Complaint
Testing Item | Standard | Result |
Appearance | White crystalline granular | White crystalline granular |
Assay | 98.0-102.0 % | 99.20 % |
Specific Rotation [α]D20 | +14.50°~+16.50° | +15.20 ° |
Loss on Drying | ≤ 4.50 % | 2.71 % |
Residue On Ignition(Sulphate Ash) | ≤ 0.20 % | 0.06 % |
pH (0.8% w/v in water) | 4.50 - 6.00 | 5.24 |
Diketopiperazine (DKP) 5-benzyl-3.6-dioxo-2-Piperazineacetic acid | ≤ 1.5 % | < 1.5 % |
Other Related impurities Chromatographic purity | ≤ 2.0 % | < 2.0 % |
Transmittance | ≥ 0.95 | 0.992 |
Heavy Metals (as Pb) | ≤ 10 mg/kg | < 10 mg/kg |
Arsenic (as As) | ≤ 3 mg/kg | < 3 mg/kg |
Lead | ≤ 1 mg/kg | < 1 mg/kg |
Residual Solvents | Meet the requirements | Conform |
Particle Size | 20-60 Mesh | Conform |
Hebei Niuri Spraying Technology Co., Ltd. It was founded in 2021, located in Xingtai, Hebei Province, which is specialized in the research of production and trade of plastic material and pharmaceutical intermediate.
Our products have spread over more than 50 countries in the world, Most of the products produced and sold are exported abroad, and it is well-received in all around the word for its excellent quality.
At the same time in case to maintain good relations of cooperation with domestic manufactures, we actively develop new products, new customers and constantly meet the needs of customers at home and abroad.
We sincerely welcome more clients to cooperate with us.
1.Place of Origin China with Super quality by reasonable price.
2.Fast delivery by safe express way to all the country.
3.Has a number of highly qualified engineers and experts to provide guidance for reagents.
4.When you meet problems in mineral processing, we can provide technical guidance.
5.We can supply sample for testing.
6.We promise 100% deliveried,and 100% resend or refunds if parcel is not deliveried!
1. Can i get some samples?
Yes, we can supply free sample, shipping cost be paid by our customers.
2. How to start orders or make payments?
Proforma invoice will be sent first after confirmation of order, enclosed our bank information. Payment by T/T, Western Union, L/C, Moneygram, BTC ,Escrow.
3. How to confirm the Product Quality before placing orders?
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.
4. How long is lead time?
We deliver goods within 3 days for small order, 7-10 days for bulk order.
5.Is there any discount?
A:Yes, for larger quantity, we always support with better price
