• 原料直供
• 试剂商城
• 直接询价

分类

• {SNA} Alphabetical Listings, Flavors and Fragrances, Q-Z
• {Chemicalbook} 食品添加剂: 食用香料（增香剂）: 天然等同香料和人造香料
• {uni_hamburg} no charge; carbocycle; aromatic; 6RingOnly; 6ring; ester; 1fragment
• {SNA} Building Blocks, C8 to C9, Carbonyl Compounds, Chemical Synthesis, Esters, Organic Building Blocks

相关文献及参考

• Short: III/35D2 Title: Nuclear Magnetic Resonance (NMR) Data: Chemical Shifts for Carbon-13, Part 2: Aromatic Compounds Author: Mikhova, B. Editor: Gupta, R.R.; Lechner, M.D. Source: Landolt-Börnstein, New Series Volume: III/35D2 Year: 2005 Keyword: aromatic compounds; carbon-13; chemical shift; coupling constant; molecular structure ISBN: 978-3-540-20189-2 ISBN: 3-540-20189-0 Internet Resource: DOI:10.1007/b83345 RefComment: VIII, 291 p., Hardcover RefComment: Written for Science and engineers in the fields of physics, chemistry and physical chemistry who inted to use NMR to study the structure and the binding of molecules Abstract: Nuclear Magnetic Resonance (NMR) is based on the fact that certain nuclei exhibit a magnetic moment, orient by a magnetic field, and absorb characteristic frequencies in the radiofrequency part of the spectrum. The spectral lines of the nuclei are highly influenced by the chemical environment i.e. the structure and interaction of the molecules. NMR is now the leading technique and a powerful tool for the investigation of the structure and interaction of molecules. The present Landolt-Börnstein volume III/35 Nuclear Magnetic Resonance (NMR) Data is therefore of major interest to all scientists and engineers who intend to use NMR to study the structure and the binding of molecules. Volume III/35 "NMR-Data" is divided into several subvolumes and parts. Subvolume III/35A contains the nuclei 11B and 31P, subvolume III/35B contains the nuclei 19F and 15N, subvolume III/35C contains the nucleus 1H, subvolume III/35D contains the nucleus 13C, subvolume III/35E contains the nucleus 17O, and subvolume III/35G contains the nucleus 77Se. More nuclei will be presented later.
• Short: III/35E Title: Nuclear Magnetic Resonance (NMR) Data: Chemical Shifts for Oxygen-17 Author: Duddeck, H.; Toth, G.; Simon, A. Editor: Gupta, R.R.; Lechner, M.D. Source: Landolt-Börnstein, New Series Volume: III/35E Year: 2002 Keywor

安全信息

GHS Symbol

TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Administration onto the skin
SPECIES OBSERVED        : Rodent - rabbit
DOSE/DURATION           : 2100 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   FCTXAV Food and Cosmetics Toxicology.  (London, UK)  V.1-19, 1963-81.  For
   publisher information, see FCTOD7.  Volume(issue)/page/year: 12,391,1974

TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 1900 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   FCTXAV Food and Cosmetics Toxicology.  (London, UK)  V.1-19, 1963-81.  For
   publisher information, see FCTOD7.  Volume(issue)/page/year: 12,391,1974

其他信息

• 食品添加剂最大允许使用量最大允许残留量标准:添加剂中文名称 允许使用该种添加剂的食品中文名称 添加剂功能 最大允许使用量（g/kg） 最大允许残留量（g/kg） 乙酸对-甲酚酯 食品 食品用香料 用于配制香精的各香料成分不得超过在GB 2760中的最大允许使用量和最大允许残留量
• 参考质量标准:FCC，1997 含量(一种异构体) ≥98.0% 折射率(n D 20 ) 1.499～1.502 相对密度(d 25 25 ) 1.044～1.050 酸值(用酚红试液) ≤1.0 游离甲酚 ≤1.0% 醇中溶解度(OT-43) 1ml溶于2mL 70%乙醇
• 方法一:由对苯酚与醋酐直接酯化而成。
• 方法二:由对甲酚在少量硫酸存在下与醋酐反应：反应后经水洗、蒸馏而得成品。
• 用途一:用作调香剂
• 图谱信息:乙酸对甲酚酯 (140-39-6)Raman光谱 乙酸对甲酚酯 (140-39-6)核磁图( 13 CNMR) 乙酸对甲酚酯 (140-39-6)核磁图( 1 HNMR) 乙酸对甲酚酯 (140-39-6)质谱(MS) 乙酸对甲酚酯 (140-39-6)红外图谱(IR1)
• 上游原料:4-甲基苯酚
• 使用限量:FEMA(mg/kg)：软饮料0.5～1.0；冷饮1.3；糖果4.3；焙烤食品4.4；胶姆糖0.30～220；调味品10。 适度为限(FDA§172．515，2000)。
• Sigma Aldrich:140-39-6(sigmaaldrich)
• 用途二:GB 2760一96规定为允许使用的食用香料。主要用于配制
• FEMA:3073
• 用途三:适用于水仙、黄水仙与大花茉莉香型。在白兰、紫丁香、铃兰、风信子、香罗兰、依兰香型中也较宜，有增加浓郁花香的效用，用量一般在1%以下，在食用香精中有时用于坚果香等型香精中。
• 含量分析:按酯测定法(OT-18)中方法二测定。所用试样量为1.2g。滴定时改用酚红试液(TS-166)作为指示剂。计算中的当量因子(e)取75.09。 最好按GT-10-4中非极性柱方法测定。