Product Description & Presentation
99% Purity 58-85-5 D-Biotin Overseas Warehouse Factory Directly Supply
| Density | 1.6±0.1 g/cm3 |
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| Boiling Point | 492.3±55.0 °C at 760 mmHg |
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| Melting Point | 231-233 °C(lit.) |
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| Molecular Formula | C10H16N2O3S |
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| Molecular Weight | 244.311 |
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| Flash Point | 251.5±31.5 °C |
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| Exact Mass | 244.088165 |
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| PSA | 103.73000 |
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| LogP | 0.03 |
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| Vapour Pressure | 0.0±2.8 mmHg at 25°C |
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| Index of Refraction | 1.717 |
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Packaging & Shipping
Company profile
5 Years of Experience in the Industry
Henan Tengmao Chemical Co., Ltd, founded in 2018, focuses on organic chemistry, fine chemical, and its intermediates development, production, and domestic and foreign trade sales in one. The company adopts the efficient operation of modern management mode, timely and effective for our customers to provide all-round, convenient and perfect product technical services.
Exporting to Europe, the US, Asia, and Other Areas
Our products are exported to the Netherlands, Poland, Mexico, Australia, Singapore, Malaysia, the United States, Canada, and other countries, with Shuangqing Line an overseas warehouse, and delivery home.
Be Our Partner Today
The company always adheres to quality-oriented, service-oriented business objectives, in the field of fine chemical reputation. My company will be with a vast number of new and old customers at home and abroad in the new year to create a better future.
FAQ
Q1:Are you a supplier or a manufacturer?
A:We are both a supplier and a manufacturer.
Q2:How will you deliver the goods?
A: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.
Q3:Which kind of payment terms do you accept?
A:Western Union, Bitcoin, PayPal.
Q4:How is the after-sales service?
A:We will provide high-quality products and ensure100% safe deliver.
Q5:how can we guarantee quality?
A:We will send you a COA (Certificate of Analysis) to you first for you to confirm the quality.
Q6: 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.
Q7:Is there any discount?
A:Yes, for larger quantity, we always support with better price.
Our advantage
1. We have experience in exporting trade, as you know, EU places much emphasis on them, and you must find a experienced partner who will assure you;
2. Quality: Our company is a professional leading factory in China in pharmaceutical area, We had stable customers and exported to Germany, Spain, UK, USA, Australia, Middle East, and any other countries. We can provide good references about our company. As for the quality of the products, we 're sure they can satisfy you well enough;
3. Package: Professional packing with professional materials;
4. Delivery: We have products in stock, and we will deliver them soon when your PO arrived. Meanwhile we will give you the tracking number in order to make you know the exact location of the products. We will keep track of the product until they arrive you; We choose the best courier service for you, and with the delivery around 5-7 working days.
5. Service: Best Service with after-sales service and consultation.
China
