Xi'an Julong Bio-Tech Co., Ltd.
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Country: 
China (Mainland)
Business Type:Trading Company
Tel: +008618049624045
Tel: +008615877690239
Tel: +0086-18792996027
Tel: +008618049624045
Tel: +008618291367393
Tel: +8618629260427
Tel: +008617802922472
Tel: +008618729964529
Mobile: 18049624045
Tel: +008618049624045
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URL: http://LookChem.com
Province/state: Shaan xi
City: xi'an
Street: Xi'an
MaxCard:
Ms.Amber Ms.Florence Ms.Lisa Ms.EllenCAS NO.73-22-3
99%(1-24)Kilogram99%(25-99)Kilogram99%(100-500)Kilogram
Xi'an Julong Bio-Tech Co., Ltd. is located in Xi'an City, Shaanxi Province, China. It is a biotechnology enterprise engaged in the research, development, production and sales of animal and plant extracts, cosmetics, pharmaceutical raw materials and intermediates. The company has complete experimental facilities. And advanced testing instruments ensure the stability of product quality from all aspects. The company has a complete sales service system, the products are exported to countries all over the world, and have won a good international reputation with excellent quality and excellent service.
The company has been adhering to the basic principles of "integrity, quality, service, and win-win" to serve customers, constantly strict requirements, set goals, and implement win-win development.
1. All inquiries will be replied within 12 hours.
2. Dedication to quality, supply & service.
3. Strictly on selecting raw materials.
3. OEM/ODM Available.
4. Reasonable & competitive price, fast lead time.
5. Sample is available for your evaluation & Formulation development.
6. Faster delivery:Sample order in stock and 3-7 days for bulk production.
7. We have strong cooperation with DHL, TNT, UPS, FEDEX, EMS. Or you also can choose your own shipping forwarder.
8. After-Sale Service:
1) International Authorized Third-Party Test For The Products You Demand.
2) 30 Days Warranty of quality of goods.
Product Name: L-trptophan
Specification: 99%
Cas No: 73-22-3
Molecular formula: C11H12N2O2
Appearance: Off-white Crystal Powder.
Storage: Store in cool & dry place, Keep away from strong light and heat.
Shelf Life: 24Months when properly stored.
Grade: Food grade/Medicine/Injection grade
L-tryptophan is an amino acid. Amino acids are protein building blocks. L-tryptophan is called an "essential" amino acid because the body can't make it. It must be acquired from food.
People use L-tryptophan for some mental health disorders, to help quit smoking, for athletic performance, and for emotional symptoms in people with premenstrual dysphoric disorder (PMDD), but there is no good scientific evidence to support many of these uses. There is also concern that using L-tryptophan might cause a condition called eosinophilia-myalgia syndrome (EMS).
Benefit:
One of the key benefits of Tryptophan is that it may help to decrease appetite and reduce symptoms of depression and anxiety. Studies have shown that low levels of Tryptophan in the body may lead to anxiety disorders and depression.
It has also been shown that the Serotonin resulting from Tryptophan has a limiting effect on appetite and may help to reduce caloric intake and weight in obese people. Tryptophan is further used to synthesize Niacin, which is used in the processing of carbohydrates and fats.
Tryptophan supplementation may also encourage healthy sleep patterns. These benefits seem to be directly related to the release and synthesis of Serotonin and Melatonin. Tryptophan is capable of maintaining a fairly consistent level of Serotonin throughout the day and aids in the production of the proper level of Melatonin at night.
This makes Tryptophan distinct from the other well-known Serotonin precursor (and Tryptophan metabolite), 5-HTP. When ingested orally, 5-HTP is not subject to any rate-limiting factors, which means there is no control on how high Serotonin levels may go.
Consequently, Tryptophan’s effects may be less noticeable than 5-HTP, but with potentially fewer side effects.
There are a number of medical conditions which Tryptophan is able to improve. A 2010 study showed that Tryptophan may halt the spread of a common liver condition known as steatohepatitis.
Tryptophan may also be capable of improving conditions associated with irritable bowel syndrome (IBS). It has been shown that the less Tryptophan a person has in their body, the more serious the symptoms of this condition can be.
Function & Application:
Tryptophan is a precursor to a number of different hormones, neurotransmitters, and other substances throughout the body.
As this supplement travels through the bloodstream it aids in the production or synthesis of various proteins. Tryptophan is a precursor for Niacin, a B vitamin with several positive effects on the brain. Tryptophan is also used to make Serotonin, an important neurotransmitter.
Tryptophan is broken down in the liver into the compound 5-HTP and other metabolites. The 5-HTP travels through the bloodstream to the brain, crosses the blood-brain barrier, and enters the brain. Once in the brain, the 5-HTP is converted into Serotonin.
Serotonin is known as the “happiness neurotransmitter,” because the presence of Serotonin in the brain is associated with positive emotions including happiness, peacefulness, and calm.
Tryptophan being a precursor for Serotonin is an important function in itself, but it also leads to a number of additional effects. Serotonin is thought to help regulate things like appetite and mood. Some Serotonin is also converted to Melatonin, the hormone which regulates sleep/wake patterns (circadian rhythm).
Dosage:
As with most supplements, the dosage you take will be determined by your specific purpose or condition. For this reason it is advised to consult with your doctor or qualified medical professional before beginning use.
Some sources indicate that the most commonly used dosage range is between 6 and 12 grams.
Most adults (especially those who are looking to reduce symptoms of depression) will take Tryptophan supplements in 3 or 4 equally divided daily administrations to ensure a consistent supply.
Specification
| Item | Specifications | Results |
| Assay(HPLC) | 98.0%~102.0% | 98.9% |
| Appearance | Off-white powder | Complies |
| Identification | IR | Complies |
| Melting point | 156.0~160.0℃ | 157.0~158.0℃ |
| Loss on drying | ≤0.5% | 0.11% |
| Residue on ignition | ≤0.1% | 0.06% |
| Related substance | ≤1.0% | 0.75% |
| Heavy metals | ≤10ppm | Complies |
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By Express |
By Air |
By Sea |
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Suitable for under 50kg |
Suitable for more than 50kg |
Suitable for more than 500kg |
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Xi'an Julong Bio-Tech Co., Ltd. is located in Xi'an City, Shaanxi Province, China. It is a biotechnology enterprise engaged in the research, development, production and sales of animal and plant extracts, cosmetics, pharmaceutical raw materials and intermediates. The company has complete experimental facilities. And advanced testing instruments ensure the stability of product quality from all aspects. The company has a complete sales service system, the products are exported to countries all over the world, and have won a good international reputation with excellent quality and excellent service.
The company has been adhering to the basic principles of "integrity, quality, service, and win-win" to serve customers, constantly strict requirements, set goals, and implement win-win development.
1. All inquiries will be replied within 12 hours.
2. Dedication to quality, supply & service.
3. Strictly on selecting raw materials.
3. OEM/ODM Available.
4. Reasonable & competitive price, fast lead time.
5. Sample is available for your evaluation & Formulation development.
6. Faster delivery:Sample order in stock and 3-7 days for bulk production.
7. We have strong cooperation with DHL, TNT, UPS, FEDEX, EMS. Or you also can choose your own shipping forwarder.
8. After-Sale Service:
1) International Authorized Third-Party Test For The Products You Demand.
2) 30 Days Warranty of quality of goods.
Q: What's your MOQ
A: For the high value product, our MOQ starts from 1g and generally starts from 10gs. For other low, price product, our MOQ starts from 100g and 1kg.
Q: Is there a discount
A: Yes, for larger quantity, we always support with better price.
Q: How to confirm the Product Quality before placing orders
A: You can get free samples for some products, you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests, we will manufacture the products according to your requests
Q: How to start orders or make payments
A: You can send our your Purchase order (if your company has), or just send a simple confirmation by email or by Trade Manager, and we will send you Proforma Invoice with our bank details for your confirmation, then you can make payment accordingly.
Q: How do you treat quality complaint
First of all, our quality control will reduce the quality problem to near zero. If there is a quality problem caused by us, we will send you free goods for replacement or refund your loss.
