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Home > Analytical Chemistry > Standard (Find 1884 items)

Analytical Chemistry

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Elementary Substance

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Standard

Linseed oil

(8001-26-1)
The botanical properties of linseed oil are listed as emollient, antiinflammatory, and healing. Derived from the flax plant seed, the oil is obtained by expression with little or no heat.

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4-Methylbiphenyl

(644-08-6)
4-Methylbiphenyl is an endogenous metabolite.

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Sunflower oil

(8001-21-6)
Modified alkyd resins, soap, edible oil, margarine, shortening, dietary supplement. sunflower seed oil is expressed from sunflower seeds. sunflower oil (Helianthus annuus) is commonly used as a carrier oil, it softens and smooths the skin. Sunflower oil has a high linoleic acid and other essential fatty acid content. In addition, it contains lecithin, carotenoids, and waxes. This oil is considered a non-comedogenic raw material. Sunflower Oil is a highly polyunsaturated oil obtained from sunflow

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Tyramine

(51-67-2)
Medication.

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Palm oil

(8002-75-3)
Crude oil is used to make soap and hot tin plating. Refined oil is edible

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Tempol

(2226-96-2)
A free radical scavenger Spin label for EPR studies; phase transfer dehydration catalyst; antioxidant; inhibitor of olefin free radical polymerization. Tempol, a water-soluble piperidine nitroxide derivative having nonspecific radical-scavenging and superoxide dismutase (SOD) activity, protects cultured aerobic, but not hypoxic, cells against radiation-induced killing. Protection does not depend on intracellular thiols and does not involve O2-depletion. Tempol reacts with peroxyl radicals and ca

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Tiamulin

(55297-95-5)
Tiamulin is a semi–synthetic analogue of pleuromutilin in which the hydroxyacetyl side chain is replaced with a larger diethylaminoethylthioacetyl moiety, providing greater hydrophobicity and an ionisable group for salt formation and greater water solubility. Tiamulin is a potent and highly selective antibiotic active against a range of Gram positive bacteria, with no cross resistance to existing antibiotic classes due to its unique mode of action. Like pleuromutilin, it inhibits protein synthes

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Octylamine

(111-86-4)
For organic synthesis

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Pyrene

(129-00-0)
Pyrene occurs in coal tar. Also obtained by the destructive hydrogenation of hard coal. Found in wastewater in aquatic environments, and possesses genotoxic characteristics relating to estrogenic/androgenic, antiestrogenic and antiandrogenic activity.

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Olive oil

(8001-25-0)
Preparation of ointment, liniment, special fabric soap. Preparation of laxatives and choleretic agents. Fabric lubricant.

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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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