Pharmaceutical Intermediates
Your Professional Pharmaceutical Intermediates Manufacturers
Suzhou Biosynergy Pharmaceutical Co., Ltd. was established in 2014, headquartered in Suzhou Industrial Park. It is a professional company engaged in the research and development, production, and sales of Biosimilars, APIs and intermediates. In the process of rapid development, the company has always followed the management philosophy of "integrity, professionalism, and innovation",
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1,1-Dimethylethyl-N-ethyl-N-[2-(4-formylphenyl)ethyl]carb...English name :1,1-Dimethylethyl-N-ethyl-N-[2-(4-formylphenyl)ethyl]carbamateread more
English synonyms:1,1-DimethylethylN-ethyl-N-[2-(4-formylphenyl)ethyl]carbamate;tert-butyl... -
6-bromo-7,8-dihydronaphthalen-2-yl PivalateEnglish name :6-bromo-7,8-dihydronaphthalen-2-yl pivalateread more
English synonyms:6-bromo-7,8-dihydronaphthalen-2-yl pivalate;Propanoic acid, 2,2-dimethyl-, 6-bromo-7,8-dihydro-2-naphthalenyl... -
(R)-6-(2-amino-4-methoxyphenyl)-5,6,7,8-tetrahydronaphtha...English name :(R)-6-(2-amino-4-methoxyphenyl)-5,6,7,8-tetrahydronaphthalen-2-0lread more
English synonyms:2-Naphthalenol, 6-(2-amino-4-methoxyphenyl)-5,6,7,8-tetrahydro-,... -
6-(2-amino-4-methoxyphenyl)-5,6,7,8-tetrahydronaphthalen-...English name :6-(2-amino-4-methoxyphenyl)-5,6,7,8-tetrahydronaphthalen-2-olread more
English synonyms:2-Naphthalenol,... -
N-(2-(6-hydroxy-1,2,3,4-tetrahydronaphthalen-2-yl)-5-meth...English name :N-(2-(6-hydroxy-1,2,3,4-tetrahydronaphthalen-2-yl)-5-methoxyphenyl)acetamideread more
English synonyms:Acetamide, N-[5-methoxy-2-(1,2,3,4-tetrahydro-6-hydroxy-2-naphthalenyl)phenyl]-... -
N-(2-(6-(benzyloxy)-3,4-dihydronaphthalen-2-yl)-5-methoxy...English name :N-(2-(6-(benzyloxy)-3,4-dihydronaphthalen-2-yl)-5-methoxyphenyl)acetamideread more
English synonyms:Acetamide,... -
7-(Benzyloxy)-3-bromo-1,2-dihydronaphthaleneEnglish name :7-(Benzyloxy)-3-bromo-1,2-dihydronaphthaleneread more
English synonyms:... -
N-(2-bromo-5-methoxyphenyl)acetamideEnglish name :N-(2-bromo-5-methoxyphenyl)acetamideread more
English synonyms:2'-Bromo-5'-methoxyacetanilide;Acetamide,... -
N-Ethyl-2-(4-formylphenyl)-acetamideEnglish name :N-Ethyl-2-(4-formylphenyl)-acetamideread more
English synonyms:Benzeneacetamide, N-ethyl-4-formyl-;N-ethyl-2-(4-formylphenyl)acetamide;Benzeneacetamide, N-ethyl-4-formyl-... -
Intermediate Oseltamivir Phosphate Prevents InfluenzaEnglish name:Oseltamivir phosphate intermediateread more
CAS number:204254-96-6
English synonym:
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Oseltamivir Phosphate Intermediate Prevents PoliomyelitisEnglish name:Oseltamivir phosphate influenza drugread more
CAS number:651324-08-2
English synonym:
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Rocuronium Bromide Intermediate Neuromuscular Blocking AgentEnglish name:Rocuronium bromide intermediateread more
CAS number:119302-24-8
English synonym:
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Why Choose Us
Our Factory
Biosynergy has an 84000 square meter biopharmaceutical research and production workshop in Changshu, Jiangsu, mainly producing monoclonal antibodies. Biosynergy has established research and development centers of over 1000 square meters in Nantong, Jiangsu and Jinan, Shandong, with a production site of 13500 square meters.
Various Products
Our advantageous products include monoclonal antibodies, ADC small molecule toxins, various fermented pharmaceutical raw materials and intermediates.
Production Market
Biosynergy has cooperated with many customers from India, Russia, Bangladesh, Vietnam, Pakistan, Türkiye, Saudi Arabia, Iran, Belarus, Egypt, etc.
Our Certificates
Under the strict management of IS09001 quality system, the company's products have passed a series of international standard certificates such as GMP, CE, FDA, ROHS, LFGB and so on.
Inhibits Virus Replication: By blocking the neuraminidase enzyme, Oseltamivir Phosphate prevents the influenza virus from replicating and spreading within the body.
Alleviates Symptoms: It helps alleviate influenza symptoms such as fever, cough, and sore throat, and can shorten the duration of the illness.
Prevents Complications: In high-risk populations, it can prevent severe complications and hospitalizations associated with influenza infections.

How To Use

This medication should be started as soon as prescribed. It works best if taken within 2 days of your symptoms starting.
Take this medication by mouth twice a day (morning and evening) for 3 to 5 days.
You may take it with food or milk to minimize stomach upset. Take all of the medication until finished as prescribed, even if you are feeling better. Stopping the medication too early may allow the virus to continue to grow, which may result in a relapse of the infection.
Product Description of Intermediate Oseltamivir Phosphate Prevents Influenza
|
Items |
Standards |
Results |
|
Appearance |
White or off-white crystalline powder |
Complies |
|
Identification |
By IR |
Complies |
|
|
By HPLC |
Complies |
|
Solubility |
Very soluble in water,soluble in methanol and alcohol, insoluble in chloroform |
Complies |
|
Optical Rotation |
-30.7°~-32.6° |
-31.1°~-32.4° |
|
Water Content |
≤ 1.00% |
0.46% |
|
Heavy Metals |
≤ 10ppm |
Complies |
|
Residue on Ignition |
≤ 0.10% |
0.06% |
|
Residual Solvents |
Acetonitrile: ≤410ppm |
ND |
|
|
Ethanol: ≤5000ppm |
ND |
|
Related Substances |
Oseltamivir acid: ≤0.30% |
0.14% |
|
|
Single maximum unknown impurity: ≤0.10% |
0.06% |
|
|
Total Impurities: ≤1.00% |
0.52% |
|
Assay (on the anhydrous basis) |
98.0%~102.0% |
99.82% |
|
Reference Standard |
In-house Standard |
|
|
Conclusion |
The product complied to In-house standard. |
|
|
Storage |
Preserve in tight,light-resistant containers in a cool place |
|
Importance of Rocuronium Bromide Intermediate Impurity
Ion Pairing: This compound features a quaternary ammonium structure, which is known for its ability to engage in ion-pairing interactions. This characteristic can be leveraged in many chemical processes to enhance selectivity and reactivity.
Fluorescent Properties: The presence of the xanthene moiety contributes notable fluorescent properties. Xanthene derivatives are well-known in the realm of fluorescence, making this compound potentially useful in various bioimaging applications.
Solvent and Catalyst: Due to its structure, it acts not only as a solvent enhancer but can also play a role as a catalyst in organic reactions, specifically in those that necessitate a nucleophilic species.
Biological Relevance: Compounds with similar structures have been studied for their interactions with biological membranes, enhancing our understanding of drug delivery mechanisms and cellular uptake.
Applications in Synthesis: The versatility of this compound makes it an important intermediate in organic synthesis, especially in the development of complex molecular architectures.
Storage Conditions
- Store at 2 to 8 degrees Celsius
- Do not Freeze
- Refrigerate
- Shelf lifetime is 24 Months
Specs of Rocuronium Bromide Intermediate Impurity
|
Items |
Requirements |
Result |
|
Appearance |
White or almost white crystalsorcrystaline powder |
Conform |
|
Solubility |
Freely soluble in water and inanhydrous ethanol |
Conform |
|
Identificatio |
A:Specific opticail rotation |
Conform |
|
B:IR: The same to check sample |
Conform |
|
|
C:gives reaction of bromides |
Conform |
|
|
Appearance of solution |
Conforms |
Conforms |
|
Specific optical rotation |
+28.5ºC~+32ºC |
+31.2ºC |
|
PH |
8.9 to 9.5 for solution S |
9.20 |
|
Chlorides |
≤0.10% |
0.06% |
|
Related substances |
Impurity A≤0.20% |
ND |
|
Impurity B≤0.20% |
0.061% |
|
|
Impurity C≤0.20% |
0.027% |
|
|
Impurity F≤0.15% |
0.0040% |
|
|
Impurity G≤0.15% |
ND |
|
|
Impurity H ≤0.15% |
0.0048% |
|
|
Total impurities≤1.0% |
0.15% |
|
|
Any other impurity≤ 0.1% |
0.032% |
|
|
Residual solven |
A: Methylene chlorid e ≤0.06% |
0.007% |
|
B: Aceton e ≤0.50% |
0.23% |
|
|
C:Acetonitril e≤0.041% |
0.0039% |
|
|
D:MBTE≤0.50% |
0.06% |
|
|
E:Ethy l ether≤0.50% |
0.08% |
|
|
F:Methano l≤0.50% |
0.0052% |
|
|
Water |
≤4.0% |
2.3 % |
|
Sulphated ash |
≤0.1 |
0.068% |
|
Endotoxin |
<0.30EU/mg |
< 0.30EU/mg |
|
Assay |
99.0%~101% |
99.96% |
|
Conclusion |
CONFORM WITH SPECIFICATION AS PER EP10.0. |
|
Packaging & Shipping


Packaging Details:
25kgs packaging Fiber drum outside and plastic bag inside 1-25kgs packaging ;
Aluminium bag outside and double plastic bag inside.
Delivery Detail:
Within 3 days when get the payment.
Shipping:
We have Professional shipping agent, based on customers ' demand for transport
By express :FEDEX,DHL,EMS ,UPS,TNT ect.
By SEA and By AIR.
As one of the leading pharmaceutical intermediates suppliers in China, we warmly welcome you to wholesale bulk pharmaceutical intermediates in stock here from our factory. Good service and quality products are available.
2189684-53-3, Micafungin Side chain, Lenacapavir GS 6207 Intermediate 3