CAS No.: | 72-19-5 |
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Formula: | C6h15cln4o2 |
EINECS: | 214-275-1 |
Packaging Material: | Paper |
Storage Method: | Normal |
Shelf Life: | >12 Months |
Samples: |
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Item
|
Standard
|
Result
|
Assay/%
|
≥98.50
|
99.30
|
Specific Rotation
|
-26.7° ~ -29.0 °
|
-28.40°
|
Loss on Drying/%
|
≤1.00
|
0.50
|
Residue on Ignition/%
|
≤0.30
|
0.20
|
Heavy Metal(Pb)/%(mg/kg)
|
≤20
|
<20
|
Arsenic(As)/%(mg/kg)
|
≤2
|
<2
|
Melting point | 228 °C (dec.) (lit.) |
alpha | -85.5 º (c=4, H2O) |
Boiling point | 215.41°C (rough estimate) |
density | 1.35 |
FEMA | 3319 | L-PROLINE |
refractive index | -85 ° (C=4, H2O) |
storage temp. | 2-8°C |
solubility | H2O: 50 mg/mL |
pka | 1.95, 10.64(at 25ºC) |
form | powder |
color | White |
Product description:Eight kinds of amino acids L-proline (proline for short) is one of the eighteen kinds of amino acids that the human body synthesizes protein. It is colorless to white crystal or crystalline powder at room temperature. It is slightly odorous, slightly sweet, and easily soluble Water, hardly soluble in ethanol, insoluble in ether.
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FRQ
1. Can I get samples ?
Yes, we can supply specified quantity free sample, you pay for the freight charge only.
2. Which documents do you support?
Normally speaking, our MOQ is 1 standard package. But we can supply free sample for testing before mass order.
4. How can you guarantee the quality of your products?
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