3-Bromo-4-methylbenzoic acid(CAS#7697-26-9)
| Risk Codes | R22 - Harmful if swallowed R36/37/38 - Irritating to eyes, respiratory system and skin. R37/38 - Irritating to respiratory system and skin. R36 - Irritating to the eyes |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S37 - Wear suitable gloves. |
| UN IDs | UN 2811 6.1/PG 3 |
| WGK Germany | 3 |
| HS Code | 29163990 |
| Hazard Class | IRRITANT |
| Packing Group | Ⅲ |
Introduction
3-Bromo-4-methylbenzoic acid is an organic compound with the chemical formula C8H7BrO2. The following is a description of the nature, use, preparation and safety information of 3-Bromo-4-methylbenzoic acid:
Nature:
-Appearance: White solid crystal
-Melting point: 112°C-115°C
-Boiling point: about 320°C (decomposition)
-Soluble: Soluble in chloroform, dichloromethane and methanol, slightly soluble in acetone and ethanol
Use:
- 3-Bromo-4-methylbenzoic acid can be used as an important intermediate in organic synthesis and is commonly used in the synthesis of various natural products and drugs.
-It can also be used in research in the fields of synthetic dyes, materials science and medicine.
Preparation Method:
- 3-Bromo-4-methylbenzoic acid can be synthesized by attaching Ponzi bromide to 4-methylbenzoic acid and then heating in the presence of a chlorine compound or a bromine compound.
-Another common synthesis method is to chlorinate p-toluic acid, and then react the obtained product with potassium bromide.
Safety Information:
- 3-Bromo-4-methylbenzoic acid No specific toxicity or risk has been reported. However, as a chemical, use appropriate safety measures, such as wearing protective gloves and glasses, and avoid inhalation or contact with skin.
-When handling or storing the compound, follow relevant safety procedures and ensure adequate ventilation.
-Appropriate handling procedures and environmental standards should be followed when disposing of the compound or laboratory waste associated with it.
3-Bromo-4-methylbenzoic acid (CAS 7697-26-9) is a versatile brominated aromatic building block widely used in medicinal chemistry and organic synthesis. The bromine at the 3-position enables efficient palladium-catalyzed cross-coupling reactions (Suzuki-Miyaura, Buchwald-Hartwig, Sonogashira) to rapidly introduce diverse aryl, heteroaryl, or alkyl substituents, while the carboxylic acid group allows amidation or esterification for further derivatization. This intermediate serves as a key precursor for the synthesis of biaryl-containing drug candidates, including kinase inhibitors (e.g., EGFR, BTK, CDK), anti-inflammatory agents, and antimicrobial compounds. It is also utilized in agrochemical research for developing herbicides and fungicides with enhanced crop protection profiles. Its rigid aromatic core improves metabolic stability and target binding affinity, facilitating structure-activity relationship (SAR) studies and library construction. High purity ensures reproducible results in high-throughput screening and scalable GMP manufacturing. Xinchem offers custom synthesis, custom chemical synthesis, and contract manufacturing of this essential building block with flexible scaling from R&D to commercial tons. Contact us today for a competitive quote and reliable global supply.
