3458-28-4, D-Mannose, D-甘露糖, cas:3458-28-4
作者:3458-28-4, D-Mannose, D-甘露糖, cas:3458-28-4 发布时间:2022-09-09 15:52:02
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3458-28-4,D-Mannose,D-甘露糖, cas:3458-28-4
C6H12O6 / 180.16
MFCD00064122D-Mannose
CAS No:
3458-28-4
Synonyms:
D-Mannopyranose
MDL No:
MFCD00064122
Chemical Formula:
C6H12O6
Molecular Weight:
180.16
Product Structure
COA:
Product name: D-Mannose CAS: 3458-28-4
M.F.: C6H12O6 M.W.: 180.16
Batch No: 20130202 Quantity:12.5kg
Items
Standards
Results
Appearance
white crystals or powder
Positive
Solubility
Easily soluble in water,
insoluble in ether
Complies
Appearance of solution
Dissolve0.5 gin 10 ml of water,
and the solution should be clear
Complies
Identification
IR and TLC
Complies
MS and NMR
Should Comply
Complies
Specific rotation
(C =10 inH2O)
+14° ~ +15°
+14.3°
Melting point
125 °C ~ 130 °C
128°C ~ 130°C
Loss on Drying
Max.0.5%
0.05%
Heavy metal
Max. 10ppm
Complies
Residue on ignition
Max. 0.1%
0.05%
Any impurity
Max. 0.5%
Complies
Assay by HPLC
Min. 99%
99.4%
Total Plate Count
≤1000cfu/g
Complies
Yeast, Mold & Fungi
≤200cfu/g
Complies
Salmonella
Negative
Complies
E. Coli
Negative
Complies
Staphylococcus
Negative
Complies
Obt. from the hydrolysates of D-mannans of the tagua palm Phytelephas macrocarpa. Mannans are also present in the ubers of Orchidaceae, seed of Phoenix canariensis, and corms of Amorphophallus konjac (devil’s tongue). They are proliferated by some red algae and yeasts. Mannose is a constit. of blood serum globulins, ovomucoid, and tubercle bacilli. Occurs in trace amounts in apples and peaches. Obt. comly. from ivory nut hydrolysis. Inexpensive starting material for chiral synthesis. pKa1 12.08 (258).
References:
1. Fleet GWJ, Gough MJ, Shing TKM, Tetrahedron Lett. 1984, 25, 4029