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D-Lactose monohydrate

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D-Lactose monohydrate Basic information

Product Name:
D-Lactose monohydrate
Synonyms:
  • ^a-D-Lactose monohydrate, ACS
  • Lactose, D(+)-, Monohydrate
  • LACTOSE extrapure AR
  • β-D-Gal-(1-4)-D-Glc, 4-O-β-D-Galactopyranosyl-D-glucose, Lactosum monohydricum, Milk sugar
  • β-D-Gal-(1-4)-D-Glc, 4-O-β-D-Galactopyranosyl-D-glucose, Milk sugar
  • Lactose, Monohydrate, Powder, Reagent
  • alpha-D-Lactose monohydrate, ACS
  • D-(+)-LACTOSE MONOHYDRATE EP STANDARD
CAS:
64044-51-5
MF:
C12H24O12
MW:
360.31
EINECS:
613-418-9
Product Categories:
  • Oligosaccharides
  • medicine excipents
Mol File:
64044-51-5.mol
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D-Lactose monohydrate Chemical Properties

Melting point:
~215 °C (dec.)
Density 
1.525
storage temp. 
room temp
solubility 
H2O: 0.1 g/mL, clear, colorless
form 
Crystalline
Specific Gravity
1.525
color 
White
PH
3.5-6.0 (25℃, 0.5M in H2O)
optical activity
[α]22/D +52.4°, c = 4.5 in H2O
Water Solubility 
Soluble in water (warm) (0.1 g/mL), and ethanol (very slightly soluble). Insoluble in chloroform, and ether.
λmax
λ: 260 nm Amax: 0.02
λ: 280 nm Amax: 0.02
Merck 
14,5343
BRN 
3768231
Stability:
Stable. Incompatible with strong oxidizing agents.
LogP
-3.409 (est)
CAS DataBase Reference
64044-51-5(CAS DataBase Reference)
NIST Chemistry Reference
Lactose monohydrate(64044-51-5)
EPA Substance Registry System
Lactose monohydrate (64044-51-5)
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Safety Information

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
26-36-24/25
WGK Germany 
3
RTECS 
OD9625000
3
TSCA 
Yes
HS Code 
17021900

MSDS

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D-Lactose monohydrate Usage And Synthesis

Description

D-Lactose monohydrate is a type of lactose. D-Lactose is composed of D-galactose and D-glucose. D-Lactose monohydrate can be used as sweetener or excipient.

Chemical Properties

white or cream powder

Uses

mosquito-repellent

Uses

[a]22 +52.4°, c = 4.5 in H2O

Uses

D-Lactose monohydrate can be used as chromatographic adsorbent.

Definition

ChEBI: Alpha-lactose monohydrate is a glycoside.

General Description

Pharmaceutical secondary standards for application in quality control, provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards.

Biochem/physiol Actions

Lactose is a dissacharide formed by the condensation of one galactose and one glucose molecule. Lactose is the major sugar in the milk of most species, typically present between 2-8%. The enzyme lactase hydrolyzes lactose to its constituent monosaccharides. In neonates, glucose released via the action of lactase is a major energy source.

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