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2012/03/30

Zinc Glycinate suppliers,Zinc Glycinate price,Zinc Glycinate for sale

Description:
Our zinc glycinate is a high-tech artefact with the capital additive of zinc glycinate chelate, which can be anon captivated and activated by animal body.Zinc Glycinate-- Zinc promotes advantageous allowed and prostate action and supports agitator action associated with tissue synthesis, activity metabolism and cartilage ineralization.
Product Feature:
Easy acrid in baptize and baffling in ethanol.
Directions: Take one abridged daily, or as directed by your heathcare practitioner. Serving Size 1 capsule, Servings per Container 120 Supplement Information Amount per Serving, % Circadian Value Zinc 20mg, 133% (as bis-glycinate chelate) Other Ingredients: HPMC, rice flour, stearic acid, silica, magnesium stearate.
Aplication:
Zinc glycinate s aswell an ideal artefact for complementing mineral elements.
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Zinc Glycinate,Zinc Glycinate suppliers,Zinc Glycinate price,Zinc Glycinate for sale
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biochemical reagent

2012/03/28

What is D(+)-Digitoxose?


English name:D(+)-Digitoxose

English aliases:2,6-Dideoxy-D-ribohexose; Digitoxose; 2,6-dideoxy-D-ribo-hexopyranose; 2,6-dideoxy-alpha-D-ribo-hexopyranose; 2,6-dideoxy-beta-D-ribo-hexopyranose

CAS number:527-52-6

EINECS number:208-416-6

formula:C6H12O4

Weight:148.1571

InChI:InChI=1/C6H12O4/c1-3-6(9)4(7)2-5(8)10-3/h3-9H,2H2,1H3/t3-,4+,5-,6-/m1/s1

molecular structure:



Density:1.366g/cm3

Melting point:112-100

Boiling point:320.1 at 760 mmHg

Flash point:147.4

security terms:S24/25:Avoid contact with skin and eyes.
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2012/03/26

About insulin from bovine pancreas

METHOD OF PREPARATION:
 Insulin is purified from an ethanol/phosphoric acid extract of bovine pancreas by multiple ammonium sulfate and isoelectric precipitations. It is then crystallized without zinc followed by crystallization with zinc. The zinc content of the final product is approximately 0.5%. Zinc can be removed by solubilizing the insulin in dilute acetic acid, adding excess EDTA to chelate the zinc, and then precipitating the insulin at its pI.7
STABILITY / STORAGE STABILITY:
Insulin should be stored protected from light in a desiccator at -20°C.
SOLUBILITY / SOLUTION STABILITY:
Insulin has low solubility at neutral pH. It can be solubilized at 2 mg/ml in dilute acetic or hydrochloric acid, pH 2-3. A stock solution can be stored frozen at -20°C in single-use aliquots. Freeze-thaw cycles should be avoided. Alternatively, it can be stored for up to 12 months at 2-8°C if it is sterile filtered through a low protein binding membrane or if it contains a suitable bacteriostat, such as 0.1% thimerosal or sodium azide. Insulin solutions cannot be autoclaved. Insulin can also be solubilized in 125 mM NaHCO3.6 However, alkaline stock solutions are not recommended since high pH increases the rate of deamidation and aggregation.
GENERAL REMARKS:
Insulin is produced in vivo in the pancreatic b-cells. The precursor protein (preproinsulin) contains a 23-30 amino acid signal peptide attached to the amino terminal of proinsulin. Proinsulin is composed of the insulin B-chain followed by a connecting peptide (C-peptide) and the A-chain. The signal peptide assists in translocatiing preproinsulin into the lumen of the endoplasmic reticulum, after which it is rapidly cleaved. Proinsulin is then transported to the Golgi complex where it is packaged into granules and converted to insulin. On secretion, equimolar amounts of insulin and C-peptide are released into the blood.
Insulin is the primary hormone responsible for controlling the cellular uptake, utilization and storage of glucose, amino acids, and fatty acids while inhibiting the breakdown of glycogen, protein, and fat. Several excellent reviews of the biochemistry, physiology, and pharmacology of insulin have been published. The insulin receptor is a tyrosine kinase that phosphorylates 185 kDa insulin receptor substrate (IRS-1) found in most cell types. IRS-1 activates phosphatidylinositol 3 kinase (IP3 Kinase).13,14,15 The Kd for insulin at its receptor is approximately 0.5 nM (approximately 2.9 ng/ml).15
Bovine insulin is often included as a medium supplement for cell culture. The concentration range is 1-10 mg/ml depending on the cell type.
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insulin from bovine pancreas
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biochemical reagent

2012/03/22

What is Deoxycorticosterone acetate?

[Indications]
Mineralocorticoid aldosterone-like role of replacement therapy for primary adrenal hypofunction
[Note]
(1) long-term or doses of this product can cause high blood pressure.
(2) the application during such service the excess sodium chloride, can cause edema, heart failure. Therefore, to control the sodium chloride dosage, as about 5 grams a day.
3 purulent infection of the skin disabled.
[Storage]
 This product shall be sealed to preserve in cool and dry place.

This Deoxycorticosterone acetate is white acicular crystal powder with the melting point 154-160 ℃. Slightly soluble in ethanol, ethyl ether, methanol, acetone,, propylene glycol and vegetable oil, hardly soluble in water.Odorlessness.Insipidity.Used in biochemical study.
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Deoxycorticosterone acetate prices
Deoxycorticosterone acetate salt hypertension inch apolipoprotein E-/- mice answers inch quickened atherosclerosis: the role of angiotensin 2.

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chemical reagent