Collection: Naphthalonitriles [Phthalocyanine Building Blocks]

Naphthalonitriles [Phthalocyanine Building Blocks] — this category brings together naphthalene derivatives bearing two adjacent nitrile groups (dicyanonaphthalenes) along with related precursors such as diiminoisoindolines, which serve as building units for naphthalocyanine synthesis via cyclotetramerization reactions. Additional substituents such as bromo, nitro, or hydroxyl groups on the ring provide electronic variation in the final product.

Compounds such as 1,2-Naphthalenedicarbonitrile and 6-Bromo-2,3-dicyanonaphthalene are cyclized together with metal salts to produce naphthalocyanine complexes studied in photochemistry and near-infrared light-absorbing materials. Substituted derivatives such as 2,3-Dicyano-1,4-dihydroxy-5-nitronaphthalene and 2,3-Dibromo-6,7-dicyanonaphthalene are used by synthesis researchers to direct the optical properties and solubility of the resulting pigments.

Example products in this collection: TCI B1390 70484-02-5 6-Bromo-2,3-dicyanonaphthalene, TCI D1977 22856-30-0 2,3-Dicyanonaphthalene, TCI N0578 19291-76-0 1,2-Naphthalenedicarbonitrile, TCI D2009 65558-69-2 1,3-Diiminobenz[f]isoindoline, TCI D2434 4655-62-3 2,3-Dicyano-1,4-dihydroxy-5-nitronaphthalene, TCI D2027 184026-06-0 2,3-Dicyano-6-nitronaphthalene, TCI D2282 74815-81-9 2,3-Dibromo-6,7-dicyanonaphthalene.

Pay attention to the pattern and position of substituents on the naphthalene ring, as they determine the symmetry and optical properties of the macrocyclic compound to be synthesized, and ensure high purity given that the cyclization reaction is sensitive to impurities. All products are genuine Tokyo Chemical Industry (TCI) Japan products, with purity, packaging, and storage conditions listed on each item's page.

Other categories parallel under Phthalocyanine Building Blocks, often used together in one laboratory workflow:

• Phthalonitriles [Phthalocyanine Building Blocks]
• Dicyanopyrazines and Analogs [Phthalocyanine Building Blocks]

Back to Phthalocyanine Building Blocks. For large-volume procurement, special packaging, or specific grades, contact the AMI Scientific team — official TCI Japan distributor in Indonesia — to check availability and lead time directly from Japan.