LACTOBIONIC ACID

Synonyms. Lactobionic acid; Galactosylgluconic acid; 4-(beta-D-Galactosido)-D-gluconic acid; 4-O-beta-D-Galactopyranosyl-D-gluconic acid; (2R,3R,4R,5R)-2,3,5,6-tetrahydroxy-4-((2S,3R,4S,5R, 6R)- 3,4,5-trihydroxy-6- (hydroxymethyl)oxan-2-yl) oxyhexanoic acid;

LACTOBIONIC ACID

Click for original image

 

PRODUCT IDENTIFICATION

CAS RN

96-82-2

EINECS RN

202-538-3

FORMULA

C12H22O12

MOLE WEIGHT

358.30

H.S CODE

 2932.99.9090

SMILES

 O([C@@H]([C@@H]([C@H](C(O)=O)O)O)[C@@H](CO)O) [C@@H] 1O[C@@ H]([C@H](O)[C@@H]([C@H]1O)O)CO

CLASSIFICATION

Disaccharide, Sugar acid

EXTRA NOTES

Lactobionic acid (4-O-β-galactopyranosyl-D-gluconic acid) is a sugar acid. It is a disaccharide formed from gluconic acid and galactose. It can be formed by oxidation of lactose. The carboxylate anion of lactobionic acid is known as lactobionate. (wikipedia)

 

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE.

white crystalline powder

MELTING POINT

113 ~ 118 C

BOILING POINT

 

DENSITY

 

SOLUBILITY IN WATER

Freely soluble

SOLVENT SOLUBILITY

 

VAPOR DENSITY

 

log P(octanol-water)

 -4.89

VAPOR PRESSURE

  

AUTOIGNITION TEMP

  
pK

 

REFRACTIVE INDEX

 

FLASH POINT

 

 

STABILITY AND REACTIVITY
STABILITY Stable under normal conditions.

INCOMPATIBLE MATERIALS

Strong oxidizing agents

POLYMERIZATION

Has not been reported

NFPA RATINGS

Health: 0, Flammability: 0, Reactivity: 0

 

EXTERNAL LINKS & GENERAL DESCRIPTION

USA.gov - Lactobionic acid

Wikipedia Linking - Lactobionic acid

Google Scholar Search - Lactobionic acid

U.S. National Library of Medicine - Lactobionic acid

PubChem Compound Summary - Lactobionic acid

http://www.ebi.ac.uk/chebi/ -  Lactobionic acid

http://www.ncbi.nlm.nih.gov/ -  Lactobionic acid

http://www.sigmaaldrich.com
Application: Lactobionic acid, an α-hydroxyacid (AHA) with antioxidation activity, is used in the development of cosmeceuticals for skin. Lactobionic acid is used in the development of targeting drug delivery systems, such as microcapsules.

 

SALES SPECIFICATION

APPEARANCE

white crystalline powder

ASSAY

98% min

MELTING POINT

113 ~ 117 C

OPTICAL ROTATION

+23° ~ +28° (c=4, water)

LOSS ON DRYING

5% max

HEAVY METALS

10ppm max

 

TRANSPORT & REGULATORY INFORMATION

UN NO.

 

HAZARD CLASS

 

PACKING GROUP  

 

SAFETY INFORMATION

HAZARD OVERVIEW

GHS (Globally Harmonised System) Classification: Not a dangerous substance. Potential Health Effects: Eyes - May cause eye irritation. Skin - May be harmful if absorbed through skin May cause skin irritation. Inhalation - May be harmful if inhaled. May cause respiratory tract irritation. Ingestion - May be harmful if swallowed.

HAZARD CODES

 

RISK PHRASES

 

SAFETY PHRASES

 

 

PACKING

Preserved in light-resistant and well-closed bottles