Lactitol

CAS Number
585-86-4
EC Number
209-566-5
E Number
E964

What is Lactitol?

Lactitol (CAS 585-86-4), also known commercially as Importal and classified as E966, is a sugar alcohol derived from lactose used primarily as a reduced-calorie bulk sweetener.

Where is Lactitol used?

  • Food manufacturing: replaces sucrose in sugar-free confectionery, baked goods and chocolate
  • Pharmaceuticals: excipient in tablet manufacturing and active osmotic laxative ingredient
  • Personal care: humectant in skincare and oral care formulations
  • It also functions as a prebiotic in functional food and dietary supplement products targeting gut health.

Good to know: Its low glycemic response and prebiotic activity make it a functional ingredient beyond simple sweetening applications. It delivers comparable bulk and texture at roughly half the caloric value of traditional sugar.

Commercial specifications

  • Monohydrate is the most commercially prevalent version
  • Food-grade and pharmaceutical-grade material compliant with Ph. Eur. and USP monographs
  • Bulk supply in multi-kilogram bags through to pallet quantities

Other Names (Synonyms)

D-lactitol|4-O-beta-D-Galactopyranosyl-D-glucitol|Importal|Lactosit|Miruhen|D-Glucitol, 4-O-β-D-galactopyranosyl-|Glucitol, 4-O-β-D-galactopyranosyl-, D-|4-O-β-D-Galactopyranosyl-D-glucitol|E966

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What are the physical properties of Lactitol?

Melting Point 146 °C
Boiling Point 788.5±60.0 °C(Predicted)
Density 1.69±0.1 g/cm3(Predicted)
Color White to Off-White
Odor odorless
Form Solid
Log P -3.11
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