Description

4-(2,2,3-Trimethyl-3-cyclopenten-1-yl)-2-butenenitrile is a high-value, synthetic fragrance intermediate known for its unique woody and ambergris-like olfactory profile. This compound is essential for perfumers and flavorists seeking to create sophisticated, long-lasting, and complex scent accords. It is primarily utilized by manufacturers in the fragrance, flavor, and fine chemical industries for the production of premium consumer goods.

Application

• Fragrance Industry: A key building block for creating woody, amber, and musk-type fragrance notes in perfumes, colognes, and personal care products.
• Flavor Industry: Used in trace amounts to impart complex, nuanced notes in specialty flavor formulations.
• Fine Chemical Synthesis: Serves as a versatile intermediate for the synthesis of more complex aroma chemicals and pharmaceutical candidates.
• Household Products: Incorporated into detergents, fabric softeners, and air fresheners to provide a stable and pleasant background scent.
• Cosmetic Formulations: Used in lotions, soaps, and hair care products for its fragrance-fixing properties.

Basic Information

Product Name	4-(2,2,3-Trimethyl-3-cyclopenten-1-yl)-2-butenenitrile
CAS No.	71042-97-2
Molecular Formula	C12H17N
Molecular Weight	175.27 g/mol
Synonyms	Ambrocenide; Ambroxan nitrile; 3a,4,5,6,7,7a-Hexahydro-4,6,6,7a-tetramethyl-1H-indene-5-carbonitrile; 4-(2,2,3-Trimethylcyclopent-3-en-1-yl)but-3-enenitrile; (E)-4-(2,2,3-Trimethylcyclopent-3-en-1-yl)but-3-enenitrile; Ambrox nitrile; Amber nitrile.
EINECS	Contact for details

Quality Control

Our 4-(2,2,3-Trimethyl-3-cyclopenten-1-yl)-2-butenenitrile is produced under strict quality management systems to ensure batch-to-batch consistency and purity suitable for fragrance applications. Quality is verified through comprehensive analytical testing including GC, IR, and NMR. A Certificate of Analysis (COA) detailing purity, identity, and olfactory profile is provided with every shipment.

Storage

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

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 98.0%
Odor	Characteristic woody, amber
Refractive Index (20°C)	1.495 - 1.505
Specific Gravity (20/20°C)	0.950 - 0.970

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