China Biggest Factory manufacturer supply Kanamycin B

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Bekanamycin Basic information Product Name: Bekanamycin Synonyms: d-streptamine,o-3-amino-3-deoxy-alpha-d-glucopyranosyl-(1-4)-o-(2,6-diamino-2,;kanendomycin;kdm;nebramycinfactor5;nebramycinv;(2R,3S,4R,5R,6R)-5-Amino-2-(aminomethyl)-6-[(1R,2S,3S,4R,6S)-4,6-diamino-3-[(2S,3R,4S,5S,6R)-4-amino-3,5-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-2-hydroxycyclohexyl]oxyoxane-3,4-diol;Bekanamycin;NK 1006 CAS: 4696-76-8 MF: C18H37N5O10 MW: 483.51 EINECS: 225-170-5 Product Categories: Inhibitors;Pharmaceutical Intermediates;API Mol File: 4696-76-8.mol   Bekanamycin Chemical Properties Melting point  178-182° (dec) alpha  D18 +130° (c = 0.5 in water); D21 +114° (c = 0.98 in water) Boiling point  580.49°C (rough estimate) density  1.3771 (rough estimate) refractive index  1.7600 (estimate) storage temp.  under inert gas (nitrogen or Argon) at 2–8 °C solubility  Aqueous Acid (Slightly), Methanol (Slightly, Heated, Sonicated), Water (Sparingl pka 13.07±0.70(Predicted) form  Solid color  Crystals Stability: Hygroscopic   Safety Information Toxicity LD50 i.v. in mice: 136 mg/kg (Wakazawa) MSDS Information   Bekanamycin Usage And Synthesis Originator Kanendomycin,Meiji Seika,Japan,1969 Uses Kanamycin B (cas# 4696-76-8) is a compound useful in organic synthesis. Manufacturing Process 200 liters of the medium containing 2.0% starch, 1.0% soybean meal, 0.05% KCl, 0.05% MgSO4·7H2O, 0.3% NaCl, 0.2% NaNO3 was placed in the 400 liter fermenter, the pH was adjusted to 7.5, and the medium was then sterilized (pH after the sterilization was 7.0) for 30 minutes at 120°C, inoculated with 1,000 ml of 40 hour shake-cultured broth of S. kanamyceticus (a selected subculture of K2-J strain) and tank-cultured at 27°-29°C. As antifoam,soybean oil (0.04%)and silicone (0.04%) were added. The broth after 48 hours was found to contain 250 mcg/ml of kanamycin. A portion (950 ml) of the rich eluate was adjusted to pH 6.0 by the addition of sulfuric acid. Ultrawet K (7.0 g) in 70 ml water was added slowly to the neutralized eluate to precipitate kanamycin B dodecylbenzenesulfonate which was collected by filtration after adding filter aid (Dicalite). The cake was washed with water and extracted with 100 ml methanol. After filtering and washing with methanol, sulfuric acid was added to the filtrate until no more kanamycin B sulfate precipitated. After addition of an equal volume of acetone to provide more complete precipitation, the kanamycin B sulfate was collected by filtration, washed with methanol and dried in vacuo at 50°C. Therapeutic Function D-Streptamine, O-3-amino-3-deoxy-α-D-glucopyranosyl-(1- 6)-O-[2,6-diamino-2,6-dideoxy-α-D-glucopyranosyl-(1-4)]-2-deoxy sulfate (1:1) Antimicrobial activity A component of the mixture of kanamycins produced by Streptomyces kanamyceticus. It is approximately twice as active as kanamycin A and is twice as toxic. It is not active against amikacin-resistant strains of MRSA. It is poorly active against Ps. aeruginosa. The pharmacokinetics and uses are similar to those of kanamycin. A 0.5% ophthalmic solution has been used to treat gonococcal ophthalmia neonatorum. It is available in Japan. Safety Profile Poison by intravenous route.Moderately toxic by intraperitoneal and subcutaneousroutes. When heated to decomposition it emits toxicfumes of NOx. Purification Methods A small quantity of kanamycin B (24mg) can be purified on a small Dowex-1 x 2 column (6 x 50mm); the required fraction is evaporated to dryness and the residue crystallised from EtOH containing a small amount of H2O. [Umezawa et al. Bull Chem Soc Jpn 42 537 1969.] It has been crystallised from H2O by dissolving ~1g in H2O (3mL), adding Me2NCHO (3mL) and setting aside at 4o overnight. The needles are collected and dried to constant weight at 130o. It has also been recrystallised from aqueous EtOH. It is slightly soluble in CHCl3 and isoPrOH. [IR: Wakazawa et al. J Antibiot 14A 180, 187 1961, Ito et al. J Antibiot 17 A 189 1964, Beilstein 18 III/IV 7631.]   Bekanamycin Preparation Products And Raw materials Raw materials HAM'S F10-MEDIUM

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Leader Biochemical Group is a large leader incorporated industry manufacturers and suppliers of advanced refined raw materials From the year of 1996 when our factory was put into production to year of 2020, our group has successively invested in more than 52 factories with shares and subordinates.We focus on manufacture Pharm & chemicals, functional active ingredients, nutritional Ingredients, health care products, cosmetics, pharmaceutical and refined feed, oil, natural plant ingredients industries to provide top quality of GMP standards products.All the invested factories' product lines cover API and intermediates, vitamins, amino acids, plant extracts, daily chemical products, cosmetics raw materials, nutrition and health care products, food additives, feed additives, essential oil products, fine chemical products and agricultural chemical raw materials And flavors and fragrances. Especially in the field of vitamins, amino acids, pharmaceutical raw materials and cosmetic raw materials, we have more than 20 years of production and sales experience. All products meet the requirements of high international export standards and have been recognized by customers all over the world. Our manufacture basement & R&D center located in National Aerospace Economic & Technical Development Zone Xi`an Shaanxi China. Now not only relying on self-cultivation and development as well as maintains good cooperative relations with many famous research institutes and universities in China. Now, we have closely cooperation with Shanghai Institute of Organic Chemistry of Chinese Academy of Science, Beijing Institute of Material Medical of Chinese Academy of Medical Science, China Pharmaceutical University, Zhejiang University. Closely cooperation with them not only integrating Science and technology resources, but also increasing the R&D speed and improving our R&D power. Offering Powerful Tech supporting Platform for group development. Keep serve the manufacture and the market as the R&D central task, focus on the technical research.  Now there are 3 technology R & D platforms including biological extract, microorganism fermentation and chemical synthesis, and can independently research and develop kinds of difficult APIs and pharmaceutical intermediates. With the strong support of China State Institute of Pharmaceutical Industry (hereinafter short for CSIPI), earlier known as Shanghai Institute of Pharmaceutical Industry (SIPI), we have unique advantages in the R & D and industrialization of high-grade, precision and advanced products.  Now our Group technical force is abundant, existing staff more that 1000 people, senior professional and technical staff accounted for more than 50% of the total number of employees, including 15 PhD research and development personnel, 5 master′ S degree in technical and management personnel 9 people. We have advanced equipment like fermentation equipment and technology also extraction, isolation, purification, synthesis with rich production experience and strict quality control system, According to the GMP required, quickly transforming the R&D results to industrial production in time, it is our advantages and our products are exported to North and South America, Europe, Middle East, Africa, and other five continents and scale the forefront in the nation, won good international reputation.  We believe only good quality can bring good cooperation, quality is our key spirit during our production, we are warmly welcome clients and partner from all over the world contact us for everlasting cooperation, Leader will be your strong, sincere and reliable partner in China.

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