Professional Supply CAS 123948-87-8 Topotecan

• Powder: Yes
• Customized: Non-Customized
• Certification: GMP, ISO 9001, USP, BP
• Suitable for: Elderly, Adult
• State: Solid
• Purity: >99%
• Model NO.: TY-02ALI
• CAS No.: 123948-87-8
• Appearance: White Powder
• Einecs: 687-471-1
• Assay: 99%
• Shelf: 2 Years
• Transport Package: 25kg/Drum 1kg, 10kg, 100kg, 200kg
• Specification: 25kg/drum
• Trademark: tongyon
• Origin: China
• Production Capacity: 5000kg/Month

Product Description

 

Product name	Topotecan
CAS	123948-87-8
Appearance	white powder
Assay	99%
Storage	Cool and Protect from light

Product Name:Topotecan
CAS:123948-87-8
MF:C23H23N3O5
MW:421.45
EINECS:687-471-1
Mol File:123948-87-8.mol  Melting point:−114 °C(lit.)
Boiling point:>100 °C(lit.)
Density 1.2 g/mL at 25 °C(lit.)
vapor density 1.3 (vs air)
vapor pressure 613 psi ( 21.1 °C)
Flash point:12 °C
storage temp. 2-8°C
solubility H2O: soluble
pka8.92±0.40(Predicted)
form liquid
color yellow




Camptothecin anticancer drugs are alkaloids or derivatives of them after the structure transformation raised from deciduous plant Davidia involucrata Camptotheca acuminate seed or root bark. Clinical application of them mainly includes camptothecin,hydroxycamptothecin, topotecan and irinotecan.
Topotecan is a water-soluble semi-synthetic derivative of camptothecin,it is a topoisomerase I inhibitor, inhibiting DNA single strand DNA scission reconnect to damage DNA, its cytotoxicity occurs in cancer cell division S phase, it is an s phase cell cycle specific drug . In vivo it is a two-compartment model,it can be quickly distributed to the liver, kidneys and other parts , of a single intravenous infusion 1.5mg/m2 every 30 minutes , t1/2αis 4.1 to 8.1 minutes, plasma protein binding rate is 6.6%~21.3%,it can go into the cerebrospinal fluid. Most of it is excreted by the kidneys, a small part of it is excreted by the bile, within 12 hours, 90% of it is excreted.Clearance rate of renal dysfunction decreases.it is clinically used for the treatment of small cell lung cancer (SCLC), and advanced ovarian cancer, because it can penetrate the blood-brain barrier ,it has a certain effect on the central nervous system cancer and brain metastases. Usage: every single drug dose 1.2mg/m2 intravenous infusion once a day, once every 5 days, 21 days is 1 cycle, there is the need to reduce the dose when in combination with other anticancer drugs. The main adverse events are hematologic toxicity, white blood cells, platelets and hemoglobin decrease; non-hematologic toxicity adverse events are loss of appetite, nausea, vomiting, hair loss, stomatitis, diarrhea, headache, fever, constipation, transient elevated transaminase; occasionally breathing difficulties, hematuria, andelectrocardiogram abnormalities.


GuangZhou TongYi biochemistry technology Co., Ltd is a company specializing in active pharmaceutical ingredient
(API), biology, plant extracts, chemical raw materials, fine chemicals, pharmaceutical intermediates, cosmetics raw
material. Our company has always adhered to the company philosophy of integrity, professionalism, quality first, and
customer service. With the efforts of all the company's employees, it has established long-term
and stable cooperative relations with many domestic and foreign customers, and won the unanimous trust of domestic
and foreign customers. With good comments, our company have made great progress.

Our company takes pioneering and innovative, high-quality and efficient as the code of conduct, and strives to provide
customers with efficient services,
high-quality products, and reasonable prices. We have established a customer demand-oriented, flexible, diverse and customizable service according to the different needs of different customers. Mode, and ultimately achieve the goal of
win-win.

Our company focuses on the future and the world, and will continue to devote itself to technological progress and the
development of new products in the future, hoping to work hand in hand with new and old friends at home and abroad
to create a better future.