CAS Registry Number

CAS 91-20-3 — Naphthalene

Naphthalene is a polycyclic aromatic hydrocarbon commonly used as a precursor in the synthesis of dyes, pesticides, and pharmaceuticals, as well as a moth repellent in its pure form. It appears as white, volatile crystals with a characteristic odor. This chemical has a CAS number of 91-20-3, a molecular formula of C10H8, and a molecular weight of 128.17 g/mol. It is typically stored at ambient temperatures and carries a signal word of "Warning" for safety classification. Molekula supplies Naphthalene from research to bulk quantities with full documentation and ISO 9001:2015 traceability.