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CAS 5989-81-1

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α-Lactose monohydrate

Description:
α-Lactose monohydrate, with the CAS number 5989-81-1, is a disaccharide sugar composed of glucose and galactose units linked by a β-1,4-glycosidic bond. It is a white, crystalline powder that is soluble in water, exhibiting hygroscopic properties due to the presence of a water molecule in its monohydrate form. This compound is commonly found in milk and dairy products and is often used as a sweetener, stabilizer, and bulking agent in the food and pharmaceutical industries. α-Lactose monohydrate has a relatively low sweetness compared to other sugars and is less soluble than its anomer, β-lactose. Its melting point is typically around 200°C, and it is known to undergo caramelization when heated. Additionally, it is utilized in various applications, including as a filler in tablets and as a medium for microbial growth in laboratory settings. Overall, α-lactose monohydrate is valued for its functional properties and its role in nutrition and food science.
Formula:C12H22O11·H2O
InChI:InChI=1S/C12H22O11.H2O/c13-1-3-5(15)6(16)9(19)12(22-3)23-10-4(2-14)21-11(20)8(18)7(10)17;/h3-20H,1-2H2;1H2/t3-,4-,5+,6+,7-,8-,9-,10-,11+,12+;/m1./s1
InChI key:InChIKey=WSVLPVUVIUVCRA-KPKNDVKVSA-N
SMILES:O([C@@H]1[C@@H](CO)O[C@H](O)[C@H](O)[C@H]1O)[C@@H]2O[C@H](CO)[C@H](O)[C@H](O)[C@H]2O.O
Synonyms:
  • 4-O-alpha-L-allopyranosyl-beta-L-talopyranose
  • 4-O-alpha-L-gulopyranosyl-beta-L-talopyranose
  • 4-O-beta-D-galactopyranosyl-alpha-D-glucopyranose hydrate (1:1)
  • 4-O-beta-D-galactopyranosyl-beta-D-glucopyranose hydrate
  • 4-O-beta-D-mannopyranosyl-beta-L-talopyranose
  • 4-O-beta-D-talopyranosyl-beta-L-talopyranose
  • 4-O-β-<span class="text-smallcaps">D</smallcap>-Galactopyranosyl-α-<smallcap>D</span>-glucopyranose monohydrate
  • Aeroflo 20
  • Aeroflo 65
  • Aeroflo 95
  • See more synonyms
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