59-23-4
D-Galactose
CAS: 59-23-4
Molecular Formula: C6H12O6
59-23-4 - Names and Identifiers
| Name | D-Galactose |
| Synonyms | Gal Galactose D-Galactose D(+)galactose D(+)-Galactose galactose, pure D-(+)-Galactose D-Galactose, CP Galactose (200 mg) alpha-Galactose(D) D(+)Galactose anhydrous alpha-D-galactopyranose D-(+)-GALACTOSE, BIOTECH D(+)galactose sigmaultra D-Galactose, D-(+)-Galactose D(+)-Galactose, extra pure, Ph Ned, Ph Helv D(+)-GALACTOSE ANHYDROUS CELL CULTURE*TE STED D(+)-GALACTOSE, FOR BIOTECHNOLOGICAL PUR POSES |
| CAS | 59-23-4 |
| EINECS | 200-416-4 |
| InChI | InChI=1/C6H12O6/c7-1-3(9)5(11)6(12)4(10)2-8/h1,3-6,8-12H,2H2/t3-,4+,5+,6-/m0/s1 |
| InChIKey | GZCGUPFRVQAUEE-DPYQTVNSSA-N |
59-23-4 - Physico-chemical Properties
| Molecular Formula | C6H12O6 |
| Molar Mass | 180.16 |
| Density | 1,5 g/cm3 |
| Melting Point | 168-170°C(lit.) |
| Boling Point | 232.96°C (rough estimate) |
| Specific Rotation(α) | +79.0～+81.0°(D/20℃) (c=10, dil. NH4OH) |
| Flash Point | 286.7°C |
| Water Solubility | Soluble in water. |
| Solubility | Soluble in water, soluble in pyridine, slightly soluble in ethanol and glycerin. |
| Vapor Presure | 2.59E-13mmHg at 25°C |
| Appearance | White crystal |
| Color | White |
| Odor | Odorless |
| Merck | 14,4335 |
| BRN | 1724619 |
| pKa | pK1:12.35 (25°C) |
| PH | 4.5-6.0 (H2O)Aqueous solution |
| Storage Condition | room temp |
| Sensitive | Moisture sensitivity |
| Refractive Index | 80 ° (C=10, H2O) |
| MDL | MFCD00151230 |
| Physical and Chemical Properties | A monosaccharide that forms lactose in combination with glucose. White crystals. Crystallization from an aqueous solution contains one molecule of water of crystallization. Melting point 118-120 °c. When crystallized from an ethanol solution, it becomes anhydrous. Melting point 165-168 °c. Soluble in water and ethanol. Slightly soluble in glycerol. Right optical rotation. |
| Use | For organic synthesis, medicinal for the determination of liver function |
59-23-4 - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | 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 |
| FLUKA BRAND F CODES | 3 |
| TSCA | Yes |
| HS Code | 29400090 |
59-23-4 - Reference Information
| pH range of acid-base indicator discoloration | 5 - 7 at 180g/l at 25°C |
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Use | D-galactose is an important medium and synthetic component in enzyme and biochemical research. It is also widely used in the pharmaceutical field, both as a carrier and as an active substance. as a component of galactosyltransferase labeling buffer, growth of Lactobacillus was supplemented in MRS broth to induce expression of uncoupling protein (UCP) in yeast transformation. It is used in organic synthesis and in medicine to measure liver function nutritional medicine. |
| production method | 1.? Lactose can be hydrolyzed to D( +)-galactose in acidic medium, then dissolved with water, and then precipitated by ethanol to obtain a pure product. |
Last Update：2024-04-09 20:52:54
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