天堂网亚洲,天天操天天搞,91视频高清,菠萝蜜视频在线观看入口,美女视频性感美女视频,95丝袜美女视频国产,超高清美女视频图片

General Description of 9-Bromophenanthrene

Aug 16,2019

Product Name

9-Bromophenanthrene

Synonyms

Phenanthrene, 9-bromo-

CAS No.

573-17-1

Molecular Formula

C14H9Br

Molecular Weight

257.13

Appearance

Off white powder

Density

No date 

Boiling point

180-190 ºC (2 mmHg)

Flash point

No date

Melting point

60-65 ºC

Solubility

Insoluble

Purity

98%

Uses
9-Bromophenanthrene is used as halogenated building block. Isotope labelled 9-Bromophenanthrene (B687200), a halogenated polycyclic aromatic hydrocarbon that has been seen to have a room temperature phosphorescence that can be induced by β-cyclodextrin (β-CD) in the presence of cyclohexane; however, trace Fe(III) causes a decrease of the RTP emission.

Preparation
An invention discloses a preparation method of 9-bromophenanthrene shown as in formula (II) that is shown in the description. The preparation method is characterized by including the steps of using phenanthrene shown in formula (I) that is shown in the description as a raw material, adding KBr bromination reagent, adding bromination reagent ZnAl-BrO3-LDHs into acetic acid and water mixed solvent, reacting at 20-70 DEG C for 2-5 hours to obtain reacted liquid that is post-treated to obtain the 9-bromophenanthrene shown as in the formula (II); the mas ratio of the phenanthrene shown as in the formula (I) to the KBr and ZnAlBrO3-LDHs is 1:0.9:0.6; the preparation method has the advantages that the preparation process is convenient, the reaction conditions are mild, low environmental pollution is caused, the requirements for equipment are low, bromine utilization rate is high, and the reaction time is short.

Safety Information of 9-Bromophenanthrene
Risk Statements:20/21/22-36/37/38
20/21/22:Harmful by inhalation, in contact with skin and if swallowed
36/37/38:Irritating to eyes, respiratory system and skin
Safety Statements:22-24/25-36-26
22:Do not breathe dust
24/25:Avoid contact with skin and eyes
36:Wear suitable protective clothing
26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
WGK Germany:3
RTECS:SF719700

  • Related articles
  • Related Qustion
See also

Cannabidiol is a chemical in the Cannabis sativa plant, also known as marijuana or hemp. Over 80 chemicals, known as cannabinoids, have been identified in the Cannabis sativa plant. While delta-9-tetrahydrocannabinol (THC) is the major active ingredient in marijuana, cannabidiol is also obtained from hemp, which contains only very small amounts of THC.....

Aug 15,2019Natural Products

Obeticholic Acid is used alone or in combination treatment for a certain liver disease (primary biliary cholangitis-PBC). This disease slowly destroys the bile ducts in the liver. When bile ducts are damaged, harmful substances can build up in bile and scar the liver. Obeticholic acid works by causing your liver to make less bile, and by helping bile flow out of the liver.....

Aug 16,2019API

9-Bromophenanthrene manufacturers

  • 9-Bromophenanthrene
  • 573-17-1 9-Bromophenanthrene
  • $10.00 / 1kg
  • 2024-12-20
  • CAS:573-17-1
  • Min. Order: 1kg
  • Purity: 99%
  • Supply Ability: 20 ton
  • 9-Bromophenanthrene
  • 573-17-1 9-Bromophenanthrene
  • $35.00 / 1KG
  • 2024-12-20
  • CAS:573-17-1
  • Min. Order: 1KG
  • Purity: 98%
  • Supply Ability: 300MT/year
  • 9-Bromophenanthrene
  • 573-17-1 9-Bromophenanthrene
  • $0.00 / 25KG
  • 2024-10-31
  • CAS:573-17-1
  • Min. Order: 1KG
  • Purity: 99%
  • Supply Ability: 500000kg