3,3'-Dichloro-N,N'-bis(4-methoxybenzylidene)benzidine TCI B0878

Chemical Identity

CAS No.: 3540-78-1
PubChem: CID 635553·SID 87563853
Formula: C28H22Cl2N2O2
Molecular weight: 489.4 g/mol
Purity: >98.0%(T)

Full identifiers (IUPAC, SMILES, InChIKey)

IUPAC: N-[2-chloro-4-[3-chloro-4-[(4-methoxyphenyl)methylideneamino]phenyl]phenyl]-1-(4-methoxyphenyl)methanimine
SMILES: COC1=CC=C(C=C1)C=NC2=C(C=C(C=C2)C3=CC(=C(C=C3)N=CC4=CC=C(C=C4)OC)Cl)Cl
InChIKey: JWTLKDNURNVSBN-UHFFFAOYSA-N

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Dokumen Keamanan & Mutu

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CoA (Certificate of Analysis)

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TCI B0878 3,3'-Dichloro-N,N'-bis(4-methoxybenzylidene)benzidine is a double Schiff base, also called a bis-imine. It is built on a 3,3'-dichlorobenzidine backbone, and both of its amino groups are condensed with 4-methoxybenzaldehyde (anisaldehyde). The result is a long, rigid, conjugated molecule in which imine groups link the aromatic rings. In the laboratory it is classed as a non-heterocyclic building block. It is of interest for organic materials research, imine chemistry, and the synthesis of benzidine-derived compounds.

Researchers choose this compound for its elongated, nearly linear shape with a methoxy group at each end. This shape is common in mesogenic molecules, which are molecules that may show liquid crystalline phases. The C=N imine bonds are reversible, so they can be hydrolysed or reduced to secondary amines as a synthesis requires. The extended conjugation across the whole molecule also gives it distinctive optical behaviour, which makes it relevant to UV-Vis spectroscopy and photophysical studies.

In Indonesia, this compound is mainly useful to materials chemistry and physical organic chemistry research groups at universities and research institutes. Typical work includes studying how molecular shape relates to material behaviour, exploring the reactivity of imine linkages, and preparing benzidine-based derivatives for further study. Its well-defined, symmetrical structure also makes it a good reference molecule for student research projects and theses on conjugated organic systems, where reproducible starting materials from an established brand such as TCI matter.

Related TCI products

Liquid crystal and mesogen research: the elongated, nearly linear molecule with methoxy groups at both ends matches the typical shape of mesogenic compounds studied for liquid crystalline phases.
Imine chemistry studies: the two reversible C=N bonds allow controlled hydrolysis experiments and investigations of Schiff base formation and stability under different reaction conditions.
Synthesis of secondary amines: the imine linkages can be reduced to secondary amines, giving a route to new benzidine-derived compounds for further synthetic work.
UV-Vis spectroscopy and photophysics: extended conjugation across the aromatic rings and imine groups gives distinctive optical properties that are well suited to absorption and photophysical measurements.
Organic materials development: as a rigid, conjugated non-heterocyclic building block, it serves as a starting point for exploring structure-property relationships in functional organic materials.

Brand	TCI (product code B0878)
CAS number	3540-78-1
Molecular formula	—
Purity	—
Category	Chemistry > Building Blocks > Non-Heterocyclic Building Blocks
Pack sizes	as listed for this product on the AMI Scientific product page
Physical form	refer to the TCI product specification and certificate of analysis
Storage	keep tightly closed in a cool, dry place away from moisture and light, following the TCI label and SDS

Store this compound in its original tightly sealed container in a cool, dry, well-ventilated place. Protect it from moisture, because imine bonds can hydrolyse in the presence of water. Keep it away from strong acids, strong oxidising agents, and direct light. Because it is a benzidine derivative, handle it with care: work in a fume hood, wear nitrile gloves, safety goggles, and a lab coat, and avoid creating or breathing dust. Avoid skin and eye contact, and wash hands thoroughly after use. Label all secondary containers clearly. Dispose of residues and contaminated materials as hazardous chemical waste under local regulations. Always read the supplier's Safety Data Sheet before first use.

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