Simpe Description of 6-Methoxy-3,4-Dihydronaphthalen-2-One

In chemistry (particularly organic chemistry), methoxy refers to the functional group consisting of a methyl group bound to oxygen. This alkoxy group has the formula O–CH3.

The simplest case is another methyl group giving dimethyl ether; other methoxy ethers are methoxyethane and methoxypropane. In the field of natural compounds, examples bearing methoxy groups are O-methylated flavonoids. It is also found in Mescaline and its analogues, 2C-B, 2C-E and 2C-P for instance.

Item name:6-methoxy-3,4-dihydronaphthalen-2-one

CAS:2472-22-2

Molecular Formula:C11H12O2

Formula Weight:     176.21

Description of 6-Methoxy-3,4-Dihydronaphthalen-2-One:

Density:1.124 g/cm3

Melting Point:28-35 ºC

Boiling Point:114-116 ºC (0.2 mmHg),319.4 °C at 760 mmHg

Flash Point:>110 ºC

Appearance:White Crystal.

Use:Used as medicine intermediate. Storage:0-6°C

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A Little Knowledge of Piperonylamine

Item name:Piperonylamine  

CAS:             2620-50-0  Molecular Formula:C8H9NO2

Formula Weight:             151.16

Description of Piperonylamine:

Boiling point:138-139 °C13 mm Hg(lit.)

Flash Point:>230 °F

Density:1.214 g/mL at 25 °C(lit.)

Solubility:Stable under ordinary conditions.0.9 g/100 mL

Apperance:clear to yellow liquid.  Use:used in making veterinary medicines, insecticides and pediculicides.

N-Propargyl-piperonylamine can be prepared by reacting 3,4-methylenedioxy-benzylamine with a propargyl halide of the formula Hal–CH2 –C.tbd.CH, where Hal is I, Br, Cl or F, bromine being preferred, and, optionally converting the base thus obtained into an addition salt.

The invention also provides a therapeutic composition comprising together with a physiologically acceptable excipient, a pharmaceutically active amount of N-propargyl-piperonylamine or a non-toxic salt thereof.

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What Is Norethisterone?

Norethisterone (or norethindrone) (or 19-nor-17α-ethynyltestosterone) is a molecule used in some combined oral contraceptive pills, progestogen only pills and is also available as a stand-alone drug. It is a progestogen and can be used to treat premenstrual syndrome, painful periods, abnormal heavy bleeding, irregular periods, menopausal syndrome (in combination with oestrogen), or to postpone a period. It is also commonly used to help prevent uterine hemorrhage in complicated non-surgical or pre-surgical gynecologic cases. Norethindrone was the first orally highly active progestin to be synthesized. It was synthesized for the first time by chemists Luis Miramontes, Carl Djerassi, and George Rosenkranz at Syntex in Mexico City in 1951. It was the progestin used in one of the first two oral contraceptives. It is often used as the related ester, norethisterone acetate.

Norethisterone is a man-made form of progesterone, a naturally occurring female sex hormone. It is referred to as a progestogen and it has a number of uses. Low doses are used to prevent pregnancy, or as hormone replacement therapy (HRT).

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Knowledge of Trenbolone Base

Trenbolone is a steroid used by veterinarians on livestock to increase muscle growth and appetite. To increase its effective half-life, trenbolone is not used in an unrefined form, but is rather administered as ester derivatives such as trenbolone acetate, trenbolone enanthate or trenbolone cyclohexylmethylcarbonate (Parabolan). Plasma lipases then cleave the ester group in the bloodstream leaving free trenbolone.

Item Name:Trenbolone base

Chemical Name:4,9,11-estratrien-17β-ol-3-one

Molecular Formula: C18H22O2   CAS No.:10161-33-8

Description: white or almost white crystalline powder

Trenbolone acetate is often referred to as “Fina” by users, because injectible trenbolone acetate is often prepared from Finaplix H pellets, an ear implant used by cattle ranchers to maintain the weight of cattle during shipping to slaughter. Studies have shown that Trenbolone does improve muscle mass in cattle.

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Main Applications of Dioctyl Phthalate

 

Dioctyl phthalate (DOP) is a colorless oily liquid, specific gravity of 0.9861 (20/20), melting point -55, boiling point 370 (atmospheric pressure), insoluble in water, soluble in alcohol, ether, mineral oil and most organic solvents.

Dioctyl phthalate is a general-purpose plasticizer for PVC resin processing can also be used for the processing of ground-based resin, acetate resin, ABS resin and rubber and other polymers can also be used in making paints, dyes, dispersants the DOP plasticized PVC can be used in the manufacture of artificial leather, agricultural film, packaging materials, cables and so on.

Organic solvents, GC Stationary Industry as the most widely used plasticizer, cellulose acetate, poly vinyl acetate, and the vast majority of industrial use of synthetic resin and rubber have good compatibility. Dioctyl phthalate has a good overall performance mixed performance, high plasticizing efficiency, low volatility, good low temperature flexibility, water extraction, high electrical performance, heat resistance and weather resistance.   HVAC for testing the filtration efficiency of the high efficiency filter. Because of the high efficiency filter, 0.3um (micron) is Chuan Toushuai the largest particle size, so to test the high efficiency filter, filtration efficiency of dioctyl phthalate.

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Reactions of Maleic Anhydride

Maleic anhydride (cis-butenedioic anhydride, toxilic anhydride, 2,5-dioxofuran) is an organic compound with the formula C2H2(CO)2O. It is the acid anhydride of maleic acid and in its pure state it is a colourless or white solid with an acrid odour.

The chemistry of maleic anhydride is very rich, reflecting its ready availability and bifunctional reactivity. It hydrolyzes, producing maleic acid, cis-HOOC–CH=CH–COOH. With alcohols, the half-ester is generated, e.g.,

cis-HOOC–CH=CH–COOCH3.

Maleic anhydride is a potent dienophile in Diels-Alder reactions. It is also a ligand for low-valent metal complexes, examples being Pt(PPh3)2(MA) and Fe(CO)4(MA).

Maleic anhydride dimerizes in a photochemical reaction to form cyclobutane tetracarboxylic dianhydride (CBTA). This compound is used in the production of polyimides and as an alignment film for liquid crystal displays.

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Description of 16-Dehydropregnenolone Acetate

• Item name: 16-Dehydropregnenolone acetate
• CAS:979-02-2 Molecular Formula: C23H32O3
• Molecular Weight: 356.5g/mol
• Specification: CP/BP98
• Description of 16-Dehydropregnenolone Acetate: This product is yellow and off-white crystalline powder with its melting point 170-178°C.

When part of a salt, the formula of the acetate anion is written as CH3CO2−, C2H3O2−, or CH3COO−. Chemists abbreviate acetate as OAc− or AcO−. Thus, HOAc is the abbreviation for acetic acid, NaOAc for sodium acetate, and EtOAc for ethyl acetate. The abbreviation “Ac” (or “AC”) is also sometimes encountered in chemical formulas to indicate the acetate ion. This abbreviation is not to be confused with the symbol of actinium, the first element of the actinides series. For example, the formula for sodium acetate might be abbreviated as “NaAc”, rather than “CH3COONa”. Care should also be taken to avoid confusion with peracetic acid when using the OAc abbreviation; for clarity and to avoid errors when translated, HOAc should be avoided in literature mentioning both compounds.

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The Solubility of 16a,17a-Epoxyprogesterone

Item name:16a,17a-Epoxyprogesterone

CAS No.: 1097-51-4

Molecular formula: C21H28O3

Molecular Weight: 328.45

Purity: ≥ 98.0%

MDL number: MFCD00055948

EC No.: 214-147-5

16a,17a-Epoxyprogesterone  is a kind of white crystall powder with its melting point 200°C. This product should be stored at −20°C. It is most commonly used as an important intermediate for the synthesis of sex hormones and other steroid hormone drugs.

The solubilities of 11α-hydroxy-16α,17α-epoxyprogesterone in methanol, ethanol, acetone, ethyl acetate, and acetic acid were measured using an isothermal method from 283 K to 323 K. A laser monitoring observation technique was used to determine the dissolution of the solid phase in a solid + liquid mixture. The solubility of 11α-hydroxy-16α,17α-epoxyprogesterone in the above solvents increased in the order ethanol < methanol < ethyl acetate < acetone < acetic acid. The experimental solubility data was correlated with a semiempirical equation.

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An Introduction of Creatininase

Item name:Creatininase (C-1E)

CAS:      9025-13-2

Creatininase is a member of the urease-related amidohydrolases, the family of hydrolases, those acting on carbon-nitrogen bonds other than peptide bonds, specifically in cyclic amides. The systematic name of this enzyme class is creatinine amidohydrolase. This enzyme is also called creatinine hydrolase. This enzyme participates in arginine and proline metabolism.

In enzymology, a creatininase (EC 3.5.2.10) is an enzyme that catalyses the hydrolysis of creatinine to creatine, which can then be metabolised to urea and sarcosine by creatinase.

creatinine + H2O creatine

Thus, the two substrates of this enzyme are creatinine and H2O, whereas its product is creatine.

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Uses of ChitoClea

ChitoClear chtiosan is proven to be the purest chitosan possible. Odorless, colorless and tasteless, ChitoClear is free of allergens, viruses and other contaminants. The combination of quality raw materials from untainted waters and a unique processing technology allows Primex to produce the purest and most effective chitosan on the market today.

The positive charge of the ChitoClear molecules attracts negatively charged red blood cells, making an efficient hemostatic agent.

ChitoClear is used for the clarification of fermented beverages, and as a flocculant agent to avoid juice, wine and beer to by hazy.

ChitoClear chitosan is the only self-affirmed GRAS (generally recognized as safe) chitosan on the market today. Primex has achieved this novel status for ChitoClear through a rigourous process involving an intensive review of all safety toxicology data by a panel of scientific experts. GRAS status is essential for use of ChitoClear in food applications in the USA.

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