Superiority:
1,Best Quality:
Our products have exported to Germany, Spain, UK, USA, Australia, Middle East, and so on other countries, and we have got very good feedback from our customers.so you can trust us.
2, Payment method: for example T/T, Westerm Union,other
3, Excellent Service: Best service and after-sales service to all clients.
1)We will ship the goods within 5days after get your payments.If you want to cancel or change order, please tell me within 24hours after you finish the payment..
2)We will ship the goods that you order from us by DHL, UPS, TNT and EUB.We will decided to choose which courier depend on different countries.To find the best way to delivery the goods for you.
3)As usual you can get the goods with in 4-7days.If the goods were lost or not received for other reasons, please contact us immediately.
4,Fast and safe delivery:
Sample Order : As usual you can get the goods within 4-7days. We can send it via HKems, HK Air Post, DHL or other methods.
We have a professional and stable logistics, and we can deliver the package smoothly around 3 to 5 days.
Bulk Order: Shipped via sea or air, it's according to your requirement, delivery time is 7-15days after payment.
If you have any other questions to consult me,please not hesitate to contact me any times.
Details:
L-theanine physical and chemical properties
Density 1.2±0.1 g/cm3
Boiling point 430.2±40.0 °C at 760 mmHg
Melting point 207 ° C
Molecular formula C7H14N2O3
Molecular weight 174.198
Flash point 214.0±27.3 °C
Precise quality 174.100449
PSA 92.42000
LogP -1.02
Appearance traits white crystalline solid
Vapor pressure 0.0±2.2 mmHg at 25°C
Refractive index 1.492
Storage conditions
Sealed in a cool dry environment
Stability
It is odorless and has a unique taste of sweetness. The taste threshold is 0.15%. The decomposition temperature is 214 to 215 °C.
Molecular Structure
1, molar refractive index: 43.16
2, molar volume (m3 / mol): 148.6
3, isotonic capacity (90.2K): 391.8
4, surface tension (dyne / cm): 48.2
5. Polarization rate (10-24cm3): 17.11
Computing chemistry
1. Hydrophobic parameter calculation reference value (XlogP): none
2. Number of hydrogen bond donors: 3
3. Number of hydrogen bond acceptors: 4
4. Number of rotatable chemical bonds: 5
5. Number of tautomers: 2
6. Topological molecular polarity surface area 92.4
7. Number of heavy atoms: 12
8. Surface charge: 0
9. Complexity: 170
10. Number of isotope atoms: 0
11. Determine the number of atomic stereocenters: 1
12. Uncertainty of the number of atomic stereocenters: 0
13. Determine the number of chemical bond stereocenters: 0
14. Uncertain chemical bond number of stereocenters: 0
15. Number of covalent bond units: 1
More
1. Properties: white crystalline powder.
2. Density (g/mL, 25/4 °C): no available
3. Relative steam density (g/mL, air = 1): no available
4. Melting point (oC): 207
5. Boiling point (oC, atmospheric pressure): no available
6. Boiling point (oC, 5.2kPa): no available
7. Refractive index: no available
8. Flash point (oC): no available
9. Specific optical rotation (o): no available
10. Self-ignition point or ignition temperature (oC): no available
11. Vapor pressure (kPa, 25oC): no available
12. Saturated vapor pressure (kPa, 60oC): no available
13. Heat of combustion (KJ/mol): no available
14. Critical temperature (oC): no available
15. Critical Pressure (KPa): No Available
16. Logarithm of oil-water (octanol/water) partition coefficient: no available
17. Upper explosion limit (%, V/V): no available
18. Lower explosion limit (%, V/V): no available
19. Solubility: Soluble in water, insoluble in ethanol, ether.