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My Cart> Biochemical Reagents > Carbohydrates and Derivatives > α-Lactose Monohydrate;4-O-β-D-Galactopyranos
CAS：5989-81-1
Molecular Formula：C12H22O11·H2O
Molecular Weight：360.31
Appearance：White Powder
Storage：Store at RT，2 years
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| Name | α-Lactose monohydrate;4-O-β-D-Galactopyranos |
| CAS | 5989-81-1 |
| Molecular Formula | C12H22O11·H2O |
| Molecular Weight | 360.31 |
| Storage | Store at RT，2 years |
| Appearance | White Powder |
| Solubility | 50 mg/mL Water |
| Unit | Bottle |
| Specification | 500g |
It is used as an analytical reagent, chromatographic analytical reagent, and also for the preparation of biological media.
No smell. It's slightly sweet. "It is stable in air but readily absorbs odors and becomes anhydrous at 120 hours." 1G is soluble in 5ml of water, 2.6ml of boiling water, almost insoluble in ethanol, insoluble in chloroform and ether. The relative density (d20) was 1.53. Melting point 201 ~ 202℃(rapid heat).
Index values of quality inspection items
Burn residue (as sulfate), % ≤0.05
The acidity (as H+)/(mmol/g) was ≤0.04
The specific optical rotation power αm(20℃,D)/{[(°)·m2]/kg} +52.2 ~ +52.8
Water insoluble matter, % ≤0.05
Heavy metals (as Pb), % ≤0.05
Dextrin and starch qualified
Iron (Fe), % ≤0.05
Dry weight loss, % ≤0.5
Clarity test/No. ≤3
Nitrogen compound (N), % ≤0.05
Fat, % ≤0.01
Note：Product information may be optimized and upgraded. Please refer to the actual label information for accuracy.
Remark：These protocols are for reference only. Solarbio does not independently validate these methods.
Note：
1. The products are all for scientific research use only. Do not use it for medical, clinical diagnosis or treatment, food and cosmetics, etc. Do not store them in ordinary residential areas.
2. For your safety and health, please wear laboratory clothes, disposable gloves and masks.
3. The experimental results may be affected by many factors, after-sale service is limited to the product itself and does not involve other compensation.
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