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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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Ansamitocin P-3 Has Anti-tumor and Antibacterial ActivitiesEnglish name:ansamitocin P-3read more
CAS number:66584-72-3
Another name: 2'-De(acetylmethylamino)-2'-methylmaytansine;2'-De[acetyl(methyl)amino]-2'-methylmaytansine;Anasamitocin... -
Mertansine Microtubulin InhibitorEnglish name:Mertansineread more
CAS number:139504-50-0
Another name:N2'-deacetyl-N2'-(3-Mercapto-1-oxopropyl)-Maytansine;Maytansinoid dM 1;Maytansine,... -
Maytasinol Microtubule Assembly InhibitorEnglish name:Maytansinolread more
CAS number:57103-68-1
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MonoMethyl Auristatin E Synthesizes Antitumor AgentsEnglish name:MonoMethyl auristatin Eread more
CAS number:474645-27-7
Another name:
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VcMMAE Is An Antibody Drug with Anticancer ActivityEnglish name:VcMMAEread more
CAS number:646502-53-6
Another name:
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Deruxtecan Antibody Conjugated DrugEnglish name:Deruxtecanread more
CAS number:1599440-13-7
Another name:
Deruxtecan... -
Exatecan Mesylate Has Antitumor ActivityEnglish name:Exatecan mesylateread more
CAS number:169869-90-3
Another name:
169869-90-3 (free base);DX 8951; DX 8951;169869-90-3 (FREE... -
DM4 Inhibitor Antibody Drug ConjugateEnglish name:DM4read more
CAS number:796073-69-3
Another name:
... -
Val-Cit-PAB-MMAE Is An Antibody Drug Conjugator InhibitorEnglish name:Val-Cit-PAB-MMAEread more
CAS number:644981-35-1
Another name:
Val-Cit-PAB-MMAE;4H-1-Benzopyran-4-one,7-hydroxy-4-(trifluoromethyl)-;Drug-Linker Conjugates for... -
Calicheamicin Tumor Antibiotic Cytotoxic AgentEnglish name:Calicheamicinread more
CAS number:108212-75-5
Another name:
calicheamicin gamma(1)I; Benzenecarbothioic acid,... -
N-Acetyl-Calicheamicin Highly Active Anti-tumor AntibioticEnglish name:N-Acetyl-Calicheamicinread more
CAS number:108212-76-6
English synonym:
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Dxd Is An Inhibitor Antibody Binding DrugEnglish name:Dxd is an inhibitor antibody binding drugread more
CAS number:1599440-33-1
English synonym:
Dxd; Exatecan derivative;...
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.
The fermentation solution or solid fermentation medium is extracted with the extraction solvent to obtain the extraction solution.
Concentrate the resulting extract to get the concentrated extract crude A, then add neutral alumina, and Chemicalbook use organic solvent to mix it evenly with crude A.
Steam the evenly mixed rough product A to the dry sand shape.
Add the organic solvent to step 3) in the dried sand A, shock stand, take the supernatant.
The supernatant of was concentrated, steamed to sandy, and eluted by column chromatography to obtain anisectin P-3.

Ingredients and Composition of Ansamitocin P-3 Has Anti-Tumor And Antibacterial Activities

The particular chemical needs of the synthesis process they are involved in define ansamitocin p 3 composition. Typically, depending on their intended use, these intermediates consist of carbon, hydrogen, oxygen, nitrogen, and other elements. The choice of components affects the reactivity and stability of the intermediates, enabling producers to customize ansamitocin p 3 to particular uses. Modern methods in organic chemistry are used to create intermediates with exact structures, therefore allowing the synthesis of complicated compounds with intended characteristics. Growing attention is being paid to creating intermediates with less impact on the environment as the sector changes by including sustainable methods in their manufacturing.
Product Description of Ansamitocin P-3 Has Anti-Tumor And Antibacterial Activities
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Product Name: |
Ansamitocin P3 |
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Cas No.: |
66547-09-9 |
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Molecular Weight: |
635.14482 |
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Formula: |
C32H43Cln2O9 |
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Density: |
1.3 |
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Boiling Point: |
837.6°C At 760 Mmhg |
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Melting Point: |
182-185°C |
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Flash Point: |
460.4°C |
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Storage Temperature: |
2-8°C |
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Refractive Index: |
1.584 |
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Appearance: |
White Powder |
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Purity: |
≥98% |
Properties and Functions of Exatecan+Linker
Well, the number of properties and functions that can be set to exatecan is sufficient to make any health system consider them indispensable. Basically, they work for powerful doses of phytochemical constituents (such as antioxidants, vitamins, and minerals) to varying degrees, thus making them essential in health maintenance. They have a specialized role in preventing oxidative stress, boosting immunity, and improving overall wellness. Excellent absorption and utilization by the body. One such property that is very much looked after is bioavailability. Well, exatecan helps in one or the other tasks completed in the human body: digestive aid, anti-inflammation, or clarity of thought. These are the least processed products that come from nature, which makes them attractive to advocates of organic or holistic approaches to health.
Product Description of Exatecan+Linker
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Items |
Standards |
Results |
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Appearance |
Red powder |
Red |
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Identification |
By HPLC |
Complies |
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Melting Point |
120ºC~130ºC |
126ºC |
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Loss on Drying |
≤1.00% |
0.21% |
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Heavy Metals |
≤ 10ppm |
Complies |
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Sulfated Ash |
≤ 0.10% |
0.03% |
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Content |
17.5%~19.5% |
19.3% |
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Content |
≤ 0.1ppm |
0.09ppm |
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Lead VContent |
≤ 3.0ppm |
0.50ppm |
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Content |
≤ 0.1ppm |
0.10ppm |
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Content |
≤ 0.1ppm |
0.10ppm |
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Microbiological Test |
Coliforms:Negative |
Negative |
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Salmonella: Negative |
Complies |
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Total plate count: ≤1000 CFU/g |
Pass |
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Yeast&Mold: ≤50 CFU/g |
Pass |
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Related Substances |
Impurity A: ≤0.30% |
0.18% |
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Other unknown impurity: ≤0.10% |
0.07% |
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Total Impurities: ≤0.50% |
0.42% |
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Assay |
≥ 98.0% |
99.50% |
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Reference Standard |
USP Standard |
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Conclusion |
The product complied to USP standard. |
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Storage |
Preserve in tight,light-resistant containers in a cool place |
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Lead Time
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Quantity (pieces) |
1 - 100 |
101 - 200 |
201 - 300 |
> 300 |
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Lead time (days) |
5 |
7 |
15 |
To be negotiated |
Packaging and Transportation


As one of the leading adc payloads suppliers in China, we warmly welcome you to wholesale bulk adc payloads in stock here from our factory. Good service and quality products are available.
Duocarmycin SA Oral Active Antitumor Antibiotic, 108212-76-6, Dxd is an inhibitor antibody binding drug