USD $2.00-10.00 / Kilogram
USD $2.00-10.00 / Kilogram
USD $-10.00 / Gram
USD $2.00-10.00 / Kilogram
USD $1.00-1.00 / Kilogram
USD $20.90-24.40 / Gram
USD $9.00-99.00 / Kilogram
USD $1.00-1.00 / Kilogram
USD $1.00-1.00 / Kilogram
chemical name: 5-methyluridine
synonyms: ribosylthymine; 5-methyl-uridine
cas no.: 1463-10-1
molecular formula: c10h14n2o6
assay(purity) or standard:99%
properties: white or semi-white crystalline powder
specifications:
assay: hplc 99.0%min
assay: uv 98%-102%
m.p: 182-187°c
loss on drying:0.5%max
heavy metal: 10ppm max
ignition residue: 0.3%max
infrared spectrum :conforms to structure
application:
pharmaceutical intermediates / medicine intermediates.
item |
specification |
specific rotation |
+39.5 to +41.5° |
state of solution(transmittance) |
clear 98.0% min. |
chloride[cl] |
0.020% max. |
ammonium [nh4] |
0.02% max. |
sulfate[so4] |
0.020% max |
iron[fe] |
10ppm max. |
heavy metals [pb] |
10ppm max |
arsenic[as2o3] |
1ppm max |
other amino acids |
chromatographically not detectable |
loss on drying |
0.20% max. |
residue on ignition[sulfated] |
0.10% max. |
assay |
99.0% min |
packing& storage:
25kg/durm,200kg/barrel,paper-drums and two plastic-bags inside.
stored in a well-ventilated, cool, dry area, out of direct sunlight. keep containers tightly closed when not in use.
the temperature should be lower than 25°c, the relative humidity should not exceed 50%.