- Min.Order :10 Kilogram
- Purity: 99%
- Payment Terms : L/C,D/A,D/P,T/T
Keywords
Dextran 70 Dextran Dextran 70
Quick Details
- Appearance:white crystalline powder
- Application:active pharmaceutical ingredient
- PackAge:as request
- ProductionCapacity:|Metric Ton|Day
- Storage:in cool
- Transportation:Air / SEA BOTH OK
Superiority:
1. GMP AVALIABLE ;
2. IN STOCK
3. FAST REPLY
QUALIFED ; EFFICIENCY; RESPONSIBLE
Details:
|
ITEMS |
SPECIFICATIONS |
RESULTS |
|
|
Appearance |
White or almost white powder |
White powder |
|
|
Solubility |
Very soluble in water ,very sligtly soluble in ethanol (95%) |
Conform |
|
|
Specific Rotation |
+195° ~ +203° |
+198° |
|
|
Identification |
IR spectrum is consistant with that of reference standard |
Conform |
|
|
Test |
pH :4.5 ~7.0 |
5.7 |
|
|
Nitrogen ≤0.01% |
Conform |
||
|
Colour of solution: 375nm absorbance ≤ 0.15 |
Conform |
||
|
Residual solvents : Ethanol ≤0.05% |
Conform |
||
|
Loss on drying ≤ 7.0% |
2.6% |
||
|
Heavy Metals ≤ 5ug/g |
Conform |
||
|
Sulfated ash ≤ 0.3% |
0.07% |
||
|
Molecular weight and distribution :
|
The average molecular mass (Mw): 63000 ~77000 |
68955 |
|
|
Macromolecule (10%) : Mw ≤195000 |
185487 |
||
|
Micromolecule (10%) : Mw ≥13000 |
15845 |
||
|
The average molecular mass (Mn): 34000 ~48000 |
42094 |
||
|
Mw/Mn: 1.4 ~1.9 |
1.6 |
||
|
Chloride and sulfate ≤0.03% |
Conform |
||
|
Bacterial endotoxins ＜0.5U/mL |
Conform |
||
|
Microbial contamination |
TAMC ≤ 102 cfu/g |
＜10cfu/g |
|
|
Escherichia coli can not be detected every gram |
Not detected /g |
||
|
Packaging and Storage |
Preserve in well-closed containers ,store at 25°; excursions are permitted between 15°and 30°. |
||
|
Conclusion |
The product complies with USP40. |
||
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