R-Alpha Lipoic Acid

R-alpha lipoic acid, or R-thioctic acid, is the naturally occurring R-enantiomer of alpha lipoic acid, a sulfur-containing organic acid with a dithiolane ring that occurs in cells as a cofactor for several enzyme complexes. Nustras supplies it as a yellow crystalline powder for use as an ingredient in nutritional formulations where the single R-form, rather than the racemic mixture, is specified.

R-alpha lipoic acid is formulated into supplements in capsule, tablet and softgel form, into nutritional premixes and into powdered formulations where a single-enantiomer lipoic acid ingredient is specified.

The material is a yellow crystalline powder with a characteristic odour, with molecular formula C8H14O2S2 and molecular weight 206.3, standardised to specification. Identity is confirmed by infrared spectroscopy, assay by HPLC and enantiomeric purity by chiral HPLC; specific rotation, melting range, loss on drying, residual solvents, heavy-metal and microbial limits are supplied to specification and confirmed on each lot's certificate of analysis.

Nustras supplies R-alpha lipoic acid in bulk commercial quantities, in sealed packaging and fibre drums, to manufacturers and formulators internationally, with a certificate of analysis, specification sheet and country-of-origin documentation on every lot. Alpha lipoic acid is an accepted supplement ingredient in major markets; buyers confirm the permitted form, level and claim for their application. Contact us for grade, pricing per kilogram and lead time.