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| CAS No.: | 59-23-4 |
|---|---|
| Name: | D-Galactose |
| Article Data: | 452 |
| Cas Database | |
| Molecular Structure: | |
|
|
|
| Formula: | C6H12O6 |
| Molecular Weight: | 180.158 |
| Synonyms: | Galactose,D- (8CI);(+)-Galactose;D-(+)-Galactose; |
| EINECS: | 200-416-4 |
| Density: | 1.581 g/cm3 |
| Melting Point: | 168-170°C(lit.) |
| Boiling Point: | 527.1 °C at 760 mmHg |
| Flash Point: | 286.7 °C |
| Solubility: | Soluble in water. |
| Appearance: | white. |
| Hazard Symbols: | Xi |
| Risk Codes: | 36/37/38 |
| Safety: | 22-24/25-36/37/39-27-26 |
| PSA: | 110.38000 |
| LogP: | -3.22140 |
- 59234-48-92,6-Piperidinedicarboxylicacid, 2,6-dimethyl ester, hydrochloride (1:1), (2R,6S)-rel-
- 592-34-7Carbonochloridic acid,butyl ester
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| Conditions | Yield |
|---|---|
| With H-Beta zeolite; water In methanol for 24h; Product distribution; Further Variations:; Reagents; Temperatures; Heating; | 96% |
- 3150-24-1
4-nitrophenyl-β-D-galactopyranoside
A
- 59-23-4
D-Galactose
B
- 20972-29-6
D-galactose-β-1,3-N-acetyl-galactosamine
| Conditions | Yield |
|---|---|
| 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; |
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Chemistry
Molecular Structure:
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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
Uses
Galactose (CAS NO.59-23-4) is considered a nutritive sweetener because it has food energy.
Consensus Reports
Reported in EPA TSCA Inventory.
Safety Profile
Hazard Codes of Galactose (CAS NO.59-23-4): 
Xi
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.
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.