| Product Identification | Back to Contents | 【Product Name】
4-(beta-D-Galactosido)-D-glucose | 【Synonyms】
4-(b-D-Galactosido)-D-glucose
D-Glucose, 4-O-b-D-galactopyranosyl
D-Lactose
Lactin
Lactobiose
Milk sugar | 【CAS】
63-42-3 | 【Formula】
C12H22O11 | 【Molecular Weight】
342.3 | 【EINECS】
200-559-2 | 【RTECS】
OD9625000 | 【RTECS Class】
Tumorigen; Reproductive Effector; Natural Product | 【Merck】
12,5356 | 【Beilstein/Gmelin】
93796 | 【Beilstein Reference】
4-17-00-03066 |
| Physical and Chemical Properties | Back to Contents | 【Appearance】
White hard crystalline powder. | 【Solubility in water】
Very soluble | 【Melting Point】
222.8 | 【Boiling Point】
592 | 【pKa/pKb】
12.39 (pKa) | 【Partition Coefficient】
-4.12 | 【Usage】
Both forms of lactose are employed, with the form predominating: as a nutrient in preparing modified milk and food for infants and convalescents (whittier). |
| First Aid Measures | Back to Contents | 【Ingestion】
Get medical aid if irritation or symptoms occur. | 【Inhalation】
Remove from exposure to fresh air immediately. Get medical aid if cough or other symptoms appear. | 【Skin】
Get medical aid if irritation develops or persists. Flush skin with plenty of soap and water. | 【Eyes】
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid. |
| Handling and Storage | Back to Contents | 【Storage】
Store in a cool, dry place. Keep container closed when not in use. | 【Handling】
Wash thoroughly after handling. Use with adequate ventilation. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation. |
| Hazards Identification | Back to Contents | 【Ingestion】
May cause gastrointestinal irritation with nausea, vomiting and diarrhea. Low hazard for usual industrial handling. | 【Inhalation】
Low hazard for usual industrial handling. | 【Skin】
May cause skin irritation. Low hazard for usual industrial handling. | 【Eyes】
May cause eye irritation. |
| Exposure Controls/Personal Protection | Back to Contents | 【Personal Protection】
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure. | 【Respirators】
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary. |
| Fire Fighting Measures | Back to Contents | 【Fire Fighting】
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. To extinguish fire use water spray, dry chemical, carbon dioxide, or chemical foam. |
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