China Largest Manufacturer factory sales 2-Naphthyl acetate CAS1523-11-1

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2-Naphthyl acetate Basic information Product Name: 2-Naphthyl acetate Synonyms: ACETIC ACID 2-NAPHTHYL ESTER;2-NAPHTHYL ACETATE;2-Naphthalenol,acetate;2-Naphthol, acetate;Acetic acid beta-naphthyl ester;beta-Naphthol acetate;Naphthalene, 2-acetoxy-;O-Acetyl-beta-naphthol CAS: 1523-11-1 MF: C12H10O2 MW: 186.21 EINECS: 216-194-7 Product Categories: Aromatic Esters Mol File: 1523-11-1.mol   2-Naphthyl acetate Chemical Properties Melting point  67-70 °C (lit.) Boiling point  132 °C / 2mmHg density  1.1032 (rough estimate) refractive index  1.6010 (estimate) storage temp.  -20°C solubility  methanol: 0.1 g/mL, clear Sensitive  Moisture Sensitive BRN  1868291 CAS DataBase Reference 1523-11-1(CAS DataBase Reference) NIST Chemistry Reference 2-Naphthyl acetate(1523-11-1) EPA Substance Registry System 2-Naphthalenol, acetate (1523-11-1)   Safety Information Hazard Codes  Xi Risk Statements  41 Safety Statements  26-39 WGK Germany  3 F  10-21 TSCA  Yes MSDS Information Provider Language 2-Naphthyl acetate English ACROS English SigmaAldrich English ALFA English   2-Naphthyl acetate Usage And Synthesis Chemical Properties WHITE FLUFFY POWDER Uses 2-Naphthyl Acetate is used in the staining of gels for esterase activity in the biological laboratories. An esterase substrate. Uses 2-Naphthyl acetate has been used as a substrate: in substrate sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) to examine the composition of lipases in larvae and adult specimens in the preparation of zymograms to identify proteins with lipase activity to measure non-specific esterase activity and β-esterase enzyme activity Synthesis Reference(s) Journal of the American Chemical Society, 91, p. 2162, 1969 DOI: 10.1021/ja01036a081 Purification Methods Distil the acetate in a high vaccum and/or crystallise it from pet ether (b 60-80o) or dilute aqueous EtOH. The picrate has m 80o (from EtOH). [Beilstein 6 H 644, 6 I 313, 6 II 600, 5 III 2982, 6 IV 4267.]   2-Naphthyl acetate Preparation Products And Raw materials Product Name: 1-Naphthyl acetate Synonyms: 1-naphthylacetae;aceticacidnaphthalen-1-ylester;alpha-naphtholacetate;Naphthalene, 1-acetoxy-;1-NAPHTHYL ACETATE;ACETIC ACID 1-NAPHTHYL ESTER;ACETIC ACID ALPHA-NAPHTHYL ESTER;1-Acetoxynaphthalene CAS: 830-81-9 MF: C12H10O2 MW: 186.21 EINECS: 212-599-8 Product Categories: Intermediates of Dyes and Pigments;Aromatic Esters;Cytochemistry Products;Hematology and Histology Mol File: 830-81-9.mol   1-Naphthyl acetate Chemical Properties Melting point  43-46 °C (lit.) Boiling point  118 °C / 1mmHg density  1.1032 (rough estimate) refractive index  1.6010 (estimate) Fp  113 °C storage temp.  -20°C solubility  dioxane: 0.1 g/mL, clear, colorless form  Crystalline Powder or Crystals color  White to light yellow or slightly pink Odor Odorless Sensitive  Moisture Sensitive BRN  2046403 CAS DataBase Reference 830-81-9(CAS DataBase Reference) NIST Chemistry Reference 1-Naphthyl acetate(830-81-9) EPA Substance Registry System 1-Naphthyl acetate (830-81-9)   Safety Information Hazard Codes  T,Xi Risk Statements  41-39/23/24/25-23/24/25-10 Safety Statements  26-39-24/25-22-45-36/37-16 RIDADR  UN 1993 3/PG 3 WGK Germany  3 RTECS  QL2975500 F  10-21 TSCA  Yes HS Code  29153900 MSDS Information Provider Language 1-Naphthyl acetate English ACROS English SigmaAldrich English ALFA English   1-Naphthyl acetate Usage And Synthesis Chemical Properties 1-Naphthyl acetate is white to light yellowish or slightly pink Uses 1-Naphthyl acetate is usually used in a rapid staining method for identification of macrophages; counts by this method were confirmed by the more complex morphological criteria, by phagocytosis, and by the presence of Fc receptors. Uses 1-Naphthyl Acetate is used in preparation method for synthesizing Ph Acetate derivative by Acetylation of Phenol compound. Uses 1-Naphthyl acetate may be used in a rapid staining method for identification of macrophages; counts by this method were confirmed by the more complex morphological criteria, by phagocytosis, and by the presence of Fc receptors. It may be employed as substrate to investigate the distribution of non-specific carboxylic esterases (EC 3.1.1) in the digestive tract of perch, Perm fliiviatilis L. Synthesis Reference(s) Synthetic Communications, 21, p. 989, 1991 DOI: 10.1080/00397919108019787 Tetrahedron Letters, 30, p. 95, 1989 DOI: 10.1016/S0040-4039(01)80332-4 General Description 1-Naphthyl acetate is a 1-napthyl ester. Mechanism of photo-Fries rearrangement of 1-naphthyl acetate has been studied using steady state photolysis and laser flash photolysis. Kinetics of photo-Fries rearrangement of 1-napthyl acetate has been studied using steady-state, time-resolved chemically induced dynamic nuclear polarization (CIDNP) and flash photolysis methods. Purification Methods Chromatograph the acetate on silica gel and crystallise as the 2-isomer below. The 2,4,7-trinitrofluoren-9-one complex has m 120o (from EtOH). [Beilstein 6 H 608, 6 III 2928, 6 IV 4217.]   1-Naphthyl acetate Preparation Products And Raw materials Product Name: Carbobenzoxyhydrazide Synonyms: hydrazinecarboxylicacid,phenymethylester;phenymethylhydrazinecarboxylate;Phenylmethyl N-aminocarbamate;Carbobenzoxyhydrazide,98%;Carbobenzoxyhydrazid;Carbobenzyloxyhydrazine;Hydrazincarboxylic Acid Benzyl Ester;NSC 2287 CAS: 5331-43-1 MF: C8H10N2O2 MW: 166.18 EINECS: 226-230-3 Product Categories: Phosgene Derivatives Mol File: 5331-43-1.mol   Carbobenzoxyhydrazide Chemical Properties Melting point  65-68 °C (lit.) Boiling point  294.38°C (rough estimate) density  1.2265 (rough estimate) refractive index  1.6180 (estimate) Fp  >230 °F storage temp.  Keep in dark place,Sealed in dry,Room Temperature solubility  DMSO, Methanol pka 10.56±0.20(Predicted) form  Solid color  Beige Water Solubility  Soluble in water (slightly), methanol and DMSO. BRN  1952982 InChIKey RXUBZLMIGSAPEJ-UHFFFAOYSA-N CAS DataBase Reference 5331-43-1(CAS DataBase Reference) NIST Chemistry Reference Hydrazinecarboxylic acid, phenylmethyl ester(5331-43-1) EPA Substance Registry System Hydrazinecarboxylic acid, phenylmethyl ester (5331-43-1)   Safety Information Hazard Codes  Xi Risk Statements  41 Safety Statements  26-36 WGK Germany  3 RTECS  MV1724950 TSCA  Yes HS Code  29280000 MSDS Information Provider Language Carbobenzoxyhydrazide English SigmaAldrich English ACROS English ALFA English   Carbobenzoxyhydrazide Usage And Synthesis Chemical Properties LIGHT BEIGE SHINY FLAKES Uses Benzyl Carbazate has been shown to prevent the occurrence of oligonucleosome-sized DNA fragmentation in the cell-free system. Uses Benzyl carbazate is used as a reagent for preparation of benzyloxycarbonyl (Z, Cbz) hydrazides of carboxylic acids, particularly N-protected amino acids. Subsequent hydrogenolysis gives the hydrazide which can be converted to the azide for coupling with a further amino acid residue by the azide method. It is also used in the preparation of simple acyl or sulfonyl hydrazides avoiding diacylation.   Carbobenzoxyhydrazide Preparation Products And Raw materials Preparation Products tert-Butyl 4-hydrazinylpiperidine-1-carboxylate Product Name: CALCIUM CITRATE MALATE Synonyms: 2-Hydroxy-1,2,3-propanetricarboxylic acid calcium salt mixt. with hydroxybutanedioic acid calcium salt;Citric acid malic acid calcium;Fruit acid calcium;Calcium Citrate Malate Fine Granular;142606-53-9 CALCIUM CITRATE MALATE CAS: 142606-53-9 MF: C16H14Ca4O19 MW: 0 EINECS:   Product Categories:   Mol File: 142606-53-9.mol   CALCIUM CITRATE MALATE Chemical Properties   Safety Information HS Code  2918195000 MSDS Information   CALCIUM CITRATE MALATE Usage And Synthesis Uses Calcium Citrate Malate, is the calcium salt of citric acid and malic acid with variable composition. It is water soluble and when dissolved, it releases calcium ions and a calcium-citrate complex into intestinal cells.   CALCIUM CITRATE MALATE Preparation Products And Raw materials

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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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