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D-Galactose

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Name

D-Galactose

EINECS 200-416-4
CAS No. 59-23-4 Density 1.581 g/cm3
PSA 110.38000 LogP -3.22140
Solubility Soluble in water. Melting Point 168-170°C(lit.)
Formula C6H12O6 Boiling Point 527.1 °C at 760 mmHg
Molecular Weight 180.158 Flash Point 286.7 °C
Transport Information N/A Appearance white.
Safety 22-24/25-36/37/39-27-26 Risk Codes 36/37/38
Molecular Structure Molecular Structure of 59-23-4 (D-Galactose) Hazard Symbols Xi
Synonyms

Galactose,D- (8CI);(+)-Galactose;D-(+)-Galactose;

Article Data 452

D-Galactose Synthetic route

4064-06-6

1,2:3,4-di-O-isopropylidene-α-D-galactopyranose

59-23-4

D-Galactose

Conditions
ConditionsYield
With H-Beta zeolite; water In methanol for 24h; Product distribution; Further Variations:; Reagents; Temperatures; Heating;96%
Conditions
ConditionsYield
With β-GaL-3-NTag from B. circulans ATCC 31382; water; methyltrioctylammonium bistriflamide In aq. phosphate buffer at 37℃; for 3h; pH=6; Enzymatic reaction;A 9%
B 91%
With β-GaL-3-NTag from B. circulans ATCC 31382; water; 1-butyl-3-methylimidazolium methylsulfate In aq. phosphate buffer at 37℃; for 3h; pH=6; Enzymatic reaction;A 78%
B 22%
With β-galactosidase-3-N-terminal 6-histidine tag from Bacillus circulans ATCC 31382 In aq. phosphate buffer pH=6; Enzymatic reaction;

D-Galactose Chemical Properties

Molecular Structure:

Molecular Formula: C6H12O6
Molecular Weight: 180.1559
IUPAC Name: (3R,4S,5R,6R)-6-(Hydroxymethyl)oxane-2,3,4,5-tetrol
Synonyms of Galactose (CAS NO.59-23-4): 4-01-00-04336 (Beilstein Handbook Reference) ; AI3-18440 ; BRN 1724619 ; D(+)-Galactose ; EINECS 200-416-4 ; D-Galactose ; Galactose, pure
CAS NO: 59-23-4
Classification Code: Reproductive Effect
Melting point: 168-170 °C
Index of Refraction: 1.573
Molar Refractivity: 37.54 cm3
Molar Volume: 113.9 cm3
Surface Tension: 92 dyne/cm
Density: 1.581 g/cm3
Flash Point: 286.7 °C
Enthalpy of Vaporization: 92.22 kJ/mol
Boiling Point: 527.1 °C at 760 mmHg
Vapour Pressure: 2.59E-13 mmHg at 25°C 

D-Galactose Uses

 Galactose (CAS NO.59-23-4) is considered a nutritive sweetener because it has food energy.

D-Galactose Consensus Reports

Reported in EPA TSCA Inventory.

D-Galactose Safety Profile

Hazard Codes of Galactose (CAS NO.59-23-4): IrritantXi
Risk Statements: 36/37/38 
R36/37/38: Irritating to eyes, respiratory system and skin.
Safety Statements: 22-24/25-36/37/39-27-26 
S22: Do not breathe dust. 
S24/25: Avoid contact with skin and eyes. 
S36/37/39: Wear suitable protective clothing, gloves and eye/face protection. 
S27: Take off immediately all contaminated clothing. 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
WGK Germany: 3
RTECS: LW5490000
F: 3
HS Code: 29400090
Experimental teratogenic and reproductive effects. When heated to decomposition it emits acrid smoke and irritating fumes.

D-Galactose Specification

 Galactose (CAS NO.59-23-4) is hazardous, so the first aid measures and others should be known. Such as: When on the skin: first, should flush skin with plenty of water immediately for at least 15 minutes while removing contaminated clothing and shoes. Secondly, get medical aid. If in the eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Then get medical aid soon. While, it's inhaled: Remove from exposure and move to fresh air immediately. Give artificial respiration while not breathing. When breathing is difficult, give oxygen. And as soon as to get medical aid. Then you have the ingesting of the product : If victim is conscious and alert, give 2-4 cupfuls of milk or water. Get medical aid immediately. Wash mouth out with water, and get medical aid immediately. D-Galactose should be stored in a tightly closed container. It should keep from contact with oxidizing materials. And be stored in a cool, dry, well-ventilated area away from incompatible substances.

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