Description

B-Paba CAS NO 6929-40-4 is a high-purity chemical compound, specifically the butyl ester of para-aminobenzoic acid (PABA). This versatile intermediate is valued for its role in synthesizing advanced UV filters and other specialty organic molecules. It is essential for manufacturers in the personal care, pharmaceutical, and fine chemical industries seeking reliable, high-quality raw materials for their formulations.

Application

• Primary Intermediate for UV Filters: A key building block in the synthesis of Padimate O (Octyl Dimethyl PABA) and other PABA-derivative organic sunscreens used in sun care and cosmetic products.
• Pharmaceutical Synthesis: Serves as a protected intermediate or precursor in the development of certain active pharmaceutical ingredients (APIs) and local anesthetics.
• Fine Chemical Production: Utilized in organic synthesis for creating dyes, pigments, and other complex aromatic compounds.
• Research & Development: Employed in academic and industrial R&D laboratories for studying photostability, chemical reactions, and developing new functional materials.

Basic Information

Product Name	B-Paba
CAS No.	6929-40-4
Molecular Formula	C11H15NO2
Molecular Weight	193.24 g/mol
Synonyms	Butyl 4-aminobenzoate; Butyl p-aminobenzoate; 4-Aminobenzoic acid butyl ester; Benzoic acid, 4-amino-, butyl ester; Butyl PABA; Butyl ester of PABA; Padimate B; Escalol 506
EINECS	230-047-6

Quality Control

Our B-Paba is produced under a stringent quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via IR spectroscopy, to ensure it meets exacting specifications. Certificates of Analysis (COA) documenting all test results are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). Keep away from heat sources and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.5%
Melting Point	57°C - 61°C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.