Zhengzhou Yuanli Biological Technology Co., Ltd. Founded in 2009, it focuses on the technological development and achievement transformation of chemical APIs, new materials and new drugs. It's the supplier of BNCT treatment products. The company is also a leading research and development institution and product supplier of Nitrogen heterocyclic (Acridine) series and Boron cluster (Carborane) series.
Our Factory
The R&D center is over 4,500㎡in Zhengzhou High tech Zone, and has a pilot plant, industrial transformation, and production base of over 80,000㎡in Sanmenxia Chemical Industry Park.
Quality Control
Our state-of-the-art facilities ensure compliance with regulatory standards, providing clients with reliable and efficient sourcing solutions. We manufacture your active pharmaceutical ingredients in compliance with the highest quality and safety standards.
Our Certificate
We provide products cooperation for customers in over 70 countries and have products or technology collaborations with over 80 universities or research institutions. Currently, 67 invention patents have been applied and 35 have been authorized. It's a National High-tech Enterprise company and also gets so many other certificates of provincial and city level.
We offer the following Product：
3,3'-Thiodipropionic Acid
3,3'-Thiodipropionic acid(TDPA), CAS: 111-17-1, is white powder. TDPA is used in the production of thioester antioxidants.
Dilauryl Thiodipropionate (DLTDP)
Dilauryl thiodipropionate(DLTDP), CAS: 123-28-4, is white powder. DLTDP is mainly used as a polymer antioxidant and is widely used in synthetic resins, rubber, plastics, and other fields. It is particularly suitable for use in polypropylene and high-density polyethylene, as well as natural rubber and synthetic rubber. It can also be used as an antioxidant for oils, soaps, lubricants, and grease.
Distearyl Thiodipropionate (DSTDP)
Distearyl thiodipropionate (DSTDP), CAS: 693-36-7, is white granule or powder. DSTDP (Distearylthiopropyl) is a commonly used antioxidant, mainly used to prevent the degreasing and oxidative decomposition of organic polymers. It is widely used in PE, PP, PVC, ABS, rubber, and lubricating oils.
Hot Sale Antioxidant 168
Antioxidant 168 C42H63O3P, CAS: 31570-04-4, is white granule or powder. Antioxidant 168 is an excellent phosphite antioxidant with strong pull-out resistance, hydrolysis stability, and can significantly improve the photostability of products. It can be used in combination with various phenolic antioxidants.
Antioxidant 1076
Antioxidant 1076 C35H62O3, CAS: 2082-79-3, is white powder. Antioxidant 1076 is a commonly used antioxidant, mainly used to prevent the degreasing and oxidative decomposition of organic polymers. It is widely used in PE, PP, PVC, ABS, rubber, and lubricating oils.
Product Specification
|
3,3'-Thiodipropionic Acid |
||
|
Appearance |
White power |
White power |
|
Melting point |
128-134℃ |
130.1-133.6℃ |
|
Acid value(mgKOH/g) |
623-630 |
628.21 |
|
Assay |
≥99% |
100.01% |
|
Loss on drying |
≤0.5% |
0.28% |
|
Color(Hitting 10min under 200℃) |
White block |
Complies |
|
Dilauryl Thiodipropionate (DLTDP) |
||
|
Appearance |
White powder |
White powder |
|
Volatility (WT%) |
≤0.50 |
0.10 |
|
Inatial melting point (WT%) |
38.0-41.0 |
39.8 |
|
Acid value (mgKOH/g) |
≤0.50 |
0.04 |
|
Ash (WT%) |
≤0.05 |
0.01 |
|
Color,(Pt-Co)No. |
≤60 |
30 |
|
Distearyl Thiodipropionate (DSTDP) |
||
|
Appearance |
White granule or powder |
White powder |
|
Volatility (WT%) |
≤ 0.50 |
0.02 |
|
Inatial melting point (WT%) |
63.5 - 68.5 |
66.5 |
|
Acid value (mgKOH/g) |
≤ 0.50 |
0.04 |
|
Ash (WT%) |
≤ 0.05 |
0.01 |
|
Color,(Pt-Co)No. |
≤ 50 |
30 |
|
Transmittance |
425nm ≥ 97.0 |
99.8% |
|
500nm ≥ 98.0 |
99.9% |
|
|
Assay |
≥ 99% |
99.9% |
|
Hot Sale Antioxidant 168 |
||
|
Appearance |
White powder or granule |
White powder |
|
Melting point |
183.0～187.0℃ |
185.2～185.8℃ |
|
Volatilizing |
Max. 0.30% |
{Fields 1}5% |
|
Clarity of solution |
Clear solution |
Clear |
|
Color of solution at 425nm |
Min.98.0% |
99.5% |
|
Color of solution at 500nm |
Min.98.0% |
99.6% |
|
Acidity mgKOH/g |
Max. 0.30 |
0.01 |
|
Content of 2,4-B |
Max. 0.20% |
0.07% |
|
Assay |
Min.99.0% |
99.9% |
|
Degradation |
Pass |
Pass |
|
Antioxidant 1076 |
||
|
Appearance |
White powder |
White powder |
|
Solubility |
Limpidity (2g/20ml, Toluene) |
Limpidity (2g/20ml, Toluene) |
|
Melting range |
50.0～55.0℃ |
51.3～52.7℃ |
|
Volatility |
≤ 0.20 WT% |
0.10 WT% |
|
Light transmittance at 425nm |
≥ 97.0% |
99.0% |
|
Light transmittance at 500nm |
≥ 98.0% |
99.7% |
|
Ash content |
≤ 0.10 WT% |
0.03 WT% |
|
Purity |
≥ 98.0 WT% |
99.5 WT% |
Other Services
Packing
The goods is packaged in cardboard drums, inside double layer polyethylene bags, 25kg/Drum, also can be packaged according to customer requirements.
Handling and Transportation
Packaging is suitable for all modes of transportation such as express delivery, airplane, sea freight, etc.
Storage
The goods should be stored in a cool, dry, and well ventilated place, sealed. Storage conditions should preferably be a sheltered environment with limited temperature variations and low humidity levels.Touch the package with water or any other liquid directly will cause the product to cake, should be stacked in pallets. Under normal conditions,the use of this product does not cause any undue health hazard. Precautions must be taken to prevent solid or liquid product to contact with skin or eyes.
Certification
FAQ
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