| | |
Identification
| A.H-NMR:Comply with the structure | |
B.LC-MS:Comply with the structure | |
C.The IR spectrum of sample should be identical with that of reference standard. | |
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. | |
Heavy metals | ≤10 ppm | |
Water | ≤1.0% | |
Sulphated ash | ≤0.5% determined on 1.0 g. | |
Residue on ignition | ≤0.1% | |
| Unspecified impurities: for each impurity | ≤0.10% | |
Total Impurities | ≤0.5% | |
Purity | ≥99.0% | |
Assay | 99.0%~101.0% (anhydrous substance). | |
Storage | Preserve in well-closed, light-resistant and airtight containers. | |
Contact me
Mail：kaia@hbfengqiang.com
Whatsapp skpye：+8613373049370
Threema：AT23K39V
Company profile
Hebei Fengqiang Trading Co.,ltd. is a high-tech enterprise engaged in the field of fine chemical products, integrating R&D, production and sales. The company has an independent R & D team, which can develop and customize any pharmaceutical raw materials with low price, high quality and first-class service! Fengqiang's products are widely exported to the United States, Russia, Canada, Australia, Europe and many other countries with double-clearance door-to-door delivery services. With honest and credible business philosophy. Harmonious development!
FAQ
Q1. What is your terms of payment?
A: T/T, details could be discussed.
A: FOB, CFR, CIF, DDU, EXW, etc.
Q2. How about your delivery time?
A: Generally, 3 to 12 days upon advance payment.
The specific delivery time depends on your detailed requirements and the quantity of your order.
Q3. Can you produce according to the samples?
A: Yes, we can offer samples or technical drawings.
Q4. What is your sample policy?
A: We could offer the sample for free charge but your esteemed company will pay the cost of freight.
Q5. Do you test all your goods before delivery?
A: Yes, we have 100% inner inspection in our own laboratory and plant before delivery.
Q6: How do you make our business long-term and good relationship?
A: 1. We keep good quality and competitive price to ensure our customers benefit ;
2. We respect every customer as our friend and we sincerely do business and make friends with them.
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