5-Bromo-3-pyridinecarboxaldehyde Cas:113118-81-3

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Product Description:

Product Name: 5-Bromo-3-pyridinecarboxaldehyde CAS NO: 113118-81-3

 

Synonyms:

5-Bromopyridine-3-Carboxaldehyde;

5-BroMo-3-pyridinecarboxaldehyde;

3-Bromo-5-formylpyridine;

 

Chemical & Physical Properties:

Appearance: White to off-white crystalline powder

Assay :≥99.0%

Density: 1.683 g/cm3

Boiling Point: 251.1℃ at 760 mmHg

Melting Point: 98-102℃

Flash Point: 105.7℃

Sensitive: Air sensitive

 

Safety Information:

Hazard Code: Xn

HS Code: 2933399090

Risk Statements: R22; R36/38; R43

Safety Statements: S26-S36/37/39

 

5- bromopyridine -3- formaldehyde Chinese alias 5- bromonicotinaldehyde, is an organic chemical substance, which can be used as pharmaceutical chemical synthesis intermediates. In the prior art, the synthesis method of 5-bromopyridine 3-formaldehyde is to prepare 5-bromopyridine 3-formaldehyde by exchanging 3, 5-dibromopyridine with butyl lithium bromide Chemicalbook lithium under the condition of ultra-low temperature (-78℃), or 3, 5-dibromopyridine as the raw material, at -15℃, butyl lithium and butyl magnesium chloride. Synthesis of 5- bromopyridine -3- formaldehyde; The above two synthetic reactions can only be carried out under ultra-low temperature conditions, and the reaction conditions are harsh and difficult to industrialize.

 

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