2016年4月14日星期四

Substance P for sale


Product Name: Substance P

CAS Registry Number: 33507-63-0

Molecular formula: C63H98N18O13S

Product Description:
In neuroscience, substance P (SP) is a neuropeptide: an undecapeptide which acts as a neurotransmitter and as neuromodulator.It belongs to the tachykinin family of neuropeptide. Substance P and neuropeptides are closely related neurokinin A (NKA) consisting of a polyprotein precursor by differential splicing of the preprotachykinin gene.

function:
Substance P is an important element in the perception of pain. Sensory function of the substance P is believed that the transmission of pain-related information to the central nervous system. Substance P coexisting with glutamate, an excitatory neurotransmitter in primary afferents that respond to painful stimulation.SP has been implicated in the regulation of mood disorders, anxiety, stress, reinforcement, neurogenesis, respiratory rate, neurotoxicity, nausea / vomiting, pain and nociception.

Ceftiofur HCl price


Product Name: Ceftiofur HCl
CAS-No. 103980-44.5
Molecular formula: C19H17N5O7S3Cl
Molecular Weight: 560.03
Product Description: antibiotics. It is mainly used for the treatment of bacterial respiratory diseases in pigs.

Mephedrone suppliers


Product Name: Mephedrone
CAS: 1189805-46-6
Molecular formula: C11H15NO
Molecular Weight: 177.242g / mol
Description: Mephedrone is a stimulant and entactogen synthetic drug amphetamine and cathinone classes.It in the form of tablets or powder comes, can swallow with the user, snort or inject, the effects similar to MDMA, amphetamines and cocaine.

Where to buy Botulinum toxin


Product Name: Botulinum toxin
CAS: 93384-43-1
Molecular formula: C6760H10447N1743O2010S32
Molecular Weight: 149322.3223 kDa
Description:
Although botulinum toxin is lethal naturally occurring substance, it can be used as effective and powerful medication.It a protein that is produced by the bacterium Clostridium botulinum, and is extremely neurotoxic.

Stigmasterol for sale


A collaborative study was conducted to evaluate a method for the determination of campesterol, stigmasterol and beta-sitosterol in saw palmetto raw materials and food supplements at concentrations> 1.00 mg / 100 g of a sample of 2 -3 g based. The test samples were hydrolyzed at high temperature with a solution of ethanolic KOH. Insaponifiable phytosterols (campesterol, stigmasterol and beta-sitosterol) was extracted with toluene. Phytosterols were derivatized ethers trimethylsilyl then quantified by gas chromatography with detection by flame ionization of hydrogen. Twelve blank samples, one of which was attached, were tested successfully with 10 employees. Recoveries obtained for the sample that has been set. The results were 99.8, 111 and 111% for campesterol, stigmasterol and beta-sitosterol, respectively. For repeatability relative standard deviation (RSDr) was 3.93 to 17.3% for campesterol, 3.56 to 22.7% for stigma and 3.70 to 43.9% for beta-sitosterol. RSDR for reproducibility was 7.97 to 22.6%, from 0 to 26.7% and from 5.27 to 43.9% for campesterol, stigmasterol and beta-sitosterol, respectively. Overall, the study leader approved 5 materials with acceptable values ​​for HORRAT campesterol, stigmasterol and beta-sitosterol from 1.02 to 2.16 range.

5-Cyanoindole Abstract

The nitrile bandwidth (CN) of 5-Cyanoindole tryptophan stretching vibration is a significant expansion upon hydration. So it was a useful infrared sensor hydration of the local environment of proteins are suggested. the spectral broadening results However, the molecular mechanism of this hydration is induced in uncoated function known experimental are difficult interpretation. We examine how the interaction of water with different locations of 5-Cyanoindole, the side chain of tryptophan 5-cyano affecting C N stretching a molecular electronic structure combined approach / dynamic. It should be noted that in addition to these interactions with the nitrile, water interactions with the indole ring to play an important role in mediating the C = N stretching. Thus, this study provides a molecular basis to understand how the hydration is C≡N band 5-cyanotryptophan elongation. In addition, an empirical model, which includes the interaction of both the nitrile and indole groups of water, was developed for the prediction of the stretching band C≡N by molecular dynamics simulations.

3,4-Dimethoxy Phenylethylamine


Product name:3,4-Dimethoxy Phenylethylamine
CAS: 120-20-7
Molecular Formula:C10H15NO2
Formula Weight:     181.23
Description:
Melting point:12-15 ºC
Boiling point:324.1 ºC at 760 mmHg
Flash Point:132.8 ºC
Density:1.074 g/mL at 25 °C(lit.)
Chemical property:Colorless transparent liquid.Soluble in water.
Use:Used as an intermediate in the organic synthesis.