3 beta acetoxy - 5 - etienic acid simple attribute value!

3 beta acetoxy - 5 - etienic acid is a colorless crystals
Molecular formula: C22H32O4
Molecular weight: 360.49 g/Moore
Melting point of 238 ~ 240 ℃. General reagent content more than 99%.
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What is Acetonitrile?

Acetonitrile and name methyl acrylic, colorless liquid, extremely easy volatile, there are similar to the ether odor, have good solvent performance, can dissolve many kinds of organic, inorganic and gas material. Have certain toxicity, with water and alcohol infinite miscibility. Acetonitrile can happen typical nitrile reaction, and is used in the preparation of many typical nitrogenous compounds, it is an important organic intermediates.
Acetonitrile the main use is solvent. As extraction butadiene solvent, solvent of synthetic fiber and some special coating solvent. In the oil industry for the from petroleum hydrocarbon to remove tar, phenolic substances such as solvent.
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2 - Acetonaphthone related attributes and use instructions!

2 - Acetonaphthone is pale yellow liquid, insoluble in water, soluble in ethanol, ether and acetone
CAS number: 93-08-3
Molecular formula: C12H10O
Molecular weight: 170.2
Density: 1.1171 (21.5 ° C)
Melting point: 52 ℃ ~ 56
Boiling point: 301 ~ 303 ℃
Index: 1.6280
Use description: used for organic synthesis intermediates
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Acetotromoglucose parameters is introduced.

Acetotromoglucose white to light yellow crystalline or powder. Molecular formula C14H19BrO9 molecular weight 411.20. To light sensitive. The influence of water decomposition. 1 g product dissolved in 20 ml anhydrous ethanol, soluble in methanol, not soluble in ether, chloroform, acetone, ethyl acetate and benzene, slightly soluble in petroleum ether. Often add 1% ~ 2% as a stabilizer of calcium carbonate. Months of application period in the refrigerated condition, vacuum dryer can be used to expand. Melting point of 88 ~ 89 ℃. Specific rotation [α] D19 199.3 ° (C = 3, chloroform), [α] D15 230.3 ° (C = 9:1, benzene). Sugar create sugar structure and a kind of important intermediates II. This product should be sealed in a dry, avoid light below 0 ℃ save.
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An overview of Acetic acid glacial and identify!

Acetic acid and Acetic acid glacial said, widely exists in nature, it is a kind of organic compound, is an important hydrocarbon containing oxygen derivative, is typical of fatty acid. Vinegar is the main component of acetic acid. General vinegar contains 3% ~ 5% acetic acid. Acetic acid is recognized as the vinegar inside sour taste and the source of the excitant odour. In the household, acetic acid dilute solution is often used as detergent. The food industry, in food additives E260 list, the provisions of the acetic acid is a kind of acidity regulator.
Acetic acid glacial can be identified by its smell. If join ferric chloride (III), generation product is a deep red and will be after acidizing disappear, the color reaction can also identify acetic acid. Acetic acid and three arsenic oxide reaction generating oxidation dimethyl arsenic, through the product of acetic acid can be identified.

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2 - Acetamidophenol drug interactions.

1) in long-term drinking or application other liver enzyme revulsant, especially application barbiturates or anticonvulsive drug of the patients, the long-term use of this product, more have occurred in the risk of lier toxicity.
2) this product and chloramphenicol share, can prolong the latter half life, enhance its toxicity.
3) and anticoagulants share, can strengthen anticlotting, therefore, to adjust the dosage of anticoagulants.
4) a large amount for a long time and aspirin and other non-steroidal anti-inflammatory drug share, significantly increased the risk of kidney toxicity.
5) this product and disease-resistant poison Zidovudine (Zidovudine) party, can increase its toxicity, should avoid application at the same time
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2 - Acetamidofluorene simple attribute!

CAS RN 53-96-3
EINECS number 200-188-6
Points son type C15H13NO
Points son quantity 223.2698
Dangerous mark T: Toxic
Risk term R23/24/25; R46;
Safety term S22; S24/25; S45;
2 - Acetamidofluorene is pale yellow crystalline powder with melting point 194 ℃, soluble in ethanol, propylene and fat solvents, insoluble in water, should be put in dry place.

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The Aminoethanol attribute!

Aminoethanol is a colorless liquid, at room temperature for colorless transparent and viscous liquid, moisture absorption and ammonia smelly. Molecular weight 61.08 steam pressure 0.80 kPa / 60 ℃ flash point: 93 ℃ refractive index: 1.4540 melting point 10.5 ℃ boiling point: 170.5 ℃ solubility and water miscibility, slightly soluble in benzene, and water, methanol, ethanol, acetone and miscibility, slightly soluble in ether and carbon tetrachloride. The alkaline solution. Strong hygroscopicity, can absorb acid gas, after heating and will absorb gas release. There are emulsion and the bubble effect. Can and inorganic acids and organic acid was born into saline, and anhydride function generating ester. Its amino of hydrogen atoms can be acyl halide, halon replacement, etc. Combustible! In the burning flame and high temperature have the danger, steam toxic. Close degree relative density (water = 1) 1.02; Relative density (air = 1) 2.11 stability stable risk marker 20 (alkaline corrosion product) main use used as chemical reagent, pesticide, medicine, solvent, dye intermediates, rubber accelerator, corrosion inhibitors and surface active agent and so on. They are also used as acid gas absorption agent, emulsifying agent, plasticizer, rubber vulcanization agent, printing and dyeing brightening agent, fabric mothproofing agent, etc. Can be made of epoxy ethane and ammonia reaction system in a ethanolamine, diethanolamine, triethanolamine.


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2 - cis, 4 - trans - Abscisic acid properties and other products!

2 - cis, 4 - trans - Abscisic acid CAS number: [14375-45-2] molecular formula: C15H20O4 molecular weight: 264.32 appearance: white crystal purity: 98% melting point: 183-186 ° C loss on drying: < 0.5% ignition residue: < 0.1%, explain the other high-tech: 80% 90% high-tech, high-tech chemical name: (+ / -) - Abscisic acid (2 - shun, 4 - trans) - 5 - (1 - hydroxy - 2,6,6 - three methyl - 4 - oxygen generation - 2 - cyclohexene - 1 - base) - 3 - methyl - 2, 4 - pentadiene acid; S - ABA application: this hormone abscisic acid (ABA) play regulatory role in the host for the physiological process all higher and lower plant (Davies and Jones, 1991; Zeevaart, creer mann 1988). Abscisic acid mediated resistance response in higher plants, is an important signal, regulating stomatal opening, in concert with other plant signal compound compounds, be involved in the mediation of pathogens and hurt. Seeds, ABA to promote the development of seeds and embryos mature, synthesis of storage products (protein and fat), dry, participate in maintenance dormancy inhibiting germination, cell apoptosis (Zeevaart and creer mann, 1988, Davis and Jones, 1991, Thomas, 1993 beth grams, etc. 1999). At the same time, ABA affect plant system structure, including the root growth and form, and root to shoot ratio.

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