Description

4-Hydroxybenzoic Acid 2,5,5,9-Tetramethyl-4-Hydroxy-2,9-Cycloundecadien-1-Yl Ester is a specialized organic ester compound with the CAS number 74724-29-1. This high-purity intermediate is valued for its unique molecular structure, which makes it a critical building block in advanced organic synthesis and specialty chemical manufacturing. It is primarily sought by R&D laboratories and production facilities in the pharmaceutical, fragrance, and fine chemical industries for developing novel compounds and high-value products.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of novel active pharmaceutical ingredients (APIs) and complex drug molecules.
• Fragrance and Flavor Synthesis: Used in the creation of unique, high-value aromatic compounds and flavoring agents due to its specific ester backbone.
• Fine Chemical Production: Acts as a crucial building block for manufacturing specialty chemicals, including advanced polymers and performance materials.
• Research & Development: Employed in academic and industrial R&D settings for exploring new chemical reactions and developing proprietary synthetic pathways.
• Cosmetic Ingredient Synthesis: Utilized in the production of specialty esters and UV-absorbing compounds for advanced cosmetic formulations.

Basic Information

Product Name	4-Hydroxybenzoic Acid 2,5,5,9-Tetramethyl-4-Hydroxy-2,9-Cycloundecadien-1-Yl Ester
CAS No.	74724-29-1
Molecular Formula	C22H30O4
Molecular Weight	358.47 g/mol
Synonyms	2,5,5,9-Tetramethyl-4-hydroxy-2,9-cycloundecadien-1-yl 4-hydroxybenzoate; 4-Hydroxybenzoic Acid Cycloundecadienyl Ester; Benzoic acid, 4-hydroxy-, 2,5,5,9-tetramethyl-4-hydroxy-2,9-cycloundecadien-1-yl ester; Cycloundecadienyl paraben derivative; 74724-29-1; Paraben-based macrocyclic ester
EINECS	Contact for details

Quality Control

Our production of 4-Hydroxybenzoic Acid 2,5,5,9-Tetramethyl-4-Hydroxy-2,9-Cycloundecadien-1-Yl Ester adheres to stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to ensure identity, purity, and consistency. Certificates of Analysis (COA) documenting all critical parameters are available for every shipment, providing full traceability and compliance with cGMP guidelines where applicable.

Storage

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

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm

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