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L-Asparagine Asparagine 5794-13-8
L-Asparagine
Description:
Product Name: L-Asparagine
Molecular Formula: C4H8N2O3•H2O
Molecular Weight: 150.13
CAS No: 5794-13-8
L-Asparagine Monohydrate is an organic compound, one of the 20 amino acids commonly found in animal Proteins. Only the l-stereoisomer participates in the biosynthesis of mammalian proteins. Its structure is identical to that of the amino acid aspartic acid, except that the latter compounds acidic side- chain carboxyl group has been coupled with ammonia, yielding an amide. Like glutamine, asparagine is important in the metabolism of toxic ammonia in the body.
Specifications:
L- Asparagine |
AJI92 |
FCC5 |
USP39 |
EP8 |
Assay |
99.0-101.0% |
98.0-101.5% |
98.0-101.5% |
99.0-101.0% |
PH |
4.4-6.4 |
/ |
/ |
4.0-6.0 |
Specific rotation[a]D20 |
+34.2°-+36.5° |
+33.0°-+36.5° |
+33.0°-+36.5° |
+33.7-+36.0 |
Specific rotation[a]D25 |
/ |
/ |
/ |
/ |
Transmittance(T430) |
≥98.0% |
/ |
/ |
/ |
Chloride(Cl) |
≤0.02% |
/ |
/ |
≤0.02% |
Ammonium(NH4) |
≤0.1% |
/ |
/ |
≤0.01% |
Sulfate(SO4) |
≤0.02% |
/ |
/ |
≤0.02% |
Iron(Fe) |
≤10PPM |
/ |
/ |
≤10PPM |
Heavy metals(Pb) |
≤10PPM |
≤5PPM |
≤5PPM |
≤10PPM |
Arsenic |
≤1PPM |
/ |
/ |
/ |
Other amino acids |
conform |
/ |
individual impurities≤0.5% total impurities≤1.0% |
≤0.5% |
Ninhydrin-positive substances |
/ |
/ |
/ |
/ |
Loss on drying |
11.5-12.5% |
11.5-12.5% |
11.5-12.5% |
10.5-12.5% |
Residue on ignition |
≤0.10% |
≤0.10% |
≤0.10% |
≤0.10% |
Function:
1)Asparagine has good function of revealing fresh and the preservation. Asparagine widely uses as medicinal preparation or revealing fresh and antiseptic in food profession,and can replace monosodium glutamate.
2)Asparagine can be raw material of heart disease medicine and liver function promoter,ammonolysis toxic agent, weary elimination medicinal preparation and amino acid infusion.
Application:
1)L-Asparagine has good function of revealing fresh and the preservation. Asparagine widely uses as medicinal preparation or revealing fresh and antiseptic in food profession,and can replace monosodium glutamate. L-Asparagine can be raw material of heart disease medicine and liver function promoter,ammonolysis toxic agent, weary elimination medicinal preparation and amino acid infusion.
2)L-Asparagine has good function of revealing fresh and the preservation. Asparagine widely uses as medicinal preparation or revealing fresh and antiseptic in food profession,and can replace monosodium glutamate. L-Asparagine can be raw material of heart disease medicine and liver function promoter,ammonolysis toxic agent, weary elimination medicinal preparation and amino acid infusion.
Q&A:
1.Are you a manufacturer or trade company
We have our own factory which located in Zhejiang,China.Meanwhile,we also have many parter factorier,so we can supply many kinds of relative products with very competitive price and good quality.
2.How to start an order
After negoation and communication about the price,quantity,incoterm,etc.,you give me the order contract with stamp,then I sealed it ,send back to you,also give you the proforma invoice,you can arrange the payment according the PI.
3.What’s your payment terms
If sample,small amount: T/T in advance, ,Paypal.
If commercial order ,big amount: T/T in advance,L/C at sight.
4.Can I get a free sample
If this product is not very expensive,and you demand a small sample,we can supply free sample,but not including the shipping cost,you can provide a freight collect account or arrange the shipping cost by Paypal/Westunion.
5.What's the lead time
Generally we send out your order ASAP after payment,normally
small quanitity,3-5days.
big quanitity with stock,5-7days,
if without stock,we have to calculate the production period,then give you the lead tme.
6.How do you ship the order normally
If less than 50kg,will be shipped by express,such as FEDEX,DHL.
If above 50kg,we can ship it by air or sea
For very large quantity,ship it by sea will be the best choice.
7.How do you ensure the quality of your products
Strict QC with 6 steps testing from raw material purchase to finished product.
Meanwhile,we will responsible for the goods quality after be sold.
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