CAS Registry Number

CAS 599-04-2 — D-(-)-Pantolactone

D-(-)-Pantolactone is a chiral lactone derived from pantothenic acid (vitamin B5), widely used in pharmaceutical synthesis, flavor and fragrance formulations, and as an intermediate in the production of pantotheine and other vitamin derivatives. It serves as a key building block in organic chemistry for creating optically active compounds. This chemical has a CAS number of 599-04-2, is non-hazardous with no signal word classification, and appears as a white crystalline solid with a melting point of approximately 56–58°C. It is soluble in water and organic solvents like ethanol and acetone. Molekula supplies D-(-)-Pantolactone from research to bulk quantities with full documentation and ISO 9001:2015 traceability.