Manufacturer Supply
High Quality, Commercial Production
Chemical Name: 4-Aminobenzoic Acid (PABA)
CAS: 150-13-0
Chemical Name |
4-Aminobenzoic Acid |
Synonyms |
PABA; p-Aminobenzoic Acid; p-Amino Benzoic Acid; Para-Aminobenzoic Acid |
CAS Number |
150-13-0 |
CAT Number |
RF-PI386 |
Stock Status |
In Stock, Production Scale Up to Tons |
Molecular Formula |
C7H7NO2 |
Molecular Weight |
137.14 |
Density |
1.374 g/mL at 25℃(lit.) |
Solubility |
Slightly Soluble in Water. Soluble in Methanol and Diethyl Ether. |
Brand |
Ruifu Chemical |
Item |
Specifications |
Appearance |
White Crystalline Powder or Colorless Crystals |
Identification |
IR should comply with the Reference Standard spectrum |
Identification |
UV should comply with the Reference Standard spectrum |
Assay |
98.5~101.5% |
Melting Range |
186.0~189.0℃ |
Volatile Diazoizable Substance |
≤0.002% |
Loss on Drying |
≤0.20% |
Residue on Ignition |
≤0.10% |
Arsenic (As) |
≤2ppm |
Heavy Metals |
≤0.002% |
Ordinary Impurities |
Visualization |
Total Plate Count |
≤1000cfu/g |
Yeast and Mold |
≤100cfu/g |
Salmonella |
Negative |
E. Coli |
Negative |
Test Standard |
United States Pharmacopoeia (USP) |
Usage |
Pharmaceutical Intermediates |
Package: Bottle, Aluminium foil bag, Cardboard Drum, 25kg/Drum, or according to customer's requirement.
Storage Condition: Store in sealed containers at cool and dry place; Protect from light, moisture.
4-Aminobenzoic Acid (CAS 150-13-0, also known as para-Aminobenzoic Acid or PABA because the number 4 carbon in the benzene ring is also known as the para position) acts as a gastric acid secretion inhibitor. It is employed as an intermediate in the synthesis of folate (Vitamin BX), azo dyes and cross linking agents. It is also useful in biomedical sector for the preparation of local anesthetic and ointments. It is widely used in industries to make pharmaceutical products, flavors and preservatives. It is actively involved as a UV-blocking ingredient in sun tan cosmetics.