Description

Heptahelicene CAS NO 16914-68-4 is a high-purity, non-planar polycyclic aromatic hydrocarbon (PAH) characterized by its unique helical, or screw-shaped, molecular structure. This chiral, π-conjugated system is of significant scientific and commercial interest due to its exceptional chiroptical properties and potential for inducing circularly polarized luminescence. It is primarily sought by researchers and developers in advanced material science, organic electronics, and asymmetric catalysis for creating novel functional materials.

Application

• Organic Electronics: As a chiral dopant or active layer component in organic light-emitting diodes (OLEDs) for circularly polarized light emission.
• Chiral Nanomaterials: Serves as a molecular building block for constructing helical supramolecular assemblies and nanostructures with defined handedness.
• Asymmetric Catalysis: Potential use as a chiral ligand or framework in transition metal catalysis for enantioselective synthesis.
• Molecular Sensors: Development of chiroptical sensors for the detection and discrimination of chiral analytes.
• Nonlinear Optics (NLO): Investigation for second- and third-order nonlinear optical properties due to its extended π-system and non-centrosymmetric structure.
• Academic & Industrial R&D: Fundamental research into helicene chemistry, chirality transfer, and photophysical behavior.

Basic Information

Product Name	Heptahelicene
CAS No.	16914-68-4
Molecular Formula	C30H18
Molecular Weight	378.47 g/mol
Synonyms	[7]Helicene; Hepta[7]helicene; 1,12:2,3:4,5:6,7:8,9:10,11:13,14-Heptabenzo[a,c,e,g,i,k,m]cyclotetradecapentaene; Benzo[5]helicene; Dibenzo[c,g,p]chrysene
EINECS	240-970-3

Quality Control

Our Heptahelicene is manufactured under strict quality management protocols. Each batch undergoes comprehensive analytical characterization to ensure identity, purity, and chiral integrity. Standard quality parameters include chiral HPLC purity, spectroscopic identification (NMR, IR), and thermal analysis. A detailed Certificate of Analysis (COA) is provided with every shipment, documenting batch-specific results.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). The product is light-sensitive (store away from light) and should be handled under an inert atmosphere when appropriate for prolonged experimental use to prevent potential oxidation.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0% (Area %)
Enantiomeric Purity (Chiral HPLC)	Contact for details
Melting Point	Contact for details
Specific Rotation	Contact for details
Heavy Metals	< 20 ppm

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