Top quality Diprophylline with best price 479-18-5



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Top quality Diprophylline with best price 479-18-5
Top quality Diprophylline with best price 479-18-5
Top quality Diprophylline with best price 479-18-5
Top quality Diprophylline with best price 479-18-5
Top quality Diprophylline with best price 479-18-5
Top quality Diprophylline with best price 479-18-5
Top quality Diprophylline with best price 479-18-5

Top quality Diprophylline with best price 479-18-5

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From $500.0020.00 / Kilogram
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If over 500pcs, mass production will start until pre-production sample has been approved.

Est. 7 days production

Product Description

Product Profile


English name: dyphylline
English alias: Diprophylline; 7-(2,3-Dihydroxypropyl)theophylline, Dyphylline; Dilor; Teofen; Neufil;
CAS No.: 479-18-5
Molecular formula: C10H14N4O4
Molecular weight: 254.24300
Exact quality: 254.10200

Appearance and traits: white powder
Density: 1.57g/cm3
Melting point: 161-162 ° C (lit.)
Boiling point: 589.6oC at 760 mmHg
Flash point: 310.4oC
Refractive index: 1.5403 (172oC)
Water solubility: 33 g / 100 mL (25 oC)

Test Report





Specific rotation

+39.5 to +41.5° 

State of solution(transmittance)

Clear 98.0% min.


0.020% max. 

Ammonium [NH4]

0.02% max. 


0.020% max


10ppm max.

Heavy metals [Pb]

10ppm max


1ppm max

Other amino acids

Chromatographically not detectable

Loss on drying

0.20% max. 

Residue on ignition[sulfated]

0.10% max.


99.0% min






Dyphylline theophylline smooth muscle relaxant, has the effect of dilating bronchial and coronary arteries, and has a diuretic effect. Stable in gastric juice. The antiasthmatic effect is similar to aminophylline, especially for tachycardia. Applicable to bronchial asthma, wheezing bronchitis and other symptoms of wheezing.



Dyphylline is an inhibitor to phosphodiesterase. It is used in the therapy of bronchial asthma, gasping bronchitis and gasping from cardiogenic pulmonary edema. It can soothe the symptom of gasping through loosening bronchial smooth muscle, increasing cardiac blood output, expanding kidney arteriole, increasing glomerulus filtration and renal blood flow, inhibiting distal end renal tubule's reabsorption of sodion and chloridion, and increasing contractility of hanging skeletal muscle. Its action of expanding bronchus is only one tenth of that of aminophylline. It can easily be absorbed orally, metabolize to derivants of theophylline in vivo, and are excreted with urine.

Packaging & Shipping

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Our Services


Company Information

Qingdao Sigma chemical Co., Ltd is is a global chemical industry manufacturers and suppliers of pharmaceuticals and intermediates, food and feed additives, herbal extracts, agrochemicals and fine chemicals etc.
The aim of Qingdao Sigma chemical Co., Ltd is a quality policy that"Elements in the system all have been satisfied, Personnel has been trained; Every batch of material is checked, Each procedure guarantees the quality; Every bag of our products is top grade, Service is thoughtful all the time, quality and reputation to increase market share and promote enterprise development. The quality, colors and forms of our products have reached a high level in related chemical industry, which relies on characteristic and advanced processing technology and it has gained a high and reliable reputation from customers at both quality and services.


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Q1: Are you a manufacturer?
Answer: Yes, we are factory founded on 2002.
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Q4:Can you give me a discount price?
Surely,It depend on your qty
Q5:How can i get a sample?
free samples is available,but freight charges will be at your account and the charges will be return to you or deduct from your order in the future.
Q6: How to confirm the Product Quality before placing orders?
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Q7:How do you treat quality complaint?
A:First of all, our quality control will reduce the quality problem to near zero. If there is a real quality problem caused by us, we will send you free goods for replacement or refund your loss.
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