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CAS NO.63-42-3
Good quality
Competitive price
On time delivery
English name: Lactose
Assay: 99.0%min.
Standard: USP/EP/BP
Appearance: White or almost white crystalline Powder
CAS Number:63-42-3
Specifications: 100 mesh 200 mesh
Formula:C12H22O11
Molecular Weight:342.30
Lactose is a sugar extracted from sweet or sour whey.
1.white crystalline powder
2. use for food,pharma etc.
3. USNF27 standard
Lactose
ANALYSIS AS PER USNF 27
|
Items of Test |
Standard |
Result of Test |
|
Identification |
Meets |
Meets |
|
Specific rotation |
+54.4~+55.9 |
+54.7 |
|
Acidity or alkalinity |
Add 0.3ml of phenolphthalein TS: the solution is colorless, and not more than 0.4ml of 0.1N sodium hydroxide is required of produce a red color |
Meets |
|
Loss on drying % |
≤0.5 |
0.04 |
|
Water % |
≤1.0 |
0.3 |
|
Heavy metals(as Pb) % |
≤0.0005 |
less than0.0005 |
|
Residue on ignition% |
≤0.1 |
less than0.03 |
|
Protein and light-absorbing impurities |
The absorbance divided by the path length in centimeters is not more than 0.25 in the range of 210 to 220nm and is not more than 0.07 in the range of 270 to 300nm |
Meets |
|
2. TPC, Escherichia coli, mould and yeast |
||
|
TPC (cfu/g) |
less than100 |
less than10 |
|
Yeast & mould (cfu/g) |
less than50 |
less than10 |
|
Escherichia |
Absence |
Not detected |
|
Conculsion |
It comply with the standard USNF 27 |
|