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Analytical Chemistry

Standard

Lauric acid

(143-07-7)
Intermediates of Liquid Crystals

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Butyl ether

(142-96-1)
Dibutyl ether is a chemical compound belonging to the ether family with the molecular formula of C 8H 18O. It is colorless, volatile, and flammable liquid and has peculiar ethereal smell.Liquid dibutyl ether is lighter than water. On the other hand, the vapor is heavier than air. It is not soluble in water, but it is soluble in acetone and many other organic solvents. Due to this property, dibutyl ether is used as solvent in various chemical reactions and processes. For example, phenyllithium is

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(+)-Panthenol

(81-13-0)
1. Cholinergic
2. D-Panthenol is an analogue of pantothenic acid (P190300), a member of the B complex vitamins. D-Panthenol is the biologically active enantiomer of Panthenol.
3. Immunosuppressant, mitoxantrone analogue less toxic on cardiac tissue antineoplastic

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Astaxanthin

(472-61-7)
Carotenoid pigment found mostly in animal organisms, but also occuring in plants; thought to be the precursor of astacin. Animal studies indicate that it reduces blood glucose and ameliorates several parameters of the diabetic metabolic syndrome. It improves blood flow and vascular tone in models of hypertension.

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(±)-Naproxen

(23981-80-8)
An anti-inflammatory, analgesic, antipyretic.A non-steroidal anti-inflammatory.

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Methylisothiazolinone

(2682-20-4)
1. 2-Methyl-4-isothiazolin-3-one is a isothiazolinone based biocide and preservative used in personal care products. 2-Methyl-4-isothiazolin-3-one is also used for controlling microbial growth in water-containing solution.
2. A potent biocide useful for controlling microbial growth

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Oleamide

(301-02-0)
A brain lipid that induces physiological sleep at nanomolar quantities when injected into rats.This lipid may represent a new class of biological signaling molecules

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(-)-Phenylephrine

(59-42-7)
L-Phenylephrine is an adrenergic α1A receptor agonist (Ki = 1.4 μM) that demonstrates selectivity against the α1B and α1C receptor subtypes (Kis = 23.9 and 47.8 μM, respectively). By stimulating adrenergic α1 receptors, L-phenylephrine can induce aortic smooth muscle contractions, although reported relative affinity and potency values in rabbit are 5-fold weaker compared to that of L-norepinephrine. This compound is frequently used to precontract smooth muscle in preparations designed to study t

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In the analysis work, it is often necessary to use a compound of good quality and accurate content, which is used as a comparison for detection control, or used to calibrate the instrument. This compound is called a standard. Or standard. The standard product refers to the standard substance used to determine the potency of biological products. The production department must provide the standard product expressed in units (μ) of its potency when it is approved as a quality standard for biological products. According to the application, the standard products for inspection can be divided into biological standard products for biological verification of biological products, endocrine drugs, antibiotics and so on.
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