Name | D(-)-Fructose |
Synonyms | HPC Fructose D-Levulose D-Fructose Fruit sugar D(-)-Fructose Fructopyranose fructose, pure Arabino-hexulose D-fructofuranose beta-D-fructopyranose b-D-Fructose (1.04007) D-(-)-Fructose for analysis |
CAS | 57-48-7 7660-25-5 |
EINECS | 200-333-3 |
InChI | InChI=1/C6H12O6/c7-1-3-4(9)5(10)6(11,2-8)12-3/h3-5,7-11H,1-2H2/t3-,4-,5+,6?/m1/s1 |
Molecular Formula | C6H12O6 |
Molar Mass | 180.157 |
Density | 1.694g/cm3 |
Melting Point | 119-122℃ (dec.) |
Boling Point | 440.1°C at 760 mmHg |
Specific Rotation(α) | -92.25 º (c=10,H2O,on dry sub.) |
Flash Point | 220°C |
Water Solubility | 3750 g/L (20℃) |
Solubility | Soluble in water, soluble in methanol (1g/14 m1) and ethanol (1g/15 m1), insoluble in ether. |
Vapor Presure | 1.36E-09mmHg at 25°C |
Appearance | White crystalline powder |
Storage Condition | 2-8℃ |
Sensitive | Easily absorbing moisture |
Refractive Index | 1.616 |
MDL | MFCD00148910 |
Physical and Chemical Properties | Melting Point 119-122°C (dec.) specific optical rotation -92.25 ° (c = 10,H2O,on dry sub.) water-soluble 3750g/L (20°C) |
Safety Description | S24/25 - Avoid contact with skin and eyes. |
This product is D-(-)-fructose. Calculated as dry product, containing C6H1206 should be 98.0% ~ 102.0%.
take 2.0g of this product, add 20ml of water to dissolve, add 3 drops of phenolphthalein indicator solution and 0.02 ml of sodium hydroxide titration solution (0.20 mol/L), which should be pink.
take 0901G of this product, add water to dissolve 10ml, the solution should be clear and colorless; If the color is colored, it should not be deeper than the yellow or yellow-green 1# Standard Colorimetric solution (General rule first method).
take 0.50g of this product, Add 10ml of water to dissolve, according to UV-visible spectrophotometry (General 0401), at the wavelength of 284nm, absorbance should not exceed 0.32.
take 0801g of this product and check it according to law (General rule 0.01%). Compared with the control solution made of 6.0ml of standard sodium chloride solution, it should not be more concentrated ().
take this product 0802G, check according to law (General rule 0.01%), and standard potassium sulfate solution made of ML of the control solution, should not be more concentrated ().
barium salt
take 10. 0g of this product, add water to dissolve and dilute to 100ml, as a stock solution. Take 10ml of stock solution, add lml of lmol/L sulfuric acid solution to prepare the test solution, immediately compare with the control solution made by taking 10ml of stock solution and adding lml of water, and compare it again after 1 hour, none should be more turbid.
take 2.0g of this product, precision weighing, add water 20ml to dissolve, add 2 drops of hydrochloric acid, add ammonia-ammonium chloride buffer (pH10.0)5m l and Chrome Black T indicator appropriate amount, titrated to blue with disodium ethylenediaminetetraacetate (0.005mol/L). Consumption of ethylene diamine tetraacetic acid disodium titration solution (0.005mol/L) should not exceed 0.5.
Take 5.0g of this product, add 10ml of water, and shake it well. Take lml of each product and put it into two cuvettes, respectively. Add 9ml of ethanol in tube A and 9ml of water in tube B, and shake it well. The opalescence of the tube should not be stronger than that of the B tube.
take this product and dry under reduced pressure at 70°C for 4 hours, and the weight loss shall not exceed 0.5% (General rule 0831).
not more than 0.1% (General rule 0841).
take this product 5. G, add water 23ml dissolved, add acetate buffer (pH 3.5)2ml, according to the law (General Principles 0821 The first law), containing heavy metals shall not exceed 4 parts per million.
take 2.0g of this product, add 5ml of water to dissolve, add 5ml of dilute sulfuric acid and 1 ml of bromine test solution, heat and concentrate to about 5ml in a water bath, and let it cool, add hydrochloric acid 5ml and water appropriate to make 28ml, according to the law inspection (General Principles 0822 The first law), should comply with the provisions (0.0001%).
take this product, dissolve it in 0.1% sterile peptone water, treat it by membrane filtration, and rinse it once with 0.1% sterile peptone water (each membrane is not less than 100ml), staphylococcus aureus as a positive control bacteria, according to law inspection (General 1101), should comply with the provisions. (For aseptic dispensing)
Take 10g of this product, weigh it accurately, put it in a 100ml measuring flask, add an appropriate amount of water and 0.2 of ammonia test solution, dissolve it, dilute it to the scale with water, shake it well, and place it for 30 minutes, the optical rotation was measured at 25 ° C. (General rule 0621) and multiplied by 1.124 to obtain the Weight (g) of C6H12O6 in the test product.
Nutrition Medicine.
sealed, stored in a cool and dry place.