The product, High Quality p-aminobenzoic acid with CAS number 150 - 13 - 0, is a well - known chemical compound. Its molecular formula is C₇H₇NO₂, and the molecular weight is approximately 137.14 g/mol. It appears as a white to slightly yellow crystalline powder. This product is known for its high purity, which ensures its effectiveness in various applications. The high - quality standard of this p - aminobenzoic acid meets strict quality control requirements, guaranteeing its reliability for different end - uses.
It has a melting point in the range of 187 - 189°C and is sparingly soluble in water but more soluble in ethanol and ether. The product is produced under advanced manufacturing processes, which help to maintain its consistent quality and performance.
1. **Cosmetics Industry**: p - aminobenzoic acid is widely used in the cosmetics industry. It is a common ingredient in sunscreen products because it can absorb ultraviolet rays, especially UVB rays. This property helps protect the skin from sunburn and premature aging caused by sun exposure. Besides sunscreen, it can also be found in some skin - care products due to its potential antioxidant properties, which may help in reducing free - radical damage to the skin.
2. **Medical Field**: In the medical field, it has been used in some medications. It can act as a precursor for the synthesis of folic acid in the body. Additionally, it has been investigated for its potential role in treating certain skin conditions, such as vitiligo, although more research is needed in this area.
3. **Chemical Synthesis**: It serves as an important intermediate in the synthesis of various chemicals. It can be used to produce dyes, pigments, and other organic compounds. The unique chemical structure of p - aminobenzoic acid allows it to participate in a variety of chemical reactions, making it a versatile building block in the chemical industry.
**In Cosmetics**: When formulating sunscreen or skin - care products, the recommended concentration of p - aminobenzoic acid usually ranges from 2% to 5%. It should be dissolved in appropriate solvents, such as ethanol or propylene glycol, before being added to the product base. Thorough mixing is required to ensure uniform distribution of the compound in the final product.
**In Chemical Synthesis**: For chemical synthesis purposes, the amount of p - aminobenzoic acid used depends on the specific reaction and the stoichiometry of the reaction. It should be handled in a well - ventilated laboratory environment, following standard chemical safety procedures. Protective equipment, such as gloves and goggles, should be worn during handling.
**Cosmetics Case**: A well - known cosmetic company decided to develop a new line of sunscreen products. They incorporated p - aminobenzoic acid at a concentration of 3% in their formula. After conducting extensive clinical trials on a group of volunteers, it was found that the sunscreen provided excellent protection against UVB rays. The volunteers reported fewer sunburns and less skin redness after sun exposure. The product was well - received in the market, and sales increased significantly due to its proven effectiveness.
**Chemical Synthesis Case**: A chemical research laboratory was working on synthesizing a new type of dye. They used p - aminobenzoic acid as a key intermediate. By carefully controlling the reaction conditions, they were able to obtain a high - yield and high - purity dye product. The unique properties of p - aminobenzoic acid contributed to the success of the synthesis, and the new dye showed excellent color - fastness and stability, which had potential applications in the textile industry.
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