THEOPHYLLINE (1,3-DIMETHYLXANTHINE)

THEOPHYLLINE
PRODUCT IDENTIFICATION
CAS NO.	58-55-9
EINECS NO.	200-385-7
FORMULA	C₇H₈N₄O₂
MOL WT.	180.17
H.S. CODE
TOXICITY
SYNONYMS	1,3-Dimethyl-2,6-dioxo-1,2,3,6-tetrahydropurine; Théophylline;
1,3-Dimethylxanthine; 1H-purine-2,6-dione; 3,7-dihydro-1,3-dimethyl-1H-purine-2,6-dione; Teofilina;
SMILES
CLASSIFICATION
PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE	white crystalline powder
MELTING POINT	270 - 274 C
BOILING POINT
SPECIFIC GRAVITY
SOLUBILITY IN WATER	Soluble in hot water, alkaline solution.
pH
VAPOR DENSITY
AUTOIGNITION
NFPA RATINGS	Health: 2 Flammability: 0 Reactivity: 0
REFRACTIVE INDEX
FLASH POINT
STABILITY	Stable under ordinary conditions
GENERAL DESCRIPTION & APPLICATIONS
Theophylline, structurally 1,3-Dimethylxanthine, is a white crystalline powder with a bitter taste; found in tea leaves and prepared synthetically. Chemical designation is 1,3-Dimethyl-2,6-dioxo-1,2,3,6-tetrahydropurine. Theophylline, its salts, and its derivatives (examples are aminophylline, oxtriphylline) are bronchodilators which relaxe and open the air passages to the lungs to increase the flow of air through them, and thus are used in the treatment and/or prevention of symptoms of bronchial asthma and of reversible bronchospasm associated with chronic bronchitis and emphysema. They are used as muscle relaxants, central nervous system and cardiac muscle stimulants. Main derivatives include: Aminophylline: combination mixture of theophylline and ethylenediamine; used as a bronchodilator, diuretic agent and smooth muscle relaxant. Oxtriphylline: Choline theophyllinate (the choline salt of theophylline); administered orally. Theophylline Calcium Salicylate: an equimolar mixture of theophylline calcium and calcium salicylate; administered orally. Theophylline Sodium Glycinate: an equimolar mixture of theophylline sodium and glycine buffered with an additional mole of glycine and yielding 44.5 to 47.3 per cent anhydrous theophylline; administered orally. Theophylline Ephedrine: combination mixture of theophylline and ephedrine; to decongest the nasal allergic states, to relax bronchiolar muscles, to stimulate central nervous system in narcolepsy and in poisoning by central nervous system depressants; to prevent hypotension during spinal and infiltration anesthesia.
SALES SPECIFICATION (BP/USP)
APPEARANCE	white to off-white crystalline powder
ASSAY	97.0 - 103.0%
IDENTIFICATION	Complies
MELTING POINT	270 - 274 C
SULFATED ASH	0.1% max
SOLUTION CLARITY	clear, colorless
INDIVIDUAL IMPURITY	0.5% max
HEAVY METALS	20ppm max
TRANSPORTATION
PACKING
HAZARD CLASS	6.1 (Packing Group: III)
UN NO.	1544
OTHER INFORMATION
`Hazard Symbols: XN, Risk Phrases: 22`, `Safety Phrases:`36
PRICE INFORMATION