Product name
Oxygen fluorine acid
Chemical name
9, 10-difluoro-2, 3-dihydro-3-methyl-7-oxo-7h-pyrido[1, 2, 3-de]-1, 4-benzoxazine-6-carboxyllic acid
Product brief introduction
This product is a main raw material of synthesis of ofloxacin series drug.
Molecular structure
Molecule formula
C13h9f2no4
Molecular weight
281.21
Cas-no.
82419-35-0
Product specification
Appearanceú¦white or off-white powder
Assayú¦ í²98%
Loss on dryingú¦ ín0.5%
Residue on ignition ín0.5%
25kg/drum
Supplier: Levofloxacin acid ester, levofloxacin carboxylic acid, oxygen-fluorine acid
í+product nameí+ Levofloxacin acid ester Chemical name Ethyl (s)-9, 10-difluoro-3-methyl-7-oxo-2, 3-dihydro-7h-pyrido[1, 2, 3-de]-1, 4-benzoxazine-6-carboxylate Product brief introduction This product is a main raw material of synthesis of levofloxacin drug. Molecular structure Molecular formula C15h13f2no4 Molecular weight 309.26 Cas-no. 106939-34-8 Product specification Appearanceú¦ white or off-white powder Assayú¦ í²99% (hplc) Loss on dryingú¦ ín0.5% Residue on ignitionú¦ ín0.5% Single impurity: ín0.5% Specific rotation: ín-68.0o~ -72.0o Dextral isomer ín0.2% 25kg/drum.
Product name Levofloxacin carboxylic acid Chemical name 9, 10-difluoro-2, 3-dihydro-3-methyl-7-oxo-(3s)-7h-pyrido[1, 2, 3-de]-1, 4-benzoxazine-6-carboxylic acid Product brief introduction This product is a main raw material of synthesis of levofloxacin series drug. Molecular structure Molecular formula C13h9f2no4 Molecular weight 281.21 Cas-no. 100986-89-8 Product specification Appearanceú¦ white or off-white powder Assayú¦ í²99% Single impurityú¦ ín0.5% Loss on dryingú¦ ín0.5% Residue on ignitionú¦ ín0.5% Specific rotation: -70.0o~-78.0o Dextral isomer: ín0.2% 25kg/drum
Formula:KAl(SO4)2 12H2O Relative Molecular Weight:474.39 CAS NO,: 7784-24-9 EINECS No.:5637-689-7 HS CODE.: 2833301000 Appearance: lump, white crystal, white powder Properties:Colorless, transparent, particle or crystalline powder, odorless, nontoxic, tastes slightly sweet and puckery, astringent, easily soluble in water, its water solution appears acid,is would lose crystal water and become white powder on heating Usage; Food industry: Buffering agents and leavening agents in food-grade products. Chemical Industry: Water Flocculant, aluminum tanning agents and after-treating agents for leather tanning in the leather industry, dyeing agents,Astringents,mordants etc. Items Specifications Potassium aluminum sulfate [AlK(SO4)2.12H2O] % 99.5 Plumbum(Pb) mg/kg 5.0 Arsenic (As) mg/kg 2.0 Fluorine (F) mg/kg 30.0 Selenium (Se) mg/kg 30.0 Moisture % 4.0
Potassium Monopersulfate compound, a white, free flowing crystalline granule, is non-toxic, odorless, and easily soluble in water. It is an efficient, environmentally friendly, and multifunctional acidic oxidant. General Information Product Name Potassium Monopersulfate compound CAS 70693-62-8 Chemical formula 2KHSO5 KHSO4 K2SO4 Molecular weight 614.7 Specification Appearance White, free flowing granule Available Oxygen, % 4.5 KHSO5,  % 42.8 Loss on Drying  % 0.15 Bulk Density, g/L 0.80 pH (10g/L,25 C) 2.0 .4 Sieve Residue on 75 m test sieve, % 90.0 Packaging Product is packaged in plastic woven bags lined with polyethylene film, with a net weight of 20kg/bag or 50kg, or the packaging form and net content can be determined through negotiation according to customer requirements. Storage Store in a cool and well ventilated warehouse to prevent exposure to sunlight, rain, and moisture. Prohibit mixing with reducing substances for storage.
Calcium Citrate, E333,CAS no.5785-44-4, is the calcium salt of citric acid, available as Fine white powder. Calcium Citrate along with citric acid, Sodium Citrate, Magnesium Citrate, Potassium Citrate is widely used as food acidity regulator. Calcium Citrate is also used as preservative in food. As an experienced Calcium Citrate manufacturer and supplier, we has been supplying and exporting Calcium Citrate for almost 10 years, please be assured to buy from us. Any inquiries about price and the market trend please feel free to contact us, we will reply you within 1 working day. Calcium Citrate Specification ITEM STANDARD Appearance Colorless or white crystal Content,% 97.5-100.5 Arsenic % 0.0003 Fluorine % 0.003 Heavy metals(As Pb) % 0.002 Lead % 0.001 Loss on drying,% 10.0-13.3 Acid-insoluble substance% 0.2 Alkalinity According with the test Easy carbony substance According with the test Identification A Meet the erquirement Identification B Meet the erquirement Mercury PPM 1 Yeast 10/g Mold 10/g E.Coli Absendt in 30g Salmonella Absendt in 25g
Iodophor Ingredients: Iodine, dimethyl dodecyl amine oxide, quaternary ammonium salt, non-ionic surfactant, etc. Raw Material Assay: Iodine 5% The common name of the preparations: Iodine trioxide Administration & Dosage of the Preparations: Iodine 3%. Characterization Appearance and usage Reddish brown sticky liquid; its aqueous solution is acidic, foams produce when shaken. It is easily soluble in water or ethanol. It can be dissociated into cationic active species with reactive oxygen and active iodine in the aqueous solution, which has cleaning function. Pharmacological effects It is the complex compound of four alkyl amine reactive oxygen species and iodine, added the special synergist. It is stable and has no impurity. Precautions The preparations wrappers: should be fitted with brand new dark PET/HDPE with plastic inner lid. The Process of making preparations: when you fill the dilution into the container, the foam will be produced. Therefore, the self-priming filling machine is not appropriate. Please be attention the requirement of the preparation's pH value. The requirement of water quality: deionized water would be best. Don't make it with the high hardness tap-water and alkaline water.
L-Cysteine, E920, CAS No.52-90-4, a non-essential amino acid manufactured through fermentation. Cysteine is extracted from raw materials of animal and human origins. Cysteine has the same structure as serine, but with one of its oxygen atoms replaced by sulfur. As an experienced L-Cysteine manufacturer and supplier, we has been supplying and exporting L-Cysteine for almost 10 years, please be assured to buy from us. Any inquiries about price and the market trend please feel free to contact us, we will reply you within 1 working day. Categories Amino Acids Qty in 20â??FCL 12000kg Min Order 500kg Origin China Packaging Factory Packaging or Neutral Certificate ISO, Kosher, Halal, BRC E No. E920 CAS No. 52-90-4 HS Code 293090 Specification FCC/USP L-Cysteine Specification Item Specifications (AJI97 ) Appearance White crystal or crystalline powder; tasteless Assay, % 98.5~101.0 Specific rotation -218~ -224 Loss on drying, % 0.2 Transmittance, % 98.0 Chloride (as Cl), % 0.02 Sulfate (as SO4), % 0.02 Ammonium as (as NH4), % 0.02 Iron (as Fe), % .001 Heavy Metals (as Pb), % 0.001 Arsenic (as As), % 0.0001 pH Value 5.0~6.5 Residue on ignition, % 0.1 Other amino acid Conforms
Product name: 5-Aminolevulinic acid hydrochloride Other Name: 5-ALA HCL Molecular Formula: C5H10ClNO3 Molecular Weight: 167.59 Appearance: White to pale yellow powder Purity: 98.0%-102.0% CAS NO.: 5451-09-2 EINECS No.: 226-679-5 Supplier: ZHENYIBIO 5-aminolevulinic acid hydrochloride is widely used in various scientific fields. The application example is shown below,Increase the yield or increase the green sensitivity of plants; Supplements for animal microorganisms or cell culture.Research on the production of reactive oxygen species from excessive porphyrin accumulation is used for photodynamic diagnosis of cancer.Research on the production of reactive oxygen species from the accumulation of excess porphyrin. 5 ALA hcl Improve the harvest or increase the greenness of plants.In cosmetics,Aminolevulinic acid hydrochloride(5-ALA hcl) used for protecting skin from sun.