Citrus Aurantium Extract


Citrus Aurantium Extract

Synephrine CAS No.: 94-07-5

Part Used: Fruit peel

Appearance: Brown yellow to white powder

Specifications: 6% 30% 60% 95% 98% Synephrine HPLC, Citrus Flavonoids 35% 50% 80% HPLC, Hesperidin 85% HPLC

Molecular Formula: C9H13NO2

Molecular Weight: 167.21


Synephrine is the main “active” compound found in the fruit of a plant called Citrus aurantium. The fruit citrus Aurantium is also known as Zhi Shi (in traditional Chinese medicine) and as green orange, sour orange, and bitter orange in other parts of the world. Synephrine is chemically very similar to the ephedrine and pseudo-ephedrine found in many OTC cold/allergy medications and in some weight loss and energy supplements that contain Ma Huang.

Synephrine is a drug commonly used for weight loss. While its effectiveness is widely debated, synephrine has gained significant popularity as an alternative to ephedrine, a related substance that has been made illegal or restricted in many countries due to health risks, and citrus Aurantium extract synephrine used as a precursor in the illicit manufacturing of methamphetamine.

There is however no occurrence of diverted synephrine for the manufacture of amphetamines, and the naturally occurring citrus Aurantium extract synephrine is, due to its phenolic group, unsuitable for such diversion. Synephrine containing bitter orange or synephrine is suspected of causing adverse cardiovascular reactions. Synephrine is derived primarily from the immature fruit of Citrus aurantium, a relatively small citrus tree.

In the application of traditional Chinese medical science, synephrine is used to dispel bloating and a lump in the abdomen and phlegm and to cure edema, constipation, gastroptosis, prolapse of the uterus, and rectocele.


Citrus Aurantium Extract is used as a dietary supplement designed to support calorie burning (thermogenesis) and result in weight loss.

Citrus Aurantium Extract is used in the pharmaceutical field. Synephrine helps to clean the blood and has been reported to dissolve kidney stones.

Citrus Aurantium Extract also is a stimulant, similar to ephedrine, Synephrine is thought to have similar effects in terms of providing an energy boost, suppressing appetite, and increasing metabolic rate and caloric expenditure.

Main Function:

(1). With the function of increasing capillary toughness, lowering cholesterol;

(2). With the function of treating cardiovascular disease;

(3). With the function of anti-virus and anti-inflammatory;

Citrus Aurantium Extract Qherb Test machine

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