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HomeProduct name list4-Bromo-3-methylbenzoic acid

4-Bromo-3-methylbenzoic acid

  • CAS NO.:7697-28-1
  • Empirical Formula: C8H7BrO2
  • Molecular Weight: 215.04
  • MDL number: MFCD00039526
  • EINECS: 231-713-7
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2023-12-21 17:48:05
4-Bromo-3-methylbenzoic acid Structural

What is 4-Bromo-3-methylbenzoic acid?

Synthesis

A suspension of 4-Amino-3-methylbenzoic acid (73 g, 0.483 mol) in water (411 mL) and 47percent HBr (486 mL) was stirred at 25 ℃ for 1 h and then the reaction mixture was cooled to -2 ℃. A solution of sodium nitrate (32 g, 0.463 mol) in water (100 mL) was added to the reaction mixture over 15 min, maintaining the temperature at -1 ℃ to -2°C. The reaction mixture was stirred at -1 ℃ to -2 ℃ for 1.5h. The reaction mixture was added slowly to a suspension of copper(l)bromide (73 g, 0.508 mol) in water (73 mL) and aqueous HBr (73 mL). The reaction mixture was stirred at 250C for 1 h and then digested at 70 °C for 1 h. The solid was filtered, washed with water till the pH of the filtrate was 7 and dried to obtain 4-Bromo-3-methylbenzoic acid.

Properties of 4-Bromo-3-methylbenzoic acid

Melting point: 212-216 °C(lit.)
Boiling point: 311.4±30.0 °C(Predicted)
Density  1.599±0.06 g/cm3(Predicted)
storage temp.  Sealed in dry,Room Temperature
form  Powder
pka 4.04±0.10(Predicted)
color  Yellow to orange to tan
BRN  2356649
CAS DataBase Reference 7697-28-1(CAS DataBase Reference)

Safety information for 4-Bromo-3-methylbenzoic acid

Signal word Warning
Pictogram(s)
ghs
Exclamation Mark
Irritant
GHS07
GHS Hazard Statements H315:Skin corrosion/irritation
H319:Serious eye damage/eye irritation
H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes P261:Avoid breathing dust/fume/gas/mist/vapours/spray.
P264:Wash hands thoroughly after handling.
P264:Wash skin thouroughly after handling.
P280:Wear protective gloves/protective clothing/eye protection/face protection.
P304+P340:IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P405:Store locked up.

Computed Descriptors for 4-Bromo-3-methylbenzoic acid

InChIKey KWVXDZLVCISXIB-UHFFFAOYSA-N

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