CAS Registry Number
CAS 596-01-0 — alpha-Naphtholphthalein
CAS 596-01-0
Alpha-Naphtholphthalein is a pH indicator used in analytical chemistry, particularly in titrations involving strong bases. It changes color from colorless to deep blue in basic solutions. Available in powder form with a purity of ≥98.0% (HPLC), it has a molecular weight of 274.27 g/mol and a melting point of 240–242 °C. Molekula supplies alpha-Naphtholphthalein from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Molekula products for CAS 596-01-0
Molekula has supplied fine chemicals and biochemicals since 2000 from ISO 9001:2015 and ISO 14001:2015 certified facilities. Every dispatched batch is logged with a batch number and matched to a Certificate of Analysis, and Safety Data Sheets are available in five languages.