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Cas Database

33216-52-3

33216-52-3

Identification

Synonyms:3,4,5-trichloro-pyridine;3,4,5-Trichlor-pyridin;

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Safety information and MSDS view more

  • Pictogram(s):IrritantXi

  • Hazard Codes:Xi

  • Signal Word:Warning

  • Hazard Statement:H315 Causes skin irritationH319 Causes serious eye irritation H335 May cause respiratory irritation

  • First-aid measures: General adviceConsult a physician. Show this safety data sheet to the doctor in attendance.If inhaled If breathed in, move person into fresh air. If not breathing, give artificial respiration. Consult a physician. In case of skin contact Wash off with soap and plenty of water. Consult a physician. In case of eye contact Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician. If swallowed Never give anything by mouth to an unconscious person. Rinse mouth with water. Consult a physician.

  • Fire-fighting measures: Suitable extinguishing media Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide. Wear self-contained breathing apparatus for firefighting if necessary.

  • Accidental release measures: Use personal protective equipment. Avoid dust formation. Avoid breathing vapours, mist or gas. Ensure adequate ventilation. Evacuate personnel to safe areas. Avoid breathing dust. For personal protection see section 8. Prevent further leakage or spillage if safe to do so. Do not let product enter drains. Discharge into the environment must be avoided. Pick up and arrange disposal. Sweep up and shovel. Keep in suitable, closed containers for disposal.

  • Handling and storage: Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Avoid exposure - obtain special instructions before use.Provide appropriate exhaust ventilation at places where dust is formed. For precautions see section 2.2. Store in cool place. Keep container tightly closed in a dry and well-ventilated place.

  • Exposure controls/personal protection:Occupational Exposure limit valuesBiological limit values Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday. Eye/face protection Safety glasses with side-shields conforming to EN166. Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU). Skin protection Wear impervious clothing. The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace. Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique(without touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands. The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and the standard EN 374 derived from it. Respiratory protection Wear dust mask when handling large quantities. Thermal hazards

Supplier and reference price view more

  • Manufacture/Brand
  • Product Description
  • Packaging
  • Price
  • Delivery
  • Purchase
  • Manufacture/Brand:TCI Chemical
  • Product Description:3,4,5-Trichloropyridine >98.0%(GC)(T)
  • Packaging:25g
  • Price:$ 83
  • Delivery:In stock
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  • Manufacture/Brand:TCI Chemical
  • Product Description:3,4,5-Trichloropyridine >98.0%(GC)(T)
  • Packaging:5g
  • Price:$ 23
  • Delivery:In stock
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  • Manufacture/Brand:SynQuest Laboratories
  • Product Description:3,4,5-Trichloropyridine 98%
  • Packaging:250 g
  • Price:$ 196
  • Delivery:In stock
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  • Manufacture/Brand:SynQuest Laboratories
  • Product Description:3,4,5-Trichloropyridine 98%
  • Packaging:25 g
  • Price:$ 23
  • Delivery:In stock
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  • Manufacture/Brand:SynQuest Laboratories
  • Product Description:3,4,5-Trichloropyridine 98%
  • Packaging:100 g
  • Price:$ 74
  • Delivery:In stock
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  • Manufacture/Brand:Sigma-Aldrich
  • Product Description:3,4,5-Trichloropyridine 98%
  • Packaging:1g
  • Price:$ 54
  • Delivery:In stock
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  • Manufacture/Brand:Matrix Scientific
  • Product Description:3,4,5-Trichloropyridine 98%
  • Packaging:100g
  • Price:$ 72
  • Delivery:In stock
  • Buy Now
  • Manufacture/Brand:Matrix Scientific
  • Product Description:3,4,5-Trichloropyridine 98%
  • Packaging:25g
  • Price:$ 21
  • Delivery:In stock
  • Buy Now
  • Manufacture/Brand:Matrix Scientific
  • Product Description:3,4,5-Trichloropyridine 98%
  • Packaging:5g
  • Price:$ 10
  • Delivery:In stock
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  • Manufacture/Brand:Labseeker
  • Product Description:3,4,5-TRICHLOROPYRIDINE 95
  • Packaging:50g
  • Price:$ 1467
  • Delivery:In stock
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Relevant articles and documentsAll total 1 Articles be found

Lewis Acidic Boranes, Lewis Bases, and Equilibrium Constants: A Reliable Scaffold for a Quantitative Lewis Acidity/Basicity Scale

Mayer, Robert J.,Hampel, Nathalie,Ofial, Armin R.

supporting information, p. 4070 - 4080 (2021/01/29)

A quantitative Lewis acidity/basicity scale toward boron-centered Lewis acids has been developed based on a set of 90 experimental equilibrium constants for the reactions of triarylboranes with various O-, N-, S-, and P-centered Lewis bases in dichloromethane at 20 °C. Analysis with the linear free energy relationship log KB=LAB+LBB allows equilibrium constants, KB, to be calculated for any type of borane/Lewis base combination through the sum of two descriptors, one for Lewis acidity (LAB) and one for Lewis basicity (LBB). The resulting Lewis acidity/basicity scale is independent of fixed reference acids/bases and valid for various types of trivalent boron-centered Lewis acids. It is demonstrated that the newly developed Lewis acidity/basicity scale is easily extendable through linear relationships with quantum-chemically calculated or common physical–organic descriptors and known thermodynamic data (ΔH (Formula presented.)). Furthermore, this experimental platform can be utilized for the rational development of borane-catalyzed reactions.

Process route upstream and downstream products

Process route

pyridine
110-86-1

pyridine

chlorine
7782-50-5

chlorine

3,4,5-trichloropyridine
33216-52-3

3,4,5-trichloropyridine

3,5-dichloropyridine
2457-47-8

3,5-dichloropyridine

Conditions
Conditions Yield
at 220 ℃;
pyridine
110-86-1

pyridine

chlorine
7782-50-5

chlorine

3-Chloropyridine
626-60-8

3-Chloropyridine

3,4,5-trichloropyridine
33216-52-3

3,4,5-trichloropyridine

2,3,4,5,6-pentachloropyridine
2176-62-7

2,3,4,5,6-pentachloropyridine

3,5-dichloropyridine
2457-47-8

3,5-dichloropyridine

Conditions
Conditions Yield
at 170 ℃; beim Behandeln des Pyridin-hydrochlorids;
hydrogenchloride
7647-01-0,15364-23-5

hydrogenchloride

4-(nitroamino)pyridine
26482-55-3

4-(nitroamino)pyridine

4-Chloropyridine
626-61-9

4-Chloropyridine

3,4,5-trichloropyridine
33216-52-3

3,4,5-trichloropyridine

3,5-dichloro-4-aminopyridine
22889-78-7

3,5-dichloro-4-aminopyridine

Conditions
Conditions Yield
at 100 ℃;
C<sub>23</sub>H<sub>17</sub>BCl<sub>3</sub>N

C23H17BCl3N

3,4,5-trichloropyridine
33216-52-3

3,4,5-trichloropyridine

triphenylborane
960-71-4

triphenylborane

Conditions
Conditions Yield
In dichloromethane; at 20 ℃;
C<sub>26</sub>H<sub>23</sub>BCl<sub>3</sub>N

C26H23BCl3N

3,4,5-trichloropyridine
33216-52-3

3,4,5-trichloropyridine

tri-p-tolylborane
7297-94-1

tri-p-tolylborane

Conditions
Conditions Yield
In dichloromethane; at 20 ℃;
C<sub>23</sub>H<sub>14</sub>BCl<sub>3</sub>F<sub>3</sub>N

C23H14BCl3F3N

3,4,5-trichloropyridine
33216-52-3

3,4,5-trichloropyridine

tris(4-fluorophenyl)borane
47196-74-7

tris(4-fluorophenyl)borane

Conditions
Conditions Yield
In dichloromethane; at 20 ℃;
C<sub>23</sub>H<sub>14</sub>BCl<sub>6</sub>N

C23H14BCl6N

3,4,5-trichloropyridine
33216-52-3

3,4,5-trichloropyridine

tris(4-chlorophenyl)borane
28445-30-9

tris(4-chlorophenyl)borane

Conditions
Conditions Yield
In dichloromethane; at 20 ℃;
C<sub>26</sub>H<sub>23</sub>BCl<sub>3</sub>NO<sub>3</sub>

C26H23BCl3NO3

3,4,5-trichloropyridine
33216-52-3

3,4,5-trichloropyridine

tris(4-methoxyphenyl)borane
28445-29-6

tris(4-methoxyphenyl)borane

Conditions
Conditions Yield
In dichloromethane; at 20 ℃;
3,4,5-trichloropyridine
33216-52-3

3,4,5-trichloropyridine

3,5-dichloro-4-hydroxypyridine
17228-71-6

3,5-dichloro-4-hydroxypyridine

Conditions
Conditions Yield
Multi-step reaction with 2 steps
1: aqueous-alcoholic ammonia / 150 °C / im Rohr
2: nitrosylsulfuric acid; sulfuric acid
With ammonium hydroxide; nitrosylsulfuric acid; sulfuric acid;
3,4,5-trichloropyridine
33216-52-3

3,4,5-trichloropyridine

3,5-dichloro-4-aminopyridine
22889-78-7

3,5-dichloro-4-aminopyridine

Conditions
Conditions Yield
With ammonium hydroxide; at 150 ℃; im Rohr;

Global suppliers and manufacturers

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  • Simagchem Corporation
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  • Shanghai Upbio Tech Co.,Ltd
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  • Chemwill Asia Co., Ltd.
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  • LIDE PHARMACEUTICALS LIMITED
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  • Bluecrystal chem-union
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