- 1. appearance : white crystalline powder
2. packing 25kg/drum
3. 20 grams free samples offered
4. delivery time : 6 days after payment
- 5. shelf life: 3 years
- 6. Payment method T/T L/C
- 7. Stock available
Please enter the product introduction information...
| Items |
Specifications |
| Appearance |
White or of- white powder or crystlline power,odorless |
| Solubility |
Very soluble in N,N-Dimethylformamide,Soluble in methanol,Sparingly soluble inglacial acetic acid, Very slightly soluble inchloroform, Practically insoluble in water. |
| Melting Point |
184°C~186°C |
Physicochemical properties of N-acetylneuramic acid
Density 1.6± 0.1g /cm3
Boiling point 762.3±60.0 °C at 760 mmHg
Melting point 184-186 °C (dec.)(lit.)
Molecular formula C11H19NO9
Molecular weight 309.270
Flash point 414.8±32.9 °C
Accurate mass 309.105988
PSA 176.78000
LogP minus 3.98
Appearance crystal
Vapor pressure 0.0±5.8 mmHg at 25°C
Refractive index 1.581
Storage condition
Sealed with argon and stored at -18ºC.
stability
1. Avoid inhaling the dust of this product and avoid contact with eyes and skin.
Water solubility 50 g/L (20 ºC)
Molecular structure
1, molar refractive index: 65.66
2, molar volume (cm3/mol) : 188.0
3. Isotropic specific volume (90.2K) : 588.1
4, surface tension (dyne/cm) : 95.7
5. Polarizability (10-24cm3) : 26.03
Computational chemistry
1. Reference value of hydrophobic parameter calculation (XlogP) : -3.5
2. Number of hydrogen bond donors: 7
3. Number of hydrogen bond receptors: 9
4. Number of rotatable chemical bonds: 5
5. Number of tautomers: 2
6. Topological molecular polar surface area (TPSA) : 177
7. Number of heavy atoms: 21
8, surface charge: 0
9. Complexity: 403
10. Number of isotope atoms: 0
11. Determine the number of atomic stereocenter: 6
12. Number of uncertain atomic stereocentes: 0
13. Determine the number of chemical bond structure centers: 0
14. Number of uncertain chemical bond structure centers: 0
15. Number of covalent bond units: 1
more
1. Properties: colorless crystal.
2. Density (g/mL,25/4 ° C) : not determined
3. Relative vapor density (g/mL, air =1) : not determined
4. Melting point (ºC) : 185-187 (decomposition)
5. Boiling point (ºC, atmospheric pressure) : not determined
6. Boiling point (ºC, 5.2kPa) : not determined
7. Refractive index: not determined
8. Flash point (ºC) : Undetermined
9. Specific rotation (º, C=2, in water) : -32
10. Spontaneous ignition point or ignition temperature (ºC) : not determined
11. Vapor pressure (kPa,25ºC) : not determined
12. Saturated vapor pressure (kPa,60ºC) : not determined
13. Heat of combustion (KJ/mol) : not determined
14. Critical temperature (ºC) : not determined
15. Critical pressure (KPa) : not determined
16. Value of oil-water (octanol/water) distribution coefficient: not determined
17. Upper explosion limit (%,V/V) : not determined
18. Lower explosive limit (%,V/V) : not determined
19. Solubility: soluble in water and methanol, slightly soluble in ethanol, insoluble in ether, acetone and chloroform.
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