2016年3月2日星期三
Acriflavine for sale online
Product name:Acriflavine
CAS: 8048-52-0
Molecular Formula:C27H25ClN6
Formula Weight:468.98
Description:
Acriflavine is an antiseptic. It has the form of an orange or brown powder. It can be harmful to the eyes or inhaled. It is a dye and colors the skin and can cause irritation. Commercial preparations are often proflavine mixtures. It is known from a variety of trade names.
Acriflavine was used during World War II against sleeping sickness. It is derived from acridine. The hydrochloride form is more annoying than the neutral form.
Acriflavine is also used as a treatment for fungal infections of the external tank fish.In recent years acriflavin Anti-cancer activity has been demonstrated.
Isophorone diisocyanate Introduction
Isophorone diisocyanate (<99% purity) was purchased from Aldrich Chemical Corp., Milwaukee, WI (Lot # 02217JT) and was prepared in acetone / olive oil (4: 1), who also served vehicle. Primary irritation studies showed that 1.0% of minimal irritant concentration isophorone and treatment with 3.0% isophorone leads almost twice larger than 1.0% to a stimulus response. female B6C3F1 mice were sensitized by subcutaneous route at 0, 0.1%, 0.3% or 1.0% isophorone solutions daily for 5 consecutive days and 7 days later challenged with a solution of 3.0%. A 0.5% solution of 1-fluoro-2,4-dinitrobenzene (DNFB, Sigma Chem Corp.;. Lot No. 88F-3833;.> 99.0% pure as determined by HPLC) was used as positive control used. Site preparation included dermabrasion and intradermal injection of complete Freund's adjuvant in some mice. The mice were divided into groups of 8 to 10 mice / treatment group as shown in Table 1. The irritation response shown was determined by monitoring bovine serum albumin extravasation 125I in the treated area. The contact hypersensitivity response was determined the location in the challenge by monitoring the infiltration of 125I-labeled cells iododeoxyuridine.
Foundry Coke is a product of the foundry
The increased lung cancer risk among foundry workers is supposed to be associated with the gaseous inhalation of polycyclic aromatic hydrocarbons and bound particles (PAHs). These compounds are prepared from the pyrolysis of carbon-containing filling material into the molding sand. Concentrations of 20 PAHs, some of which are carcinogens, were determined in the dusty casting zone of an iron foundry by gas chromatography and mass spectrometry. Total dust was fractionated by means of a precision cascade. It was possible to distinguish exposure in micrograms / mg dust PAHs into seven size fractions of the upper particle or equal 0.36- 24.95 microns. At first it was an increase of PAH adsorbed mass concentration of particle diameter to increase to a maximum of 1.1 micrograms / mg in the dust of the 1.57-micron fraction. After that, there was a continuous reduction in PAH mass concentrations with increasing particle size. If the different weights of the seven political groups are taken into account, however, the total PAHs increased loading of individual fractions regularly with increasing particle size. The inhalable particulate material, 31.4% of the total dust, containing 49.9% of the total adsorbed PAH. The gas is on average three times more carcinogenic PAH, adsorbed with four and five rings as dust. The share of gaseous substances is equivalent to 77% of the total PAH exposure in the workplace in an iron foundry.
What is cholic acid
cholic acid is defective in people with cerebrovascular cholesterosis (CTX) and excretion of 5β-cholestane-3α, 7α, 12α, 25-tetrol connected, an intermediate product in the 25-hydroxylation pathway of cholic acid in the CTX. To set the enzymatic defect in CTX, two putative precursor colic, namely 5β- [7β-3H] cholestane-3α, 7α, 12α-triol and 5β- [24-14C] cholestane-3a, 7a, 12α, 24S, 25 -Pentol were examined both in vivo and in vitro experiments. A third precursor 5β- [7β-3H] cholestane-3α, 7α, 12α, 25-tetrol was compared with them in vitro.
2016年3月1日星期二
A integrated with inductance SMD carbonyl iron powder
Product Name: A integrated with inductance SMD carbonyl iron powder
Product Description: It is mainly applied in a body forming surface mount inductance (SMD) and pure iron powder cores, this series of carbonyl iron powder has superior compressibility, high permeability characteristics, use frequency range for 1KHZ to 5MHZ, it has the following three brands:
RDE: not insulated processing, initial permeability is more than 65.
RDEG: surface coating has 0.35% silica insulating layer, magnet breakdown voltage is more than 250v, 50v dc magnet when insulation resistance is more than 500 megohm.
RDEGS: surface coated insulating layer has 0.35% silica and 1% resin, already granulation, has good liquidity, direct press forming. More than 250v magnet breakdown voltage, 50 v dc when more than 500 megohm insulation resistance.
Synthetic diamond with carbonyl iron powder
Product Name: Synthetic diamond with carbonyl iron powder
product Description: Carbonyl is powder in the spherical and fine and high purity, uniform, larger than the surface area of the contact means with diamonds in the preparation of the high temperature graphite powder catalyst and vacuum reduction and oxygen to up to 50 ppm or down, for the growth of low melting point, a crystal nuclear useful in diamond, with respect to the catalytic synthesis routine, the diamond has a quality and a conversion rate higher.
product Description: Carbonyl is powder in the spherical and fine and high purity, uniform, larger than the surface area of the contact means with diamonds in the preparation of the high temperature graphite powder catalyst and vacuum reduction and oxygen to up to 50 ppm or down, for the growth of low melting point, a crystal nuclear useful in diamond, with respect to the catalytic synthesis routine, the diamond has a quality and a conversion rate higher.
Mark
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Average granularity
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Apparent density
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Tap density
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Fe
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C
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N
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O
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YCM
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3-5
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1.8-3.0
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≥4.0
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>97.5
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≤0.80
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≤0.70
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≤0.3
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RCM
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3-5
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1.8-3.0
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≥4.0
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≥99.5
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≤0.05
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≤0.01
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Lipstatin suppliers
Product name:Lipstatin
CAS:96829-59-3
Molecular Formula:C29H49NO5
Molecular Weight:491.073g/mol
Description:Lipstatin is a potent irreversible inhibitor of pancreatic lipase.It is a natural product, and was first popular from the Streptomyces actinobacterium toxytricini.The antiobesity drug orlistat (Xenical and Alli trade name) is a saturated derivative of lipstatin isolated .
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