| CAS No.: | 73-22-3 |
|---|---|
| Formula: | C11h12n2o2 |
| EINECS: | 200-795-6 |
| Classification: | Saturated Alcohol |
| Appearance: | Powder |
| Type: | 3°(Trisubstituted Carbinol) |
| Customization: |
|---|
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Audited Supplier This product is white or white crystalline powder. Odorless or slightly smelly, slightly bitter. Melting point 289ºC (decomposition). It is slightly soluble in water (1.14%, 25ºC) and very slightly soluble in ethanol. Dissolve in a dilute acid or base. Long periods of light color.
use
Amino acid drugs. For amino acid infusion. Often used with iron, vitamins, etc. Combined with vitamin B6 to improve depression, prevention and treatment of pellagra; Used as an insomnia sedative in conjunction with L-dopa to treat Parkinson's disease; Also used in vitamin B6 deficiency tests.
Tryptophan can also be used in nutritionally fortified foods. Used as a third feed amino acid.
| Product Name | L(-)-Tryptophan |
|---|---|
| CAS NO. | 73-22-3 |
| Density | 1.4±0.1 g/cm3 |
| Boiling Point | 447.9±35.0 °C at 760 mmHg |
| Melting Point | 289-290 °C (dec.)(lit.) |
| Molecular Formula | C11H12N2O2 |
| Molecular Weight | 204.23 |
| Flash Point | 224.7±25.9 °C |
| Exact Mass | 204.089874 |
| PSA | 79.11000 |
| LogP | 1.04 |
| Vapour Pressure | 0.0±1.1 mmHg at 25°C |
| Index of Refraction | 1.698 |
Packaging storage and transportation
1. Packing: 25kg/bag, 50kg/bag
2. Storage: It is sealed in an iron drum lined with plastic film and stored in a cool, dry and well-ventilated place, away from direct sunlight and away from heat sources, acid, water and humid air.
3. Transportation: This product is non-toxic and harmless, non-flammable and explosive dangerous goods. It can be transported by car, sea or train. Less carload, vehicle is not limited, agent consignment.
We are Ouhuang Engineering Materials (Hubei) Co., Ltd.Our company mainly produces and sells various water-based environmentally friendly resins (water-based resin powder, water-based rosin resin, water-based terpene tree, etc.), various water-based environmentally friendly latex (water-based thickened emulsion, water-based air-butyl latex, water-based butyl latex, etc.) , and various environmentally friendly additives (defoamer, thickener, antioxidant, dispersant).High-end product quality and sincere sales service are our tenets.We are willing to provide you with professional services in the areas we are familiar with and look forward to your consultation.
1.Supply sample
2.The packing also can be according the customers` requirment
3.Any inquiries will be replied within 24 hours
4.we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate. If your markets have any special requirements, let us know.
5.Factory price.
6.Prompt delivery. We have good cooperation with many professional forwarders, We can send the products to you once you confirm the order.
7.We can accept various payment methods, L/C, T/T, D/A, D/P, paypal, Western Union etc., and we cooperate with Sinosure many years.
1. Are you a manufacturer or trading company?
A: We are a manufacturer and welcome to visit our factory.
2. How to confirm the product quality before placing an order?
A: We can provide you with the sample. Also, we have the inspection report issued by the authoritative third-party testing agency.
3: What's your MOQ?
A: It depends on different products. We accept sample orders. Also for some products, we can provide you with a free sample.
4:Do you provide after-sales service?
A: We provide 24-hour customer service. If you encounter any product quality problems or transportation problems, please feel free to contact us.
5:How about delivery time and method?
A: We usually ship within 3-5 working days after payments.
We can make ships by sea, air, and express. Also can make door-to-door shipping.
6:How to solve the after-sale disputes?
A: We accept changing or refunding services if there is any quality problem.
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Audited Supplier 
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