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4-Methoxybenzeneboronic acid, 97+% - CAS 5720-07-0 - Formula C7H9BO3


Certificate of Analysis

4-Methoxybenzeneboronic acid, 97+%

CAS: 5720-07-0 MDL: MFCD00039139  
Not regulated for shipping
Alternate Name: 4-Boronoanisole
4-Methoxyphenylboronic acid


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Chemical Properties

Formula: C7H9BO3  Melting point: 202-208°
Formula weight: 151.96  

Literature References

GC reagent for diols: J. Chromat., 158, 33 (1978), 186, 307 (1979).

For an illustrative example of the silver oxide promoted Suzuki coupling with sensitive ɑ-halo enones, under extremely mild conditions, see: Org. Synth., 75, 69 (1997):

Other References

Beilstein: 2936912
Harmonized Tariff Code:   2931.90

GHS Hazard and Precautionary Statements

Hazard Statements : H315-H319-H335

Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.

Precautionary Statements : P261-P280-P305+P351+P338-P304+P340-P405-P501A

Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Harmful or Irritant

Risk & Safety

Risk Phrases: 36/37/38
Irritating to eyes, respiratory system and skin.
Safety Phrases: 26-37
In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. Wear suitable gloves.
RTECS: CY8975000