Detailed introduction to L-Asparagine monohydrate:
L-Asparagine monohydrate
1, Asparagine is a kind of amino acids, usually used for pharmaceutical intermediate,nutritional supplement.
2, DESCRIPTION: A white to off-white powder that is soluble in water (2.1g/100ml), and insoluble in alcohol,. A 10 mg/ml solution has a pH between 4.0 to 5.5
3, Changzhou Weiqiang Chemical Co .,Ltd. is one of the largest and experienced manufacturers of asparagine in the world, pleased to offer its skills in the field of manufacturing of asparagine,involving L-,D- and DL-type asparagine.
Weiqiang distributes high quality products, certified in meeting the most stringent standards such as USP/NF,FCC, EP, AJI , CP and other special items. Weiqiang has completed significant expansion of its manufacturing facilities for asparagines to meet customers' rising demand for the products.
4, Our asparagine products are
L- Asparagine monohydrate CAS:5794-13-8
L- Asparagine anhydrous CAS : 70-47-3
D- Asparagine anhydrous / monohydrate CAS :2058-58-4 / 5794-24-1
DL- Asparagine monohydrate CAS : 3130-87-8
| Item |
Limit |
| Appearance |
White crystals or crystalline powder |
| Specific Rotation [a]D20o |
-34.5°to -36.5° |
| Loss on drying |
11.5 - 12.5% |
| Transmittance |
98.0% Min |
| Chloride (Cl) |
200ppm Max |
| Sulphate(SO4) |
200ppm Max |
| Ammonium (NH4) |
0.1% Max |
| Iron (Fe) |
10ppm Max |
| Heavy Metals (Pb) |
10ppm Max |
| Arsenic (As2O3) |
1ppm Max |
| Other Amino Acids |
1.0% Max |
| Residue on Ignition |
0.1% Max |
| Assay |
99.0~101.0 |
Packing&Shipping
FAQ
Q1.What's the payment terms?
We could accept T/T, L/C, DP payment terms.
Q2.How about the different index of products in same application?
Specifications can be customized according to your application.
Q3.How about the samples of products?
We can provide free samples under 2Kg(not including freight charge).
Q4.How about the price of products?
Our products are chemical synthesis got from underground brine, which is available for a variety of usage. Our products are high purity with good quality, and the price is based on different specification and quantity.
Q5.What's the shelf life for the cargoes?
Our product's shelf life is 2 years, which is based on dry and ventilated storage.
Q6.What's the package of the cargoes?
20kg/25kg woven bags, within plastic bags, or as customized.
Q7.What's the delivery time?
We usually deliver the cargoes within 10~20 days after receiving customer's payment or original L/C.
Q8.Which documents can we supply?
Commercial Invoice, Packing List, Certificate of Analysis, Certificate of Origin (FORM E), Bill of Loading, ISO etc.
The documents will be sent by Express within 24 hours against your full payment.
Q9.Why do you choose us?
We accept safe and diversified payment terms.
We supply a price trend to ensure clients know marketing information in time. We will take charge of 100% responsibility for
quality issue. We strive to create value for each customer we serve by meeting their unique needs and providing solutions to solve their problems and achieve their objectives.
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