sulfated ash
≤0.1%
Related substances:

Caffeine 
≤0.1%
3-methyl-3,7-dihydro-1H-purine-2,6-dione
≤0.1%
N-(6-amino-1,3-dimethyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl) formamide
≤0.1%
Theophyllidine 
≤0.1%
Any other impurity
≤0.1%
Total impurities 
≤0.5%
Assay
99.0%-101.0%


Packing and Storage

Preserve in well-closed containers.

 

Minimum Order

One package

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