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Audited Supplier Hormones Estradiol CAS No 50-28-2 with high Purity Estrogen Drugs
| Melting point | 178-179 °C(lit.) |
| alpha | D25 +76 to +83° |
| Boiling point | 355.44°C (rough estimate) |
| density | 1.0708 (rough estimate) |
| refractive index | 80.4 ° |
| Fp | 2ºC |
| storage temp. | room temp |
| solubility | Practically insoluble in water, etc |
| form | powder |
| pka | pKa 10.71±0.02 |
| color | White to off-white |
Hebei Lingding Biotechnology Co., Ltd. is a professional business company ,that include pharmaceutical raw materials, pharmaceutical intermediates,and other more than 1000 products of the enterprise, The registered capital is 3 million yuan, it is a collection of scientific research, production and sales in one of the enterprises.
The company's products are sold all over the world, mainly exported to the United States, Europe, Southeast Asia, Australia, the Middle East and South Africa and other countries.The company has a strong scientific research and technical team, can provide customers with high quality products and a full range of services. We will provide firstclass products and better service to face the needs of customers, to meet the challenges of the market. Welcome domestic and foreign customers to negotiate.
| Shipping Terms | ||
| By Express | By Air | By Sea |
| Suitable for under 50kg Fast: 3-7 days Door-to-door service, easy to pick up the goods |
Suitable for more than 50kg Fast: 3-7 days High cost Port to port, professional broker needed |
Suitable for more than 500kg Slow: 7-45 days Low cost Port to port, professional broker needed |
1. One-to-one business communication.
2. Any inquiries will be replied to within 12 hours.
3. We offer a convenient one-station purchasing service. Our professional and thoughtful after-sales service eliminates your worries.
4. We have 10 years of exporting experience in active pharmaceutical ingredient products., Strictly on selecting raw materials.
5. OEM/ODM Available.
6. Reasonable & competitive price, fast lead time.
7. Sample is available for your evaluation & Formulation development.
8. Faster delivery: Sample order in stock and 3-5 workdays for bulk production.
9. Excellent after-sale service.
Q1. What information should I let you know if I want to get a quotation?
Answer: -Quality you require, eg. Assay, Purity, or single impurity
-Quantity you need
-Standard you want, such as USP, EP, JP etc.
Q2. How to make the payment?
Answer: T/T in advance are highly recommended. We can accept Western Union,Credit card and Paypal as well.
Q3. When will you deliver the goods?
Answer: For sample(less than 1kg), in about 3 working days after payment; for larger orders (more than 1kg), in about 7 working days after payment.
Q4. How will you deliver the goods?
Answer: We have strong cooperation with DHL, TNT, UPS, FEDEX, EMS, China Air Post. For container products, we can do sea shipping. You also can choose your own shipping forwarder.
Q5. When will we receive the goods?
Answer: For samples, we will send by TNT/DHL/FEDEX/UPS express, usually it takes about 3-5 to reach you; for larger orders, it will take about 7 -10days at most.
Q6. What if we find your products unsatisfied?
Answer: We will send you a COA (Certificate of Analysis) to you first for you to confirm the quality, but if you find our products not confirm with the COA after you receive it, please show us your test result, we will refund you once we confirm that.
Q7.Do you have stock?
Answer:As we know,most customers prefer stock,so we will try to keep stock for some products.
Suppliers with verified business licenses
Audited Supplier 
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