Description

Peg7-T-Butly Ester CAS NO 361189-64-2 is a specialized polyethylene glycol (PEG) derivative, specifically a heptaethylene glycol mono-tert-butyl ether ester. This compound is valued for its role as a versatile intermediate and functional additive, offering a unique balance of hydrophilicity and controlled reactivity. It is primarily sought after by formulators and process chemists in the pharmaceutical, agrochemical, and specialty polymer industries. Its structure makes it particularly useful for modifying solubility, acting as a non-ionic surfactant, or serving as a protecting group in complex synthetic pathways.

Application

• Pharmaceutical Intermediate: Used in the synthesis of prodrugs or to impart hydrophilic properties to active pharmaceutical ingredients (APIs).
• Polymer Modification: Acts as a functional monomer or chain transfer agent in the production of specialty polyethers and co-polymers.
• Agrochemical Formulations: Employed as a surfactant or adjuvant to enhance the dispersion and absorption of pesticides and herbicides.
• Cosmetic & Personal Care: Functions as a mild surfactant, emulsifier, or viscosity modifier in skin care and cleansing products.
• Chemical Synthesis: Serves as a protecting group for alcohols or as a polar, non-volatile solvent in sensitive reactions.
• Lubricant & Functional Fluid Additive: Used to modify the properties of synthetic lubricants and industrial fluids.

Basic Information

Product Name	Peg7-T-Butly Ester
CAS No.	361189-64-2
Molecular Formula	C19H40O8
Molecular Weight	396.52 g/mol
Synonyms	Heptaethylene glycol mono-tert-butyl ether; 2-[2-[2-[2-[2-[2-[2-(2-Methoxyethoxy)ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethanol, 1-(1,1-dimethylethyl) ether; tert-Butyl heptaethylene glycol ether; PEG-7 tert-Butyl Ether; 2-{2-[2-(2-{2-[2-(2-Methoxyethoxy)ethoxy]ethoxy}ethoxy)ethoxy]ethoxy}ethyl tert-butyl ether; tert-Butoxypolyethylene Glycol (n~7); Poly(oxy-1,2-ethanediyl), α-(1,1-dimethylethyl)-ω-methoxy-
EINECS	Contact for details

Quality Control

Our Peg7-T-Butly Ester is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure high purity and consistent performance. Standard quality parameters include assay (by HPLC), identity confirmation (IR, NMR), and control of key impurities. Certificates of Analysis (COA) documenting all test results are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive). Keep the container tightly sealed to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%

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