Food Grade L-Tryptophan
Trading Port：Any port in China
Lead Time：15-20 working days
Negotiable
1 Ton
(Min.Order)
Payment Terms:
L/C
Beijing TDD E-commerce Co., Ltd
Online Store
11 Yrs
CN Supplier
Main Products
PVC Resin , PP , PE , Pet , Titanium Dioxide , Pigment , Car Tire
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Basic Info.
| Melting point | 289-290°C (dec.)(lit.) |
| alpha | -31.1º (c=1, H20) |
| Boiling point | 342.72°C (rough estimate) |
| density | 1.34 |
| refractive index | -32° (C=1, H2O) |
| storage temp. | 2-8°C |
| solubility | 20% NH3: 0.1g/mL at 20°C, clear, colorless |
| form | powder |
| pka | 2.46(at 25°C) |
| color | White to yellow-white |
| PH | 5.5-7.0 (10g/l, H2O, 20°C) |
| optical activity | [±]20/D 31.5±1°, c = 1% in H2O |
| Water Solubility | 11.4 g/L (25ºC) |
| Merck | 149797 |
| BRN | 86197 |
| Stability: | Stable. Incompatible with strong acids, strong oxidizing agents. |
| InChIKey | QIVBCDIJIAJPQS-VIFPVBQESA-N |
| CAS DataBase Reference | 73-22-3(CAS DataBase Reference) |
| NIST Chemistry Reference | L-Tryptophan(73-22-3) |
| EPA Substance Registry System | L-Tryptophan (73-22-3) |
Usage:
In nutrition & research, medicine, as dietary supplement, cereal enrichment tryptophan.Improve nutrition and strengthen physical fitness.Used in biochemical research, as a sedative in medicine.
Company Overview
B2B cross-border e-commerce platform and the core subsidiary of Guolian Co., Ltd. (603613. Sh). Specialized in raw material&industrial products for more than 20 years and provide wholesale products for customers worldwide. Now the main running industry chain contains: Pigment industry chain, Titanium industry chain, solvent industry chain, resin industry chain, lubricating oil industry chain, carbon black industry chain, packaging industry chain, medical industry chain etc.
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Basic Information
| Company Name | Beijing TDD E-commerce Co., Ltd | Country | China |
| Business Type | Online Store | Company Size | 2000 |
| Established | December 18, 2014 | ||
| Address | Building No.3, Area 6, No.188, West of South Forth Ring Rd, Beijing, China | ||
| Main Products | PVC Resin , PP , PE , Pet , Titanium Dioxide , Pigment , Car Tire | ||
| International Commercial Terms(Incoterms): | FOB, CFR, CIF, FCA | ||
| Terms of Payment: | LC, T/T, D/P | ||
| Average Lead Time: | Peak Season Lead Time: one month, Off Season Lead Time: within 15 workdays | ||
| Number of Foreign Trading Staff: | 20~40 People | ||
| Main Markets: | Southeast Asia, Africa, Mid East | ||
| Nearest Port: | Tianjin,Qingdao,Shanghai | ||
| Import & Export Mode: | Have Own Export License | ||
Company Introduction
