Description

Butyl sec-Butyl Phthalate is a specialized phthalate ester compound, identified by CAS number 97621-09-5. This chemical serves as a high-performance plasticizer and solvent, valued for its ability to impart flexibility and durability to polymer matrices. It is a critical material for manufacturers in the plastics, coatings, and specialty chemical industries seeking reliable intermediate solutions.

Application

• Primary plasticizer for polyvinyl chloride (PVC) and other vinyl polymers to enhance flexibility and workability.
• Solvent and coalescing agent in specialty coatings, adhesives, and sealant formulations.
• Intermediate in the synthesis of more complex chemical compounds and specialty esters.
• Additive in lubricants and functional fluids to modify viscosity and performance characteristics.
• Component in the production of specialty elastomers and synthetic rubbers.
• Used in cable insulation, synthetic leather, and flexible film applications.

Basic Information

Product Name	Butyl sec-Butyl Phthalate
CAS No.	97621-09-5
Molecular Formula	C₁₆H₂₂O₄
Molecular Weight	278.34 g/mol
Synonyms	1,2-Benzenedicarboxylic acid, butyl sec-butyl ester; sec-Butyl butyl phthalate; Butyl 1-methylpropyl phthalate; Phthalic acid, butyl sec-butyl ester; BBP (ambiguous, use with caution); Dibutyl phthalate isomer; Butyl (1-methylpropyl) benzene-1,2-dicarboxylate
EINECS	Contact for details

Quality Control

Our Butyl sec-Butyl Phthalate is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. Certificates of Analysis (COA) documenting key parameters 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, well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flame. Ensure containers are kept tightly sealed to prevent moisture absorption and contamination.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Acidity (as Phthalic Acid)	≤ 0.05%
Water Content (KF)	≤ 0.1%
Specific Gravity (20°C)	1.050 - 1.070
Refractive Index (20°C)	1.490 - 1.510

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