Shijiazhuang Rt Pcr Test Kits Suppliers and Manufacturers

Lactic acid has characteristics,such as hot stability natural purely with soft and certain tart flavor,etc.Widely used in the food,pharmaceutical,electroless plating industries,etc. Basical Information: CAS#: 50-21-5 M.F.: C3H6O3 EINECS NO.: 200-018-0 Appearance: Colorless Transparent Viscidity Liquid Lactic Purity: 80.0-90.0% Item Unit Quality Standards Analysis Results Color Appearance Smell Chromaticity Hazen Colorless to pale yellow, Transparent liquid,No odor or slightly characteristic odor, Max.100 Light yellow Transparent liquidNo odor97.5 Burning residue % w/w Max. 0.1 0.04 Chloride ppm Max. 20

sodium lactate food grade is colorless or slightly yellow, viscous transparent clear liquid, odorless or slightly special odor, mildly salty taste, sodium lactate content of not less than 50%, miscible with water and ethanol at any ratio, nearly neutral in its aqueous solution, and insoluble in diethyl ether and trichloromethane. Items Standards Appearance Clear, colourless, slightly syrupy liquid Solubility Miscible with water and with alcohol Identification A Reaction of lactates Identification B Reaction of sodium pH 5.0-9.0 Color 50APHA Stereo chemical purity(L-isomer) 95% Chloride 0.05% Sulphate 0.005% Lead 0.0002% Sugar Passes test Citrate/Oxalate/Phosphate/Tartrate Passes test Methanol and methyl esters 0.025% Assay 60% Cyanide 0.00005%

It is a reddish brown, glossy columnar crystal or crystalline powder. Odorless, no change in air exposure, soluble in water and alcohol. Methylene blue is mild and safe to use, and it also helps to improve the respiratory function of fish. Main Uses: 1) methylene blue can be used for dyeing; 2) Superior product methylene blue can be used for sterilization and disinfection; 3) Industrial grade methylene blue is used for dyeing cotton, acrylic fiber, hemp, silk and paper, and is also used for coloring bamboo and wood and for making ink (red ink) and color lake; 4) Analysis of pure methylene blue used as REDOX indicator, adsorption indicator and biological stain in chemical reagents, such as the determination of tin, boron and other metals, mixed indicator for serum protein test, shed cell test staining solution, basic methylene blue staining solution. 5) Analysis of pure methylene blue used for the determination of tin. Reductive titrant used to precipitate perchlorate and rhenate. Determination molybdenum by catalytic spectrophotometry. 6) Detoxification drugs, can be used for nitrite, sulfonamide, cyanide poisoning antidote. 7) Methylene blue for the development of new materials. 8) Bacterial stain.

Balanced fertilization with all nutrients: Soil testing formula, in addition to ammonia, phosphorus and potassium, at the same time contains a variety of microelements which fruits and vegetables need,reduce the yellow leaf, lobular, dehiscent fruit and other physiological diseases; After application,the crops will grow healthily, the roots are developed, the stems will be strong, the seedlings are protected, the fruits and melons will become more fragrant, the vegetables are delicious,and the cold resistance and drought resistance of the crops are enhanced. Wide range of applications: it is suitable for all kinds of soil and crops, especially suitable for chlorine sensitive and high sulphur-using crops such as fruits and vegetables, tea, etc.

Liquefied by hygroscopic agglomeration. Becomes brown when melting, later turns to green gradually, still turns white after cooling.1g dissolves in 0.5ml ace*tone, 12ml ethanol, 8ml boiling ethanol. Soluble in water. When dissolved in its own weight of water, the temperature drops about 30 �ºC. Aqueous solution is neutral. Low toxicity, LD50 (rat, oral) 854mg/kg. Prepare thiocyanate titrants. Determine trivalent iron, copper and silver. Urine test. Tungsten color developer. Indicator for volumetric determination of titanium. Cooling agent. Photographic thickening agent.

GERMALL PLUS is a combination of Diazolidinyl Urea and IPBC pre-dissolved in Propylene Glycol for ease of use. This combination exhibits a synergistic preservative effect, which reduces the total active preservative level necessary; provides for complete, broad spectrum preservation against Gram-positive and Gram-negative bacteria, yeast, and mold. Compatible with most cosmetic raw materials. Can be used in a wide variety of leave-on and rinse-off personal care formulations for reliable preservation. Recommended use levels in a finished formulation is 0.1-0.5%. Add at 50�°C or below during the cool down stage of processing. Every cosmetic formulation requires a specific preservative system to meet its individual needs. Therefore, every newly developed or modified product should be challenge tested to assure preservative efficacy.

PRODUCT SPECIFICATIONS Product Name: Trehalose dehydrate CAS number 99-20-7 ANALYSIS ITEMS SPECIFICATION TEST METHOD Appearance White crystalline powder Purity(trehalose) 98.0% Loss on drying 1.5% PH 5.0-6.7 Color 0.1 Turbidity of solution 0.05 Lead 0.5mg/kg Residue on ignition 0.05% Viable counts 300cfu/g Yeasts and moulds 100cfu/g Coliform organisms 30MPN/100g Pathogenic Negative Packing Pack in paper-drums and two plastic-bags inside N.W. 25 kgs I.D.35xH51cm. Storage Store in a well-closed container away from moisture, light, oxygen. Shelf Life 24 months under the conditions above and in its original packaging

Phenol is an organic compound with C6H5OH. It is a colorless needle -shaped crystal with a special smell. It is toxic and is an important raw material for producing certain resins, sterilization agents, preservatives, and drugs (such as aspirin). It can also be used for the treatment of sterilized surgical equipment and excrement, skin sterilization, itching and otitis media. The melting point is 43 �° C, which is slightly soluble at water at normal temperature, and is easily soluble in organic solvents. When the temperature is higher than 65 �° C, it can solve the water in any proportion. The phenol is corrosive. After contact, the local protein degenerates. The solution can be washed with alcohol with alcohol. A small part of the phenol is exposed to the air by oxidation into pink. When the three -price iron ion becomes purple, this method is usually used to test the phenol.

Product Name Phenylethyl Resorcinol Other Name Symwhite 377 Powder Einecs No. 480-070-0 purity 99%min CAS NO 85-27-8 MW 214.26 MF C14h14o2 Color White Test HPLC Storage Temperature Cool Dry Place Phenylethyl Resorcinol is served as a newly lightening and brightening ingredient in skin care products with better stability and security, which is widely used in whitening, freckle removing and anti-aging cosmetics. 1. It has an outstanding whitening effect to skin. It is reported that it is one of the highest active tyrosine kinase inhibitors, which is 22 times higher than Kojic acid. 2. It is an antioxidant that is considered effective in influencing the formation of pigmentation, B16V, which is 210 times better than Kojic acid and 32 times than Arbutin. It could balance skin color and relieve the chromatosis caused by ultraviolet. 3. It served as an anti-oxidant agent with better performance, which is better than VE/VC/BHT 4. It is easily dissolved with dissolvability of 1% in glycol and easy to be added. Meanwhile it has better stability and security. 5. Dosage: 0.1-1.0%

2-Ethylhexyl Salicylate, or octyl salicylate, is an organic compound used as an ingredient in sunscreens and cosmetics to absorb UVB (ultraviolet) rays from the sun. It is an ester formed by the condensation of salicylic acid with 2-ethylhexanol. It is a colorless oily liquid with a slight floral odor. The salicylate portion of the molecule absorbs ultraviolet light, protecting skin from the harmful effects of exposure to sunlight. The ethylhexanol portion is a fatty alcohol, adding emollient and oil-like (water resistant) properties. Test Items Specifications Results Appearance Colorless to pale yellow liquid Colorless liquid Odour Slight characteristic Slight characteristic Identity (IR) USP Matches reference spectrum Matches reference spectrum Identity (Retention time) USP Matches reference retention time Matches reference retention time UV Specific extinction (E1%1cm,310nm, ethanol) USP 165-185 175 Specific gravity(25ºC) USP 1.011-1.016 1.015 Refractive index(20ºC) USP 1.500-1.503 1.503 Acidity(ml/ml) Titration (USP) 0.2 0.0ml/ml Chromatographic purity GC USP Purity (%) 99.0 99.6 Ethylhexanol(%) 0.1

Product Name: Isopropyl myristate Synonyms: Isopropyl Myristate, 96% 25GR; IPM 100; IPM-EX; IPM-R; Radia 7730 (IPM); Isopropyl myristate Vetec(TM) reagent grade, 98%; MYRISTIC ACID ISOPROPYL ESTER MINIMU; ISO-PROPYL N-TETRADECANOATE CAS: 110-27-0 MF: C17H34O2 MW: 270.45 EINECS: 203-751-4 Melting point ~3 �°C (lit.) Boiling point 193 �°C/20 mmHg (lit.) density 0.85 g/mL at 25 �°C (lit.) vapor pressure 230 �°F storage temp. 2-8�°C solubility