Description

2,2-Dimethylpropane-1,3-Diyl Bisheptanoate is a high-purity diester compound, also known as neopentyl glycol diheptanoate. This specialty chemical is valued for its excellent solvency, low volatility, and favorable compatibility profile, making it a versatile intermediate and functional additive. It is primarily sought by manufacturers in the polymer, lubricant, and personal care industries for its role in plasticizer formulations, synthetic lubricant bases, and emollient systems.

Application

• Polymer Plasticizer: Acts as a monomeric plasticizer and co-stabilizer in PVC, polyurethane, and other polymer systems, enhancing flexibility and low-temperature performance.
• Synthetic Lubricant Base Stock: Serves as a high-performance base fluid or viscosity modifier in synthetic engine oils, compressor oils, and greases, offering thermal stability and low pour point.
• Personal Care Emollient: Used in cosmetic and skincare formulations as a non-greasy, spreading emollient and solvent for active ingredients.
• Chemical Intermediate: Functions as a key building block in organic synthesis for pharmaceuticals, agrochemicals, and specialty surfactants.
• Adhesive & Sealant Formulation: Imparts plasticity and improves adhesion in high-performance sealants, caulks, and pressure-sensitive adhesives.
• Coating Additive: Employed as a coalescing agent or plasticizer in paints, inks, and coatings to improve film formation and durability.

Basic Information

Item	Detail
Product Name	2,2-Dimethylpropane-1,3-Diyl Bisheptanoate
CAS No.	27841-04-9
Molecular Formula	C19H36O4
Molecular Weight	328.49 g/mol
Synonyms	Neopentyl Glycol Diheptanoate; 2,2-Dimethyl-1,3-propanediol Diheptanoate; Heptanoic Acid, 2,2-Dimethyl-1,3-propanediyl Ester; NPG Diheptanoate; 1,3-Propanediol, 2,2-dimethyl-, Diheptanoate; Bis(heptanoyloxymethyl)-2,2-dimethylpropane
EINECS	248-696-7

Quality Control

Our 2,2-Dimethylpropane-1,3-Diyl Bisheptanoate is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including assay, identity confirmation, and impurity profiling, to ensure it meets precise customer specifications and industry benchmarks. Certificates of Analysis (COA) documenting purity, physical properties, and conformance are available for every shipment upon request.

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 strong bases and incompatible materials such as strong oxidizing agents. For long-term storage, consider using an inert atmosphere to maintain product integrity.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Acid Value	≤ 1.0 mg KOH/g
Water Content (KF)	≤ 0.1%
Refractive Index (20°C)	1.440 - 1.445
Density (20°C)	0.930 - 0.950 g/mL

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