Item
|
Standard
|
Test Results
|
||
Identification
|
A.H-NMR:Comply with the structure
|
Complies
|
||
B.LC-MS:Comply with the structure
|
Complies
|
|||
C.The IR spectrum of sample should be identical with that of reference standard.
|
Complies
|
|||
D.HPLC-ESI-MS
The retention time of the major peak in the chromatogram of the Assay preparation corresponds to that in the chromatogram of the Standard preparation, as obtained in the Assay. |
Complies
|
|||
Heavy metals
|
≤10 ppm
|
<10ppm
|
||
Water
|
≤1.0%
|
0.1%
|
||
Sulphated ash
|
≤0.5% determined on 1.0 g.
|
0.009%
|
||
Residue on ignition
|
≤0.1%
|
0.03%
|
||
Related Substances
|
Unspecified impurities: for each impurity
|
≤0.10%
|
<0.10%
|
|
Total Impurities
|
≤0.5%
|
0.18%
|
||
Purity
|
≥99.0%
|
99.7%
|
||
Assay
|
99.0%~101.0% (anhydrous substance).
|
99.8%
|
||
Storage
|
Preserve in well-closed, light-resistant and airtight containers.
|
Complies
|
We have many years of experience in the export of chemicals,
so we can guarantee safe packaging and shipping for you.
Hebei Guanlang Biotechnology Co., Ltd.
We were founded in 2007, located in Shijiazhuang City, which is the capital of Hebei Province and hub sector among Beijing, Tianjin, and Hebei.
We have the advantage of convenient transportation.
Our company is a modern high-tech chemical enterprise with Research & Development, production and sales.
In recent five years, the company has implemented the strategy of "going out" vigorously.
Our company will continue to adhere to the strategic positioning of fine chemical industry in the future and competition ideas of irreplaceable product differentiation, and strive to become to the leading of Chinese chemical industry.
*Exhibition show
Q: How to start orders or make payments?
A:You can send our your Purchase order(if your company has), or just send a simple confirmation by email or by Trade Manager, and we will send you Proforma Invoice with our bank details for your confirmation, then you can make payment accordingly.
Q: How to confirm the Product Quality before placing orders?
A:You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.
Q: What's your MOQ?
A:For the high value product, our MOQ starts from 1g and generally starts from 10gs. For other low price product, our MOQ starts from 100g and 1kg.
Q: Is there a discount?
A: Yes, for larger quantity, we always support with better price.
Q:How do you treat quality complaint?
A:First of all, our quality control will reduce the quality problem to near zero. If there is a quality problem caused by us, we will send you free goods for replacement or refund your loss.
Q:How to contact us ?
A:You can choose your interested products and send inquiry to us.You can dial our telephone directly, you will get our reply.Send Email to us.