China Largest Factory Manufacturer sales 4-Hydroxystyrene CAS 2628-17-3 CAS NO.2628-17-3

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4-Hydroxystyrene Basic information Product Name: 4-Hydroxystyrene Synonyms: 4-Vinylphenol solution 10 wt. % in propylene glycol;4-Vinylphenol,10%soln.inpropyleneglycol;4-vinylphenol,4-ethenyl-phenol,p-hydroxystyrene;PARA-VINYLPHENOL;4-Vinylphenol in 10% sol. Propylene glycol;4-Hydrozystyrene;4-Vinylphenol(4-Hydroxystyrene);4-Vinylphenol, 95%, 10 wt.% solution in propylene glycol CAS: 2628-17-3 MF: C8H8O MW: 120.15 EINECS: 220-103-6 Product Categories: Aromatic Phenols Mol File: 2628-17-3.mol   4-Hydroxystyrene Chemical Properties Melting point  73 °C Boiling point  228.85°C (estimate) density  1.04 refractive index  1.4440 FEMA  3739 | P-VINYLPHENOL Fp  >230 °F storage temp.  under inert gas (nitrogen or Argon) at 2-8°C solubility  Chloroform (Sparingly), DMSO (Slightly) form  Liquid pka 9.95±0.26(Predicted) color  Clear colorless to orange Water Solubility  Slightly miscible with water. Sensitive  Hygroscopic JECFA Number 711 BRN  506844 Stability: Light Sensitive CAS DataBase Reference 2628-17-3(CAS DataBase Reference) NIST Chemistry Reference 4-hydroxystyrene(2628-17-3) EPA Substance Registry System Phenol, 4-ethenyl- (2628-17-3)   Safety Information Hazard Codes  Xn Risk Statements  22-41 Safety Statements  26-39 WGK Germany  2 RTECS  SN3800000 HS Code  29089990 MSDS Information Provider Language ALFA English   4-Hydroxystyrene Usage And Synthesis Chemical Properties Colorless liquid Chemical Properties p-Vinylphenol has a vanilla extract odor. Occurrence 4-Vinylphenol is found in wine and beer. It is produced by the spoilage yeast Brettanomyces. When it reaches concentrations greater than the sensory threshold, it can give the wine aromas described as barnyard, medicinal, band-aids, and mousy. In wine, 4-vinylphenol can react with other molecules, such as anthocyanidins, to produce new chemical compounds. In white wines vinylphenols are dominant (4-vinylphenol 70-1 150 μg/l, 4-vinylguaiacol 10-490 μg/l) whereas, in red wines, it is the corresponding ethyl phenols. Reported found in apple, cooked asparagus, dried bonito fish, cloudberries, cooked corn, roasted peanuts, rice bran, sandalwood, wild strawberries, vetiver oil, cooked apple, black currant, red wine, white wine, rose wine, coffee, green tea cognac, tomato, partially fermented tea, microbial fermented tea, black tea, heated soybean, coriander seeds, beer, cognac, peanut butter, soybean, beans, mushrooms, starfruit, tamarind, mango, rice, sweet corn, corn oil, malt, wort, rosemary and Bourbon vanilla. Uses 4-Vinylphenol, 10 wt.% In Propylene Glycol can be used as a perfume oil mixture. Definition ChEBI: 4-hydroxystyrene is a member of the class of phenols that is styrene carrying a hydroxy substituent at position 4. It has a role as a human urinary metabolite and a human xenobiotic metabolite. It derives from a hydride of a styrene. Aroma threshold values Detection: 10 to 85 ppb Taste threshold values Taste characteristics at 60 ppm: phenolic, medicinal with sweet musty and meaty nuances.   4-Hydroxystyrene Preparation Products And Raw materials Raw materials Diethyl ether-->Acetic anhydride-->Hexane-->Pyridine-->Sodium borohydride-->Isopropyl alcohol-->Aniline-->Malonic acid-->Copper-->Hydroquinone-->Benzoyl chloride-->Quinoline-->Propylene glycol-->p-Hydroxybenzaldehyde-->Potassium bisulfate-->4'-Hydroxyacetophenone-->4-tert-Butylcatechol Preparation Products S-(-)-Carbidopa-->Ciprofibrate

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Leader Biochemical Group is a large leader incorporated industry manufacturers and suppliers of advanced refined raw materials From the year of 1996 when our factory was put into production to year of 2020, our group has successively invested in more than 52 factories with shares and subordinates.We focus on manufacture Pharm & chemicals, functional active ingredients, nutritional Ingredients, health care products, cosmetics, pharmaceutical and refined feed, oil, natural plant ingredients industries to provide top quality of GMP standards products.All the invested factories' product lines cover API and intermediates, vitamins, amino acids, plant extracts, daily chemical products, cosmetics raw materials, nutrition and health care products, food additives, feed additives, essential oil products, fine chemical products and agricultural chemical raw materials And flavors and fragrances. Especially in the field of vitamins, amino acids, pharmaceutical raw materials and cosmetic raw materials, we have more than 20 years of production and sales experience. All products meet the requirements of high international export standards and have been recognized by customers all over the world. Our manufacture basement & R&D center located in National Aerospace Economic & Technical Development Zone Xi`an Shaanxi China. Now not only relying on self-cultivation and development as well as maintains good cooperative relations with many famous research institutes and universities in China. Now, we have closely cooperation with Shanghai Institute of Organic Chemistry of Chinese Academy of Science, Beijing Institute of Material Medical of Chinese Academy of Medical Science, China Pharmaceutical University, Zhejiang University. Closely cooperation with them not only integrating Science and technology resources, but also increasing the R&D speed and improving our R&D power. Offering Powerful Tech supporting Platform for group development. Keep serve the manufacture and the market as the R&D central task, focus on the technical research.  Now there are 3 technology R & D platforms including biological extract, microorganism fermentation and chemical synthesis, and can independently research and develop kinds of difficult APIs and pharmaceutical intermediates. With the strong support of China State Institute of Pharmaceutical Industry (hereinafter short for CSIPI), earlier known as Shanghai Institute of Pharmaceutical Industry (SIPI), we have unique advantages in the R & D and industrialization of high-grade, precision and advanced products.  Now our Group technical force is abundant, existing staff more that 1000 people, senior professional and technical staff accounted for more than 50% of the total number of employees, including 15 PhD research and development personnel, 5 master′ S degree in technical and management personnel 9 people. We have advanced equipment like fermentation equipment and technology also extraction, isolation, purification, synthesis with rich production experience and strict quality control system, According to the GMP required, quickly transforming the R&D results to industrial production in time, it is our advantages and our products are exported to North and South America, Europe, Middle East, Africa, and other five continents and scale the forefront in the nation, won good international reputation.  We believe only good quality can bring good cooperation, quality is our key spirit during our production, we are warmly welcome clients and partner from all over the world contact us for everlasting cooperation, Leader will be your strong, sincere and reliable partner in China.

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4-Hydroxystyrene Basic information Product Name: 4-Hydroxystyrene Synonyms: 4-Vinylphenol solution 10 wt. % in propylene glycol;4-Vinylphenol,10%soln.inpropyleneglycol;4-vinylphenol,4-ethenyl-phenol,p-hydroxystyrene;PARA-VINYLPHENOL;4-Vinylphenol in 10% sol. Propylene glycol;4-Hydrozystyrene;4-Vinylphenol(4-Hydroxystyrene);4-Vinylphenol, 95%, 10 wt.% solution in propylene glycol CAS: 2628-17-3 MF: C8H8O MW: 120.15 EINECS: 220-103-6 Product Categories: Aromatic Phenols Mol File: 2628-17-3.mol   4-Hydroxystyrene Chemical Properties Melting point  73 °C Boiling point  228.85°C (estimate) density  1.04 refractive index  1.4440 FEMA  3739 | P-VINYLPHENOL Fp  >230 °F storage temp.  under inert gas (nitrogen or Argon) at 2-8°C solubility  Chloroform (Sparingly), DMSO (Slightly) form  Liquid pka 9.95±0.26(Predicted) color  Clear colorless to orange Water Solubility  Slightly miscible with water. Sensitive  Hygroscopic JECFA Number 711 BRN  506844 Stability: Light Sensitive CAS DataBase Reference 2628-17-3(CAS DataBase Reference) NIST Chemistry Reference 4-hydroxystyrene(2628-17-3) EPA Substance Registry System Phenol, 4-ethenyl- (2628-17-3)   Safety Information Hazard Codes  Xn Risk Statements  22-41 Safety Statements  26-39 WGK Germany  2 RTECS  SN3800000 HS Code  29089990 MSDS Information Provider Language ALFA English   4-Hydroxystyrene Usage And Synthesis Chemical Properties Colorless liquid Chemical Properties p-Vinylphenol has a vanilla extract odor. Occurrence 4-Vinylphenol is found in wine and beer. It is produced by the spoilage yeast Brettanomyces. When it reaches concentrations greater than the sensory threshold, it can give the wine aromas described as barnyard, medicinal, band-aids, and mousy. In wine, 4-vinylphenol can react with other molecules, such as anthocyanidins, to produce new chemical compounds. In white wines vinylphenols are dominant (4-vinylphenol 70-1 150 μg/l, 4-vinylguaiacol 10-490 μg/l) whereas, in red wines, it is the corresponding ethyl phenols. Reported found in apple, cooked asparagus, dried bonito fish, cloudberries, cooked corn, roasted peanuts, rice bran, sandalwood, wild strawberries, vetiver oil, cooked apple, black currant, red wine, white wine, rose wine, coffee, green tea cognac, tomato, partially fermented tea, microbial fermented tea, black tea, heated soybean, coriander seeds, beer, cognac, peanut butter, soybean, beans, mushrooms, starfruit, tamarind, mango, rice, sweet corn, corn oil, malt, wort, rosemary and Bourbon vanilla. Uses 4-Vinylphenol, 10 wt.% In Propylene Glycol can be used as a perfume oil mixture. Definition ChEBI: 4-hydroxystyrene is a member of the class of phenols that is styrene carrying a hydroxy substituent at position 4. It has a role as a human urinary metabolite and a human xenobiotic metabolite. It derives from a hydride of a styrene. Aroma threshold values Detection: 10 to 85 ppb Taste threshold values Taste characteristics at 60 ppm: phenolic, medicinal with sweet musty and meaty nuances.   4-Hydroxystyrene Preparation Products And Raw materials Raw materials Diethyl ether-->Acetic anhydride-->Hexane-->Pyridine-->Sodium borohydride-->Isopropyl alcohol-->Aniline-->Malonic acid-->Copper-->Hydroquinone-->Benzoyl chloride-->Quinoline-->Propylene glycol-->p-Hydroxybenzaldehyde-->Potassium bisulfate-->4'-Hydroxyacetophenone-->4-tert-Butylcatechol Preparation Products S-(-)-Carbidopa-->Ciprofibrate